Resealing is the planned, whole-lantern version of a leak repair: we cut out the old, failed sealant, clean every joint back to a sound surface and reseal the cappings, ridge and eaves with materials that suit the frame. Send photos from Ebbw Vale (NP23) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for roof lantern resealing?
- Black mould or dirt lines trapped in old silicone
- Several small leaks rather than one obvious one
- A lantern that is 8–15 years old and has never been maintained
Why it happens
Sealant past its life
Exposed sealant on a roof takes UV, frost and constant expansion and contraction. It hardens, loses grip and pulls away from the glass.
Wrong product used
General-purpose or acetoxy silicone can fail early on some frames and coatings. Glazing joints need a low-modulus, compatible sealant.
Roof lanterns in Ebbw Vale
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 Ebbw Vale as part of Gwent, about 16 miles from Newport, Gwent.
We also cover nearby Tredegar (2 miles), Merthyr Tydfil (8 miles), Blackwood (8 miles).
Guide prices for roof lantern resealing in Ebbw Vale
Most roof lantern resealing jobs come in between £245 and £495 ex VAT (£294–£594 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?
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.
Roof lantern resealing in Ebbw Vale: questions
Do you cover Ebbw Vale?
Yes. We cover Ebbw Vale, including the NP23 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 Ebbw Vale do you cover?
As well as Ebbw Vale, we cover nearby Tredegar, Merthyr Tydfil, Blackwood, Abergavenny and the rest of Gwent.
How much does it cost to reseal a roof lantern?
A standard-size lantern on a single-storey extension is usually £245–£495 ex VAT. Larger lanterns, difficult access or gasket replacement add to that, and you get the fixed price in writing first.
Can you match the colour of my frame?
We use sealants in common frame colours such as anthracite grey, black and white, and match as closely as the range allows.
Other lantern repairs in Ebbw Vale
- Ridge and hip repairs in Ebbw Vale
- Upstand and kerb repairs in Ebbw Vale
- Flat roof junction and flashing repairs in Ebbw Vale
- Aluminium roof lantern repairs in Ebbw Vale
- Orangery lantern repairs in Ebbw Vale
- Commercial roof lantern repairs in Ebbw Vale
Roof lantern resealing near Ebbw Vale
More about roof lantern resealing · All roof lantern repairs in Ebbw Vale