What does skylight installation in Bexley involve?
We handle skylight installation across Greater London, including Bexley. In short: survey, supply and fit — new openings, extensions and fit-only work. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Typical uses for skylight installation include builders' projects and retrofits into finished roofs.
Bexley sits about 2 km from Bexleyheath and 4 km from Sidcup, and we cover the whole DA5 postcode district and the roads in between.
Specification options
- Supply and fit
- Electrics coordination
- Fit only (customer-supplied units)
- Upstands and flashings
- New openings with joist trimming
- Free survey for new installations
- Making good inside included
What to check first
- Work at height is planned with suitable access
- Structural changes may need an engineer's check
Do you need permission in Bexley?
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
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.
Our planning guide covers each nation in more detail.
What does skylight installation cost in Bexley?
These are typical supply-and-fit ranges. For an address in Bexley, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| New opening in an existing roof, supply and fit | £2,395 – £5,395 | £1,995 – £4,495 |
| Supply and fit into a new extension Typical | £1,435 – £3,595 | £1,195 – £2,995 |
| Fit only, customer-supplied unit | £595 – £1,195 | £495 – £995 |
What happens next
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Skylight installation near Bexley
Other services in Bexley
Questions about skylight installation in Bexley
Do I need a structural engineer?
For new openings that cut joists or rafters, a structural check is sensible and building control may ask for calculations.
Who handles building control?
We tell you which route applies — building control approval, a building warrant in Scotland, or in England and Wales self-certification by a registered competent person — and supply the product data.
How long does installation take?
Fitting into a prepared upstand takes about a day. A new opening in an existing roof, including making good, often takes two to three days.
Do you offer skylight installation in Bexley?
Yes. We carry out skylight installation in Bexley and across Greater London. Send your postcode and we will offer a survey date when we reply.
Is the survey in Bexley free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
