Gas Safety & CP12 in Waltham Forest

Waltham Forest's housing stock has substantial pre-war copper pipework still in service, particularly the Chingford E4 1930s semis where original galvanised steel cold-water pipe is still common. That feeds directly into the tightness-test stage of every CP12. The borough covers E4, E10, E11, E17, and IG8, including Walthamstow, Leyton, Leytonstone, Highams Park, Wood Street, and Whipps Cross. Victorian and Edwardian terraces dominate Walthamstow and Leytonstone, 1930s semis run through Chingford, and suburban housing fills the rest of E4. Thames Water serves the borough on hard mains. Our Gas Safe registration is 972173 (verifiable at gassaferegister.co.uk).

Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 (GSIUR 1998) 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. New tenants must have a copy before they take occupation.

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 tested 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, and ventilation is calculated against BS 5440-2 for every open-flue installation against the dwelling's habitable volume.

Pricing excludes VAT. CP12 with up to three appliances is 125 pounds, each extra appliance is 20 pounds, the CP12 and annual boiler service combination 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.