We carry out flat rooflight and skylight repairs in Seaford and across the BN25 area. Flat rooflights fail in the same places as lanterns: the seal to the upstand, the roof junction and the glass unit.

What you might be seeing
- Water around the rooflight edge
- Misted glass
- Ponding on the glass (not enough fall)
Common causes we find
No fall
Flat glass needs a slight fall to shed water; ponding stresses seals.
Unit failure
Edge seals fail and the unit mists.
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.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
We cover Seaford as part of East Sussex, about 11 miles from Brighton.
We also cover nearby Eastbourne (8 miles), Hailsham (9 miles), Brighton (11 miles).
How much should it cost?
Typical range: £195–£595 ex VAT, which is £234–£714 with VAT, per rooflight. 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.
Flat rooflight and skylight repairs in Seaford: questions
How do I get a price for flat rooflight and skylight repairs 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.
What does a flat rooflight repair cost?
Usually £195–£595 ex VAT, confirmed in writing before work starts.
Can you fix a Velux-style roof window?
Our focus is flat rooflights and lanterns; pitched roof windows are a different trade and we'll say so if that's what you have.
Other lantern repairs in Seaford
- Glazing bar and capping repairs in Seaford
- Ridge and hip repairs in Seaford
- Flat roof junction and flashing repairs in Seaford
- Misted glass unit replacement in Seaford
- Condensation diagnosis and fixes in Seaford
- Leak investigation and inspection in Seaford
Flat rooflight and skylight repairs near Seaford
More about flat rooflight and skylight repairs · All roof lantern repairs in Seaford