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RooflightInstallers.co.uk
Brixton · SW9 · Greater London

Flat rooflight installation in Brixton

Rooflight work is weather work. Membranes, primers and sealants all want a dry surface, so a fitting day in Brixton 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 flat rooflight we install, from a new opening to a straight swap or a fit-only job. We cover Brixton, the SW9 district and the rest of Greater London.

Guide price from £995 · Supply & fit

Guide prices in Brixton

Small fixed

£995 – £1,495including VAT at 20%

Double-glazed fixed unit up to 1000 × 1000 mm, fitted to a ready upstand

Medium fixed

£1,495 – £2,295including VAT at 20%

1000 × 1500 to 1000 × 2000 mm, double or triple glazed

Large fixed

£2,295 – £4,095including VAT at 20%

Bigger units, solar-control glass, two-person lift or lifting gear

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 Brixton and nearby

Looking at a property near Brixton but not quite in it? We work across SW9, SE5 and SE24 and outwards to Camberwell, Clapham and Peckham. Give us the full postcode when you get in touch, because access, parking and the route for a large unit all depend on the exact street. Those details shape the quote for any job around Brixton.

Already bought your unit?

There are two ways to do this. Supply and fit means we source a flat rooflight 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.

What the job includes

  • Product paperwork handed over and warranty registration explained
  • Lifting gear or extra hands arranged for large and heavy panes
  • Upstand checked or built to the maker's internal and external sizes
  • Pitch of the glass — We make sure the glass will sit at the pitch its maker asks for.
  • Ceiling and reveal depth — We measure the depth from the kerb top to the ceiling to plan the reveal.

From arrival to clean-up

Arrive and agree the plan. Sheet the floor and furniture. Set up the ladder, tower or scaffold. Check the opening, the upstand or flashing, and the unit against the paperwork. Fix and pack a flat rooflight level. Seal it into the roof. Line the reveal or fit the ceiling trim. Clean the glass, clear the waste, and talk you through it. That is the shape of most fitting days, and for this type of job it usually takes one day.

Planning and building rules in England

England's rules in short: permitted development usually covers a rooflight on a house roof provided it doesn't stick out more than 0.15 m or rise above the ridge, though a listed building always needs consent and some streets have Article 4 directions. Building regulations apply to new openings, and replacements go through building control; as we are not registered with a competent person scheme, we use a building notice and show the fee on the quote. The energy limit for rooflights in existing homes is 2.2 W/m²K, and the 2026 Approved Document L, in force from 24 March 2027, keeps that figure.

Help us quote accurately

A fast quote needs five things: a photo of the roof from outside, one from the room below, rough sizes of the opening or the space, the roof covering (felt, single-ply, fibreglass, tiles, slate or metal), and a note on access. If you have already bought the unit, add the product link or spec sheet. And give us the postcode, SW9 or a neighbouring district.

Common questions in Brixton

Do you offer trade rates for builders and roofers?

We carry out subcontract fitting for builders, roofers, extension companies and commercial contractors. Pricing is per job or per schedule of units, agreed in writing before we start. We can work to your programme, fit on your upstand or build our own, and leave the opening ready for the next trade. Send drawings or a unit schedule and we will come back with a trade quote.

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.

Will my new flat 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.

Planning a flat rooflight in Brixton? Tell us about the roof and we will come back with a clear price in writing.

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

Flat rooflights in Brixton

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

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