Guide prices in Gwynedd & Anglesey
Compact sliding
Motorised sliding unit for a stair or hatch opening
Standard sliding
Larger opening onto a roof terrace
Large sliding
Big spans, lifting gear and longer installs
Guide ranges for supply & fit. Your price is fixed in a written quote after we have seen photos or surveyed. Scaffold, access towers or a crane are priced separately if the job needs them, and building control fees, where a job needs them, are shown as their own line.
Towns we list in Gwynedd & Anglesey
Coverage in Gwynedd & Anglesey works by postcode, not by distance from an office. Give us the full postcode and we will confirm whether it is standard cover, as it is for most of Wales, or one of the few remote and island areas handled by arrangement. Either way, you get a written quote before any work is booked, with travel included in the price.
Included in the work
- Cable routed to the motor, ready for the electrician's final connection, quoted as a separate line
- Clear run confirmed for the glass to slide over when open
- Upstand checked for strength, square and level along its full length
- What the glass slides over — We check the area the glass will cover when open before deciding where the unit goes.
- Guarding on the terrace — We look at how the roof terrace will be guarded before the rooflight is fitted.
Rules that apply 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.
Common questions in Gwynedd & Anglesey
Do you need scaffolding to fit a rooflight?
Not always. Single-storey roofs can often be reached safely with ladders, a tower or edge protection. Higher roofs, steep pitches and large units usually need scaffold or a mobile platform, and heavy glass may need a crane. We assess access from your photos or at the survey, and any scaffold or lifting cost is shown as its own line on the written quote.
What upstand height and roof pitch does sliding rooflight fitting need?
It depends on the product. Manufacturers usually specify a minimum upstand height above the finished roof surface, and a minimum pitch on the glass so rain runs off. We follow the maker's figures for your unit rather than a rule of thumb. If your existing kerb or roof falls short, we explain the options, such as raising the upstand or choosing a unit with built-in pitch.
Do you cover Gwynedd & Anglesey?
Yes. Fitters travel to addresses in Gwynedd & Anglesey and the surrounding districts, including LL postcodes. We do not run an office there; the survey and the fitting happen at your property. A few island and remote postcodes are covered by arrangement; if yours is one, we confirm travel and dates before quoting.

