Skylight repairs & leak fixes for Clapham: the essentials
We handle skylight repairs & leak fixes across Greater London, including Clapham. In short: leak tracing, resealing, actuator repairs and glass replacement. 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. Think of skylight repairs & leak fixes for leaks, condensation, misted units and failed actuators.
We work across Greater London, including Clapham, and in neighbouring towns such as Balham and Battersea. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Actuator, motor and control repairs
- Condensation diagnosis
- Upstand and membrane repairs
- Glass unit replacement
- Planned maintenance visits
- Storm and impact damage
- Seal and flashing repairs
What to check first
- Commercial roofs need access and fall protection
- Water tracking can show up far from the source
Do you need permission in Clapham?
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. 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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Skylight repairs & leak fixes prices in Clapham
Prices below are shown including and excluding VAT. In Clapham, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Glass unit or actuator replacement | £595 – £1,555 | £495 – £1,295 |
| Upstand or membrane repair Typical | £355 – £955 | £295 – £795 |
| Diagnostic visit and reseal | £235 – £475 | £195 – £395 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Clapham address.
- Measure and check. A surveyor visits Clapham, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Skylight repairs & leak fixes near Clapham
Other services in Clapham
Skylight repairs & leak fixes in Clapham: questions
Is it condensation or a leak?
Condensation forms on the inside face on cold days and comes back in the same pattern. A leak appears when it rains and often tracks down the reveal.
Can you fix a misted rooflight?
A misted unit means the glass seal has failed. The sealed unit, or the whole rooflight, needs replacing.
Do you repair roof windows too?
Yes — flashings, seals, hinges and glass on pitched roof windows.
How do I book a survey in Clapham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Do I need to be at home for the survey in Clapham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
