Period homes and conservation areas · England
Triple glazing for period homes and conservation areas in Gloucestershire
Period-style triple glazing across Gloucestershire: free survey, written fixed quote, and fitting by installation teams working for us. Towns we cover include Gloucester, Cheltenham and Cirencester.

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.
Guide prices across Gloucestershire
Flush casement, woodgrain uPVC
medium window
£1,295 – £1,595inc VAT · £1,080 – £1,330 ex VAT
- Sash sits flush in the frame
- Woodgrain or heritage colour
- Fitted and made good
Timber flush casement
medium window
£2,295 – £2,895inc VAT · £1,910 – £2,410 ex VAT
- Engineered timber, factory painted
- Slim triple unit where the design allows
- Fitted and made good
Timber sliding sash
medium sash window
£3,395 – £4,195inc VAT · £2,830 – £3,495 ex VAT
- Box-sash look, balanced sashes
- Horns and bars to match
- Fitted and made good
Guide prices, supply and fit. The written quote after your survey fixes the price for the specification shown; anything extra is agreed with you first.
Towns in Gloucestershire
Rules 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
After the free survey you get a written quote naming the frame system, the glass build-up and the whole-window U-value for every item. Windows are made to order, then fitted, sealed and made good, one opening at a time.
- Every opening measured, including escape and vent needs
- Frames rated for the weight of triple glass
- Old windows removed and taken away
- Each opening closed up the same day
Questions
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.
Can I put triple glazing in a listed building?
Usually not as a replacement. Listed building consent is needed and is often refused for original windows. Secondary glazing is the common alternative.
Can I have triple glazing in a conservation area?
Often yes, if the new windows match the look of the old ones and there is no Article 4 direction. Check with your council first.
Do you cover all of Gloucestershire?
We arrange surveys and fitting across Gloucestershire.
Do I need permission for period-style triple glazing in England?
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.
Period homes and conservation areas in nearby areas of England
- Bristol
- Wiltshire
- Herefordshire
- Worcestershire
- Somerset
- Oxfordshire
- Warwickshire
- West Midlands
- Berkshire
- Hampshire
Other products in Gloucestershire
- 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 across Gloucestershire
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.
