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

Signs you need roof lantern leak repairs
- Water running down the inside face of the glass
- 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?
Failed silicone or glazing tape
UV and thermal movement break down the seal between capping, gasket and glass. Once a gap opens, water tracks along the bar and drops at the lowest point.
Blocked eaves drainage
Most lanterns collect water in a channel inside the eaves beam and let it out through weep slots. Leaves, moss and grit block the slots and the channel overflows indoors.
Roof lanterns in Lincolnshire
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
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.
What should you expect to pay for roof lantern leak repairs in Lincolnshire?
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?
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 leak repairs in Lincolnshire: 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.
Do I need to be home?
If we need to water-test or check the inside of the lantern, yes. Exterior-only work can sometimes be done with access arranged in advance.
Which towns in Lincolnshire do you cover?
All of Lincolnshire, including Lincoln, Grimsby, Scunthorpe, Boston, Grantham, Cleethorpes. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern leak repairs in Lincolnshire?
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 Lincolnshire
- Roof lantern resealing in Lincolnshire
- Slipped glass panel repairs in Lincolnshire
- Aluminium roof lantern repairs in Lincolnshire
- Opening vent and actuator repairs in Lincolnshire
- Flat rooflight and skylight repairs in Lincolnshire
- Roof lantern replacement in Lincolnshire
Nearby areas
- Roof lantern leak repairs in Nottinghamshire
- Roof lantern leak repairs in Rutland
- Roof lantern leak repairs in East Riding of Yorkshire
- Roof lantern leak repairs in South Yorkshire
- Roof lantern leak repairs in Derbyshire
More about roof lantern leak repairs · All roof lantern repairs in Lincolnshire