What do skylight repairs & leak fixes in Welling involve?
Skylight repairs & leak fixes in Welling means leak tracing, resealing, actuator repairs and glass replacement. We cover the DA16 district and the rest of Greater London, with a survey before any price is fixed.
Many London roofs are reached only through the house or over neighbouring property, so lifting heavy glass is planned at survey rather than on the day. Typical uses for skylight repairs & leak fixes include leaks, condensation, misted units and failed actuators.
From Welling to Bexleyheath, Bexley and Sidcup, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Welling project
- Condensation diagnosis
- Planned maintenance visits
- Glass unit replacement
- Resealing and re-flashing
- Upstand and membrane repairs
- Honest repair-or-replace advice
- Leak tracing, not guesswork
Before you order: points to check
- Commercial roofs need access and fall protection
- Repairs are charged — the free survey applies to new installations
Do you need permission in Welling?
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. 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. 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.
Read the planning permission guide before you commit to a design.
Skylight repairs & leak fixes prices in Welling
These are typical supply-and-fit ranges. For an address in Welling, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| 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 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Welling 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.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Skylight repairs & leak fixes near Welling
More we do in Welling
Questions about skylight repairs & leak fixes in Welling
Can you repair an electric rooflight that will not open?
Often, yes — actuators, controllers and rain sensors can be replaced if parts are available.
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 I need to be at home for the survey in Welling?
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 Welling?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
