We carry out flat roof junction and flashing repairs in Llantwit Major and across the CF61 area. The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions.
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
What usually causes it?
Cracked GRP
Fibreglass roofs can crack at the kerb corner where movement concentrates.
Missing trims
Without a trim or flashing to protect the top edge, water gets in behind the membrane.
About Llantwit Major and the CF61 area
Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.
We cover Llantwit Major as part of South Glamorgan, about 14 miles from Cardiff.
Close by, we also cover Cowbridge (4 miles), Bridgend (8 miles), Barry (9 miles).
Guide prices for flat roof junction and flashing repairs in Llantwit Major
Typical range: £245–£695 ex VAT, which is £294–£834 with 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 Llantwit Major: questions
Do you cover Llantwit Major?
Yes. We cover Llantwit Major, including the CF61 postcode area, as part of South Glamorgan. 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.
Do you need to visit to price flat roof junction and flashing repairs?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
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 Llantwit Major
- Roof lantern leak repairs in Llantwit Major
- Upstand and kerb repairs in Llantwit Major
- Misted glass unit replacement in Llantwit Major
- uPVC roof lantern repairs in Llantwit Major
- Flat rooflight and skylight repairs in Llantwit Major
- Roof lantern replacement in Llantwit Major
Flat roof junction and flashing repairs near Llantwit Major
More about flat roof junction and flashing repairs · All roof lantern repairs in Llantwit Major