Skylight installation for Swansea: the essentials
Skylight installation in Swansea means survey, supply and fit — new openings, extensions and fit-only work. We cover the SA1 district and the rest of West Glamorgan, with a survey before any price is fixed.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. Typical uses for skylight installation include new extensions, new openings and fit-only jobs.
We cover all of Swansea and the SA1 district, and nearby Briton Ferry and Gorseinon.
Choices for your Swansea project
- Supply and fit
- Upstands and flashings
- Internal plaster reveal
- Electrics coordination
- Fit only (customer-supplied units)
- Fixed price in writing before work
- Making good inside included
What to check first
- Fit-only work relies on the product being suitable and complete
- Structural changes may need an engineer's check
Do you need permission in Swansea?
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Welsh Building Regulations expect new or replacement rooflights to reach 2.2 W/m²K and roof windows 1.4 W/m²K or a Band B rating. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
See our building regulations guide for U-values, glazing limits and self-certification.
What does skylight installation cost in Swansea?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Swansea, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Skylight installation near Swansea
More we do in Swansea
Common questions
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.
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.
Is the survey free?
Yes, for new installations. Repair visits are charged.
Do you offer skylight installation in Swansea?
Yes. We carry out skylight installation in Swansea and across West Glamorgan. Send your postcode and we will offer a survey date when we reply.
Will I need planning permission in Swansea?
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed.
