Alu-clad timber windows · County Durham
Alu-clad timber triple glazed windows in Darlington
From the first measure to the handover pack, we handle alu-clad timber triple glazed windows for homes in Darlington and the rest of County Durham.
Timber inside, aluminium outside, three panes of glass between. 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 Darlington
In Darlington, midday sun in late December sits around 12° high, with roughly 7 h 16 min of daylight. For windows facing north or shaded by neighbours, cutting heat loss matters more than solar gain; on open south-facing glass, ask about a higher solar-gain unit.
Guide prices in Darlington
| 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
The surveyor measures every opening, checks ventilation, escape windows and safety-glass zones, and talks through styles. Your written quote lists each item with its glass build-up and U-value, and the price is fixed for that specification.
- Guide prices published, not hidden
- No pressure: the quote is yours to keep
- Frames, glass and fitting in one contract
- Advice on planning and consents before you order
Questions from Darlington
How long do alu-clad windows take to make?
Typically 8 to 12 weeks from survey, sometimes longer for big projects.
Do alu-clad windows suit Passivhaus builds?
Many alu-clad systems are designed for low-energy homes. If you need Passive House Institute certified components, ask and we will price systems that hold that certification.
Do you fit alu-clad timber triple glazed windows in Darlington?
Yes. We arrange surveys and fitting in Darlington and across County Durham. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
How long does it take to get alu-clad timber triple glazed windows fitted in Darlington?
After the survey, typical manufacture time is 8 to 12 weeks, and most homes are fitted in 1 to 4 days.
Nearby
Nearby towns on our list include Newton Aycliffe (11 km), Stockton-on-Tees (16 km), Thornaby-on-Tees (16 km) and Bishop Auckland (17 km).
Other products in Darlington
- 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 Darlington: 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.