Period homes and conservation areas · Greater London
Triple glazing for period homes and conservation areas in Wallington
We arrange surveys and fitting of period-style triple glazing in Wallington and the SM6 area, with a written, fixed quote after a free survey.

Heritage-style frames and plain advice on consents. In a conservation area, replacing windows on a house is often permitted development if the new windows look similar to the old ones, but councils can remove those rights with an Article 4 direction.
Winter light and glass choice in Wallington
On the shortest day, Wallington gets about 7 h 51 min of daylight and the midday sun reaches only about 15° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Wallington
| Guide | Supply and fit, inc VAT |
|---|---|
| Flush casement, woodgrain uPVC medium window | £1,295 – £1,595 |
| Timber flush casement medium window | £2,295 – £2,895 |
| Timber sliding sash medium sash window | £3,395 – £4,195 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for period homes and conservation areas 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 Wallington
Will heritage-style frames look chunky with triple glass?
They can if the sections are too slim for a full triple unit. We will show you the frame sizes and, if needed, offer a slim high-performance unit instead.
Do you help with planning applications?
We provide drawings, specifications and samples you can use in an application. The application is made by you or your agent.
Do you fit period-style triple glazing in Wallington?
Yes. We arrange surveys and fitting in Wallington and across Greater London. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Do I need permission for period-style triple glazing in Wallington?
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 Carshalton (1 km), Sutton (4 km), South Croydon (4 km) and Purley (4 km).
Other products in Wallington
- 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
- Whole-house replacement
- New builds and self-builds
- Flats and apartments
- Passivhaus and EnerPHit
Period homes and conservation areas in Wallington: 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.
