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County Down · Northern Ireland

Fit-only rooflight installation in County Down

Fit-only rooflight installation across County Down follows one method wherever the roof is. First a survey or, for fit-only work, your photos and measurements. Then a written quote with the scope and price fixed. Then a fitting day planned around the weather. We list 4 towns in County Down on this site, each with its own page, but villages and addresses between them are covered in exactly the same way. Fitters travel to the property, so there is no need to be near any particular town.

Guide prices in County Down

Onto a ready upstand

£445 – £795including VAT at 20%

Customer-supplied unit up to about 1.5 m², fitted to a prepared kerb, sealed and trimmed

With a new upstand

£795 – £1,295including VAT at 20%

Insulated timber upstand built, membrane turned up and dressed, unit fitted and sealed

Large or heavy unit

£1,195 – £2,145including VAT at 20%

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.

Towns we list in County Down

Coverage in County Down works by postcode, not by distance from an office. Give us the full postcode and we will confirm whether it is standard cover, as it is for most of Northern Ireland, or one of the few remote and island areas handled by arrangement. Either way, you get a written quote before any work is booked, with travel included in the price.

What's included

  • Check of the delivered unit, glass, fixings pack and instructions before work starts
  • Roof membrane dressed up the kerb and finished under the drip edge
  • Unit bedded on the sealant or tape the maker specifies, then screw-fixed
  • Upstand height above the roof — We measure how far the upstand stands above the finished roof surface, including any ballast or walkway.
  • Delivery damage and missing parts — We ask you to open the delivery and check it as soon as it arrives, not on fitting day.

Rules that apply in Northern Ireland

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.

Common questions in County Down

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.

Do you cover County Down?

Yes. Fitters travel to addresses in County Down and the surrounding districts, including BT postcodes. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

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.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Fitting in County Down

Send photos and rough sizes, or ask for a survey visit for install work. You get one fixed written price before anything starts.

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