The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. We carry out flat roof junction and flashing repairs across West Midlands, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need flat roof junction and flashing repairs
- 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
What usually causes it?
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 West Midlands
Lanterns in central England see a bit of everything — summer sun that ages seals and end caps, autumn leaf fall that blocks eaves, and frosty mornings that bring condensation. A yearly check covers all three.
Urban grime and traffic film dull glass and frames quickly; a clean and seal check makes a tired lantern look and perform much better.
- Birmingham
- Coventry
- Wolverhampton
- Dudley
- Walsall
- Solihull
- Sutton Coldfield
- West Bromwich
- Halesowen
- Stourbridge
- Smethwick
- Willenhall
- Tipton
- Bloxwich
- Wednesfield
- Shirley
- Brierley Hill
- Aldridge
- Wednesbury
- Kingswinford
What should you expect to pay for flat roof junction and flashing repairs in West Midlands?
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 West Midlands: questions
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.
Which towns in West Midlands do you cover?
All of West Midlands, including Birmingham, Coventry, Wolverhampton, Dudley, Walsall, Solihull. Rural and remote addresses are covered by arrangement.
How do I get a price for flat roof junction and flashing repairs in West Midlands?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in West Midlands
- Roof lantern leak repairs in West Midlands
- Upstand and kerb repairs in West Midlands
- Cracked lantern glass replacement in West Midlands
- Condensation diagnosis and fixes in West Midlands
- Roof lantern respraying in West Midlands
- Urgent leak make-safe in West Midlands
Nearby areas
- Flat roof junction and flashing repairs in Worcestershire
- Flat roof junction and flashing repairs in Staffordshire
- Flat roof junction and flashing repairs in Warwickshire
- Flat roof junction and flashing repairs in Shropshire
- Flat roof junction and flashing repairs in Leicestershire
More about flat roof junction and flashing repairs · All roof lantern repairs in West Midlands