Skylight installation in Crawley: what is involved?
For Crawley homes and buildings we offer skylight installation: survey, supply and fit — new openings, extensions and fit-only work. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. In Crawley, as anywhere, skylight installation is the usual choice for builders' projects and retrofits into finished roofs.
Crawley is the main town we list in West Sussex; we also cover nearby Horley and Horsham.
What you can choose
- New openings with joist trimming
- Electrics coordination
- Upstands and flashings
- Supply and fit
- Fit only (customer-supplied units)
- Making good inside included
- Fitting for builders on new extensions
What to check first
- Structural changes may need an engineer's check
- Building Regulations approval (a building warrant in Scotland) may be needed
Planning, building control and Crawley
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. 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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Read the planning permission guide before you commit to a design.
Skylight installation prices in Crawley
These are typical supply-and-fit ranges. For an address in Crawley, 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Skylight installation near Crawley
More we do in Crawley
Skylight installation in Crawley: questions
Do you fit rooflights bought elsewhere?
Yes. We check the product and the opening first, and our workmanship terms cover the fitting rather than the product.
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 work with builders?
Yes — on new extensions we fit to the builder's programme once the upstand or roof is ready.
Do you offer skylight installation in Crawley?
Yes. We carry out skylight installation in Crawley and across West Sussex. Send your postcode and we will offer a survey date when we reply.
Is the survey in Crawley free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
