What do walk-on rooflights involve?
Across Greater London, our walk-on rooflights work covers structural glass you can stand on, set flush into terraces and floors. Survey first, fixed price second, fitting third.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Victorian and Edwardian terraces with narrow side returns are typical of much of London, and a glass roof or long flat rooflight is the usual way to keep the back rooms bright once the return is built over.
Towns in Greater London
Options we can specify
- Integrated in paving pedestals or a timber deck
- Double or triple glazed with a structural top pane
- Anti-slip frit or etched top surface
- Internal floor panels between storeys
- Heated or self-cleaning glass on some ranges
- Flush with paving or decking — no trip edge
- Light below without losing usable terrace space
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
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 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 |
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.
Walk-on rooflights in nearby areas
Common questions
Can you see through it?
Clear glass can be seen through from both sides. A privacy interlayer or patterned frit keeps the light while obscuring the view.
Can it be used inside the house?
Yes. Internal walk-on panels pass light from an upper floor or ground floor to a basement below.
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 you fit walk-on rooflights across Greater London?
Yes. We survey and fit walk-on rooflights across Greater London, including London, Islington, Bexley.
