How we approach walk-on rooflights in Sidcup
We handle walk-on rooflights across Greater London, including Sidcup. In short: structural glass you can stand on, set flush into terraces and floors. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. Walk-on rooflights suit terraces where the light below matters as much as the space above.
Sidcup sits about 4 km from Bexley and 4 km from Welling, and we cover the whole DA14 postcode district and the roads in between.
Specification options
- Integrated in paving pedestals or a timber deck
- Fixed or with privacy interlayer
- Internal floor panels between storeys
- Anti-slip frit or etched top surface
- Heated or self-cleaning glass on some ranges
- Anti-slip finish on the walking surface
- Flush with paving or decking — no trip edge
Things we check at survey
- Glass on roofs people can reach must not be fragile — check the non-fragility rating
- Drainage around the unit needs planning so water does not pond on the glass
Consents for walk-on rooflights in 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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
What do walk-on rooflights cost in Sidcup?
Prices below are shown including and excluding VAT. In Sidcup, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or bespoke walk-on panel | £6,595 – £11,995 | £5,495 – £9,995 |
| Mid-size walk-on rooflight Typical | £4,795 – £6,595 | £3,995 – £5,495 |
| Small walk-on panel | £3,595 – £4,795 | £2,995 – £3,995 |
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.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Other services in Sidcup
Walk-on rooflights in Sidcup: questions
Is the glass slippery?
Walk-on glass has an anti-slip finish, usually a ceramic frit or etched pattern. Like any outdoor surface it needs cleaning to stay effective.
Will it sit flush with my paving?
Yes — the unit is set on its own upstand so the glass finishes level with the surrounding paving or decking.
How much weight can a walk-on rooflight take?
It depends on the model and size. Manufacturers state a design imposed load for each unit; we only specify a unit whose rating suits the use, such as a private terrace or a busier area.
Do I need to be at home for the survey in Sidcup?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit walk-on rooflights in Sidcup?
Yes. We survey and fit walk-on rooflights in Sidcup and across Greater London. Send your postcode and we will offer a survey date when we reply.
