Gas Safety & CP12 in Southwark

Southwark's gas safety work covers Georgian terraces in Bermondsey, Victorian streets across Peckham and Camberwell, large post-war estates around Walworth, and riverside new-builds along SE1. The borough covers SE1, SE5, SE15, SE16, SE17, SE21, SE22, and SE24, including Borough, Dulwich, Elephant and Castle, Rotherhithe, and Herne Hill. Elephant and Castle redevelopment has produced lots of new high-rise stock with shared-riser pressure quirks, and Dulwich SE21 and SE22 have older copper pipework now showing pinhole failures. Thames Water serves the borough on moderately hard mains. Our Gas Safe registration is 972173 (verifiable at gassaferegister.co.uk).

The Gas Safety (Installation and Use) Regulations 1998 (GSIUR 1998), Regulation 36, places the annual inspection duty on the landlord. The Landlord Gas Safety Record (CP12 or LGSR) is issued within 28 days of the inspection, and the tenant receives their copy inside the same 28-day window. For HMOs across SE15 and SE5 we cover every appliance, including communal cookers and bedroom-flued water heaters, on a single certificate.

Each gas appliance is visually inspected for damage, combustion residue, and seal condition, working pressure is measured in kPa against the manufacturer data plate, gas tightness is verified using a calibrated digital manometer with a let-by check first, flue flow is proven with smoke pellets for open-flue appliances or an anemometer for room-sealed plant where indicated, and ventilation is calculated against BS 5440-2 for every open-flue installation in the dwelling.

Pricing excludes VAT. CP12 with up to three appliances is 125 pounds, each extra appliance is 20 pounds, CP12 plus annual boiler service combined is 210 pounds at the same visit, and a second boiler at the same visit is 95 pounds. Active gas leak: ring National Gas Emergency on 0800 111 999 first, then us for shut-off, BS 6891 carcassing repair, and re-certification.