We carry out roof lantern resealing in Canterbury and across the CT1 area. 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.

Is it time for roof lantern resealing?
- Cracked, split or shrunken sealant along the bars
- Black mould or dirt lines trapped in old silicone
- Sealant applied over sealant from previous patch repairs
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.
Roof lanterns in Canterbury
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
Canterbury is around 24 miles from Maidstone, and both are within our Kent coverage.
If you're just outside Canterbury, we also cover Whitstable (6 miles), Herne Bay (7 miles), Faversham (9 miles).
Guide prices for roof lantern resealing in Canterbury
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 England?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.
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 Canterbury: questions
How do I get a price for roof lantern resealing in Canterbury?
Send a few photos of the lantern and the problem, with your Canterbury 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 Canterbury do you cover?
As well as Canterbury, we cover nearby Whitstable, Herne Bay, Faversham, Ashford, Kent and the rest of Kent.
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.
How long does resealing take?
Most domestic lanterns take a few hours in dry weather.
Other lantern repairs in Canterbury
- Cracked lantern glass replacement in Canterbury
- Slipped glass panel repairs in Canterbury
- Timber roof lantern repairs in Canterbury
- Aluminium roof lantern repairs in Canterbury
- Roof lantern respraying in Canterbury
- Orangery lantern repairs in Canterbury
Roof lantern resealing near Canterbury
More about roof lantern resealing · All roof lantern repairs in Canterbury