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. Send photos from Braintree (CM7) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- Drips from a glazing bar or the eaves beam when it rains
- Damp patches on the ceiling a short distance from the lantern
- A leak that only appears in wind-driven rain from one direction
Common causes we find
Lifted or misaligned cappings
Top cappings clip or screw over each glazing bar. If one has lifted, been knocked or was never seated, rain gets straight under it.
The kerb or roof junction
If the flat roof membrane isn't dressed high enough up the kerb, or the kerb has no fall, water sits against the joint and finds its way in under the lantern.
Covering Braintree and nearby
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.
We cover Braintree as part of Essex, about 10 miles from Chelmsford.
Neighbouring places we cover include Witham (7 miles), Chelmsford (10 miles), Maldon (11 miles).
What should you expect to pay in Braintree?
Typical range: £195–£595 ex VAT, which is £234–£714 with 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 Braintree: questions
How do I get a price for roof lantern leak repairs in Braintree?
Send a few photos of the lantern and the problem, with your Braintree postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Braintree do you cover?
As well as Braintree, we cover nearby Witham, Chelmsford, Maldon, Sudbury and the rest of Essex.
How much does a roof lantern leak repair cost?
Most leak repairs fall between £195 and £595 ex VAT for a standard lantern with ladder access. The fixed price is confirmed in writing before any work starts.
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.
Other lantern repairs in Braintree
- Glazing bar and capping repairs in Braintree
- Ridge and hip repairs in Braintree
- Cracked lantern glass replacement in Braintree
- uPVC roof lantern repairs in Braintree
- Opening vent and actuator repairs in Braintree
- Cleaning and maintenance in Braintree
Roof lantern leak repairs near Braintree
More about roof lantern leak repairs · All roof lantern repairs in Braintree