In Whitehaven, 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
Why it happens
High humidity
Cooking, kettles, showers, drying washing and people all add moisture to the air.
Cold surfaces
Older glass, uninsulated kerbs and un-thermally-broken frames stay cold and collect condensation.
Covering Whitehaven 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.
We cover Whitehaven as part of Cumbria, about 35 miles from Carlisle.
If you're just outside Whitehaven, we also cover Workington (7 miles), Barrow-in-Furness (34 miles), Penrith (34 miles).
How much should it cost?
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 Whitehaven: questions
Do you cover Whitehaven?
Yes. We cover Whitehaven, including the CA28 postcode area, as part of Cumbria. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
How do I get a price for condensation diagnosis and fixes in Whitehaven?
Send a few photos of the lantern and the problem, with your Whitehaven postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
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 Whitehaven
- Roof lantern resealing in Whitehaven
- Eaves beam and gutter repairs in Whitehaven
- Slipped glass panel repairs in Whitehaven
- uPVC roof lantern repairs in Whitehaven
- Opening vent and actuator repairs in Whitehaven
- Roof lantern replacement in Whitehaven
Condensation diagnosis and fixes near Whitehaven
More about condensation diagnosis and fixes · All roof lantern repairs in Whitehaven