We carry out roof lantern replacement in Seaham and across the SR7 area. We're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed.

What you might be seeing
- Several misted or cracked units
- Rotten timber throughout
- Repeated leaks after previous repairs
Common causes we find
Age
Older lanterns can't be brought up to modern performance with repairs alone.
Structural damage
Impact or movement distorts the frame.
About Seaham and the SR7 area
Colder winters mean more frosty mornings, and a roof lantern is often the coldest surface in a warm kitchen — so condensation is as common as genuine leaks. We check which you've got before quoting.
From Durham to Seaham is roughly 10 miles — all part of the County Durham area we cover.
Neighbouring places we cover include Houghton-le-Spring (5 miles), Sunderland (5 miles), Peterlee (5 miles).
Guide prices for roof lantern replacement in Seaham
Typical range: £1,995–£4,995 ex VAT, which is £2,394–£5,994 with 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?
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 replacement in Seaham: questions
Do you cover Seaham?
Yes. We cover Seaham, including the SR7 postcode area, as part of County Durham. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for roof lantern replacement in Seaham?
Send a few photos of the lantern and the problem, with your Seaham postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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.
Will you tell me if repair is enough?
Yes. We'd rather do a repair that works than sell a lantern you don't need.
Other lantern repairs in Seaham
- Ridge and hip repairs in Seaham
- Flat roof junction and flashing repairs in Seaham
- Misted glass unit replacement in Seaham
- Solar control and self-cleaning glass upgrades in Seaham
- Roof lantern respraying in Seaham
- Flat rooflight and skylight repairs in Seaham
Roof lantern replacement near Seaham
More about roof lantern replacement · All roof lantern repairs in Seaham