What Affects the Price of Windows and Doors?
The 8 factors that determine the price of uPVC and aluminium windows, how to compare two quotes fairly and what may not be included.
Products
Glazing for windows, doors and facades
The right glass depends on location, orientation and use. Concrete values are given in the Declaration of Performance of the complete system (profile + glass).
What’s included
- Thermal double glazing (e.g. 4-16-4, 4-20-4) with argon
- Thermal triple glazing (e.g. 4-16-4-16-4)
- Laminated (triplex) and tempered safety glass
- Acoustic glass
- Low-E, Four Seasons and solar-control glass
- Mirrored double glazing for fixed panels; colours: clear, grey, bronze, blue
Best for
- Noisy streets: acoustic glass
- Balconies and doors: tempered or laminated glass
- Strong sun exposure: solar-control glass
- Cold rooms: triple glazing or Low-E
How to choose glazing
Choose glass by the problem you want to solve: thermal insulation (double or triple with argon and Low-E), noise (acoustic glass), safety (laminated or tempered) or strong sun (solar control). Ug and Uw values are read from the Declaration of Performance, and tempered glass cannot be cut after tempering, so dimensions must be exact before production.
Read double or triple glazing, laminated or tempered and how to reduce street noise.
Frequently asked questions
Double or triple glazing?
Triple insulates better but is heavier and costs more; double glazing with argon and Low-E is often enough for homes. See our detailed article.
What does Low-E mean?
A very thin, invisible coating on the glass that reflects part of the heat, reducing winter heat loss.
Do you replace damaged glass?
Yes. Replacing damaged glass is part of our after-sales service, with a prior quote.
Do you offer acoustic glass?
Yes, acoustic glass is part of our range, along with double, triple, Low-E, solar-control, laminated and tempered glass.
Related articles
Double or Triple Glazing? Argon, Low-E and How to Choose
How double and triple glazing are built, what argon and Low-E coatings do, when triple glazing is worth it and which other glass types exist.
Why Do Windows Sweat? Condensation and How to Fix It
Why condensation forms on windows, what you can do right away, when the window is the cause and what to look for when replacing them.
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