Lisburn guide prices
Onto a ready upstand
Customer-supplied unit up to about 1.5 m², fitted to a prepared kerb, sealed and trimmed
With a new upstand
Insulated timber upstand built, membrane turned up and dressed, unit fitted and sealed
Large or heavy unit
Extra hands or lifting gear, larger openings, fixed or opening units
Guide ranges for labour only — you supply the rooflight. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.
Where our fitters travel
Distance is rarely the deciding factor. A roof in Belfast, 7 miles from Lisburn, gets the same survey, the same written quote and the same fitting process as one in BT27, BT28 and BT17. What changes the price is the job itself: size of unit, roof type, access and lifting. Castlereagh, around 7 miles out, is treated the same way.
Buying your own, or letting us supply
If you have bought a rooflight yourself, we check four things before fitting. First, the delivery: open it, look for chips, cracks and bent frames, and report any damage to the seller straight away. Second, the size, measured against the builder's opening rather than the external frame. Third, the upstand height above the finished roof. Fourth, the maker's instructions, which set the fixings and sealing. Product warranty claims go to the seller and maker; our guarantee is for how it was fitted.
On the day, we cover
- Check of the delivered unit, glass, fixings pack and instructions before work starts
- Internal reveal trimmed or lined, with the protective film removed at the end
- Opening tested where relevant, packaging taken away and paperwork handed back
- Warranty conditions on your unit — We read the warranty terms that came with your rooflight before we fit it.
- Upstand height above the roof — We measure how far the upstand stands above the finished roof surface, including any ballast or walkway.
Fitting your rooflight, step by step
Arrive and agree the plan. Sheet the floor and furniture. Set up the ladder, tower or scaffold. Check the opening, the upstand or flashing, and the unit against the paperwork. Fix and pack a rooflight level. Seal it into the roof. Line the reveal or fit the ceiling trim. Clean the glass, clear the waste, and talk you through it. That is the shape of most fitting days, and for this type of job it usually takes half a day to a day.
Regulations for Lisburn properties
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.
Help us quote accurately
Start with your phone. Take a picture of the roof where the unit goes or already sits, then one from inside looking up. Measure what you can, even roughly. Tell us what the roof is covered with and how a fitter would reach it: ladder, garden access or scaffold. Bought it already? Send the link or spec. Add your full postcode, for example in BT27, and we can price it.
Common questions in Lisburn
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.
What is included in the price?
The written quote lists it line by line. Typically that covers fitting labour, fixings, sealants, membrane or flashing materials, any upstand work, internal finishing if agreed, and taking away the waste. For supply and fit, the unit itself is included too. Scaffold, lifting gear and any third-party fees, where needed, are shown separately so you can see what each part of the job costs.
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.
Get in touch with the details of your Lisburn property and we will explain what the job involves and what it costs.

