George Buildings · Global sourcing guide
The best door and window manufacturers for your project are the ones that can supply the right product, document its performance and support it where you build.
Start with your project country and the type of opening you need. Andersen, Pella and Marvin are useful starting points for residential windows; Masonite, Therma-Tru and Simpson offer door-focused routes. For a commercial facade, a system supplier and its fabricator may be more relevant than a household replacement-window brand.
This guide brings together 89 manufacturers, brands and specialist suppliers across six regional sections. Use the quick comparison to build a shortlist of three to five suitable businesses, then check the specific product, delivery and installation scope.
Which Door and Window Companies Fit Your Project?
| Your project | Starting points | First comparison |
|---|---|---|
| Residential windows in North America | Andersen Windows & Doors, Pella, Marvin Windows and Doors, Milgard Windows & Doors | Frame material, operating style, glass package and local service. |
| Interior or entrance doors | Masonite, Therma-Tru Doors, Simpson Door Company | Door construction and the complete frame, sill, glazing and hardware assembly. |
| Coastal or impact-product research | PGT Windows and Doors, Custom Window Systems (CWS), Air Master Windows and Doors | Approval for the exact unit and location; “impact” in a brand description is not enough. |
| Commercial windows and facades | YKK AP America, Crystal Window & Door Systems, Quaker Windows & Doors | Project submittals, fabrication responsibilities and installation coordination. |
| European windows and doors | Internorm, Drutex, DAKO | Product system, dealer coverage and country-specific documents. |
| Profile systems and fabrication | VEKA, Aluplast, REHAU Window Solutions | Who makes the completed window and carries its product warranty. |
| China-based window and door sourcing | PHONPA, EDUCE Doors & Windows, PAIYA | Detailed drawings, glass, hardware, export scope and local installation. |
| Doors and windows within a wider material package | George Buildings | A coordinated product schedule and a clearly agreed supply and support scope. |
We reviewed public company and product information for this October 2026 update. Linked sources explain the published product scope; the comparison questions are our editorial guidance. We have not independently tested every product or audited every factory. Regional sections are navigation routes, not proof of a product’s manufacturing origin.
George Buildings publishes this guide and offers building-material sourcing services. Listing another business does not imply a partnership, dealership or endorsement. Brand entries may share a parent company, so this is not a count of independent factories.
Door and Window Manufacturers & Suppliers in US and Canada
For US and Canadian projects, first confirm local product availability and the business that will measure, install and service the units. The section includes residential manufacturers, door specialists and several architectural or supply businesses; their roles are identified separately.
Ten window-manufacturer starting points in the US and Canada: Andersen, JELD-WEN, Marvin, Pella, Milgard, PGT, Starline, Harvey, MI and Sierra Pacific. These are ten relevant options from the directory, not a sales ranking or a claim that one brand wins every project.
| Company | Supply role | Product focus |
|---|---|---|
| Andersen Windows & Doors | Window and door manufacturer | Residential windows and patio doors |
| JELD-WEN | Window and door manufacturer | Windows, interior doors and exterior doors |
| Marvin Windows and Doors | Window and door manufacturer | Window and door collections including Ultimate, Modern, Elevate and Essential |
| Pella | Window and door manufacturer | Residential windows and patio doors |
| Milgard Windows & Doors | Window and door manufacturer | Residential windows and patio doors |
| PGT Windows and Doors | Window and door manufacturer | Windows, entry doors and patio doors, including impact product lines |
| Starline Windows | Window and door manufacturer | Window and door products with a high-rise project offering |
| Harvey Windows + Doors | Window and door manufacturer | Residential windows and doors |
| MI Windows and Doors | Window and door manufacturer | Windows and patio doors |
| Sierra Pacific Windows | Window and door manufacturer | Windows and doors for residential and commercial applications |
Jump to a company in US and Canada · 48 entries
- Andersen Windows & Doors
- JELD-WEN
- Marvin Windows and Doors
- Masonite
- Pella
- Ply Gem
- VELUX USA
- YKK AP America
- Kömmerling
- Milgard Windows & Doors
- PGT Windows and Doors
- Starline Windows
- Therma-Tru Doors
- Alside
- Harvey Windows + Doors
- MI Windows and Doors
- Woodgrain
- Champion
- Earthwise Windows & Doors
- Polaris Windows & Doors
- Sierra Pacific Windows
- Steves & Sons
- Weather Shield
- All Weather at Home
- Westlake Royal Windows
- Cascade Windows
- Crystal Window & Door Systems
- Custom Window Systems (CWS)
- Four Seasons Sunrooms
- Kolbe Windows & Doors
- Plastpro
- ProVia
- Quaker Windows & Doors
- Air Master Windows and Doors
- Durabuilt Windows & Doors
- International Window Corporation
- Loewen
- NewSouth Window Solutions
- Simpson Door Company
- Trinity Glass International
- United Window & Door
- Wallside Windows
- Wincore Windows & Doors
- AMSCO Windows
- Anlin Windows & Doors
- Builders FirstSource
- Fenplast
- Lincoln Windows
Andersen Windows & Doors
Window and door manufacturer
Product focus: Residential windows and patio doors.
