New builds and self-builds · County Antrim
Triple glazing for new builds and self-builds in Belfast
We arrange surveys and fitting of new-build triple glazing in Belfast and the BT1 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 Belfast
On the shortest day, Belfast gets about 7 h 15 min of daylight and the midday sun reaches only about 12° above the horizon. Low winter sun means north-facing rooms here gain little solar heat, which is where triple glazing’s lower heat loss helps most.
Guide prices in Belfast
| 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 Northern Ireland
For a new home in Northern Ireland, windows and doors are approved through the build’s full plans application to council Building Control: they must average 1.40 W/m²K, with no single unit worse than 3.00. 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.
- 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 Belfast
Do you supply performance data for SAP?
Yes. Your energy assessor gets the U-values, g-values and frame data for the systems quoted.
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.
Do you fit new-build triple glazing in Belfast?
Yes. We arrange surveys and fitting in Belfast and across County Antrim. 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 Belfast?
After the survey, typical manufacture time is 6 to 12 weeks, and fitting is planned around your build programme.
Nearby
Nearby towns on our list include Castlereagh (4 km), Newtownabbey (7 km), Holywood (8 km) and Lisburn (11 km).
Other products in Belfast
- 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 Belfast: book your free survey
Written quote fixed for the specification, after a free survey. No building notice is needed for a straight replacement in Northern Ireland; we fit to the regulations and give you a written handover pack.
