Gas Safety in Three Rivers

Three Rivers covers Rickmansworth, Chorleywood, Mill End, and Croxley Green, sitting just outside the M25 at junction 17. Postcodes are WD3 and WD4. Affinity Water (Veolia Central) supplies moderately hard mains at around 280 ppm CaCO3, which feeds into combi heat-exchanger service intervals. The conservation areas across Chorleywood and Loudwater restrict external pipework which means follow-up carcassing under BS 6891 needs route survey before quote. We dispatch direct from NW10 via M25 J17 with target arrival 38 minutes from depot to property. 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 whether the property sits inside or outside the M25 envelope. 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. Renewals are dated against your existing certificate so the rolling 12-month compliance cycle never drifts.

Each gas appliance is visually inspected for damage and combustion residue, 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, 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.