Which material, and what the frame gives you
Two options, both starting from the same pine frame.
- Pine is painted or glazed at our factory and can be repainted in any colour later.
- Alu-clad pine carries a 1 mm aluminium skin on the outside, so the timber never meets the weather and you wash the frame rather than repaint it. Warranty is 10 years on pine and 12 on alu-clad.
Three details worth knowing before you configure.
- A warm edge spacer in black is included as standard, which is the detail that keeps the edge of the glass from becoming the cold spot.
- An aluminium drip-rail on the outside carries water clear of the frame instead of letting it sit.
- And a frame groove, 10 mm deep, can be machined into the inside face on any combination of sides, which makes fitting internal sills and casing trims considerably easier for whoever installs it.
Looking for uPVC, meranti or acoustic glass rated in decibels? Those sit on a different platform, in our fixed frame windows range.
Safety glass and Building Regulations
Where the glass sits decides whether it has to be safety glass, and Approved Document K sets the rule.
Standard glass is allowed only where the bottom edge of the glazing is more than 800 mm above the finished floor and not within 300 mm of a door opening.
Toughened or laminated glass is required where the glazing sits below 800 mm, where it is in a door, or where it is within 300 mm of a door edge and below 1500 mm. A suitable barrier in front of the glass is the alternative.
Both are options on every window on this page, so you can meet the rule pane by pane. Low fixed windows and anything beside a door are the two to check.
How much do fixed windows cost?
Every window is made to measure, so there is no list price. Yours is calculated from the size you enter, the layout, pine or alu-clad, the glazing, the glass type and the finish, and the configurator prices it as you build, including VAT.
Two things move the price more than people expect. The number of panes matters more than the overall size, because every transom, mullion and glazing bar is a separate operation in the factory. And specialist glass, whether obscure, solar control or acoustic, is a bigger step than any frame option.
A fixed window of a given size costs less than an opening window of the same size, because there is no sash, no hinge and no handle in it.