North Wales
Roof lanterns and rooflights for rear extensions in North Wales
Lanterns, flat rooflights and walk-on glass that bring light deep into the plan. We design and build rear extensions across North Wales, from Wrexham and Buckley to Deeside, covering single-storey kitchen extensions, two-storey additions, side returns and wraparounds.

Rear extensions in North Wales gain most from a rooflight placed against the old back wall, where the room would otherwise be darkest. Older terraces near the centre and post-war semis further out are typical of North Wales. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
What does it cost in North Wales?
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 North Wales?
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 North Wales 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 North Wales?
We cover 14 towns and districts in North Wales, including Wrexham, Buckley and Deeside.
Who builds the extension?
Vetted building teams working under contract to us; your contract is with S&K Property Investments and Improvement Ltd.