How we approach walk-on rooflights in Putney
Thinking about walk-on rooflights in Putney? The short answer: structural glass you can stand on, set flush into terraces and floors. The longer answer depends on your roof, which is why we survey before we price.
Party walls are a fact of life in London terraces, and rooflights close to a shared wall need detailing that keeps the neighbour's side dry too. Typical uses for walk-on rooflights include roof terraces, balconies and floors above basements.
From Putney to Barnes, Fulham and Wandsworth, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Putney
- Double or triple glazed with a structural top pane
- Heated or self-cleaning glass on some ranges
- Anti-slip frit or etched top surface
- Integrated in paving pedestals or a timber deck
- Fixed or with privacy interlayer
- Flush with paving or decking — no trip edge
- Light below without losing usable terrace space
Before you order: points to check
- 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
Do you need permission in Putney?
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Putney
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
- Tell us what you have. Send the SW15 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Putney, 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.
Neighbouring towns
Other services in Putney
Common 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.
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 survey in Putney free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Can you work alongside my builder in Putney?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
