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RooflightInstallers.co.uk
Greater London · TW7, TW3, TW5, TW8

Rooflight installers in Isleworth

Every rooflight job in Isleworth has the same core: a correctly sized opening, an upstand or flashing that suits the roof, a unit fixed to the maker's instructions, and a weathertight seal. Around that core the work varies. Fit-only installs, replacements on existing kerbs, new openings with joist trimming, roof lanterns over extensions, roof windows in pitched roofs, and subcontract fitting for trades working in the area. We handle all of it across Greater London, with a written quote before work starts and a workmanship guarantee whose terms are on that quote.

Fitting jobs in Isleworth

Fitting & replacement

Flat roof rooflights

Pitched roofs & lofts

Commercial & trade

Why use a rooflight fitting specialist

Builders run many trades at once, and the rooflight often gets squeezed in between the roofer and the plasterer. That is when corners get cut: an upstand built a little low, sealant applied in damp conditions, a reveal left rough. Bringing in a fitting specialist for that one stage means someone is focused on it alone, following the maker's instructions, with time set aside to finish the inside properly. The builder keeps control of the programme, and the rooflight gets proper attention.

Postcodes and places we cover

We do not run a branch in Isleworth. What we do is send fitting teams to the job, which means TW7, TW3 and TW5 are covered, and so are Hounslow, Heston and Richmond. The advantage for you is simple: you deal with one company for the quote, the fitting and the guarantee, wherever the property sits.

Do you need permission in Isleworth?

In England, a new rooflight opening generally needs building regulations approval because the roof structure is altered and the glazing must meet energy rules: 2.2 W/m²K for a rooflight in an existing home, or 1.4 W/m²K (or WER Band B) for a roof window. Planning is often not needed on a house: permitted development covers rooflights that stand no more than 0.15 m proud of the roof slope and sit below the highest part of the roof. Flats, listed buildings and areas with an Article 4 direction are different, so we check your address first.

Questions about rooflight fitting in Isleworth

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.

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.

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

Rooflight fitting in Isleworth

Send your postcode, photos and what needs fitting. One fixed written price before anything starts.

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