Period homes and conservation areas · County Antrim
Triple glazing for period homes and conservation areas in Antrim
From the first measure to the handover pack, we handle period-style triple glazing for homes in Antrim and the rest of County Antrim.

Heritage-style frames and plain advice on consents. In a conservation area, replacing windows on a house is often permitted development if the new windows look similar to the old ones, but councils can remove those rights with an Article 4 direction.
Winter light and glass choice in Antrim
By midsummer Antrim has about 17 h 19 min of daylight, but in December only around 7 h 13 min, with the noon sun at about 12°. Triple glazing keeps more heat in during those long, dark months; big south and west windows may suit solar-control glass for summer.
Guide prices in Antrim
| Guide | Supply and fit, inc VAT |
|---|---|
| Flush casement, woodgrain uPVC medium window | £1,295 – £1,595 |
| Timber flush casement medium window | £2,295 – £2,895 |
| Timber sliding sash medium sash window | £3,395 – £4,195 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for period homes and conservation areas 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.
- 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 Antrim
Can I put triple glazing in a listed building?
Usually not as a replacement. Listed building consent is needed and is often refused for original windows. Secondary glazing is the common alternative.
Can I have triple glazing in a conservation area?
Often yes, if the new windows match the look of the old ones and there is no Article 4 direction. Check with your council first.
Do I need permission for period-style triple glazing in Antrim?
In Northern Ireland, check with your council planning office before changing the style, material or size of windows, and always for listed buildings and flats. Check whether your street is in a conservation area or covered by an Article 4 direction before changing the style.
Do you fit period-style triple glazing in Antrim?
Yes. We arrange surveys and fitting in Antrim and across County Antrim. Send your postcode and the windows or doors you want replaced, and we will book a free survey.
Nearby
Also near Antrim: Ballymena (17 km), Newtownabbey (20 km), Belfast (23 km) and Lisburn (24 km).
Other products in Antrim
- 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
- New builds and self-builds
- Flats and apartments
- Passivhaus and EnerPHit
Period homes and conservation areas in Antrim: 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.
