In Gorseinon, as everywhere, 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 and we'll tell you what we think has failed.
Is it time for roof lantern resealing?
- Cracked, split or shrunken sealant along the bars
- Several small leaks rather than one obvious one
- A lantern that is 8–15 years old and has never been maintained
What usually causes it?
Wrong product used
General-purpose or acetoxy silicone can fail early on some frames and coatings. Glazing joints need a low-modulus, compatible sealant.
Patch over patch
Fresh sealant run over old, dirty sealant rarely bonds. It looks fixed for a season and then lets go.
Covering Gorseinon and nearby
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 Swansea to Gorseinon is roughly 5 miles — all part of the West Glamorgan area we cover.
We also cover nearby Llanelli (5 miles), Swansea (5 miles), Ammanford (9 miles).
What should you expect to pay in Gorseinon?
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?
Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. 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 Gorseinon: questions
How do I get a price for roof lantern resealing in Gorseinon?
Send a few photos of the lantern and the problem, with your Gorseinon 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 Gorseinon do you cover?
As well as Gorseinon, we cover nearby Llanelli, Swansea, Ammanford, Neath and the rest of West Glamorgan.
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.
How long does resealing take?
Most domestic lanterns take a few hours in dry weather.
Other lantern repairs in Gorseinon
- Flat roof junction and flashing repairs in Gorseinon
- uPVC roof lantern repairs in Gorseinon
- Leak investigation and inspection in Gorseinon
- Urgent leak make-safe in Gorseinon
- Roof lantern replacement in Gorseinon
- Orangery lantern repairs in Gorseinon
Roof lantern resealing near Gorseinon
More about roof lantern resealing · All roof lantern repairs in Gorseinon