Most roof lantern leaks start as small, preventable problems: blocked eaves, a lifted capping, a tired seal. Send photos from Hanworth (TW13) and we'll tell you which it is — with the price agreed in writing before any work.

Is it time for cleaning and maintenance?
- Leaves or moss at the eaves
- You've never had it checked
- The lantern is under trees
What usually causes it?
Algae and dirt
Hold moisture against seals and spoil the view.
Unnoticed wear
Nobody looks at the roof until it leaks.
Roof lanterns in Hanworth
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
London's extensions are often tight to neighbouring walls and roofs. Where a repair needs access over a neighbour's property, we'll tell you in advance so you can arrange it.
From Westminster to Hanworth is roughly 12 miles — all part of the Greater London area we cover.
Close by, we also cover Hampton (2 miles), Feltham (2 miles), Sunbury-on-Thames (3 miles).
Guide prices for cleaning and maintenance in Hanworth
Guide price for cleaning and maintenance: £95–£245 ex VAT (£114–£294 inc VAT), per visit. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.
Do you need permission in England?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.
How does it work?
- Send photosWhatsApp or upload a few photos and tell us when it leaks.
- Guide priceWe reply with a guide price and whether a visit is needed.
- Fixed price in writingYou approve the price and the date before anything starts.
- Repair and testWe fix what's failed, water-test where it matters, and send photos.
Cleaning and maintenance in Hanworth: questions
Do you need to visit to price cleaning and maintenance?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Can you repair a lantern someone else installed in Hanworth?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Do you clean the inside of the glass?
We can, where safe access from inside is possible; let us know when booking.
Can you set up regular visits?
Yes — tell us how often you'd like us to come and we'll confirm the price per visit in writing.
Other lantern repairs in Hanworth
- Glazing bar and capping repairs in Hanworth
- Upstand and kerb repairs in Hanworth
- Slipped glass panel repairs in Hanworth
- Condensation diagnosis and fixes in Hanworth
- Opening vent and actuator repairs in Hanworth
- Leak investigation and inspection in Hanworth
Cleaning and maintenance near Hanworth
More about cleaning and maintenance · All roof lantern repairs in Hanworth