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. We carry out roof lantern leak repairs across South Yorkshire, with a guide price from your photos and a fixed price in writing before any work starts.
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
- Damp patches on the ceiling a short distance from the lantern
What usually causes it?
Lifted or misaligned cappings
Top cappings clip or screw over each glazing bar. If one has lifted, been knocked or was never seated, rain gets straight under it.
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.
Roof lanterns in South Yorkshire
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.
Urban grime and traffic film dull glass and frames quickly; a clean and seal check makes a tired lantern look and perform much better.
What should you expect to pay for roof lantern leak repairs in South Yorkshire?
Typical range: £195–£595 ex VAT, which is £234–£714 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?
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 leak repairs in South Yorkshire: questions
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.
Will you show me what was wrong?
Yes. We photograph the failed detail and the finished repair and send them to you with the invoice.
Which towns in South Yorkshire do you cover?
All of South Yorkshire, including Sheffield, Rotherham, Doncaster, Barnsley. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern leak repairs in South Yorkshire?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in South Yorkshire
- Glazing bar and capping repairs in South Yorkshire
- Upstand and kerb repairs in South Yorkshire
- Flat roof junction and flashing repairs in South Yorkshire
- Cracked lantern glass replacement in South Yorkshire
- Solar control and self-cleaning glass upgrades in South Yorkshire
- Orangery lantern repairs in South Yorkshire
Nearby areas
- Roof lantern leak repairs in West Yorkshire
- Roof lantern leak repairs in Nottinghamshire
- Roof lantern leak repairs in Derbyshire
- Roof lantern leak repairs in Greater Manchester
- Roof lantern leak repairs in East Riding of Yorkshire
More about roof lantern leak repairs · All roof lantern repairs in South Yorkshire