Alu-clad timber windows · Northamptonshire
Alu-clad timber triple glazed windows in Northampton
If you live in Northampton (NN1) and want alu-clad timber triple glazed windows, start with a free survey: every opening measured, then a written quote that fixes the price.
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 Northampton
In Northampton, midday sun in late December sits around 14° high, with roughly 7 h 42 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 Northampton
| 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.
Planning: 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
We start with a survey, not a sales pitch: measurements, the structure above any bays, trickle-vent needs and escape windows. The quote that follows fixes the price, and anything unexpected on the day is agreed with you first.
- 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 Northampton
Can I choose different colours inside and out?
Yes. The aluminium can be any RAL colour and the timber inside can be natural, stained or painted.
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.
Do you fit alu-clad timber triple glazed windows in Northampton?
Yes. We arrange surveys and fitting in Northampton and across Northamptonshire. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Do I need permission for alu-clad timber triple glazed windows in Northampton?
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.
Nearby
We also cover nearby Wellingborough (14 km), Daventry (19 km), Rushden (20 km) and Kettering (20 km).
Other products in Northampton
- 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 Northampton: 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.