Condensation forms when warm, humid air meets a cold surface — and a roof lantern is the coldest surface in many kitchens. We carry out condensation diagnosis and fixes across Gloucestershire, with a guide price from your photos and a fixed price in writing before any work starts.
Signs you need 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?
High humidity
Cooking, kettles, showers, drying washing and people all add moisture to the air.
Poor ventilation
Without trickle vents, extraction or an opening vent, moist air has nowhere to go.
Roof lanterns in Gloucestershire
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.
What should you expect to pay for condensation diagnosis and fixes in Gloucestershire?
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 Gloucestershire: questions
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.
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.
Which towns in Gloucestershire do you cover?
All of Gloucestershire, including Gloucester, Cheltenham, Stroud, Yate, Tewkesbury, Cirencester. Rural and remote addresses are covered by arrangement.
How do I get a price for condensation diagnosis and fixes in Gloucestershire?
Send a few photos of the lantern and the problem with your postcode, by WhatsApp or the form. We reply with a guide price and confirm the fixed price in writing before any work starts.
Other repairs in Gloucestershire
- Eaves beam and gutter repairs in Gloucestershire
- Flat roof junction and flashing repairs in Gloucestershire
- Opening vent and actuator repairs in Gloucestershire
- Leak investigation and inspection in Gloucestershire
- Urgent leak make-safe in Gloucestershire
- Orangery lantern repairs in Gloucestershire
Nearby areas
- Condensation diagnosis and fixes in Herefordshire
- Condensation diagnosis and fixes in Bristol
- Condensation diagnosis and fixes in Worcestershire
- Condensation diagnosis and fixes in Wiltshire
- Condensation diagnosis and fixes in Oxfordshire
More about condensation diagnosis and fixes · All roof lantern repairs in Gloucestershire