Period homes and conservation areas · Hampshire
Triple glazing for period homes and conservation areas in Southampton
Looking at period-style triple glazing for a home in Southampton? We survey, quote and fit across Hampshire, and the SO15 postcode district is part of that.

Warmth for period homes without losing their character. 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 Southampton
By midsummer Southampton has about 16 h 32 min of daylight, but in December only around 7 h 56 min, with the noon sun at about 16°. 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 Southampton
| 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
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.
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
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 Southampton
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 I need permission for period-style triple glazing in Southampton?
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 period-style triple glazing in Southampton?
Yes. We arrange surveys and fitting in Southampton and across Hampshire. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Also near Southampton: Hythe (5 km), Totton (6 km), Eastleigh (8 km) and Fareham (17 km).
Other products in Southampton
- 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 Southampton: 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.
