We carry out leak investigation and inspection in Nailsea and across the BS48 area. Some leaks are obvious; many aren't.

What you might be seeing
- 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
Common causes we find
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.
Covering Nailsea and nearby
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.
From Taunton to Nailsea is roughly 32 miles — all part of the Somerset area we cover.
We also cover nearby Portishead (3 miles), Clevedon (4 miles), Bristol (7 miles).
Guide prices for leak investigation and inspection in Nailsea
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?
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 Nailsea: questions
Do you cover Nailsea?
Yes. We cover Nailsea, including the BS48 postcode area, as part of Somerset. Send photos by WhatsApp or the form for a free guide price, and we'll confirm the fixed price in writing before any work starts.
Which places near Nailsea do you cover?
As well as Nailsea, we cover nearby Portishead, Clevedon, Bristol, Weston-super-Mare and the rest of Somerset.
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 Nailsea
- Ridge and hip repairs in Nailsea
- Eaves beam and gutter repairs in Nailsea
- Misted glass unit replacement in Nailsea
- Condensation diagnosis and fixes in Nailsea
- Flat rooflight and skylight repairs in Nailsea
- Commercial roof lantern repairs in Nailsea
Leak investigation and inspection near Nailsea
More about leak investigation and inspection · All roof lantern repairs in Nailsea