The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Bexhill-on-Sea (TN40) and we'll tell you which it is — with the price agreed in writing before any work.

Signs you need flat roof junction and flashing repairs
- Leak near the lantern but not from the frame
- Missing or loose edge trims and flashings
- Ponding on the roof next to the lantern
Why it happens
Cracked GRP
Fibreglass roofs can crack at the kerb corner where movement concentrates.
Missing trims
Without a trim or flashing to protect the top edge, water gets in behind the membrane.
Roof lanterns in Bexhill-on-Sea
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
From Brighton to Bexhill-on-Sea is roughly 27 miles — all part of the East Sussex area we cover.
Close by, we also cover Hastings (5 miles), Hailsham (9 miles), Eastbourne (10 miles).
What should you expect to pay in Bexhill-on-Sea?
Guide price for flat roof junction and flashing repairs: £245–£695 ex VAT (£294–£834 inc 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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.
Flat roof junction and flashing repairs in Bexhill-on-Sea: questions
How do I get a price for flat roof junction and flashing repairs in Bexhill-on-Sea?
Send a few photos of the lantern and the problem, with your Bexhill-on-Sea postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Do you need to visit to price flat roof junction and flashing repairs?
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.
Do you repair the whole flat roof?
We repair the area around the lantern. If the wider roof is failing we'll tell you and can quote, but we won't push a new roof if a local repair will do.
Can you repair a GRP roof without it showing?
Repairs are colour-matched as closely as possible, but new topcoat next to weathered topcoat can look slightly different at first.
Other lantern repairs in Bexhill-on-Sea
- Roof lantern resealing in Bexhill-on-Sea
- Glazing bar and capping repairs in Bexhill-on-Sea
- Cracked lantern glass replacement in Bexhill-on-Sea
- Solar control and self-cleaning glass upgrades in Bexhill-on-Sea
- Timber roof lantern repairs in Bexhill-on-Sea
- uPVC roof lantern repairs in Bexhill-on-Sea
Flat roof junction and flashing repairs near Bexhill-on-Sea
More about flat roof junction and flashing repairs · All roof lantern repairs in Bexhill-on-Sea