Before you shortlist: Compare the chosen series, frame material and local dealer installation scope.
JELD-WEN
Window and door manufacturer
Product focus: Windows, interior doors and exterior doors.
Before you shortlist: Specify the country catalogue, door construction and exact window series in the quote.
Marvin Windows and Doors
Window and door manufacturer
Product focus: Window and door collections including Ultimate, Modern, Elevate and Essential.
Before you shortlist: Compare sightlines, opening sizes and the material options in each collection.
Masonite
Door manufacturer
Product focus: Interior and exterior residential doors.
Before you shortlist: Confirm slab-only versus prehung supply, frame details and the required door performance.
Pella
Window and door manufacturer
Product focus: Residential windows and patio doors.
Before you shortlist: Compare the actual product line, glass package and installer responsibilities.
Ply Gem
Window and door brand
Product focus: Windows and patio doors for new construction and replacement.
Before you shortlist: Check regional product availability and the frame detail needed for your wall construction.
VELUX USA
Skylight specialist
Product focus: Skylights, roof daylighting products and accessories.
Before you shortlist: Confirm roof pitch, flashing kit, opening method and the installer for the roof penetration.
YKK AP America
Architectural systems manufacturer
Product focus: Commercial windows, entrances and facade systems.
Before you shortlist: Request the specified system, fabrication route and project submittal package.
Kömmerling
Profile and system supplier
Product focus: PVC window and door systems.
Before you shortlist: Identify the fabricator who will manufacture and warrant the completed window.
Milgard Windows & Doors
Window and door manufacturer
Product focus: Residential windows and patio doors.
Before you shortlist: Check service coverage for your ZIP code before comparing a product series.
PGT Windows and Doors
Window and door manufacturerProduct focus: Windows, entry doors and patio doors, including impact product lines.
Before you shortlist: Match any impact approval to the exact model, dimensions, glass and installation detail.
Starline Windows
Window and door manufacturer
Product focus: Window and door products with a high-rise project offering.
Before you shortlist: Confirm whether the quoted system and supply team suit your building type and location.
Therma-Tru Doors
Entry-door specialist
Product focus: Entry and exterior door systems.
Before you shortlist: Compare the complete assembly: slab, frame, sill, weather seals, glazing and hardware.
Alside
Exterior building-product supplier
Product focus: Window and patio-door offerings alongside exterior building products.
Before you shortlist: Identify the window series and the local selling and installation business.
Harvey Windows + Doors
Window and door manufacturer
Product focus: Residential windows and doors.
Before you shortlist: Request the exact product line, regional dealer route and written warranty exclusions.
MI Windows and Doors
Window and door manufacturer
Product focus: Windows and patio doors.
Before you shortlist: Compare new-construction and replacement frame options for the actual opening.
Woodgrain
Door and millwork supplier
Product focus: Doors, mouldings and millwork.
Before you shortlist: Identify the supplying division and whether the quote includes a finished door assembly.
Champion
Replacement-window and home-improvement business
Product focus: Custom-built replacement windows, doors and sunrooms.
