What are sun tunnels & tubular skylights?
Our sun tunnels & tubular skylights service in Cornwall covers light pipes that bring daylight to halls and bathrooms with no window. We survey every job before fixing the price.
Barn and chapel conversions in the South West often need bespoke or shaped rooflights to suit the original structure. Holiday lets and second homes across the South West often want roof windows with blinds and remote opening for when the house is empty.
Towns in Cornwall
Specification options in Cornwall
- Rigid (brighter) or flexible tubes
- Pitched or flat-roof flashings
- Integrated electric light
- Insulated tube sections
- Diffusers in several sizes
- Small ceiling opening, quick fit
- Works on pitched and flat roofs
Planning and building rules in England
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
Guide prices
These are typical supply-and-fit ranges. For an address in Cornwall, 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 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.
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.
Rigid or flexible tube?
Rigid tubes carry much more light. Flexible tubes are easier where the loft is cluttered, but lose light faster.
Can it go through a flat roof?
Yes, with a flat-roof flashing and upstand.
Do you fit sun tunnels & tubular skylights across Cornwall?
Yes. We survey and fit sun tunnels & tubular skylights across Cornwall, including Redruth, Falmouth, St Austell.
