Cardiff and the Vale
Roof lanterns and rooflights for rear extensions in Cardiff and the Vale
Lanterns, flat rooflights and walk-on glass that bring light deep into the plan. Rear extensions in Cardiff and the Vale: we cover 6 towns including Cardiff, Barry and Penarth, with design, approvals and the build under one contract.
Rear extensions in Cardiff and the Vale gain most from a rooflight placed against the old back wall, where the room would otherwise be darkest. Cardiff and the Vale has Victorian terraces near the centre and semis further out. Welsh permitted development allows up to 4 metres at the rear for many houses.
What does it cost in Cardiff and the Vale?
As a guide, £2,200–£4,500 including VAT. These are guide ranges; the written quote after the survey is the figure that counts.
What approvals does it need in Cardiff and the Vale?
Wales has its own Approved Document L, with targets for walls, roofs, floors and glazing similar to but not identical with England's. Heavily glazed designs are checked with a calculation.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent.
Where in Cardiff and the Vale do we work?
FAQ
Questions people ask
Lantern or flat rooflight?
A lantern gives height and a feature; a flat rooflight is cleaner and lower-profile.
Can a rooflight open?
Yes, manually or electrically, with rain sensors.
Will it leak?
Not when fitted on a proper upstand with the membrane dressed up it.
Do you cover all of Cardiff and the Vale?
We cover 6 towns and districts in Cardiff and the Vale, including Cardiff, Barry and Penarth.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.