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 from Gainsborough (DN21) and we'll tell you which it is — with the price agreed in writing before any work.
What you might be seeing
- Rotten timber throughout
- Repeated leaks after previous repairs
- Single-glazed or very poor thermal performance
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 Gainsborough and the DN21 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.
From Lincoln to Gainsborough is roughly 14 miles — all part of the Lincolnshire area we cover.
If you're just outside Gainsborough, we also cover Retford (8 miles), Scunthorpe (14 miles), Lincoln (14 miles).
How much should it cost?
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?
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 replacement in Gainsborough: questions
How do I get a price for roof lantern replacement in Gainsborough?
Send a few photos of the lantern and the problem, with your Gainsborough 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 Gainsborough?
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.
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 Gainsborough
- Glazing bar and capping repairs in Gainsborough
- Eaves beam and gutter repairs in Gainsborough
- Solar control and self-cleaning glass upgrades in Gainsborough
- Condensation diagnosis and fixes in Gainsborough
- Timber roof lantern repairs in Gainsborough
- Urgent leak make-safe in Gainsborough
Roof lantern replacement near Gainsborough
More about roof lantern replacement · All roof lantern repairs in Gainsborough