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 Surrey, 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
- 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.
Roof lanterns in Surrey
Drier, sunnier parts of the UK are kinder to seals than the wet west, but strong sun ages sealant, gaskets and plastic end caps, and south- or west-facing lanterns can make rooms very warm. Solar control glass and an opening vent help.
- Guildford
- Woking
- Esher
- Redhill
- Staines
- Banstead
- Leatherhead
- Ewell
- Farnham
- Epsom
- Camberley
- Egham
- Sunbury-on-Thames
- Ashford, Surrey
- Walton-on-Thames
- Godalming
- Reigate
- Horley
- Caterham
What should you expect to pay for condensation diagnosis and fixes in Surrey?
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 Surrey: questions
What does a condensation visit cost?
Diagnosis visits start from £145 ex VAT. Any fixes are priced separately and confirmed in writing before work starts.
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 Surrey do you cover?
All of Surrey, including Guildford, Woking, Esher, Redhill, Staines, Banstead. Rural and remote addresses are covered by arrangement.
How do I get a price for condensation diagnosis and fixes in Surrey?
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 Surrey
- Roof lantern leak repairs in Surrey
- Eaves beam and gutter repairs in Surrey
- Cracked lantern glass replacement in Surrey
- Opening vent and actuator repairs in Surrey
- Leak investigation and inspection in Surrey
- Cleaning and maintenance in Surrey
Nearby areas
- Condensation diagnosis and fixes in Greater London
- Condensation diagnosis and fixes in Berkshire
- Condensation diagnosis and fixes in West Sussex
- Condensation diagnosis and fixes in Hertfordshire
- Condensation diagnosis and fixes in Buckinghamshire
More about condensation diagnosis and fixes · All roof lantern repairs in Surrey