Conservation rooflights for Dolgellau: the essentials
For Dolgellau homes and buildings we offer conservation rooflights: slim, low-profile steel-look rooflights for period and listed roofs. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Many Welsh homes have older single-storey rear extensions where a glass rooflight brightens a dark kitchen. Typical uses for conservation rooflights include period, listed and conservation-area roofs.
Dolgellau sits about 17 km from Machynlleth and 27 km from Porthmadog, and we cover the whole LL40 postcode district and the roads in between.
Specification options
- Manual or electric opening
- Central vertical glazing bar
- Blinds
- Toughened or laminated double glazing
- Steel or aluminium frames
- Steel or aluminium frame in black or grey
- Double glazed behind a period look
Before you order: points to check
- Projection above the roof line is limited — usually as flush as possible
- Listed building consent is needed for listed buildings
Planning, building control and Dolgellau
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
In Wales the limiting values are 2.2 W/m²K for a rooflight and 1.4 W/m²K (or WER Band B) for a roof window in an existing house. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
See our building regulations guide for U-values, glazing limits and self-certification.
What do conservation rooflights cost in Dolgellau?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or electric conservation rooflight | £2,755 – £4,195 | £2,295 – £3,495 |
| Standard conservation rooflight Typical | £2,035 – £2,755 | £1,695 – £2,295 |
| Small conservation rooflight | £1,795 – £2,155 | £1,495 – £1,795 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Dolgellau address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Conservation rooflights near Dolgellau
Other services in Dolgellau
Conservation rooflights in Dolgellau: questions
Can they open?
Yes, most are top-hung or side-hung for ventilation and cleaning, with manual or electric operation.
Can you copy an original rooflight?
Some makers produce bespoke sizes to match an existing opening. We can survey and quote.
Do I need consent for a conservation rooflight?
On a listed building you need listed building consent. In a conservation area, check with the council — many areas have Article 4 directions affecting roof alterations.
How do I book a survey in Dolgellau?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Can you work alongside my builder in Dolgellau?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
