The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Canary Wharf (E14) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Leak near the lantern but not from the frame
- Splits, blisters or lifted edges in the roof covering by the kerb
- 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.
Roof lanterns in Canary Wharf
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.
We cover Canary Wharf as part of Greater London, about 5 miles from Westminster.
If you're just outside Canary Wharf, we also cover Bow (1 mile), Canning Town (2 miles), Greenwich (2 miles).
Guide prices for flat roof junction and flashing repairs in Canary Wharf
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?
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 Canary Wharf: questions
Do you cover Canary Wharf?
Yes. We cover Canary Wharf, including the E14 postcode area, as part of Greater London. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for flat roof junction and flashing repairs in Canary Wharf?
Send a few photos of the lantern and the problem, with your Canary Wharf postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Canary Wharf
- Ridge and hip repairs in Canary Wharf
- Cracked lantern glass replacement in Canary Wharf
- Slipped glass panel repairs in Canary Wharf
- Solar control and self-cleaning glass upgrades in Canary Wharf
- Timber roof lantern repairs in Canary Wharf
- Aluminium roof lantern repairs in Canary Wharf
Flat roof junction and flashing repairs near Canary Wharf
More about flat roof junction and flashing repairs · All roof lantern repairs in Canary Wharf