Skylight installation for Caerphilly: the essentials
For Caerphilly 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.
Chapels, barns and farm buildings converted across Wales often need bespoke or conservation-style glass. Think of skylight installation for builders' projects and retrofits into finished roofs.
Caerphilly is around 15 km from Newport, Gwent, and we survey and fit throughout that part of Gwent, including the CF83 district.
What you can choose
- Fit only (customer-supplied units)
- New openings with joist trimming
- Upstands and flashings
- Supply and fit
- Internal plaster reveal
- Fit-only for units you have bought
- Making good inside included
Before you order: points to check
- Building Regulations approval (a building warrant in Scotland) may be needed
- Structural changes may need an engineer's check
Planning and building rules for Caerphilly
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. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
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.
Our planning guide covers each nation in more detail.
What does skylight installation cost in Caerphilly?
These are typical supply-and-fit ranges. For an address in Caerphilly, 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.
- Measure and check. A surveyor visits Caerphilly, measures and checks structure and access.
- 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.
Neighbouring towns
Related work in Caerphilly
Questions about skylight installation in Caerphilly
Do you work with builders?
Yes — on new extensions we fit to the builder's programme once the upstand or roof is ready.
Is the survey free?
Yes, for new installations. Repair visits are charged.
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 in Caerphilly free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
How do I book a survey in Caerphilly?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
