What are sun tunnels & tubular skylights?
Our sun tunnels & tubular skylights service in South Glamorgan covers light pipes that bring daylight to halls and bathrooms with no window. We survey every job before fixing the price.
Welsh planning rules exclude rooflights from permitted development in conservation areas and National Parks, so we check the designation before quoting. Many Welsh homes have older single-storey rear extensions where a glass rooflight brightens a dark kitchen.
Towns in South Glamorgan
What you can choose
- Integrated electric light
- Insulated tube sections
- Ventilation adaptor
- Diffusers in several sizes
- Pitched or flat-roof flashings
- Works on pitched and flat roofs
- Optional ventilation or lighting kit on some models
Planning and building rules in Wales
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. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
What do sun tunnels & tubular skylights cost in South Glamorgan?
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 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 about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Sun tunnels in nearby areas
Common questions
Will it get condensation?
Insulating the tube where it passes through a cold loft prevents most condensation.
How much light does a sun tunnel give?
A good rigid tunnel on a bright day lights a hallway well. Output depends on tube diameter, length and the number of bends.
Can it go through a flat roof?
Yes, with a flat-roof flashing and upstand.
Can it work at night?
Some models include a light fitting in the diffuser.
Do I need to be at home for the survey in South Glamorgan?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
