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RooflightInstallers.co.uk
Horley · RH6 · Surrey

Rooflight upstands & kerbs in Horley

A kerb that is a few millimetres out of square, or a little too low once the roof covering goes on, can stop a rooflight sealing properly. That is why upstand work in Horley starts with measuring the opening, the roof build-up and the unit's kerb size together. The upstand is then built from treated timber, insulated and weathered into the membrane, felt or fibreglass. You get a written quote first and a note of the sizes it was built to.

Guide price from £245 · Labour and materials, rooflight not included

Guide prices

Timber upstand

£245 – £445including VAT at 20%

Treated timber kerb built square and level to the maker's size

Insulated upstand

£445 – £845including VAT at 20%

Kerb with insulation and the roof membrane turned up and dressed

Large or with trimming

£845 – £1,445including VAT at 20%

Bigger kerbs or where joists need trimming first

Guide ranges for labour and materials, rooflight not included. 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.

Where our fitters travel

Looking at a property near Horley but not quite in it? We work across RH6, RH1 and RH2 and outwards to Crawley, Redhill and Reigate. 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 Horley.

Included in the work

  • Roof membrane turned up, bonded and finished at the kerb top
  • Height set above the finished roof to the maker's stated minimum
  • Diagonals measured so the kerb is square before anything sits on it
  • Roof covering compatibility — We check what the roof is covered in before choosing how the membrane meets the kerb.
  • Height above the finished roof — We set the upstand so it stands at least 150 mm above the finished roof, measured from the top of any ballast, paving or walkway.

What happens on the day

Building an upstand starts with the rooflight's own drawing: its kerb size, height above the finished roof and fall. The team sets the timber out to those figures, checks the diagonals, insulates the outer faces and dresses the membrane up and over. If the rooflight is going on the same day, it is fitted next; if not, the kerb is protected until it does.

Regulations for Horley properties

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.

Getting a price from photos

What we cannot see, we have to guess, and guesses make quotes wider. So the more you send, the tighter the price. Useful: shots from the roof or garden, shots from the room underneath, a rough width and length, the roof finish, any access problems, and the product page if you have already ordered. Add the property postcode around RH6 and we will come back with a quote or a survey date.

Common questions in Horley

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.

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.

Can you remove and dispose of the old rooflight?

Yes. Taking out the old unit is part of any replacement job, and it leaves with the rest of the waste unless you ask to keep it. Old domes, glass and frames go through proper waste routes. If removal turns up a rotten kerb or damaged decking, we show you what we have found and agree the repair with you before going any further.

Questions before you commit? Send them over with your Horley postcode and we will answer them plainly, with a quote alongside.

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

Upstands & kerbs in Horley

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

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