Some leaks are obvious; many aren't. Send photos from Deeside (CH5) and we'll tell you which it is — with the price agreed in writing before any work.

Is it time for 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
Why it happens
Hidden water paths
Water can travel along bars, decks and linings before it shows.
Not the lantern
Sometimes the source is the flat roof, a parapet, a gutter or a wall above.
About Deeside and the CH5 area
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.
We cover Deeside as part of Clwyd, about 11 miles from Wrexham.
If you're just outside Deeside, we also cover Buckley (3 miles), Mold (5 miles), Flint (5 miles).
How much should it cost?
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?
In Wales, 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 (as applied in Wales), so we set out the route in writing first. 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?
- 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 Deeside: questions
How do I get a price for leak investigation and inspection in Deeside?
Send a few photos of the lantern and the problem, with your Deeside postcode. We'll reply with a guide price and tell you whether a visit is needed before we can fix the price.
Which places near Deeside do you cover?
As well as Deeside, we cover nearby Buckley, Mold, Flint, Wrexham and the rest of Clwyd.
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 Deeside
- Glazing bar and capping repairs in Deeside
- Misted glass unit replacement in Deeside
- Cracked lantern glass replacement in Deeside
- Condensation diagnosis and fixes in Deeside
- Flat rooflight and skylight repairs in Deeside
- Cleaning and maintenance in Deeside
Leak investigation and inspection near Deeside
More about leak investigation and inspection · All roof lantern repairs in Deeside