Sliding patio doors · County Antrim
Triple glazed sliding patio doors in Lisburn
We arrange surveys and fitting of triple glazed sliding patio doors in Lisburn and the BT27 area, with a written, fixed quote after a free survey.
More glass, less cold: sliders that stay comfortable in winter. A sliding patio door has large glazed panels that slide past each other on a track, so it opens without swinging into the room.
Winter light and glass choice in Lisburn
Winter days in Lisburn are short: about 7 h 16 min of daylight on 21 December, with the sun peaking near 12°. 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 Lisburn
| Guide | Supply and fit, inc VAT |
|---|---|
| uPVC 2-pane slider about 1.8 m wide | £1,895 – £2,295 |
| uPVC 2-pane slider, wide about 2.4 m wide | £2,295 – £2,895 |
| Aluminium slider about 3 m wide | £3,295 – £4,195 |
Guide prices. Your written quote after the free survey fixes the price for the specification shown.
Rules for sliding patio doors in Northern Ireland
In Northern Ireland, replacement external doors must meet 1.8 W/m²K. Replacing 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 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
Are triple glazed sliding doors hard to open?
Not with correctly rated rollers. Lift-and-slide gear makes even very large panels easy to move.
Can I have a level threshold?
Low thresholds are available; they need a suitable drainage detail outside, which we check on survey.
Do I need permission for triple glazed sliding patio doors in Lisburn?
In Northern Ireland, check with your council planning office before changing the style, material or size of a door, 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 triple glazed sliding patio doors 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
Nearby towns on our list include 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
- Bifold doors
- Glass-only replacement
- Acoustic triple glazing
- Security glazing
- Whole-house replacement
- New builds and self-builds
- Period homes and conservation areas
- Flats and apartments
- Passivhaus and EnerPHit
Sliding patio doors 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.