What do sun tunnels & tubular skylights in Sidcup involve?
We handle sun tunnels & tubular skylights across Greater London, including Sidcup. In short: light pipes that bring daylight to halls and bathrooms with no window. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. In Sidcup, as anywhere, sun tunnels & tubular skylights are the usual choice for small internal rooms where a full rooflight will not fit.
From Sidcup to Bexley, Welling and Eltham, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Sidcup
- Diffusers in several sizes
- Pitched or flat-roof flashings
- Ventilation adaptor
- Integrated electric light
- Insulated tube sections
- Small ceiling opening, quick fit
- Works on pitched and flat roofs
What to check first
- Not a substitute for a habitable-room window
- Gives light, not a view
Planning, building control and Sidcup
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. 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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Read the planning permission guide before you commit to a design.
Sun tunnels & tubular skylights prices in Sidcup
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 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Sidcup, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Other services in Sidcup
Common questions
Can it go through a flat roof?
Yes, with a flat-roof flashing and upstand.
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.
Do you fit sun tunnels & tubular skylights in Sidcup?
Yes. We survey and fit sun tunnels & tubular skylights in Sidcup and across Greater London. Send your postcode and we will offer a survey date when we reply.
How do I book a survey in Sidcup?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
