Some leaks are obvious; many aren't. We carry out leak investigation and inspection across Derbyshire, 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 need a written report for a landlord, insurer or builder
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 Derbyshire
Snow and ice sitting at the eaves can block a lantern's drainage and push water back under the glass as it melts. If your lantern leaks after a thaw rather than after rain, tell us — it points to the eaves and kerb.
What should you expect to pay for leak investigation and inspection in Derbyshire?
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?
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.
Leak investigation and inspection in Derbyshire: 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.
Do you provide a report?
Yes, with photos and findings, which is useful for landlords, insurers and disputes with installers.
Which towns in Derbyshire do you cover?
All of Derbyshire, including Derby, Chesterfield, Long Eaton, Ilkeston, Swadlincote, Staveley. Rural and remote addresses are covered by arrangement.
How do I get a price for leak investigation and inspection in Derbyshire?
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 Derbyshire
- Roof lantern leak repairs in Derbyshire
- Upstand and kerb repairs in Derbyshire
- Flat roof junction and flashing repairs in Derbyshire
- Misted glass unit replacement in Derbyshire
- Slipped glass panel repairs in Derbyshire
- Roof lantern respraying in Derbyshire
Nearby areas
- Leak investigation and inspection in Nottinghamshire
- Leak investigation and inspection in South Yorkshire
- Leak investigation and inspection in Staffordshire
- Leak investigation and inspection in Leicestershire
- Leak investigation and inspection in Rutland
More about leak investigation and inspection · All roof lantern repairs in Derbyshire