We carry out roof lantern leak repairs in Tonypandy and across the CF40 area. A roof lantern leak is almost always a failed seal, a lifted capping, blocked eaves drainage or a problem where the kerb meets the flat roof — not a failed lantern.
Signs you need roof lantern leak repairs
- Drips from a glazing bar or the eaves beam when it rains
- Brown staining or bubbling paint on the plasterboard lining around the lantern
- Water running down the inside face of the glass
Common causes we find
Failed silicone or glazing tape
UV and thermal movement break down the seal between capping, gasket and glass. Once a gap opens, water tracks along the bar and drops at the lowest point.
Blocked eaves drainage
Most lanterns collect water in a channel inside the eaves beam and let it out through weep slots. Leaves, moss and grit block the slots and the channel overflows indoors.
Covering Tonypandy and nearby
Wind-driven rain is the real test of a roof lantern, and the wetter west sees plenty of it. Leaks that appear only in a storm from one direction usually point to the cappings or eaves on that face — a useful clue when you send us photos.
From Bridgend to Tonypandy is roughly 10 miles — all part of the Mid Glamorgan area we cover.
We also cover nearby Rhondda (3 miles), Pontypridd (5 miles), Aberdare (6 miles).
How much should it cost?
Guide price for roof lantern leak repairs: £195–£595 ex VAT (£234–£714 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 Wales?
In Wales, 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 (as applied in Wales), so we set out the route in writing first. 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 leak repairs in Tonypandy: questions
How do I get a price for roof lantern leak repairs in Tonypandy?
Send a few photos of the lantern and the problem, with your Tonypandy 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 Tonypandy do you cover?
As well as Tonypandy, we cover nearby Rhondda, Pontypridd, Aberdare, Maesteg and the rest of Mid Glamorgan.
How much does a roof lantern leak repair cost?
Most leak repairs fall between £195 and £595 ex VAT for a standard lantern with ladder access. The fixed price is confirmed in writing before any work starts.
Can you fix the leak in the rain?
We can make the lantern safe in wet weather, but sealants and tapes need a dry, clean surface to bond, so permanent repairs are done in a dry window.
Other lantern repairs in Tonypandy
- Roof lantern resealing in Tonypandy
- Misted glass unit replacement in Tonypandy
- Timber roof lantern repairs in Tonypandy
- Flat rooflight and skylight repairs in Tonypandy
- Roof lantern replacement in Tonypandy
- Commercial roof lantern repairs in Tonypandy
Roof lantern leak repairs near Tonypandy
More about roof lantern leak repairs · All roof lantern repairs in Tonypandy