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Rooflight installers in Gwynedd & Anglesey

Start by finding your town or your service. This page covers rooflight installation across Gwynedd & Anglesey, Wales, with links to each of the 3 towns we list and to every service: supply and fit, fit-only installs, replacing old units, cutting new openings, lanterns, roof windows, sun tunnels, access hatches and leak repairs. Each town page sets out the postcodes and nearby places that go with it, and each service page explains what the work involves and what it usually costs. If your town is missing from the list, it may well still be covered. Send the postcode and we will confirm.

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

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.

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

Rooflight fitting in Gwynedd & Anglesey

Send your postcode, photos and what needs fitting. You will get a fixed written price before anything starts.

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