Skylights and rooflights in Finchley
Looking for skylights in Finchley? We handle survey, supply and fitting for homes and businesses across N3 and nearby Muswell Hill and Highgate.
Victorian and Edwardian terraces with narrow side returns are typical of much of London, and a glass roof or long flat rooflight is the usual way to keep the back rooms bright once the return is built over.
Neighbouring towns include Muswell Hill (4 km) and Highgate (5 km). We offer a survey date when we reply to your enquiry.
Flat roof rooflights in Finchley
Lanterns & glass roofs in Finchley
Pitched roofs & lofts in Finchley
Commercial rooflights in Finchley
Upgrades, repairs & fitting in Finchley
Planning and building rules in England
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Also covering near Finchley
Skylight questions: Finchley
Can you work alongside my builder in Finchley?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you fit skylights and rooflights in Finchley?
Yes. We survey and fit skylights and rooflights in Finchley and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Finchley free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do I need to be at home for the survey in Finchley?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Will a rooflight make my room too hot?
It can on a south-facing roof with clear glass. Solar-control glass, an opening unit and a blind keep the room comfortable.
Can a skylight be fitted into an existing flat roof?
Yes. We form the opening, trim joists, build an insulated upstand, re-waterproof and make good the ceiling.
