We carry out condensation diagnosis and fixes in Clacton-on-Sea and across the CO15 area. Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens.

Is it time for 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.
Covering Clacton-on-Sea and nearby
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
Clacton-on-Sea is around 30 miles from Chelmsford, and both are within our Essex coverage.
Close by, we also cover Harwich (12 miles), Colchester (13 miles), Felixstowe (15 miles).
Guide prices for condensation diagnosis and fixes in Clacton-on-Sea
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?
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 Clacton-on-Sea: questions
Can you repair a lantern someone else installed in Clacton-on-Sea?
Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.
Which places near Clacton-on-Sea do you cover?
As well as Clacton-on-Sea, we cover nearby Harwich, Colchester, Felixstowe, Ipswich and the rest of Essex.
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.
Other lantern repairs in Clacton-on-Sea
- Roof lantern resealing in Clacton-on-Sea
- Slipped glass panel repairs in Clacton-on-Sea
- Aluminium roof lantern repairs in Clacton-on-Sea
- uPVC roof lantern repairs in Clacton-on-Sea
- Leak investigation and inspection in Clacton-on-Sea
- Commercial roof lantern repairs in Clacton-on-Sea
Condensation diagnosis and fixes near Clacton-on-Sea
More about condensation diagnosis and fixes · All roof lantern repairs in Clacton-on-Sea