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RooflightInstallers.co.uk
Barnes · SW13 · Greater London

Fit-only rooflight installation in Barnes

Rooflight work is weather work. Membranes, primers and sealants all want a dry surface, so a fitting day in Barnes 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 rooflight we install, from a new opening to a straight swap or a fit-only job. We cover Barnes, the SW13 district and the rest of Greater London.

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

What the job costs in Barnes

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.

Fitting across Barnes and nearby

Jobs across SW13, SW14 and W4 are part of our normal cover for Barnes. We are not an office on the high street. Our fitting teams come out to the property from wherever they are working that week. Neighbouring places such as Chiswick and Roehampton are covered on the same terms, so a house on the edge of town is no harder to book than one in the centre.

Fit-only or supply and fit

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

  • Unit bedded on the sealant or tape the maker specifies, then screw-fixed
  • Check of the delivered unit, glass, fixings pack and instructions before work starts
  • Internal reveal trimmed or lined, with the protective film removed at the end
  • Upstand height above the roof — We measure how far the upstand stands above the finished roof surface, including any ballast or walkway.
  • Delivery damage and missing parts — We ask you to open the delivery and check it as soon as it arrives, not on fitting day.

From arrival to clean-up

Protection comes before tools. Floors, furniture and stairs get covered, and the ceiling below the opening is sheeted to catch dust. Up top, the fitters confirm the opening is square and the upstand or flashing suits what the maker specifies. Fixing follows, then weather-sealing into the membrane, felt or tiles. Only once the roof is tight do they turn to the internal reveal. Time on site for a rooflight: half a day to a day, weather permitting.

Regulations for Barnes properties

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 replacements we fit are notified with a building notice, 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.

What to send for a quick quote

For fit-only work, the product details matter most: the link, the spec sheet, or a photo of the label on the box. Alongside that, send pictures of the roof and the ceiling below, approximate opening sizes, the type of roof covering, and how someone would get onto the roof. For supply and fit, the same photos and sizes do the job. Finish with your postcode, such as SW13.

Common questions in Barnes

Do you cover Barnes?

Yes. Fitters travel to addresses in Barnes and the surrounding districts, including SW13. 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.

Do I need planning permission for a rooflight in Barnes?

Often not. Many rooflights fall under permitted development, provided they do not project beyond the national limit and meet the other conditions that apply in England. Conservation areas, listed buildings and some flats are different and may need consent. Because the rules depend on the property, we confirm what is likely to apply at your address and point you to the planning authority where an application is needed.

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.

Tell us your postcode, SW13 or close by, and what you want fitted. We will reply with the next steps and a quote.

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

Fit-only fitting in Barnes

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

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