Sun tunnels & tubular skylights for Dolgellau: the essentials
Thinking about sun tunnels & tubular skylights in Dolgellau? The short answer: light pipes that bring daylight to halls and bathrooms with no window. The longer answer depends on your roof, which is why we survey before we price.
Chapels, barns and farm buildings converted across Wales often need bespoke or conservation-style glass. Typical uses for sun tunnels & tubular skylights include windowless hallways, landings and bathrooms.
Jobs in Dolgellau 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.
What you can choose
- Integrated electric light
- Ventilation adaptor
- Pitched or flat-roof flashings
- Insulated tube sections
- Diffusers in several sizes
- Works on pitched and flat roofs
- Daylight where no window is possible
Before you order: points to check
- Light output falls with tube length and bends
- Not a substitute for a habitable-room window
Planning and building rules for 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.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. 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.
Sun tunnels & tubular skylights prices in Dolgellau
These are typical supply-and-fit ranges. For an address in Dolgellau, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large rigid tunnel, long run | £1,675 – £2,275 | £1,395 – £1,895 |
| Standard rigid tunnel Typical | £1,315 – £1,795 | £1,095 – £1,495 |
| Compact flexible tunnel | £1,075 – £1,435 | £895 – £1,195 |
How the job runs
- Tell us what you have. Send the LL40 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Dolgellau, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
More we do in Dolgellau
Sun tunnels & tubular skylights in Dolgellau: questions
Can it work at night?
Some models include a light fitting in the diffuser.
Rigid or flexible tube?
Rigid tubes carry much more light. Flexible tubes are easier where the loft is cluttered, but lose light faster.
Do sun tunnels need planning permission?
Usually not on a house, provided the dome does not project too far and the property is not listed. Check if you live in a conservation area or a flat.
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.
Do I need to be at home for the survey in Dolgellau?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