Before you shortlist: Compare the installed package, removal work, interior finishing and service coverage.
Earthwise Windows & Doors
Regional manufacturer network
Product focus: Vinyl windows and doors through regional businesses.
Before you shortlist: Confirm which member company manufactures, sells and services the proposed product.
Polaris Windows & Doors
Window and door manufacturer
Product focus: Windows in several operating styles and patio doors.
Before you shortlist: Request the actual series and glass package rather than comparing operating style alone.
Sierra Pacific Windows
Window and door manufacturer
Product focus: Windows and doors for residential and commercial applications.
Before you shortlist: Confirm the selected line, finish, large-opening limits and project support route.
Steves & Sons
Door manufacturer
Product focus: Interior and exterior doors.
Before you shortlist: Confirm door core, skin, finish, hinge preparation and frame supply.
Weather Shield
Window and door manufacturer
Product focus: Windows and doors, including replacement-window options.
Before you shortlist: Ask for the current series literature, available sizes and installation requirements.
All Weather at Home
Window and door manufacturerProduct focus: Canadian window and door supply; formerly presented as All Weather Windows.
Before you shortlist: Confirm the local dealer or installation route and the product configuration for your climate.
Westlake Royal Windows
Window manufacturerProduct focus: Vinyl windows within the Westlake Royal building-products portfolio.
Before you shortlist: For an older Boral-related enquiry, verify the current product line and warranty contact.
Cascade Windows
Window and door manufacturer
Product focus: Windows, patio doors, folding doors and multi-slide door systems.
Before you shortlist: Compare panel configuration, sill details, stacking space and the local dealer route.
Crystal Window & Door Systems
Window and door manufacturer
Product focus: Custom window and door products for residential and larger building projects.
Before you shortlist: Ask for project-specific drawings, performance data and the responsible supplying location.
Crystal Window & Door Systems — company / product information ↗
Custom Window Systems (CWS)
Window and door manufacturer
Product focus: Windows, doors and sunroom solutions.
Before you shortlist: Confirm the coastal or non-coastal specification and the exact approval documents required.
Custom Window Systems (CWS) — company / product information ↗
Four Seasons Sunrooms
Sunroom and home-addition specialist
Product focus: Sunrooms and related home-addition systems.
Before you shortlist: Define the complete enclosure, site work, roof connection and installation responsibilities.
Kolbe Windows & Doors
Window and door manufacturer
Product focus: Residential and commercial window and door collections.
Before you shortlist: Review the selected product line, opening operation, customization and shop drawings.
Plastpro
Entry-door manufacturer
Product focus: Fiberglass exterior doors.
Before you shortlist: Ask about door configuration, jamb and sill compatibility, finish and hardware preparation.
ProVia
Door and window manufacturer
Product focus: Doors and windows within a wider exterior building-products range.
Before you shortlist: Compare named door and window series separately, including glass and installation details.
Quaker Windows & Doors
Window and door manufacturer
Product focus: Windows and doors for residential and commercial projects.
Before you shortlist: Check which product family fits the building type and requested performance.
Air Master Windows and Doors
Window and door manufacturer
Product focus: Windows and doors with Puerto Rico and Florida market routes.
Before you shortlist: Use the correct market catalogue and confirm the specific product approval and installer.
Air Master Windows and Doors — company / product information ↗
Durabuilt Windows & Doors
Window and door manufacturer
Product focus: Canadian window and door products.
Before you shortlist: Confirm the exact frame system, glass package and service location.
International Window Corporation
Window and door manufacturer
Product focus: Vinyl and aluminum windows and doors.
Before you shortlist: Compare the selected frame material, series and regional distribution route.
International Window Corporation — company / product information ↗
Loewen
Window and door manufacturer
Product focus: Windows and doors through a dealer-based selection route.
Before you shortlist: Request the current collection, material and finish options, and installation coordination.
NewSouth Window Solutions
Replacement-window business
Product focus: Replacement windows and doors, including impact-window options.
Before you shortlist: Confirm installation coverage and compare the whole installed package for your location.
Simpson Door Company
Wood-door manufacturer
Product focus: Custom wood doors.
