In Walthamstow, as everywhere, the junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos and we'll tell you what we think has failed.
Is it time for 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
Common causes we find
Unbonded membrane
EPDM or single-ply that has come away from the kerb lets water run behind it.
Cracked GRP
Fibreglass roofs can crack at the kerb corner where movement concentrates.
About Walthamstow and the E17 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.
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.
Walthamstow is around 8 miles from Westminster, and both are within our Greater London coverage.
Close by, we also cover Leytonstone (2 miles), Tottenham (2 miles), Woodford Green (2 miles).
What should you expect to pay in Walthamstow?
Most flat roof junction and flashing repairs jobs come in between £245 and £695 ex VAT (£294–£834 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.
Flat roof junction and flashing repairs in Walthamstow: questions
Can you repair a lantern someone else installed in Walthamstow?
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.
Which places near Walthamstow do you cover?
As well as Walthamstow, we cover nearby Leytonstone, Tottenham, Woodford Green, Stamford Hill and the rest of Greater London.
What does a junction repair cost?
Usually £245–£695 ex VAT, confirmed in writing before work starts.
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 Walthamstow
- Roof lantern resealing in Walthamstow
- Upstand and kerb repairs in Walthamstow
- Misted glass unit replacement in Walthamstow
- Aluminium roof lantern repairs in Walthamstow
- Leak investigation and inspection in Walthamstow
- Urgent leak make-safe in Walthamstow
Flat roof junction and flashing repairs near Walthamstow
More about flat roof junction and flashing repairs · All roof lantern repairs in Walthamstow