Finlock gutters — concrete gutters cast as part of the building, typical of UK homes built between the 1950s and 1970s — develop cracks, leaks and cold-bridging as they age. We repair them with an EPDM rubber lining: a one-piece, flexible, fully-sealed membrane bonded into the existing gutter. No expensive concrete strip-out, no roof-tile removal.
How to spot failing Finlock gutters
- Damp patches on internal ceilings or walls below the eaves
- Black mould or peeling paint inside upstairs bedrooms
- Visible cracks running along the concrete gutter
- Cold bridging — the wall feels noticeably cold near the eaves in winter
- Drips, overflow, or staining down the external wall during rain
- Rust streaks where the steel reinforcement inside the gutter has corroded
Why EPDM rubber lining is the right fix
- One-piece membrane — no joints to fail along the gutter run
- Flexible — handles concrete movement without cracking
- Long lifespan — 30 to 50 year service life when correctly installed
- Cheaper than replacement — typically 40 to 60% the cost of a full Finlock strip-out
- Less disruption — no heavy scaffolding strip-out, no removal of roof tiles
- Solves the cold bridging — insulation can be added under the EPDM if needed
Our process
- Full inspection and survey — including internal damp assessment
- Concrete repair where needed — patching, levelling, dealing with reinforcement corrosion
- Surface clean and primer
- EPDM membrane laid in a single piece, bonded and dressed into the downpipe outlets
- New external trim, finishing and clear-up
- Workmanship guarantee in writing
Areas we cover
Chippenham, Corsham, Bath, Melksham, Calne, Trowbridge, Devizes, Bradford-on-Avon and surrounding Wiltshire towns and villages — wherever post-war housing put Finlock gutters on the eaves.
Free no-obligation quote
Call 07546 781605 for a same-week site visit, or request a callback. We'll inspect inside and out, explain the repair plan, and quote in writing with a fixed price.