Skylights and rooflights in Carshalton
SkylightCompany.uk covers Carshalton and the surrounding part of Greater London, from a single roof window in a loft to a glass link or a warehouse roof.
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.
Carshalton is around 16 km from central London, and we survey and fit throughout that part of Greater London, including the SM5 district.
Flat roof rooflights in Carshalton
Lanterns & glass roofs in Carshalton
Pitched roofs & lofts in Carshalton
Commercial rooflights in Carshalton
Upgrades, repairs & fitting in Carshalton
Planning and building rules in England
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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.
Nearby towns
Skylight questions: Carshalton
Do you fit skylights and rooflights in Carshalton?
Yes. We survey and fit skylights and rooflights in Carshalton and across Greater London. Send your postcode and we will offer a survey date when we reply.
Do I need to be at home for the survey in Carshalton?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Will I need planning permission in Carshalton?
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line.
Can you work alongside my builder in Carshalton?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Fixed or opening?
Opening units suit kitchens, bathrooms and bedrooms; fixed units are simpler and cheaper where the room already ventilates well.
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.
