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South Glamorgan · CF10

Leak investigation and inspection in Cardiff

If you're in Cardiff and dealing with a leak nobody has managed to find, we can help. We find exactly where water is getting in, water-testing where needed, and put it in writing, and confirm the fixed price in writing before we start.

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We carry out leak investigation and inspection in Cardiff and across the CF10 area. Some leaks are obvious; many aren't.

Surveyor on a step ladder inspecting the eaves of a roof lantern with a torch and moisture meter

Is it time for 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

Why it happens

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.

About Cardiff and the CF10 area

Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.

We also cover nearby Penarth (3 miles), Caerphilly (7 miles), Barry (7 miles).

What should you expect to pay in Cardiff?

Guide price, per visit£145–£295 ex VAT£174–£354 inc VAT

Typical range: £145–£295 ex VAT, which is £174–£354 with 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 Wales?

Most lantern repairs in Wales need no approval at all. Where a job turns into a replacement, the Building Regulations 2010 (as applied in Wales) apply and we confirm how the work will be signed off before we start. Listed buildings in Wales need listed building consent from the local planning authority for alterations, with Cadw guidance on historic buildings; check with the council before changing a lantern on a listed property.

How does it work?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Leak investigation and inspection in Cardiff: questions

How do I get a price for leak investigation and inspection in Cardiff?

Send a few photos of the lantern and the problem, with your Cardiff postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.

Can you repair a lantern someone else installed in Cardiff?

Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.

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.

Other lantern repairs in Cardiff

Leak investigation and inspection near Cardiff

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