Alu-clad timber windows · Norfolk
Alu-clad timber triple glazed windows in Dereham
If you live in Dereham (NR19) and want alu-clad timber triple glazed windows, start with a free survey: every opening measured, then a written quote that fixes the price.

Warm timber in the room and a weatherproof shell to the weather. Alu-clad (aluminium-clad) timber windows have a structural timber frame inside and a powder-coated aluminium cladding outside, glazed with a three-pane unit.
Winter light and glass choice in Dereham
By midsummer Dereham has about 16 h 52 min of daylight, but in December only around 7 h 37 min, with the noon sun at about 14°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.
Guide prices in Dereham
| Guide | Supply and fit, inc VAT |
|---|---|
| Small window about 600 x 1000 mm (bathroom, landing) | £1,395 – £1,795 |
| Medium window about 1200 x 1200 mm (bedroom) | £1,895 – £2,395 |
| Large window about 1800 x 1200 mm (lounge) | £2,995 – £3,695 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for alu-clad timber windows in England
The rules for replacement windows in England are set by Approved Document L (2021 edition, with 2023 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. Replacement windows are a controlled fitting. A competent person scheme installer (such as FENSA or Certass) self-certifies the work and notifies the council within 30 days; otherwise a building control body approves it.
Before ordering: Replacing windows on a house is normally permitted development if the new ones look similar. New upper-floor windows in a side wall must be obscure glazed and fixed, or open only above 1.7 m. Flats and maisonettes have no householder permitted development rights, so a change that alters their appearance needs planning permission. An Article 4 direction in a conservation area may mean permission is needed, and listed buildings need listed building consent.
How it works
You will know exactly what you are buying: the quote states the unit build-up, frame, finish, fitting work and how Building Regulations compliance is handled. On fitting day each opening is replaced and closed up before the team moves on.
- Free survey and a written quote fixed for the specification
- Glass build-up and whole-window U-value on every quote
- Written handover pack at the end of the job
- Guarantees on frames, units and fitting in writing
Questions from Dereham
Is alu-clad timber worth the extra cost?
It is for many self-builders and people planning to stay for decades, because the outside needs almost no upkeep and the timber inside looks warm. For a quick replacement on a typical semi, uPVC or aluminium give better value.
How long do alu-clad windows take to make?
Typically 8 to 12 weeks from survey, sometimes longer for big projects.
Do I need permission for alu-clad timber triple glazed windows in Dereham?
In England, like-for-like replacements on a house are normally permitted development; flats need permission if the change alters their appearance, Article 4 areas may need permission, and listed buildings need listed building consent. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
Do you fit alu-clad timber triple glazed windows in Dereham?
Yes. We arrange surveys and fitting in Dereham and across Norfolk. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
We also cover nearby Norwich (25 km), Thetford (32 km), North Walsham (34 km) and Cromer (37 km).
Other products in Dereham
- uPVC windows
- Aluminium windows
- Timber windows
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
- Composite front doors
- French doors
- Sliding patio doors
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Alu-clad timber windows in Dereham: book your free survey
Written quote fixed for the specification, after a free survey. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in England.
