Whole-house replacement · County Antrim
Whole-house triple glazing in Lisburn
Homes in Lisburn can have whole-house triple glazing supplied and fitted, with surveys arranged across County Antrim including BT27.

Every window and door in one planned job. Whole-house triple glazing means replacing every window, and usually the external doors, in one job.
Winter light and glass choice in Lisburn
On the shortest day, Lisburn gets about 7 h 16 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 Lisburn
| Guide | Supply and fit, inc VAT |
|---|---|
| 2-bed terrace 5 windows + front door | £5,695 – £7,195 |
| 3-bed semi 9 windows + front door | £9,395 – £11,795 |
| 4-bed detached 12 windows + front door + French doors | £13,595 – £16,995 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for whole-house replacement in Northern Ireland
In Northern Ireland, replacement windows must meet 1.6 W/m²K, or a Window Energy Rating of band C or better. Replacing windows or external doors does not need full plans or a building notice, but the work must still comply; enlarging an opening or other structural change needs building control approval.
Before ordering: Check with your council planning office before changing the style, material or size of windows or doors, and always for listed buildings, conservation areas and flats.
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 Lisburn
How much does it cost to triple glaze a 3-bed semi?
Our guide is £9,395 to £11,795 for 9 uPVC windows and a front door, fitted and inc VAT. UK quotes typically range from about £6,500 to £11,000 for windows only.
Do I need to move out?
No. We work room by room and make each opening weathertight the same day.
How long does it take to get whole-house triple glazing fitted in Lisburn?
After the survey, typical manufacture time is 4 to 8 weeks, and most homes are fitted in 1 to 4 days.
Do you fit whole-house triple glazing in Lisburn?
Yes. We arrange surveys and fitting in Lisburn and across County Antrim. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
We also cover nearby Belfast (11 km), Castlereagh (11 km), Newtownabbey (17 km) and Holywood (19 km).
Other products in Lisburn
- 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
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Whole-house replacement in Lisburn: 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.
