Walk-on rooflights in Greenwich: what is involved?
Our walk-on rooflights service in Greenwich covers structural glass you can stand on, set flush into terraces and floors. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Think of walk-on rooflights for terraces where the light below matters as much as the space above.
Greenwich is around 9 km from central London, and we survey and fit throughout that part of Greater London, including the SE10 district.
Specification options
- Double or triple glazed with a structural top pane
- Anti-slip frit or etched top surface
- Internal floor panels between storeys
- Integrated in paving pedestals or a timber deck
- Heated or self-cleaning glass on some ranges
- Designed to a stated load rating
- Can also be used internally between floors
Before you order: points to check
- Regular cleaning keeps the anti-slip finish effective
- Structural support and the design load must be confirmed by the manufacturer or an engineer
Planning and building rules for Greenwich
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. 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.
Guide prices for Greenwich
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 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Greenwich address.
- Measure and check. A surveyor visits Greenwich, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
Related work in Greenwich
Common questions
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.
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.
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.
How do I book a survey in Greenwich?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Is the survey in Greenwich free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
