New builds and self-builds · South Glamorgan
Triple glazing for new builds and self-builds in Cardiff
Looking at new-build triple glazing for a home in Cardiff? We survey, quote and fit across South Glamorgan, and the CF10 postcode district is part of that.
U-values, g-values and installation details for your assessor. Triple glazing is not required by Building Regulations for new homes, but it helps a new dwelling meet its overall energy target.
Winter light and glass choice in Cardiff
Winter days in Cardiff are short: about 7 h 50 min of daylight on 21 December, with the sun peaking near 15°. That low angle reaches deep into south-facing rooms, so we match the glass to each elevation rather than using one spec for the whole house.
Guide prices in Cardiff
| Guide | Supply and fit, zero-rated (new home) |
|---|---|
| uPVC package about 22 m2 of windows and doors | £11,195 – £13,895 |
| Aluminium package about 22 m2 of windows and doors | £18,895 – £23,595 |
| Alu-clad timber package about 22 m2 of windows and doors | £24,795 – £30,995 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for new builds and self-builds in Wales
For a new home in Wales, windows and doors are approved through the build’s own building control application: the limiting value is 1.4 W/m²K, stricter than England. The house itself needs planning permission.
VAT: supply and fitting by a VAT-registered contractor in the construction of a new home is normally zero-rated, so new-build guide prices are shown without VAT; supply-only purchases carry 20% VAT, which self-builders can usually reclaim through HMRC’s DIY housebuilders scheme.
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.
- Guide prices published, not hidden
- No pressure: the quote is yours to keep
- Frames, glass and fitting in one contract
- Advice on planning and consents before you order
Questions from Cardiff
How much does a self-build window package cost?
For about 22 m² of windows and doors, our guide starts at £11,195 in uPVC and £18,895 in aluminium, fitted and zero-rated (new home).
Do you supply performance data for SAP?
Yes. Your energy assessor gets the U-values, g-values and frame data for the systems quoted.
Do you fit new-build triple glazing in Cardiff?
Yes. We arrange surveys and fitting in Cardiff and across South Glamorgan. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
How long does it take to get new-build triple glazing fitted in Cardiff?
After the survey, typical manufacture time is 6 to 12 weeks, and fitting is planned around your build programme.
Nearby
Also near Cardiff: Penarth (5 km), Caerphilly (11 km), Barry (12 km) and Risca (15 km).
Other products in Cardiff
- 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
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
New builds and self-builds in Cardiff: 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 Wales.