Fitting jobs in Helensburgh
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
The joint between the rooflight and the roof covering is where most leaks start. On a flat roof that means turning the membrane up the kerb and terminating it properly under the frame. On a pitched roof it means the right flashing kit, lapped correctly with the tiles or slates. These details are fiddly and easy to rush on a busy build. Giving them to someone focused on fitting the rooflight, rather than treating it as one task among dozens, cuts the chance of a callback.
Is your Helensburgh address covered?
From the centre of Helensburgh out to its edges, postcode districts G84, PA23 and PA24 are all standard cover. The same applies to neighbouring Greenock, about 4 miles off, and Vale of Leven, around 6 miles away. If you are further out, towards Dumbarton or beyond, send the postcode and we will confirm before quoting.
Do you need permission in Helensburgh?
In Scotland a new rooflight needs a building warrant before work starts. A like-for-like replacement including the frame is exempt from a warrant but must meet current standards, so the glazing has to reach 1.6 W/m²K or better. For planning, rooflights on houses outside conservation areas can often go ahead under permitted development, but it is worth confirming with the planning authority.
Questions about rooflight fitting in Helensburgh
Will my new rooflight leak?
A correctly fitted unit should not. Leaks usually trace back to the detail around the frame: an upstand that is too low, a membrane or flashing that is not dressed properly, sealant applied to a damp surface, or water ponding against the kerb. We fit to the maker's instructions and check each of those points. The fitting carries a written workmanship guarantee, with its terms set out on your quote.
What upstand height and roof pitch does rooflight fitting need?
It depends on the product. Manufacturers usually specify a minimum upstand height above the finished roof surface, and a minimum pitch on the glass so rain runs off. We follow the maker's figures for your unit rather than a rule of thumb. If your existing kerb or roof falls short, we explain the options, such as raising the upstand or choosing a unit with built-in pitch.
Can you replace an old dome without redoing the whole roof?
Usually, yes. If the existing kerb is sound, level and tall enough, a new unit can often sit on it with a fresh seal to the roof covering. If the kerb is rotten or too low, we rebuild it and patch the covering around it rather than stripping the whole roof. This is checked at the survey and included in the written quote, so you know the full scope first.
Do you make good inside after fitting?
Yes, where the quote includes it. Internal finishing usually means lining the reveal with plasterboard, taping or skimming, and fitting trim where it meets the ceiling. Some people prefer their own plasterer or decorator to finish off, which is fine. The written quote spells out exactly where our work stops, so nobody is left guessing about who does what once the unit is in.

