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 Newport, Gwent (NP10) and we'll tell you which it is — with the price agreed in writing before any work.
Is it time for roof lantern resealing?
- Several small leaks rather than one obvious one
- Sealant applied over sealant from previous patch repairs
- 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.
Patch over patch
Fresh sealant run over old, dirty sealant rarely bonds. It looks fixed for a season and then lets go.
Roof lanterns in Newport, Gwent
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
If you're just outside Newport, Gwent, we also cover Risca (5 miles), Cwmbran (5 miles), Pontypool (8 miles).
Guide prices for roof lantern resealing in Newport, Gwent
Typical range: £245–£495 ex VAT, which is £294–£594 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.
Roof lantern resealing in Newport, Gwent: questions
Do you cover Newport, Gwent?
Yes. We cover Newport, Gwent, including the NP10 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 Newport, Gwent do you cover?
As well as Newport, Gwent, we cover nearby Risca, Cwmbran, Pontypool, Caerphilly 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 Newport, Gwent
- Upstand and kerb repairs in Newport, Gwent
- Flat roof junction and flashing repairs in Newport, Gwent
- Condensation diagnosis and fixes in Newport, Gwent
- Aluminium roof lantern repairs in Newport, Gwent
- uPVC roof lantern repairs in Newport, Gwent
- Commercial roof lantern repairs in Newport, Gwent
Roof lantern resealing near Newport, Gwent
More about roof lantern resealing · All roof lantern repairs in Newport, Gwent