In Coventry, as everywhere, condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos and we'll tell you what we think has failed.
What you might be seeing
- Water on the inside of the glass on cold mornings, even without rain
- Drips after cooking, showers or drying clothes
- Black mould at the base of the lantern lining
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.
About Coventry and the CV1 area
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
Urban grime and traffic film dull glass and frames quickly; a clean and seal check makes a tired lantern look and perform much better.
From Birmingham to Coventry is roughly 17 miles — all part of the West Midlands area we cover.
Neighbouring places we cover include Kenilworth (5 miles), Bedworth (5 miles), Nuneaton (8 miles).
How much should it cost?
Typical range: £145–£495 ex VAT, which is £174–£594 with 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?
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.
Condensation diagnosis and fixes in Coventry: questions
How do I get a price for condensation diagnosis and fixes in Coventry?
Send a few photos of the lantern and the problem, with your Coventry 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 Coventry do you cover?
As well as Coventry, we cover nearby Kenilworth, Bedworth, Nuneaton, Leamington Spa and the rest of West Midlands.
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.
Other lantern repairs in Coventry
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- Flat roof junction and flashing repairs in Coventry
- Misted glass unit replacement in Coventry
- Roof lantern respraying in Coventry
- Leak investigation and inspection in Coventry
- Urgent leak make-safe in Coventry
Condensation diagnosis and fixes near Coventry
More about condensation diagnosis and fixes · All roof lantern repairs in Coventry