Gas Safety & CP12 in Harrow

Harrow is classic Metroland: 1930s semis dominate across HA1, HA2, HA3, HA4, HA5, HA7, and HA8, with Edwardian streets in Pinner and Harrow-on-the-Hill plus post-war estates in Wealdstone. Stanmore, Edgware, Kenton, Rayners Lane, and Hatch End complete the footprint. Original copper pipework on gallon-water loft tanks is still in service across much of the borough's pre-war stock, which means gas tightness tests sometimes surface decade-old jointing issues that need addressing before certification. Affinity Water supplies hard mains throughout. Our Gas Safe registration is 972173 (verifiable at gassaferegister.co.uk).

The Gas Safety (Installation and Use) Regulations 1998 (GSIUR 1998), Regulation 36, sets the landlord's annual inspection duty. The Landlord Gas Safety Record (CP12 or LGSR) is issued within 28 days of the check and the tenant receives their copy inside the same 28-day window. New tenants get a copy before they take occupation.

Each appliance is visually inspected for damage, corrosion, and combustion residue, working pressure is measured in kPa against the manufacturer data plate, gas tightness is verified using a calibrated digital manometer, flue flow is proven with smoke pellets for open-flue appliances and an anemometer for room-sealed appliances where the situation calls for it, and ventilation is calculated against BS 5440-2 for every open-flue installation against the dwelling's habitable volume. Where the inspection surfaces issues that fail the test, we hand the certificate with the appliance identified as Immediately Dangerous or At Risk and quote separately for the fix.

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 repair, and re-certification.