Areas · Wales
Triple glazing in South Glamorgan
Triple glazed windows and doors for homes across South Glamorgan, including Cardiff, Barry, Penarth. Free survey, published guide prices and a written quote fixed for the specification.
Homes across South Glamorgan can get every window and door triple glazed, or just the rooms that need it most, with a written quote fixed for the specification. Building Regulations sign-off by a competent person scheme installer or building control, as the law requires in Wales.
Products in South Glamorgan
Windows by frame material
Window styles
- Casement windows
- Flush casement windows
- Tilt and turn windows
- Sash windows
- Bay and bow windows
- Fixed and picture windows
Doors
Glass and upgrades
Projects
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Winter light across South Glamorgan
Our 4 local town pages in South Glamorgan run from Barry in the south to Cardiff in the north. On the shortest day, daylight ranges from about 7 h 50 min in Cardiff to 7 h 50 min in Barry, and the midday sun reaches between 15° and 15°.
In Cardiff, the shortest day brings around 7 h 50 min of daylight, with the midday sun near 15°. Over a heating season of several months, lower heat loss through the glass adds up.
Towns in South Glamorgan
Rules in Wales
The rules for replacement windows in Wales are set by Approved Document L for Wales (2022 edition, with 2024 amendments): 1.4 W/m²K, or a Window Energy Rating of band B or better. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.
Planning: Householder permitted development rules do not cover flats, and councils can remove rights with Article 4 directions. Listed buildings need listed building consent. Check with your council before changing the style or material.
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.
- 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
Do you fit triple glazing across South Glamorgan?
Yes. We arrange surveys and fitting across South Glamorgan.
How much does triple glazing cost in South Glamorgan?
Our guide prices are the same UK-wide: triple glazed uPVC windows from £695 each, fitted and inc VAT. Your written quote fixes the price after the survey.
What are the rules in Wales?
Replacement windows must meet 1.4 W/m²K, or a Window Energy Rating of band B or better. As in England, replacement windows are a controlled fitting: a competent person scheme installer self-certifies the work, or building control approves it.
Do I need planning permission in South Glamorgan?
In Wales, householder rules do not cover flats, councils can use Article 4 directions, and listed buildings need consent.
Nearby areas in Wales
Triple glazing across South Glamorgan
Written quote fixed for the specification, after a free survey, and Building Regulations sign-off where the law requires it.