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 Kent, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need roof lantern leak repairs
- Brown staining or bubbling paint on the plasterboard lining around the lantern
- Damp patches on the ceiling a short distance from the lantern
- A leak that only appears in wind-driven rain from one direction
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.
The kerb or roof junction
If the flat roof membrane isn't dressed high enough up the kerb, or the kerb has no fall, water sits against the joint and finds its way in under the lantern.
Roof lanterns in Kent
Sun and UV do more damage than rain on many lanterns here: brittle ridge caps, chalky finishes and hardened gaskets. They're cheap to replace before they let water in.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
- Maidstone
- Gillingham
- Chatham
- Tunbridge Wells
- Folkestone
- Margate
- Ashford, Kent
- Canterbury
- Sittingbourne
- Gravesend
- Dartford
- Ramsgate
- Dover
- Tonbridge
- Strood
- Whitstable
- Deal
- Sevenoaks
- Rochester
- Herne Bay
- Broadstairs
- Faversham
- Swanley
What should you expect to pay for roof lantern leak repairs in Kent?
Most roof lantern leak repairs jobs come in between £195 and £595 ex VAT (£234–£714 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 leak repairs in Kent: 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 Kent do you cover?
All of Kent, including Maidstone, Gillingham, Chatham, Tunbridge Wells, Folkestone, Margate. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern leak repairs in Kent?
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 Kent
- Upstand and kerb repairs in Kent
- Flat roof junction and flashing repairs in Kent
- Misted glass unit replacement in Kent
- Slipped glass panel repairs in Kent
- Urgent leak make-safe in Kent
- Orangery lantern repairs in Kent
Nearby areas
- Roof lantern leak repairs in Essex
- Roof lantern leak repairs in East Sussex
- Roof lantern leak repairs in Greater London
- Roof lantern leak repairs in Surrey
- Roof lantern leak repairs in Hertfordshire
More about roof lantern leak repairs · All roof lantern repairs in Kent