We carry out roof lantern resealing in Walton-on-Thames and across the KT12 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.
What you might be seeing
- Black mould or dirt lines trapped in old silicone
- Several small leaks rather than one obvious one
- Sealant applied over sealant from previous patch repairs
Why it happens
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 Walton-on-Thames
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.
We cover Walton-on-Thames as part of Surrey, about 13 miles from Guildford.
Close by, we also cover Sunbury-on-Thames (1 mile), Esher (2 miles), Hampton (3 miles).
What should you expect to pay in Walton-on-Thames?
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?
In England, like-for-like repairs to a roof lantern don't usually involve building control. A full replacement or a bigger opening is controlled under the Building Regulations 2010, so we set out the route in writing first. 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 Walton-on-Thames: questions
How do I get a price for roof lantern resealing in Walton-on-Thames?
Send a few photos of the lantern and the problem, with your Walton-on-Thames 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 Walton-on-Thames do you cover?
As well as Walton-on-Thames, we cover nearby Sunbury-on-Thames, Esher, Hampton, Hanworth and the rest of Surrey.
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 Walton-on-Thames
- Eaves beam and gutter repairs in Walton-on-Thames
- Flat roof junction and flashing repairs in Walton-on-Thames
- Timber roof lantern repairs in Walton-on-Thames
- Opening vent and actuator repairs in Walton-on-Thames
- Cleaning and maintenance in Walton-on-Thames
- Commercial roof lantern repairs in Walton-on-Thames
Roof lantern resealing near Walton-on-Thames
More about roof lantern resealing · All roof lantern repairs in Walton-on-Thames