The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions. Send photos from Tredegar (NP22) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for 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?
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.
Roof lanterns in Tredegar
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 Newport, Gwent to Tredegar is roughly 17 miles — all part of the Gwent area we cover.
Neighbouring places we cover include Ebbw Vale (2 miles), Merthyr Tydfil (6 miles), Blackwood (7 miles).
Guide prices for flat roof junction and flashing repairs in Tredegar
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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in Wales. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010 (as applied in Wales); we confirm in writing which route applies before any replacement. 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 Tredegar: questions
Do you cover Tredegar?
Yes. We cover Tredegar, including the NP22 postcode area, as part of Gwent. 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.
Which places near Tredegar do you cover?
As well as Tredegar, we cover nearby Ebbw Vale, Merthyr Tydfil, Blackwood, Aberdare and the rest of Gwent.
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 Tredegar
- Roof lantern leak repairs in Tredegar
- Ridge and hip repairs in Tredegar
- Eaves beam and gutter repairs in Tredegar
- Solar control and self-cleaning glass upgrades in Tredegar
- Timber roof lantern repairs in Tredegar
- Roof lantern respraying in Tredegar
Flat roof junction and flashing repairs near Tredegar
More about flat roof junction and flashing repairs · All roof lantern repairs in Tredegar