Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos from Newcastle-under-Lyme (ST5) and we'll tell you which it is — with the price agreed in writing before any work.

What you might be seeing
- 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
Cold surfaces
Older glass, uninsulated kerbs and un-thermally-broken frames stay cold and collect condensation.
Poor ventilation
Without trickle vents, extraction or an opening vent, moist air has nowhere to go.
Roof lanterns in Newcastle-under-Lyme
Leaf fall from garden trees is the most common cause of eaves overflow on suburban extensions. If your lantern sits near trees, clearing the eaves channel each autumn prevents a lot of drips.
Newcastle-under-Lyme is around 14 miles from Stafford, and both are within our Staffordshire coverage.
Close by, we also cover Stoke-on-Trent (2 miles), Kidsgrove (6 miles), Crewe (11 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?
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 Newcastle-under-Lyme: questions
Can you repair a lantern someone else installed in Newcastle-under-Lyme?
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 Newcastle-under-Lyme do you cover?
As well as Newcastle-under-Lyme, we cover nearby Stoke-on-Trent, Kidsgrove, Crewe, Congleton and the rest of Staffordshire.
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 Newcastle-under-Lyme
- Roof lantern leak repairs in Newcastle-under-Lyme
- Roof lantern resealing in Newcastle-under-Lyme
- Flat roof junction and flashing repairs in Newcastle-under-Lyme
- Misted glass unit replacement in Newcastle-under-Lyme
- Flat rooflight and skylight repairs in Newcastle-under-Lyme
- Cleaning and maintenance in Newcastle-under-Lyme
Condensation diagnosis and fixes near Newcastle-under-Lyme
More about condensation diagnosis and fixes · All roof lantern repairs in Newcastle-under-Lyme