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RooflightInstallers.co.uk
Coleraine · BT52 · County Londonderry

Roof lantern installation in Coleraine

Rooflight work is weather work. Membranes, primers and sealants all want a dry surface, so a fitting day in Coleraine is planned around the forecast rather than pinned to a date regardless of rain. The opening is kept covered whenever it is exposed, and a roof is not left open overnight without a proper temporary seal. That approach applies to every roof lantern we install, from a new opening to a straight swap or a fit-only job. We cover Coleraine, the BT52 district and the rest of County Londonderry.

Guide price from £3,095 · Supply & fit

Coleraine guide prices

About 1 × 2 m

£3,095 – £4,545including VAT at 20%

Aluminium lantern, double glazed, fitted and glazed on a ready upstand

About 1.5 × 3 m

£4,545 – £7,195including VAT at 20%

Mid-size lantern, solar-control glass options

2 × 4 m and over

£7,195 – £11,395including VAT at 20%

Large lanterns, lifting gear on the day

Guide ranges for supply & fit. 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.

Fitting across Coleraine and nearby

Distance is rarely the deciding factor. A roof in Ballymena, 24 miles from Coleraine, gets the same survey, the same written quote and the same fitting process as one in BT52, BT55 and BT56. What changes the price is the job itself: size of unit, roof type, access and lifting. Derry/Londonderry, around 27 miles out, is treated the same way.

Fit-only or supply and fit

There are two ways to do this. Supply and fit means we source a roof lantern that suits your roof and install it, so one company answers for both the product choice and the fitting. Fit-only means you buy the unit and we install it. With fit-only, the product warranty stays with the maker or seller, and our written guarantee covers the fitting work. Both routes get the same checks on the opening, the upstand and the maker's instructions before anything is fixed.

On the day, we cover

  • Glass cleaned and packaging cleared from the roof
  • Upstand checked for size, level and square before the kit is opened
  • Frame assembled on the kerb in the maker's set order
  • Following the build order — We assemble lanterns in exactly the sequence the instructions give.
  • Level, not to a fall — We set or check the kerb level unless your lantern's maker says otherwise.

How a fitting day runs

Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a roof lantern: one to two days, weather permitting.

Regulations for Coleraine properties

Northern Ireland's building regulations set a minimum of WER Band C or 1.6 W/m²K for rooflights and roof windows in existing homes, assessed under Technical Booklet F1. New openings involve trimming the roof structure, so expect a building control application. Many house rooflights don't need planning permission, but conservation areas and listed buildings are excluded, and side windows near a boundary have obscure-glazing rules. We confirm what applies.

What to send for a quick quote

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 BT52, and we can price it.

Common questions in Coleraine

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.

What if my roof opening is the wrong size for the roof lantern?

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 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.

Got a unit waiting to go in, or need one sourced? Either way, start with your Coleraine address and a couple of photos.

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

Roof lanterns in Coleraine

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

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