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 Berkshire, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need roof lantern leak repairs
- 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
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 Berkshire
Leaf fall from garden trees is the most common cause of eaves overflow on suburban extensions. If your lantern sits near trees, clearing the eaves channel each autumn prevents a lot of drips.
What should you expect to pay for roof lantern leak repairs in Berkshire?
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?
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.
Roof lantern leak repairs in Berkshire: questions
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.
Will you show me what was wrong?
Yes. We photograph the failed detail and the finished repair and send them to you with the invoice.
Which towns in Berkshire do you cover?
All of Berkshire, including Reading, Slough, Bracknell, Maidenhead, Wokingham, Newbury. Rural and remote addresses are covered by arrangement.
How do I get a price for roof lantern leak repairs in Berkshire?
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 Berkshire
- Eaves beam and gutter repairs in Berkshire
- Upstand and kerb repairs in Berkshire
- Flat roof junction and flashing repairs in Berkshire
- Misted glass unit replacement in Berkshire
- Cleaning and maintenance in Berkshire
- Urgent leak make-safe in Berkshire
Nearby areas
- Roof lantern leak repairs in Surrey
- Roof lantern leak repairs in Buckinghamshire
- Roof lantern leak repairs in Hampshire
- Roof lantern leak repairs in Oxfordshire
- Roof lantern leak repairs in Greater London
More about roof lantern leak repairs · All roof lantern repairs in Berkshire