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Northamptonshire · NN17

Condensation diagnosis and fixes in Corby

Got condensation dripping from the lantern in Corby? We work out whether it's condensation or a leak, then fix the cause — ventilation, kerb or glass. Send photos for a free guide price — you'll get a fixed price in writing before any work starts.

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We carry out condensation diagnosis and fixes in Corby and across the NN17 area. Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens.

Condensation droplets on the inside of roof lantern glass on a cold morning

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?

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.

About Corby and the NN17 area

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.

Corby is around 19 miles from Northampton, and both are within our Northamptonshire coverage.

We also cover nearby Uppingham (6 miles), Kettering (7 miles), Market Harborough (10 miles).

What should you expect to pay in Corby?

Guide price, per visit£145–£495 ex VAT£174–£594 inc VAT

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?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Condensation diagnosis and fixes in Corby: questions

How do I get a price for condensation diagnosis and fixes in Corby?

Send a few photos of the lantern and the problem, with your Corby postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.

Which places near Corby do you cover?

As well as Corby, we cover nearby Uppingham, Kettering, Market Harborough, Oakham and the rest of Northamptonshire.

Will new glass stop condensation?

Better glass raises the inner surface temperature and helps, but if the room is very humid, ventilation matters more. We'll tell you which will make the bigger difference.

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 Corby

Condensation diagnosis and fixes near Corby

More about condensation diagnosis and fixes · All roof lantern repairs in Corby

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