How we approach skylight repairs & leak fixes in Bexley
For Bexley homes and buildings we offer skylight repairs & leak fixes: leak tracing, resealing, actuator repairs and glass replacement. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Skylight repairs & leak fixes suit leaks, condensation, misted units and failed actuators.
Bexley sits about 2 km from Bexleyheath and 4 km from Sidcup, and we cover the whole DA5 postcode district and the roads in between.
Specification options
- Condensation diagnosis
- Glass unit replacement
- Actuator, motor and control repairs
- Resealing and re-flashing
- Upstand and membrane repairs
- Leak tracing, not guesswork
- Storm and impact damage
What to check first
- Water tracking can show up far from the source
- Repairs are charged — the free survey applies to new installations
Consents for skylight repairs & leak fixes in Bexley
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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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.
Our planning guide covers each nation in more detail.
Guide prices for Bexley
Prices below are shown including and excluding VAT. In Bexley, 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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Bexley address.
- 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.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Related work in Bexley
Common questions
Can you fix a misted rooflight?
A misted unit means the glass seal has failed. The sealed unit, or the whole rooflight, needs replacing.
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.
Do you repair roof windows too?
Yes — flashings, seals, hinges and glass on pitched roof windows.
Do I need to be at home for the survey in Bexley?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Bexley?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
