The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Warrington (WA1) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Splits, blisters or lifted edges in the roof covering by the kerb
- 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.
Missing trims
Without a trim or flashing to protect the top edge, water gets in behind the membrane.
Covering Warrington and nearby
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
From Chester to Warrington is roughly 19 miles — all part of the Cheshire area we cover.
If you're just outside Warrington, we also cover Newton-le-Willows (4 miles), Golborne (6 miles), Widnes (7 miles).
How much should it cost?
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?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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 Warrington: questions
Do you cover Warrington?
Yes. We cover Warrington, including the WA1 postcode area, as part of Cheshire. 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 Warrington?
Send a few photos of the lantern and the problem, with your Warrington 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 Warrington
- Ridge and hip repairs in Warrington
- Cracked lantern glass replacement in Warrington
- Slipped glass panel repairs in Warrington
- Timber roof lantern repairs in Warrington
- Urgent leak make-safe in Warrington
- Roof lantern replacement in Warrington
Flat roof junction and flashing repairs near Warrington
More about flat roof junction and flashing repairs · All roof lantern repairs in Warrington