South Wales Valleys
Roof lanterns and rooflights for rear extensions in the South Wales Valleys
Lanterns, flat rooflights and walk-on glass that bring light deep into the plan. Rear extensions in the South Wales Valleys: we cover 27 towns including Rhondda, Tonypandy and Bridgend, with design, approvals and the build under one contract.
Rear extensions in the South Wales Valleys gain most from a rooflight placed against the old back wall, where the room would otherwise be darkest. South Wales Valleys is largely terraced streets on sloping ground, where back gardens step up or down from the house. Excavation, retaining walls and drainage are priced at the survey.
What does it cost in the South Wales Valleys?
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 the South Wales Valleys?
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 the South Wales Valleys 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 the South Wales Valleys?
We cover 27 towns and districts in the South Wales Valleys, including Rhondda, Tonypandy and Bridgend.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.