What do conservation rooflights in Porthmadog involve?
Conservation rooflights in Porthmadog means slim, low-profile steel-look rooflights for period and listed roofs. We cover the LL49 district and the rest of Gwynedd, with a survey before any price is fixed.
Chapels, barns and farm buildings converted across Wales often need bespoke or conservation-style glass. In Porthmadog, as anywhere, conservation rooflights are the usual choice for slate and plain-tile roofs where a quiet roofline matters.
Jobs in Porthmadog are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Choices for your Porthmadog project
- Central vertical glazing bar
- Toughened or laminated double glazing
- Steel or aluminium frames
- Blinds
- Manual or electric opening
- Often preferred by conservation officers
- Steel or aluminium frame in black or grey
Things we check at survey
- Conservation officers may specify size and position
- Projection above the roof line is limited — usually as flush as possible
Do you need permission in Porthmadog?
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed. Listed buildings need listed building consent from the council, and flats have no householder permitted development rights.
Welsh Building Regulations expect new or replacement rooflights to reach 2.2 W/m²K and roof windows 1.4 W/m²K or a Band B rating. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
Our planning guide covers each nation in more detail.
Guide prices for Porthmadog
Prices below are shown including and excluding VAT. In Porthmadog, as elsewhere, making good inside and access equipment are the main variables.
| 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 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Porthmadog
Questions about conservation rooflights in Porthmadog
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
Can you copy an original rooflight?
Some makers produce bespoke sizes to match an existing opening. We can survey and quote.
How do I book a survey in Porthmadog?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Is the survey in Porthmadog free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
