The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Sevenoaks (TN13) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for flat roof junction and flashing repairs?
- Leak near the lantern but not from the frame
- Splits, blisters or lifted edges in the roof covering by the kerb
- Missing or loose edge trims and flashings
What usually causes it?
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.
About Sevenoaks and the TN13 area
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.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
From Maidstone to Sevenoaks is roughly 14 miles — all part of the Kent area we cover.
Close by, we also cover Tonbridge (6 miles), Swanley (9 miles), Tunbridge Wells (10 miles).
What should you expect to pay in Sevenoaks?
Typical range: £245–£695 ex VAT, which is £294–£834 with 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 Sevenoaks: questions
How do I get a price for flat roof junction and flashing repairs in Sevenoaks?
Send a few photos of the lantern and the problem, with your Sevenoaks postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Sevenoaks?
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 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.
What does a junction repair cost?
Usually £245–£695 ex VAT, confirmed in writing before work starts.
Other lantern repairs in Sevenoaks
- Roof lantern resealing in Sevenoaks
- Glazing bar and capping repairs in Sevenoaks
- Ridge and hip repairs in Sevenoaks
- Opening vent and actuator repairs in Sevenoaks
- Flat rooflight and skylight repairs in Sevenoaks
- Orangery lantern repairs in Sevenoaks
Flat roof junction and flashing repairs near Sevenoaks
More about flat roof junction and flashing repairs · All roof lantern repairs in Sevenoaks