The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Porthcawl (CF36) 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.
Cracked GRP
Fibreglass roofs can crack at the kerb corner where movement concentrates.
About Porthcawl and the CF36 area
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.
We cover Porthcawl as part of Mid Glamorgan, about 6 miles from Bridgend.
We also cover nearby Bridgend (6 miles), Port Talbot (8 miles), Maesteg (9 miles).
Guide prices for flat roof junction and flashing repairs in Porthcawl
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 Wales?
In Wales, 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 (as applied in Wales), so we set out the route in writing first. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council before changing a lantern on a listed property.
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 Porthcawl: questions
How do I get a price for flat roof junction and flashing repairs in Porthcawl?
Send a few photos of the lantern and the problem, with your Porthcawl postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Porthcawl do you cover?
As well as Porthcawl, we cover nearby Bridgend, Port Talbot, Maesteg, Llantwit Major and the rest of Mid Glamorgan.
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 Porthcawl
- Upstand and kerb repairs in Porthcawl
- Cracked lantern glass replacement in Porthcawl
- Slipped glass panel repairs in Porthcawl
- Timber roof lantern repairs in Porthcawl
- uPVC roof lantern repairs in Porthcawl
- Leak investigation and inspection in Porthcawl
Flat roof junction and flashing repairs near Porthcawl
More about flat roof junction and flashing repairs · All roof lantern repairs in Porthcawl