We carry out condensation diagnosis and fixes in Sudbury and across the CO10 area. Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens.

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
- 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.
Cold surfaces
Older glass, uninsulated kerbs and un-thermally-broken frames stay cold and collect condensation.
Roof lanterns in Sudbury
Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.
Near the coast, salt in the air is hard on aluminium finishes and fixings; washing the frame occasionally and touching in chips keeps corrosion away.
From Ipswich to Sudbury is roughly 18 miles — all part of the Suffolk area we cover.
Neighbouring places we cover include Colchester (13 miles), Haverhill (13 miles), Braintree (13 miles).
Guide prices for condensation diagnosis and fixes in Sudbury
Guide price for condensation diagnosis and fixes: £145–£495 ex VAT (£174–£594 inc 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 Sudbury: questions
Do you cover Sudbury?
Yes. We cover Sudbury, including the CO10 postcode area, as part of Suffolk. 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 Sudbury?
Send a few photos of the lantern and the problem, with your Sudbury 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 Sudbury
- Glazing bar and capping repairs in Sudbury
- Slipped glass panel repairs in Sudbury
- Opening vent and actuator repairs in Sudbury
- Roof lantern respraying in Sudbury
- Roof lantern replacement in Sudbury
- Orangery lantern repairs in Sudbury
Condensation diagnosis and fixes near Sudbury
More about condensation diagnosis and fixes · All roof lantern repairs in Sudbury