Before you shortlist: Specify wood species, exposure conditions, finishing requirements and door assembly details.
Trinity Glass International
Door manufacturer
Product focus: Fiberglass exterior and patio doors.
Before you shortlist: Identify the product brand and assembly, then confirm glass, hardware and warranty terms.
Trinity Glass International — company / product information ↗
United Window & Door
Window and door manufacturer
Product focus: Vinyl new-construction and replacement windows and sliding patio doors.
Before you shortlist: Check the frame detail and whether the quoted range suits residential or larger projects.
Wallside Windows
Replacement-window manufacturer and installer
Product focus: Vinyl replacement windows.
Before you shortlist: Verify service-area coverage, opening measurement, removal and installation inclusions.
Wincore Windows & Doors
Window and door manufacturer
Product focus: Windows, sliding patio doors, impact products and fiberglass entry systems.
Before you shortlist: Keep window-frame material separate from the fiberglass entry-door specification.
AMSCO Windows
Window and door manufacturer
Product focus: Window collections and patio doors.
Before you shortlist: Request series-level technical information for the chosen operating style and dimensions.
Anlin Windows & Doors
Replacement-window and door manufacturer
Product focus: Replacement windows and doors.
Before you shortlist: Confirm the local dealer, glass options, installation scope and warranty service route.
Builders FirstSource
Building-products supplierProduct focus: Windows and doors within a wider building-material supply offering.
Before you shortlist: Identify the actual manufacturer of each quoted product and the local branch responsibilities.
Fenplast
Window and door manufacturer
Product focus: Custom windows and doors supplied through a dealer network in Quebec.
Before you shortlist: Confirm the supplying dealer, product configuration and measurement responsibilities.
Lincoln Windows
Window and patio-door manufacturer
Product focus: Windows and patio doors.
Before you shortlist: Compare current series, finish, glass package and the dealer serving your project.
Back to US and Canada ↑ · Compare project routes
Door and Window Manufacturers & Suppliers in China
China sourcing can involve finished-product manufacturers, interior-door brands and a company coordinating several building-material categories. Compare a named product and a defined export package. A domestic product range does not automatically establish suitability for an overseas project.
| Company | Supply role | Product focus |
|---|---|---|
| TATA Wooden Door | Interior-door brand | Wooden interior doors |
| George Buildings | Building-material supplier and sourcing service | Doors and windows coordinated with a wider building-material package |
| PANPAN | Security-door brand | Security entrance doors |
| PHONPA | Window and door manufacturer | Custom windows, doors, sunrooms and facade products |
| Mexin | Door manufacturer | Interior doors and related door products |
| EDUCE Doors & Windows | Window and door manufacturer | Aluminum doors and windows |
| MYLCH Windows & Doors | Window and door manufacturer | Aluminum and wood-aluminum window and door systems |
| PAIYA | Window and door brand | Window and door systems |
| OPPEIN | Interior-door and home-products supplier | Interior doors within a wider whole-home product portfolio |
Jump to a company in China · 9 entries
TATA Wooden Door
Interior-door brand
Product focus: Wooden interior doors.
Before you shortlist: Specify construction, finish, frame, wall thickness and hardware. This is the Chinese TATA wooden-door brand.
George Buildings
Building-material supplier and sourcing service
Product focus: Doors and windows coordinated with a wider building-material package.
Before you shortlist: Send the project location, drawings and door/window schedule so the supply scope can be defined.
PANPAN
Security-door brandProduct focus: Security entrance doors.
Before you shortlist: Confirm the exact PANPAN business, model and assembly; request current product documentation.
PHONPA
Window and door manufacturer
Product focus: Custom windows, doors, sunrooms and facade products.
Before you shortlist: Confirm the domestic or export product range, glass configuration and destination requirements.
Mexin
Door manufacturer
Product focus: Interior doors and related door products.
Before you shortlist: Confirm the exact Mexin business and model; do not transfer one product’s approval to a whole brand.
EDUCE Doors & Windows
Window and door manufacturer
Product focus: Aluminum doors and windows.
