Fitting jobs in Lisburn
Fitting & replacement
- Fit-only rooflight installation · from £445
- Rooflight replacement · from £1,095
- New rooflight in an existing roof · from £2,295
- Rooflight upstands & kerbs · from £245
- Rooflight glass replacement · from £445
- Rooflight leak repairs · from £145
Flat roof rooflights
- Flat rooflight installation · from £995
- Frameless rooflight installation · from £1,445
- Electric opening rooflight installation · from £2,645
- Walk-on rooflight installation · from £3,345
- Sliding rooflight installation · from £7,795
- Roof access hatch installation · from £1,795
- Roof lantern installation · from £3,095
Pitched roofs & lofts
- Pitched roof window installation · from £845
- Loft conversion roof windows · from £1,795
- Conservation rooflight installation · from £1,145
- Sun tunnel installation · from £595
Commercial & trade
- Commercial rooflight installation · from £1,095
- Dome rooflight replacement · from £395
- Smoke vent rooflight installation · from £3,595
- Trade rooflight fitting · from £295 + VAT
The details a specialist gets right
Product warranties on rooflights usually depend on the unit being fitted to the maker's instructions. Those instructions cover upstand height, fixing centres, sealants, and how the roof covering is dressed in. Following them line by line takes familiarity with how different units go together. A specialist fitter reads the paperwork, checks the delivery and measures the opening before starting, then fits to the book. If something on site does not match, they flag it rather than improvising. That protects both the roof and the warranty.
Is your Lisburn address covered?
Need a rooflight fitted in Lisburn or close by? Districts BT27, BT28 and BT17 are covered, as are Belfast, Castlereagh and Newtownabbey. If you manage several properties across these places, we can quote them together and plan the fitting days so the route makes sense. Larger units or awkward access at any of them are planned for at quote stage, so the day itself runs to plan.
Planning and building control
For a home in Northern Ireland, check planning first: rooflights are excluded from permitted development in conservation areas and within the curtilage of listed buildings, and elsewhere must keep 0.5 m clear of the ridge, eaves and verges. Then building control: a new opening alters the roof structure, so expect a building control application and confirm with your council, and the glazing must achieve WER Band C or 1.6 W/m²K. We check both for your address before quoting.
Questions about rooflight fitting in Lisburn
What if my roof opening is the wrong size for the rooflight?
We find out before the fitting day, not on it. If the opening is slightly out, it can usually be adjusted by trimming or by packing out the upstand. If it is a long way off, the choice is between altering the opening and changing the unit. Bear in mind that rooflights are often sold by builder's opening size rather than external size, so check which one your measurement refers to.
How long does fitting take?
Fitting a rooflight into an existing, correctly sized opening is often a day's work. New openings take longer, because joists or rafters need trimming, an upstand or flashing has to be built or fitted, and the inside needs finishing. Large units that need lifting gear, and days lost to rain, can stretch things further. Your written quote gives a realistic estimate for your roof.
How does payment work?
Payment terms are set out on your written quote before you accept it. Depending on the job, that may mean a deposit, stage payments for larger work, or payment on completion. The contract is with S&K Property Investments and Improvement Ltd, part of the S&K Group. Nothing is added without your agreement: if something unexpected comes up, we discuss it and agree any change before carrying on.
Can you remove and dispose of the old rooflight?
Yes. Taking out the old unit is part of any replacement job, and it leaves with the rest of the waste unless you ask to keep it. Old domes, glass and frames go through proper waste routes. If removal turns up a rotten kerb or damaged decking, we show you what we have found and agree the repair with you before going any further.

