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RooflightInstallers.co.uk
Brixton · SW9 · Greater London

Sun tunnel installation in Brixton

Plenty of rooflight trouble starts with a tape measure. Units are often sold by the builder's opening, meaning the hole in the roof, rather than the overall external size, and confusing the two leaves you with a frame that does not suit the opening. Before we fit any sun tunnel in Brixton, we measure the opening, the upstand or kerb where there is one, and the finished roof level, then compare them with the maker's drawing. If something is out, you hear about it before the fitting day rather than on it. That single check keeps most jobs like this on track.

Guide price from £595 · Supply & fit

What the job costs in Brixton

Short rigid tube

£595 – £845including VAT at 20%

Around 250 mm tube, short straight run through a loft

Wider or longer run

£845 – £1,145including VAT at 20%

Around 350 mm tube or longer runs with bends

Flat roof or complex

£1,145 – £1,745including VAT at 20%

Flat roof kits, long runs or two tubes

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.

Covering SW9 and neighbouring districts

Our fitters come to you. For Brixton that covers SW9, SE5 and SE24, plus nearby Camberwell and Clapham. We do not keep a yard or showroom in the area, and you do not need to visit one. The survey happens at your property or, for fit-only work, from the photos you send. Dates follow fitter availability, which we confirm when you accept the quote.

Fit-only or supply and fit

A damaged delivery is a frequent snag on fit-only work. Before the day, unpack a sun tunnel, photograph it, and tell the seller about any cracks or scuffs, because claims are much easier made early. We will also ask for the model or a link, so we can read the maker's instructions and check the opening size and the flashing kit it expects. If everything lines up, we fit it. If not, we explain what needs changing first.

What the job includes

  • Route through the loft checked for joists, cables and pipes
  • Roof opening cut and the flashing fitted to tiles, slates or a flat-roof kit
  • Ceiling opening cut neatly and the diffuser fitted
  • Condensation in cold lofts — We insulate the tube where it passes through a cold loft.
  • Length and bends in the tube — We plan the shortest, straightest route we can between the roof and the ceiling.

Fitting your sun tunnel, step by step

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 sun tunnel 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 half a day to a day.

Planning, building control and Brixton

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.

Before you get in touch

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 SW9, and we can price it.

Common questions in Brixton

Do you cover Brixton?

Yes. Fitters travel to addresses in Brixton and the surrounding districts, including SW9. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

Can you fit a rooflight in winter or when it is raining?

Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.

Will my new sun tunnel 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.

Get in touch with the details of your Brixton property and we will explain what the job involves and what it costs.

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

Sun tunnels 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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