Before you shortlist: Request the specific system drawings, hardware schedule and evidence for the proposed configuration.
MYLCH Windows & Doors
Window and door manufacturer
Product focus: Aluminum and wood-aluminum window and door systems.
Before you shortlist: Confirm the supplying entity, material system and the product documents applicable to your destination.
PAIYA
Window and door brandProduct focus: Window and door systems.
Before you shortlist: Confirm available opening types, glass, hardware and the supplying dealer or export team.
OPPEIN
Interior-door and home-products supplierProduct focus: Interior doors within a wider whole-home product portfolio.
Before you shortlist: Confirm the door core, surface, frame and hardware separately from any cabinetry quotation.
Back to China ↑ · Compare project routes
Door and Window Manufacturers & Suppliers in Europe
Europe offers both completed-window manufacturers and companies supplying profiles, hardware or architectural systems. Identify the fabricator behind the finished unit before comparing quotations. Several international system brands also serve other regions.
| Company | Supply role | Product focus |
|---|---|---|
| Aluplast | Profile and system supplier | uPVC profiles and window-system solutions |
| VEKA | Profile and system supplier | PVC profile systems for windows and doors |
| Winkhaus | Hardware and locking-system supplier | Window hardware, door locking systems and access control |
| Drutex | Window and door manufacturer | Windows, doors and related joinery products |
| DAKO | Window and door manufacturer | Windows, entry and patio doors, roller shutters and garage doors |
| Internorm | Window and door manufacturer | uPVC, uPVC-aluminum and timber-aluminum windows; entrance and sliding doors |
| GEALAN | Profile and system supplier | PVC profiles for windows and doors |
| Schüco | Architectural system supplier | Window, door and facade systems |
| Neuffer | Made-to-measure window and door supplier | Custom windows and doors from Germany |
| AVEPLAST | Window and facade manufacturer | Windows, doors and aluminum-glass facades |
| REHAU Window Solutions | Profile and system supplier | Window-system solutions |
| Aluser | Window and door project supplier | Windows, doors, verandas and facade solutions |
| WERU | Window and door manufacturer | Windows and entrance doors |
Jump to a company in Europe · 13 entries
Aluplast
Profile and system supplier
Product focus: uPVC profiles and window-system solutions.
Before you shortlist: Identify the finished-window fabricator and obtain performance evidence for its assembled product.
VEKA
Profile and system supplier
Product focus: PVC profile systems for windows and doors.
Before you shortlist: Confirm the exact profile system and the company making, glazing and warranting the finished unit.
Winkhaus
Hardware and locking-system supplier
Product focus: Window hardware, door locking systems and access control.
Before you shortlist: Specify the hardware model and compatibility; a hardware brand is not the finished-window manufacturer.
Drutex
Window and door manufacturer
Product focus: Windows, doors and related joinery products.
Before you shortlist: Compare material, glazing, opening configuration and the dealer responsible for your order.
DAKO
Window and door manufacturer
Product focus: Windows, entry and patio doors, roller shutters and garage doors.
Before you shortlist: Confirm the product combination and which items are included in a coordinated package.
Internorm
Window and door manufacturerProduct focus: uPVC, uPVC-aluminum and timber-aluminum windows; entrance and sliding doors.
Before you shortlist: Compare the precise system, glazing and authorized local supply and installation route.
GEALAN
Profile and system supplier
Product focus: PVC profiles for windows and doors.
Before you shortlist: Identify the fabricator and glass specification behind the quoted GEALAN-based window.
Schüco
Architectural system supplierProduct focus: Window, door and facade systems.
Before you shortlist: Identify the partner fabricator, system version and project-specific documentation.
Neuffer
Made-to-measure window and door supplier
Product focus: Custom windows and doors from Germany.
Before you shortlist: Clarify production, shipment, measurement and installation responsibilities for your destination.
AVEPLAST
Window and facade manufacturer
Product focus: Windows, doors and aluminum-glass facades.
Before you shortlist: Define the project package, drawings and on-site coordination requirements.
REHAU Window Solutions
Profile and system supplierProduct focus: Window-system solutions.
