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Coleraine · BT52 · County Londonderry

Rooflight leak repairs in Coleraine

Tell us what you are seeing: drips, stains on the ceiling, misting, a draught, or a rooflight that no longer closes tight. Photos help. From that we arrange a diagnostic visit in Coleraine, with its cost agreed before booking. On site we check the sealant, the flashing or membrane upturn, the condensation channels and the glass. Then you get a straight answer and, if a repair is worth doing, a written quote for the rooflight leak repairs.

Guide price from £145 · Charged visit, then repair priced before any work

Coleraine guide prices

Diagnostic visit

£145 – £195including VAT at 20%

Roof and inside inspected, cause found, written repair price

Reseal and re-flash

£295 – £645including VAT at 20%

Failed sealant and flashing taken out, joints cleaned, resealed and taped

Upstand or membrane repair

£645 – £1,445including VAT at 20%

Rotten kerb section or roof membrane at the upstand repaired

Guide ranges. The first visit is charged and priced before booking; any repair is priced in writing before work starts. 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.

Areas around Coleraine we cover

If you also own a property or a business unit in Ballymena, Derry/Londonderry or Antrim, that is no problem. We can survey and quote both, and where it suits, line the fitting days up together. Every address is reached by fitters travelling to it from their current jobs, and BT52, BT55 and BT56 sit comfortably within that pattern.

On the day, we cover

  • Inside check of stains, frame drainage channels and the reveal
  • Outside inspection of glass, frame, sealant, flashing and roof covering
  • Lifted flashing or tape removed and renewed
  • Water lying against the kerb — We check whether rainwater sits against the upstand after it stops raining.
  • Upstand height and condition — We measure the kerb and probe the timber for softness.

How a repair visit goes

On arrival we agree access and protect the floor. Then a methodical check: glass for misting or cracks, seals for gaps, the frame for movement, the upstand and roof covering for splits or water lying against the kerb. If the cause is obvious and minor, it can usually be sorted as part of the visit. If not, you have the evidence and a priced repair plan, and the choice is yours.

Planning and building rules in Northern Ireland

In Northern Ireland, the energy standard for a new or replacement rooflight or roof window in an existing home is WER Band C or a U-value of 1.6 W/m²K, under Technical Booklet F1. Cutting a new opening alters the roof structure, so a building control application is expected; confirm with the council's building control team. Planning permitted development covers many rooflights on houses if they stay below the ridge, project no more than 15 cm on a road-facing slope and sit at least 0.5 m from the ridge, eaves and verges.

What to send us

Tell us where the water appears, how long it has been happening and what the weather was doing when it started. A couple of photos from inside and outside, plus the postcode, let us price the visit before you book and plan what the fitter brings.

Common questions in Coleraine

Why is my rooflight leaking?

The usual causes are sealant that has cracked or pulled away, flashing or membrane that has perished at the edges, condensation channels blocked with dirt, water ponding against the kerb, or a seal failing on the glass unit. Sometimes the water is coming in elsewhere and running along to the rooflight. A diagnostic visit finds the real source before anyone starts applying sealant.

Should I repair or replace my old leaking rooflight?

It depends on the age and condition of the unit and what has failed. A single perished seal or a blocked channel is worth repairing. A brittle, discoloured dome, a rotten kerb, or several faults at once usually make replacement the better value. After the diagnostic visit we set out both options with prices, so you can decide with the full picture in front of you.

Can you replace just the misted glass?

Often, yes. Misting between the panes means the sealed unit has failed, but the frame around it may be perfectly sound. Where the maker's design allows the glass to be changed, we measure the unit and fit a replacement, which costs less than a whole new rooflight. Where it does not, or the frame is also worn out, we explain why replacement is the better option.

Send photos of the problem in Coleraine and we will price the visit before you book it.

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

Leak repairs in Coleraine

Send photos of the problem and we will tell you what a visit costs before booking.

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