Whole-house replacement · Greater London
Whole-house triple glazing in Northolt
If you live in Northolt (UB5) and want whole-house triple glazing, start with a free survey: every opening measured, then a written quote that fixes the price.

Every window and door in one planned job. Whole-house triple glazing means replacing every window, and usually the external doors, in one job.
Winter light and glass choice in Northolt
In Northolt, midday sun in late December sits around 15° high, with roughly 7 h 49 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 Northolt
| Guide | Supply and fit, inc VAT |
|---|---|
| 2-bed terrace 5 windows + front door | £5,695 – £7,195 |
| 3-bed semi 9 windows + front door | £9,395 – £11,795 |
| 4-bed detached 12 windows + front door + French doors | £13,595 – £16,995 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for whole-house replacement in England
In England, replacement windows must meet 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.
- 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 Northolt
Will I need scaffolding?
Most two-storey homes can be done from ladders or towers. Where scaffolding is needed, it is quoted separately.
How long does a whole-house installation take?
Usually 1 to 2 days for a small house and 2 to 4 days for a larger one.
Do I need permission for whole-house triple glazing in Northolt?
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.
How long does it take to get whole-house triple glazing fitted in Northolt?
After the survey, typical manufacture time is 4 to 8 weeks, and most homes are fitted in 1 to 4 days.
Nearby
We also cover nearby Greenford (2 km), Harrow (4 km), Southall (4 km) and Ruislip (5 km).
Other products in Northolt
- uPVC windows
- Aluminium windows
- Timber windows
- Alu-clad 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
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Whole-house replacement in Northolt: 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.