Before you shortlist: Confirm the profile family, finished-unit fabricator and market-specific technical documents.
Aluser
Window and door project supplier
Product focus: Windows, doors, verandas and facade solutions.
Before you shortlist: Confirm the chosen product system and which fabrication and installation services are included.
WERU
Window and door manufacturer
Product focus: Windows and entrance doors.
Before you shortlist: Compare the exact series, glazing, security options and installation partner.
Back to Europe ↑ · Compare project routes
Door and Window Manufacturers & Suppliers in Middle East
For Middle East projects, define the glazing, solar-control needs, sealing details and installation scope for the actual building. Confirm product availability and service locally instead of relying on a generic regional brand list.
Jump to a company in Middle East · 9 entries
Creative Windows
Window and door fabricator
Product focus: uPVC windows and doors for the Saudi Arabian market.
Before you shortlist: Confirm the finished unit, profile and hardware combination, and local installation scope.
Wintek
PVC system and window supplier
Product focus: PVC profiles, windows and doors in Saudi Arabia.
Before you shortlist: Clarify whether you are buying profiles or completed units, and identify the fabricating business.
Alzuhour Aluminium Factory
Aluminum fabricator
Product focus: Windows, doors and facades in Saudi Arabia.
Before you shortlist: Confirm the system, glazing, project drawings and the contractor responsible for installation.
Alzuhour Aluminium Factory — company / product information ↗
Specialized Qatar
Window and door specialist
Product focus: uPVC, glass, skylight and pivot-door solutions.
Before you shortlist: Separate each product package and confirm site measurement and installation coverage.
Qatar uPVC Windows + Doors
Window and door supplier
Product focus: uPVC and aluminum windows and doors.
Before you shortlist: Confirm the supplying entity, system, glass and project installation responsibilities.
Qatar uPVC Windows + Doors — company / product information ↗
Gulf uPVC
Window and door manufacturer
Product focus: uPVC doors and windows within a broader product offering.
Before you shortlist: Confirm the profile and reinforcement, glass, installation method and project location.
TAMCO
uPVC window and door manufacturer
Product focus: uPVC windows in tilt, turn, sliding and fixed configurations.
Before you shortlist: Compare the actual glass, seals and performance documentation for the selected configuration.
Oryx Doors & Windows
Door and window supplier / installer
Product focus: Door and window solutions for the UAE.
Before you shortlist: Confirm the product brand, site survey, supply scope and installation responsibilities.
Glassium
Aluminum and glass supplier / installer
Product focus: Aluminum window and architectural glass solutions.
Before you shortlist: Review the selected system and clarify design, fabrication, delivery and installation scope.
Back to Middle East ↑ · Compare project routes
Door and Window Manufacturers & Suppliers in Africa
The Africa references below focus on South African suppliers. They do not represent every national market across the continent. Confirm the supply area, local branch and responsibility for measurement, fabrication and installation.
Jump to a company in Africa · 5 entries
Inso Aluminium
Aluminum window and door supplier
Product focus: Custom aluminum windows and doors.
Before you shortlist: Confirm the product range, local measurement and installation route.
Amdoor
Door and window manufacturer
Product focus: Doors, windows and mouldings.
Before you shortlist: Specify the material, dimensions, finish and whether frames and hardware are included.
Bestwood Joinery
Timber door and window manufacturer
Product focus: Solid Meranti wooden doors, windows and frames.
Before you shortlist: Confirm timber specification, finish, exposure conditions and maintenance requirements.
PG Aluminium
Aluminum fabrication network
Product focus: Aluminum windows, doors and related glazing products.
Before you shortlist: Identify the local franchise or supplying business and confirm who carries the warranty.
AluCape Expert
Aluminum window and door supplier
Product focus: Aluminum windows and doors.
Before you shortlist: Check standard versus custom sizes, glass specification and delivery or installation inclusions.
Back to Africa ↑ · Compare project routes
Door and Window Manufacturers & Suppliers in Australia
Australian projects require product information appropriate to the site and building design. Ask the project designer or certifier to confirm the required performance, and compare the selected system rather than a general brand claim.
