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RooflightInstallers.co.uk
Croydon · CR7 · Greater London

Fit-only rooflight installation in Croydon

Fit-only rooflight installation in Croydon comes down to what happens around the glass. A good unit sat on a poor upstand, or with the membrane or flashing cut short at the corners, will still let water in. We fit each rooflight to the maker's instructions for fixings, packers and sealant, for homes and businesses across Croydon and the rest of Greater London. That covers supply and fit, fit-only for a unit you already own, and swapping out a tired one. Every job starts with a written quote, so the price and scope are clear before anyone climbs a ladder.

Guide price from £445 · Labour only — you supply the rooflight

What the job costs in Croydon

Onto a ready upstand

£445 – £795including VAT at 20%

Customer-supplied unit up to about 1.5 m², fitted to a prepared kerb, sealed and trimmed

With a new upstand

£795 – £1,295including VAT at 20%

Insulated timber upstand built, membrane turned up and dressed, unit fitted and sealed

Large or heavy unit

£1,195 – £2,145including VAT at 20%

Extra hands or lifting gear, larger openings, fixed or opening units

Guide ranges for labour only — you supply the rooflight. 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.

Coverage in and around Croydon

Fitters travel to the job, so the address is what counts. In Croydon that means postcode districts CR7, CR0 and CR9, and the same teams can just as easily take on work in South Croydon, about 1 mile away, or South Norwood at roughly 2 miles. Survey and fitting dates are offered according to fitter availability, and travel is built into the quote rather than added later.

Buying your own, or letting us supply

Your unit or ours, the fitting standard is the same. For supply and fit we choose a rooflight to suit the roof and price it with the installation. For fit-only we work with what you have, after confirming it arrived undamaged, that it matches the builder's opening, and that the upstand will sit at the height the maker asks for. Report any transit damage to the seller, as the product cover is theirs and the maker's. Our written guarantee applies to the fitting itself.

Included in the work

  • Upstand height, level and fall checked, and squareness confirmed across the diagonals
  • Opening and upstand measured against the maker's drawing, timber to timber
  • Unit bedded on the sealant or tape the maker specifies, then screw-fixed
  • Delivery damage and missing parts — We ask you to open the delivery and check it as soon as it arrives, not on fitting day.
  • Upstand height above the roof — We measure how far the upstand stands above the finished roof surface, including any ballast or walkway.

What happens on the day

Where a job takes half a day to a day, the split is usually structural work first and finishing second. Early on, the fitters cut or prepare the opening, trim where needed and prepare the upstand or flashing. Then a rooflight is lifted in, fixed and made weathertight so the roof is sound before anyone moves inside. Plasterboard, trim and filler for the reveal come after. Each evening the work area is swept, and at the end the glass is cleaned and the team talks you through what was done.

Regulations for Croydon properties

Two sets of rules matter in England. Planning: a rooflight on a house is normally permitted development if it projects no more than 0.15 m and stays below the highest part of the roof, but flats, listed buildings and Article 4 areas need checking. Building regulations: new openings need approval for the structure and energy performance, and a replacement is a controlled fitting. We are not registered with a competent person scheme, so we notify replacements to building control with a building notice and put the council's fee on the quote.

Help us quote accurately

Each detail you send takes a question off our list. Photos inside and out show the opening and the ceiling. Rough measurements tell us the unit size. The roof covering tells us how it will be sealed in. Access notes tell us whether a tower or scaffold is needed. A product link, if you have one, lets us check it against the opening. Your postcode, CR7 or nearby, confirms travel.

Common questions in Croydon

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.

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.

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.

Got a unit waiting to go in, or need one sourced? Either way, start with your Croydon address and a couple of photos.

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

Fit-only fitting in Croydon

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

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