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RooflightInstallers.co.uk
Clapham · SW4 · Greater London

Trade rooflight fitting in Clapham

Glass is heavy, and bigger units get heavy fast. Fitting a rooflight in Clapham means planning how it travels from the delivery vehicle to the roof without chipping an edge or straining a back. Smaller units go up by hand with two fitters. Larger ones may need a hoist, a scaffold loading bay or a crane, and we tell you at quote stage if that applies. Once it is up, the fitting follows the maker's sequence: seat, fix, seal, finish. We take on work like this across Greater London.

Guide price from £295 + VAT · Labour only, ex VAT for trade accounts

What the job costs in Clapham

Per flat rooflight

£295 – £495plus VAT, trade rate

Fit a supplied unit to your prepared upstand, sealed and trimmed

Per roof lantern

£695 – £1,495plus VAT, trade rate

Assemble and glaze a supplied lantern on your upstand

Two-person day rate

£445 – £645plus VAT, trade rate

Fitting team for multi-unit or mixed work

Guide ranges for labour only, ex VAT for trade accounts. 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 SW4 and neighbouring districts

Distance is rarely the deciding factor. A roof in Battersea, 1 mile from Clapham, gets the same survey, the same written quote and the same fitting process as one in SW4, SW8 and SW11. What changes the price is the job itself: size of unit, roof type, access and lifting. Brixton, around 1 mile out, is treated the same way.

What the job includes

  • A short note of anything we found that needs your attention
  • Roof lanterns assembled and glazed on your upstand
  • Flat rooflights fitted, sealed and trimmed on your kerbs
  • Who weathers the roof — We agree who turns the roof covering up the kerb before we book.
  • Upstand ready and to size — We ask for the upstands to be built to the maker's drawing before we arrive.

What happens on the day

On the day, you need to be in at the start and at the end. In between, the fitters get on with it. They will want the room below cleared where possible, a parking spot if you have one, and somewhere to set the unit down safely. After checking the opening and the upstand or flashing, they fix a rooflight, seal it and finish the inside. Packaging and any old unit leave with them unless the quote says otherwise.

Planning and building rules in England

Replacing a rooflight in an English home is a controlled fitting: it has to be self-certified by a scheme-registered installer or notified to building control. We are not registered with a competent person scheme, so on trade replacements we agree up front who notifies building control, and the new unit has to meet current energy limits. Adding a new one usually means a building regulations application, because joists or rafters are trimmed. On the planning side, most house rooflights are permitted development if they project 0.15 m or less; on a side slope the glass must be obscured and fixed unless the opening part is over 1.7 m above the floor.

Before you get in touch

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 SW4 and we will come back with a quote or a survey date.

Common questions in Clapham

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.

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.

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.

Running a job in Clapham? Send the drawings or unit details and we will price the fitting, plus VAT, in writing.

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

Trade fitting in Clapham

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

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