Some leaks are obvious; many aren't. We carry out leak investigation and inspection across Northumberland, 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?
More than one fault
Older lanterns often have two or three small failures.
Not the lantern
Sometimes the source is the flat roof, a parapet, a gutter or a wall above.
Roof lanterns in Northumberland
Colder winters mean more frosty mornings, and a roof lantern is often the coldest surface in a warm kitchen — so condensation is as common as genuine leaks. We check which you've got before quoting.
Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.
What should you expect to pay for leak investigation and inspection in Northumberland?
Guide price for leak investigation and inspection: £145–£295 ex VAT (£174–£354 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?
Most lantern repairs in England need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 apply and we confirm how the work will be signed off before we start. 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 Northumberland: questions
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.
Do you provide a report?
Yes, with photos and findings, which is useful for landlords, insurers and disputes with installers.
Which towns in Northumberland do you cover?
All of Northumberland, including Morpeth, Blyth, Cramlington, Ashington, Hexham. Rural and remote addresses are covered by arrangement.
How do I get a price for leak investigation and inspection in Northumberland?
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 Northumberland
- Ridge and hip repairs in Northumberland
- Roof lantern respraying in Northumberland
- Flat rooflight and skylight repairs in Northumberland
- Cleaning and maintenance in Northumberland
- Urgent leak make-safe in Northumberland
- Roof lantern replacement in Northumberland
Nearby areas
- Leak investigation and inspection in Tyne and Wear
- Leak investigation and inspection in County Durham
- Leak investigation and inspection in North Yorkshire
- Leak investigation and inspection in Cumbria
- Leak investigation and inspection in West Yorkshire
More about leak investigation and inspection · All roof lantern repairs in Northumberland