New builds and self-builds · Gwynedd
Triple glazing for new builds and self-builds in Caernarfon
We arrange surveys and fitting of new-build triple glazing in Caernarfon and the LL55 area, with a written, fixed quote after a free survey.
Triple glazing that gives your energy calculation headroom. 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 Caernarfon
Winter days in Caernarfon are short: about 7 h 32 min of daylight on 21 December, with the sun peaking near 13°. 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 Caernarfon
| 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
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.
- 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 Caernarfon
Is triple glazing mandatory for new builds?
No. Neither the current rules nor the Future Homes Standard make it compulsory. Triple glazing helps meet the overall energy target.
Can you price from drawings?
Yes. Send your drawings or window schedule and we will price a package, then confirm sizes on site before manufacture.
How long does it take to get new-build triple glazing fitted in Caernarfon?
After the survey, typical manufacture time is 6 to 12 weeks, and fitting is planned around your build programme.
Do you fit new-build triple glazing in Caernarfon?
Yes. We arrange surveys and fitting in Caernarfon and across Gwynedd. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Also near Caernarfon: Llangefni (13 km), Bangor, Gwynedd (13 km), Porthmadog (25 km) and Pwllheli (30 km).
Other products in Caernarfon
- 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 Caernarfon: 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.