Coverage
All 32 London boroughs
Every borough leaks differently. Georgian terraces hide pipework under original floorboards, mansion blocks share risers, new-build towers run boosted mains — and we work across all of it, every day. That is all 32 London boroughs plus the City of London, 33 areas in total. Choose your borough for local detail, or just get in touch with your postcode.
Kensington and Chelsea
Kensington · Chelsea · Notting Hill · Earls Court · Holland Park
Beyond the boundary
And everywhere else inside the M25
London does not stop at the borough boundary and neither do we. The motorway takes in a slice of five counties, and the housing there leaks differently again — more interwar semis with buried supply runs, more properties on a water company that is not Thames. If you are on this list, you are in our area.
Essex
The M25 corridor through Epping Forest and Brentwood, and the Thames-side towns down to Grays.
Loughton · Buckhurst Hill · Chigwell · Epping · Brentwood · Grays · Thurrock · Upminster fringe
Hertfordshire
The southern Herts belt, where a lot of the housing stock is interwar semi-detached with buried supply runs.
Watford · Borehamwood · Radlett · Potters Bar · Cheshunt · Waltham Cross · Rickmansworth · Bushey
Surrey
The stretch inside and along the M25 from Staines round to Epsom, including the Thames-side towns.
Staines · Egham · Weybridge · Esher · Cobham · Epsom · Leatherhead · Sunbury
Kent
North-west Kent, where the boundary with south-east London runs through continuous suburb.
Dartford · Swanley · Crayford fringe · Longfield · Bexley border · Sevenoaks edge
Buckinghamshire
The short stretch of Bucks the motorway clips, west of Uxbridge.
Iver · Denham · Gerrards Cross · Chalfont St Peter
Not an exhaustive list — the M25 cuts through counties rather than round them, so if your town sits near the motorway and is not named here, say the postcode when you call.