In Cowes, 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?
- 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
Common causes we find
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.
About Cowes and the PO31 area
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
We cover Cowes by arrangement: island work is planned around ferry access, and any travel or access costs are set out in your written quote before you commit.
If you're just outside Cowes, we also cover Newport, Isle of Wight (4 miles), Ryde (6 miles), Gosport (8 miles).
How much should it cost?
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 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 Cowes: questions
How do I get a price for roof lantern resealing in Cowes?
Send a few photos of the lantern and the problem, with your Cowes 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 Cowes do you cover?
As well as Cowes, we cover nearby Newport, Isle of Wight, Ryde, Gosport, Fareham and the rest of Isle of Wight.
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 Cowes
- Solar control and self-cleaning glass upgrades in Cowes
- Condensation diagnosis and fixes in Cowes
- Timber roof lantern repairs in Cowes
- uPVC roof lantern repairs in Cowes
- Urgent leak make-safe in Cowes
- Orangery lantern repairs in Cowes
Roof lantern resealing near Cowes
More about roof lantern resealing · All roof lantern repairs in Cowes