We carry out roof lantern resealing in Thornaby-on-Tees and across the TS17 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.
Signs you need roof lantern resealing
- Cracked, split or shrunken sealant along the bars
- Black mould or dirt lines trapped in old silicone
- 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.
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 Thornaby-on-Tees and the TS17 area
Freeze-thaw cycles open up tired sealant and gaskets faster than mild weather does. A spring check after a hard winter catches most problems before they leak.
If you're just outside Thornaby-on-Tees, we also cover Stockton-on-Tees (3 miles), Billingham (4 miles), Middlesbrough (4 miles).
Guide prices for roof lantern resealing in Thornaby-on-Tees
Guide price for roof lantern resealing: £245–£495 ex VAT (£294–£594 inc 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?
Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. 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 Thornaby-on-Tees: questions
Do you cover Thornaby-on-Tees?
Yes. We cover Thornaby-on-Tees, including the TS17 postcode area, as part of North Yorkshire. 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 Thornaby-on-Tees do you cover?
As well as Thornaby-on-Tees, we cover nearby Stockton-on-Tees, Billingham, Middlesbrough, Darlington and the rest of North Yorkshire.
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 Thornaby-on-Tees
- Roof lantern leak repairs in Thornaby-on-Tees
- Glazing bar and capping repairs in Thornaby-on-Tees
- Slipped glass panel repairs in Thornaby-on-Tees
- Timber roof lantern repairs in Thornaby-on-Tees
- Opening vent and actuator repairs in Thornaby-on-Tees
- Commercial roof lantern repairs in Thornaby-on-Tees
Roof lantern resealing near Thornaby-on-Tees
More about roof lantern resealing · All roof lantern repairs in Thornaby-on-Tees