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RooflightInstallers.co.uk
Cardiff & the Vale · Wales

Walk-on rooflight installation in Cardiff & the Vale

Most people looking for walk-on rooflight installation in Cardiff & the Vale want three answers: can you do it, what will it cost, and when. Yes, anywhere in Cardiff & the Vale. Cost starts from a guide of £3,345 and is fixed in a written quote once we know the roof. Timing depends on fitter availability and the weather, so you get offered dates rather than promises. Fit-only jobs, where you already own a walk-on rooflight, are usually priced from photos.

Guide prices in Cardiff & the Vale

Up to 1 m²

£3,345 – £4,545including VAT at 20%

Laminated walk-on unit with anti-slip finish, fitted level with the terrace

Up to 2 m²

£4,545 – £7,195including VAT at 20%

Larger walk-on glazing

Large or bespoke

£7,195 – £11,995including VAT at 20%

Big panes, structural calculations, lifting gear

Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.

Towns we list in Cardiff & the Vale

Coverage in Cardiff & the Vale works by postcode, not by distance from an office. Give us the full postcode and we will confirm whether it is standard cover, as it is for most of Wales, or one of the few remote and island areas handled by arrangement. Either way, you get a written quote before any work is booked, with travel included in the price.

Included in the work

  • Engineer's calculations and the unit's loading data checked together
  • Unit bedded and fixed so it sits level with the finished surface
  • Support frame or upstand prepared to the approved structural design
  • Structural calculations — We need structural calculations for the glass and its support before a walk-on job goes ahead.
  • Weight on delivery day — We plan the delivery and lift before booking any lifting gear or extra hands.

Rules that apply in Wales

For a Welsh home, start with where the house is. In a conservation area, National Park, AONB or World Heritage Site, a rooflight needs planning permission; outside those, permitted development usually covers one that projects 150 mm or less. Side-facing roof windows within 10.5 m of a boundary must be obscure-glazed and fixed. New openings need building regulations approval, and replacements we fit are notified with a building notice, as we are not registered with a competent person scheme. We confirm all of this for your address.

Common questions in Cardiff & the Vale

Do you cover Cardiff & the Vale?

Yes. Fitters travel to addresses in Cardiff & the Vale and the surrounding districts, including CF postcodes. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

What if my roof opening is the wrong size for the walk-on rooflight?

We find out before the fitting day, not on it. If the opening is slightly out, it can usually be adjusted by trimming or by packing out the upstand. If it is a long way off, the choice is between altering the opening and changing the unit. Bear in mind that rooflights are often sold by builder's opening size rather than external size, so check which one your measurement refers to.

What is included in the price?

The written quote lists it line by line. Typically that covers fitting labour, fixings, sealants, membrane or flashing materials, any upstand work, internal finishing if agreed, and taking away the waste. For supply and fit, the unit itself is included too. Scaffold, lifting gear and any third-party fees, where needed, are shown separately so you can see what each part of the job costs.

Rear extension at dusk with lit rooflights and a roof lantern
Ready when you are

Fitting in Cardiff & the Vale

Send photos and rough sizes, or ask for a survey visit for install work. You get one fixed written price before anything starts.

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