Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos from Burnham-on-Sea (TA8) and we'll tell you which it is — with the price agreed in writing before any work.

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
Common causes we find
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 Burnham-on-Sea and nearby
Western and upland parts of the UK get more rain and more wind-driven rain than the east, and that's what finds weak cappings and blocked eaves first. Lanterns here benefit from a check of the bars on the most exposed face and a clear eaves channel before winter.
From Taunton to Burnham-on-Sea is roughly 16 miles — all part of the Somerset area we cover.
We also cover nearby Weston-super-Mare (7 miles), Bridgwater (8 miles), Clevedon (15 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?
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 Burnham-on-Sea: questions
Do you need to visit to price condensation diagnosis and fixes?
Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.
Which places near Burnham-on-Sea do you cover?
As well as Burnham-on-Sea, we cover nearby Weston-super-Mare, Bridgwater, Clevedon, Taunton and the rest of Somerset.
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 Burnham-on-Sea
- Glazing bar and capping repairs in Burnham-on-Sea
- Ridge and hip repairs in Burnham-on-Sea
- Slipped glass panel repairs in Burnham-on-Sea
- Solar control and self-cleaning glass upgrades in Burnham-on-Sea
- Roof lantern respraying in Burnham-on-Sea
- Orangery lantern repairs in Burnham-on-Sea
Condensation diagnosis and fixes near Burnham-on-Sea
More about condensation diagnosis and fixes · All roof lantern repairs in Burnham-on-Sea