Jump to a company in Australia · 5 entries
Southern Star Windows & Doors
Window and door manufacturer
Product focus: Aluminum windows and doors, with Canterbury timber ranges.
Before you shortlist: Compare the aluminum or timber product line and the branch supplying your project.
Southern Star Windows & Doors — company / product information ↗
A&L Windows & Doors
Window and door manufacturer
Product focus: Australian window and door ranges in several operating styles.
Before you shortlist: Request the exact system and project-specific performance and installation information.
Wideline Windows & Doors
Window and door manufacturer
Product focus: Aluminum and timber windows and doors.
Before you shortlist: Compare material, operating style, glass package and the appropriate product range.
Deceuninck Australia
Profile and system supplier
Product focus: PVC window and door systems.
Before you shortlist: Identify the local fabricator; profile-system information alone does not certify a completed window.
Ultimate Windows
Window and door supplier
Product focus: uPVC double-glazed windows and doors.
Before you shortlist: Confirm service coverage, installation scope, opening operation and the actual glass package.
Back to Australia ↑ · Compare project routes
Manufacturer, System Supplier or Installer: Know the Difference
A strong brand name only tells you part of the story. Ask which business will be responsible for each step from specification to after-sales service.
| Business type | What you may be buying | Your key question |
|---|---|---|
| Finished-product manufacturer | A window, door or product assembly made to a defined specification. | Which series, materials, glass and hardware are included? |
| Profile / system supplier | A system used by another company to fabricate the finished unit. | Who fabricates, glazes, tests and warrants the completed product? |
| Hardware supplier | Locks, hinges, fittings or access-control components. | Is the exact component compatible with the door/window assembly? |
| Dealer or installer | Product selection, site measurement and installation, with scope varying by business. | Who is responsible for water sealing, adjustment and service visits? |
| Sourcing / project supplier | Coordination of a product or multi-material order. | Which design, inspection, packing, delivery and support services are included? |
How to Compare Window and Door Quotes
Send the same schedule to each shortlisted business. A price comparison becomes meaningful when the openings, materials, glazing, finish and responsibilities match.
01 · Define the openings
List each opening reference, quantity, width and height, wall detail and opening direction. Separate preliminary design dimensions from final verified manufacturing dimensions.
02 · Name the materials
Specify the frame or door construction, surface finish, color and hardware. “Aluminum window” or “wood door” alone leaves too many differences between quotations.
03 · Confirm the glass
Record the glass build-up, coatings, safety treatment and any acoustic requirement. Ask for performance information covering the proposed completed unit.
04 · Assign responsibility
Agree who checks dimensions, approves drawings, installs, seals and adjusts the units. Product supply, installation labor and warranty service are separate parts of the order.
| Compare | Ask for | Avoid this shortcut |
|---|---|---|
| Thermal and solar performance | Whole-product U-factor and SHGC, where applicable, for the proposed configuration. | Comparing glass-only figures with complete-window figures. |
| Wind, water and air performance | The report or approval matching the model, size, glass and installation method needed by the project. | Assuming that a logo or one test covers every product. |
| Door performance | The required fire, acoustic or security documentation for the complete assembly, where relevant. | Treating a door slab or lock certificate as proof for an entire installed opening. |
| Lead time | Written milestones for drawing approval, samples, production, dispatch and arrival. | A production estimate presented as an arrival date. |
| Delivered cost | Product, packing, transport, customs-related responsibilities, unloading and local installation scope. | Comparing a factory-only quote with a fully installed local price. |
| Warranty and spares | Covered parts, exclusions, claim route and responsibility for replacement labor and transport. | Comparing only the headline number of warranty years. |
For North American thermal comparisons, use the National Fenestration Rating Council as a starting point for understanding product ratings. Your project designer should confirm which performance documents are required for the actual site. No company’s inclusion in this guide establishes compliance for your order.
For product-level planning, explore our window options, door selection guide and installation support scope.
Local Supply or Importing from China?
