Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. Send photos from Mansfield (NG18) and we'll tell you which it is — with the price agreed in writing before any work.

Is it time for condensation diagnosis and fixes?
- Drips after cooking, showers or drying clothes
- Black mould at the base of the lantern lining
- Wet window sills elsewhere in the house too
Why it happens
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 Mansfield
Most inland lantern leaks aren't storm damage; they're usually tired sealant, a lifted capping or blocked eaves drainage. All three are quick to find and fix once you know where to look.
From Nottingham to Mansfield is roughly 13 miles — all part of the Nottinghamshire area we cover.
Neighbouring places we cover include Sutton-in-Ashfield (3 miles), Kirkby-in-Ashfield (3 miles), Hucknall (7 miles).
Guide prices for condensation diagnosis and fixes in Mansfield
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 Mansfield: 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 Mansfield do you cover?
As well as Mansfield, we cover nearby Sutton-in-Ashfield, Kirkby-in-Ashfield, Hucknall, Alfreton and the rest of Nottinghamshire.
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 Mansfield
- Roof lantern resealing in Mansfield
- Upstand and kerb repairs in Mansfield
- Flat roof junction and flashing repairs in Mansfield
- Opening vent and actuator repairs in Mansfield
- Cleaning and maintenance in Mansfield
- Urgent leak make-safe in Mansfield
Condensation diagnosis and fixes near Mansfield
More about condensation diagnosis and fixes · All roof lantern repairs in Mansfield