In Surbiton, as everywhere, a roof lantern leak is almost always a failed seal, a lifted capping, blocked eaves drainage or a problem where the kerb meets the flat roof — not a failed lantern. Send photos and we'll tell you what we think has failed.

Is it time for roof lantern leak repairs?
- Drips from a glazing bar or the eaves beam when it rains
- Brown staining or bubbling paint on the plasterboard lining around the lantern
- A leak that only appears in wind-driven rain from one direction
Why it happens
Lifted or misaligned cappings
Top cappings clip or screw over each glazing bar. If one has lifted, been knocked or was never seated, rain gets straight under it.
Blocked eaves drainage
Most lanterns collect water in a channel inside the eaves beam and let it out through weep slots. Leaves, moss and grit block the slots and the channel overflows indoors.
Roof lanterns in Surbiton
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.
Across London, many lanterns sit on rear extensions with access only through the house, so we protect floors and plan the work to keep time indoors to a minimum. Parking and any permits are factored into the quote.
We cover Surbiton as part of Greater London, about 10 miles from Westminster.
If you're just outside Surbiton, we also cover New Malden (2 miles), Esher (3 miles), Hampton (3 miles).
Guide prices for roof lantern leak repairs in Surbiton
Most roof lantern leak repairs jobs come in between £195 and £595 ex VAT (£234–£714 including VAT), per lantern. 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?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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.
Roof lantern leak repairs in Surbiton: questions
How do I get a price for roof lantern leak repairs in Surbiton?
Send a few photos of the lantern and the problem, with your Surbiton postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Surbiton do you cover?
As well as Surbiton, we cover nearby New Malden, Esher, Hampton, Ewell and the rest of Greater London.
How much does a roof lantern leak repair cost?
Most leak repairs fall between £195 and £595 ex VAT for a standard lantern with ladder access. The fixed price is confirmed in writing before any work starts.
Will you show me what was wrong?
Yes. We photograph the failed detail and the finished repair and send them to you with the invoice.
Other lantern repairs in Surbiton
- Roof lantern resealing in Surbiton
- Glazing bar and capping repairs in Surbiton
- Upstand and kerb repairs in Surbiton
- Cracked lantern glass replacement in Surbiton
- Slipped glass panel repairs in Surbiton
- Orangery lantern repairs in Surbiton
Roof lantern leak repairs near Surbiton
More about roof lantern leak repairs · All roof lantern repairs in Surbiton