Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. We carry out condensation diagnosis and fixes across Warwickshire, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need condensation diagnosis and fixes
- Water on the inside of the glass on cold mornings, even without rain
- Black mould at the base of the lantern lining
- Wet window sills elsewhere in the house too
What usually causes it?
High humidity
Cooking, kettles, showers, drying washing and people all add moisture to the air.
Poor ventilation
Without trickle vents, extraction or an opening vent, moist air has nowhere to go.
Roof lanterns in Warwickshire
Lanterns in central England see a bit of everything — summer sun that ages seals and end caps, autumn leaf fall that blocks eaves, and frosty mornings that bring condensation. A yearly check covers all three.
What should you expect to pay for condensation diagnosis and fixes in Warwickshire?
Most condensation diagnosis and fixes jobs come in between £145 and £495 ex VAT (£174–£594 including VAT), per visit. 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.
Condensation diagnosis and fixes in Warwickshire: questions
Will new glass stop condensation?
Better glass raises the inner surface temperature and helps, but if the room is very humid, ventilation matters more. We'll tell you which will make the bigger difference.
Is condensation in a lantern normal?
Occasional light condensation on very cold mornings can be. Regular dripping isn't, and can damage linings and cause mould.
Which towns in Warwickshire do you cover?
All of Warwickshire, including Warwick, Nuneaton, Rugby, Leamington Spa, Bedworth, Stratford-upon-Avon. Rural and remote addresses are covered by arrangement.
How do I get a price for condensation diagnosis and fixes in Warwickshire?
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 Warwickshire
- Glazing bar and capping repairs in Warwickshire
- Upstand and kerb repairs in Warwickshire
- uPVC roof lantern repairs in Warwickshire
- Leak investigation and inspection in Warwickshire
- Roof lantern replacement in Warwickshire
- Orangery lantern repairs in Warwickshire
Nearby areas
- Condensation diagnosis and fixes in West Midlands
- Condensation diagnosis and fixes in Leicestershire
- Condensation diagnosis and fixes in Worcestershire
- Condensation diagnosis and fixes in Northamptonshire
- Condensation diagnosis and fixes in Staffordshire
More about condensation diagnosis and fixes · All roof lantern repairs in Warwickshire