Some leaks are obvious; many aren't. We carry out leak investigation and inspection across Northamptonshire, with a guide price from your photos and a fixed price in writing before any work starts.

Signs you need leak investigation and inspection
- Previous repairs haven't stopped the leak
- The leak moves around or is intermittent
- You're not sure if it's a leak or condensation
What usually causes it?
Hidden water paths
Water can travel along bars, decks and linings before it shows.
More than one fault
Older lanterns often have two or three small failures.
Roof lanterns in Northamptonshire
Lanterns in central England see a bit of everything — summer sun that ages seals and end caps, autumn leaf fall that blocks eaves, and frosty mornings that bring condensation. A yearly check covers all three.
What should you expect to pay for leak investigation and inspection in Northamptonshire?
Most leak investigation and inspection jobs come in between £145 and £295 ex VAT (£174–£354 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.
Leak investigation and inspection in Northamptonshire: questions
What does a leak investigation cost?
Visits start from £145 ex VAT, up to around £295 for larger lanterns or longer water tests. The cost and what's included are confirmed in writing before we visit.
Is the visit cost deducted from the repair?
Ask when you book — we'll confirm in writing how the visit is charged if you go ahead with the repair.
Which towns in Northamptonshire do you cover?
All of Northamptonshire, including Northampton, Corby, Kettering, Wellingborough, Rushden, Daventry. Rural and remote addresses are covered by arrangement.
How do I get a price for leak investigation and inspection in Northamptonshire?
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 Northamptonshire
- Eaves beam and gutter repairs in Northamptonshire
- Upstand and kerb repairs in Northamptonshire
- Timber roof lantern repairs in Northamptonshire
- Opening vent and actuator repairs in Northamptonshire
- Flat rooflight and skylight repairs in Northamptonshire
- Orangery lantern repairs in Northamptonshire
Nearby areas
- Leak investigation and inspection in Rutland
- Leak investigation and inspection in Leicestershire
- Leak investigation and inspection in Bedfordshire
- Leak investigation and inspection in Warwickshire
- Leak investigation and inspection in Cambridgeshire
More about leak investigation and inspection · All roof lantern repairs in Northamptonshire