In Seaford, as everywhere, we're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. Send photos and we'll tell you what we think has failed.

Is it time for roof lantern replacement?
- Several misted or cracked units
- Rotten timber throughout
- Repeated leaks after previous repairs
What usually causes it?
Structural damage
Impact or movement distorts the frame.
Rot
Timber lanterns left unmaintained.
About Seaford and the BN25 area
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.
Seaford is around 11 miles from Brighton, and both are within our East Sussex coverage.
We also cover nearby Eastbourne (8 miles), Hailsham (9 miles), Brighton (11 miles).
What should you expect to pay in Seaford?
Most roof lantern replacement jobs come in between £1,995 and £4,995 ex VAT (£2,394–£5,994 including VAT), supplied and fitted. 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 replacement in Seaford: questions
How do I get a price for roof lantern replacement in Seaford?
Send a few photos of the lantern and the problem, with your Seaford postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Can you repair a lantern someone else installed in Seaford?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
How much does a replacement roof lantern cost?
Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.
Can the new lantern use the existing opening?
Usually, if the kerb is sound and the size suits a standard or made-to-measure lantern.
Other lantern repairs in Seaford
- Flat roof junction and flashing repairs in Seaford
- Slipped glass panel repairs in Seaford
- Solar control and self-cleaning glass upgrades in Seaford
- Condensation diagnosis and fixes in Seaford
- Timber roof lantern repairs in Seaford
- Aluminium roof lantern repairs in Seaford
Roof lantern replacement near Seaford
More about roof lantern replacement · All roof lantern repairs in Seaford