Choose the route around the project rather than assuming that one country always offers the best value. Compare a complete delivered and installed scope before deciding.
| Buying route | Useful when | Resolve before ordering |
|---|---|---|
| Local manufacturer / dealer | You need site measurement, a local installation team or straightforward access to service. | Who makes the units, what installation includes, and which written warranty applies. |
| Direct import | The project has an organized schedule and someone responsible for technical approval and local installation. | Destination documentation, final dimensions, packaging, delivery responsibilities and a practical parts plan. |
| Coordinated material package | Doors and windows need to be selected alongside finishes, cabinetry or other building materials. | Separate product specifications and responsibilities for every category, plus shipment sequencing. |
Turn Your Shortlist into a Project Schedule
George Buildings can discuss doors and windows as part of your broader building-material requirements. Start with your project location, building type, floor plans and an opening schedule. Our team can then clarify the products and support to be included in a proposal.
Planning a villa, renovation or commercial project?
Share the opening schedule, preferred appearance and target timeline. Ask George about a coordinated material proposal and the details needed before quotation.
Discuss my project with GeorgeThis enquiry goes to George Buildings. It is not a request sent to the other companies in this directory.
Door and Window Manufacturer FAQs
Who are the best window manufacturers in the USA?
Andersen, Pella, Marvin, Milgard, JELD-WEN and MI are useful starting points in this directory. The best choice depends on the selected series, product availability, installation team and service coverage. Compare three to five companies against the same opening schedule instead of selecting on brand recognition alone.
Which companies should I compare for entry and interior doors?
Masonite and Steves & Sons provide door-focused routes, Therma-Tru and Plastpro focus on entry-door products, and Simpson is a reference for wood doors. First decide whether you need an interior slab, a prehung entry assembly or a door with a specific performance requirement.
Is this the Window + Door magazine Top 100 list?
No. This is George Buildings’ buyer-oriented directory of manufacturers, brands and specialist suppliers. It is not the magazine’s industry list or a ranking by sales. For that research, consult Window + Door’s own Top Manufacturers coverage and check the year and selection method.
Why does the directory include profile and hardware companies?
A profile brand, hardware brand and finished-window manufacturer can be different businesses. Companies such as VEKA, Aluplast and GEALAN provide profile systems, while Winkhaus supplies hardware and locking technology. These references help you identify the components in a quotation; they should not be compared as identical turnkey suppliers.
Should I choose aluminum, uPVC, wood or fiberglass windows?
Start with the appearance, opening size, maintenance expectations and performance needed for the building. Compare specific products using complete-unit data and installed cost. Frame material alone does not establish thermal performance, durability or suitability for your project.
Can I import doors and windows from China?
Importing can be an option when the specifications, required documents, transport responsibilities and local installation plan are agreed before ordering. Confirm the actual product and supplying entity. Do not assume that a domestic catalogue or a general certification covers the configuration required at your destination.
What should I send when asking for a quotation?
Provide the project country, building type, opening references and quantities, preliminary dimensions, opening directions, preferred materials, finish, glazing needs and target timeline. Identify who will verify the final dimensions and approve manufacturing drawings.
Does a manufacturer’s certificate cover every window or door?
No. Ask for documents applicable to the proposed model and configuration, including size, materials, glass, hardware and installation details where relevant. The project designer or responsible local professional should check that the evidence meets the project requirements.
How do I compare prices and warranties fairly?
Use the same product schedule and separate supply, packing, delivery, unloading and installation. For warranties, compare covered parts, exclusions, claims procedures and the cost of replacement labor and transport. A longer headline term is not a complete comparison.
Can George Buildings coordinate doors and windows with other materials?
George can discuss doors and windows alongside other building-material categories for your project. Share the drawings and product list so the team can clarify a coordinated proposal. Confirm the product specifications, delivery responsibilities and support scope in writing before ordering.
Industry-list reference: Window + Door — 2026 Top Manufacturers. This industry publication’s scope and methodology are separate from the George directory above.
We corrected business roles and replaced ambiguous or misplaced entries. The directory now contains 89 entries, rather than claiming a “Top 100” total. Historical ATIS Group is excluded from the active shortlist; its end-of-activities notice is a separate historical reference. Older Boral and BMC references have been updated to current Westlake Royal and Builders FirstSource routes.
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