Towns we list in Gwynedd & Anglesey
Fitting work across Gwynedd & Anglesey is carried out by vetted teams under the direction of S&K Property Investments and Improvement Ltd. They come to your property, and you never need to visit a depot. That holds for homes, trade sites and commercial buildings throughout our coverage in Wales. Your written quote names the contracting company, so you know exactly who is responsible for the job.
Fitting services in Gwynedd & Anglesey
- Fit-only rooflight installation
- Rooflight replacement
- New rooflight in an existing roof
- Rooflight upstands & kerbs
- Rooflight glass replacement
- Rooflight leak repairs
- Flat rooflight installation
- Frameless rooflight installation
- Electric opening rooflight installation
- Walk-on rooflight installation
- Sliding rooflight installation
- Roof access hatch installation
- Roof lantern installation
- Pitched roof window installation
- Loft conversion roof windows
- Conservation rooflight installation
- Sun tunnel installation
- Commercial rooflight installation
- Dome rooflight replacement
- Smoke vent rooflight installation
- Trade rooflight fitting
Planning and building regulations in Wales
Wales sets energy limits of 2.2 W/m²K for rooflights and 1.4 W/m²K for roof windows, and new rooflight openings generally need building regulations approval. Replacement units are controlled fittings; we are not registered with a competent person scheme, so ours are covered by a building notice to the council. Planning permission is needed for rooflights in conservation areas, National Parks, AONBs and World Heritage Sites. We check which applies and include the fee in your quote.
Questions about rooflight fitting in Gwynedd & Anglesey
Does a rooflight need building regulations approval?
In Wales a new opening generally needs building regulations approval. A replacement must be self-certified by a scheme-registered installer or covered by a building notice. We are not registered with a scheme, so replacements we fit go through a building notice, and the council's fee is shown on your quote.
Will my new rooflight leak?
A correctly fitted unit should not. Leaks usually trace back to the detail around the frame: an upstand that is too low, a membrane or flashing that is not dressed properly, sealant applied to a damp surface, or water ponding against the kerb. We fit to the maker's instructions and check each of those points. The fitting carries a written workmanship guarantee, with its terms set out on your quote.
Can you fit a rooflight in winter or when it is raining?
Yes, within limits. Cold is less of a problem than wet, because membranes, primers and sealants need a dry surface to bond. We plan fitting days around the forecast and may move a date if heavy rain is due. If the roof has to be opened up, it is not left overnight without a temporary weather seal, so the room below stays dry while the work is finished.
How does payment work?
Payment terms are set out on your written quote before you accept it. Depending on the job, that may mean a deposit, stage payments for larger work, or payment on completion. The contract is with S&K Property Investments and Improvement Ltd, part of the S&K Group. Nothing is added without your agreement: if something unexpected comes up, we discuss it and agree any change before carrying on.

