Built for the way Europe lives.
Precision-engineered aluminium, timber and uPVC systems that bring daylight, comfort and lasting energy performance to every climate.
Performance you can feel, details you can trust.
Every system balances thermal comfort, acoustic calm, security and elegant proportions.
Glazing, seals and frames configured for the project location.
Technical review, production, delivery and aftercare coordinated together.
Durable materials, repairable hardware and energy-conscious design.
Manufacturing expertise, built for global projects.
Established in 2001, Forge Windows integrates research, manufacturing, project support and service for high-performance window and door systems.
Across three production bases spanning more than 200,000 m², our teams combine experienced fabrication, systematic testing and strict quality control to support residential and commercial projects in over 100 countries.

Factory & Showroom
Explore our manufacturing capability and product experience spaces.
Our Qualification & Honors
Trusted from first sketch to final handover.
From shop drawings to handover, the team communicated clearly and solved details before they reached site.Thomas Weber
Construction manager · Germany
We needed coastal durability without heavy frames. The result keeps the sea view open and performs exactly as specified.Sofia Almeida
Project director · Portugal
Latest From Forge Windows
How to Read a Window Uw Value
Understand whole-window Uw, the difference between Ug and Uf, and the evidence to request before comparing window options.
Read article: How to Read a Window Uw Value
Triple Glazing: Where It Makes Sense
Decide when triple glazing is useful by weighing climate, orientation, comfort, glass weight, solar gain, frame capacity and budget.
Read article: Triple Glazing: Where It Makes Sense
Planning Large Sliding Doors
Plan large sliding doors around structure, drainage, glass handling, movement, weather seals and installation tolerances before ordering.
Read article: Planning Large Sliding Doors
Choosing Window Frames for Coastal Climates
Specify coastal windows around exposure, finishes, drainage, hardware, maintenance and documented test conditions rather than a generic “marine grade” label.
Read article: Choosing Window Frames for Coastal Climates
Acoustic Glazing for Urban Homes
Improve acoustic comfort by coordinating glazing, frame airtightness, ventilation, flanking paths and the actual outdoor noise source.
Read article: Acoustic Glazing for Urban Homes
What Architects Need in a Window Schedule
Build a coordinated window schedule with opening IDs, dimensions, performance, glass safety, finishes, hardware, interfaces and document references.
Read article: What Architects Need in a Window ScheduleHow should windows and doors be specified for European projects?
European window and door specification is a whole-opening process: climate, orientation, declared product performance, glazing, hardware, installation interfaces and destination-country documentation should be coordinated together rather than selected as isolated components.
| Project context | Typical exposure | Specification priorities |
|---|---|---|
| Nordic and cold climates | Long heating seasons and low external temperatures | Whole-window Uw, airtightness, thermal bridges and suitable double or triple glazing |
| Atlantic and exposed regions | Wind-driven rain, repeated wetting and strong weather fronts | Water tightness, wind resistance, drainage, seals and installation interfaces |
| Mediterranean climates | High solar exposure and summer overheating risk | Solar-control glazing, shading coordination, ventilation strategy and durable finishes |
| Coastal locations | Salt-laden air, wind and moisture | Finish selection, corrosion-resistant hardware, maintenance access and weather seals |
What information is needed to specify windows for a European project?
Start with opening dimensions, opening type, whole-window Uw target, wind and water exposure, acoustic goals, glazing safety, finish, hardware, installation interface and the documentation required in the destination country.
Should every European project use triple glazing?
No. Triple glazing can improve thermal and acoustic performance, but glass weight, solar gain, frame capacity, climate, orientation, budget and the project energy model should be reviewed together before selecting the glazing build-up.
What does CE marking communicate for construction products?
For products within the applicable Construction Products Regulation route, CE marking links the product to declared performance assessed using a harmonised technical specification or European Technical Assessment. Project designers must still specify performance appropriate to the intended use.
European regulatory context: Energy Performance of Buildings Directive · Construction Products Regulation. Final project requirements remain subject to the applicable national rules, intended use and project specification.
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