Gas Safety Certificate Kingston upon Thames — from £64.99

What is a Gas Safety Certificate (CP12)?

A Gas Safety Certificate, formally known as a CP12, is a document confirming that all gas appliances, flues and pipework in a rental property have been inspected by a Gas Safe Registered engineer and found to be safe. The engineer checks each appliance for correct operation, adequate ventilation, secure flue connections and correct gas pressure, and lists every appliance on the certificate along with its result.

Every private landlord in England has been legally required to hold a valid CP12 and renew it every 12 months since the Gas Safety (Installation and Use) Regulations 1998 came into force. This national duty applies in Kingston upon Thames as it does across England, and an HMO licence can add its own conditions on top.

Gas safety in Kingston upon Thames — local property context

In 2012 the council said most of its housing was two storeys high, so many shared houses fell outside the mandatory scheme of the time. That scheme covered only homes of three or more storeys. The 1930s are the largest single building era, at 28.0% of the borough's 70,420 council tax properties (VOA 2025), and semi-detached houses are the most common home type (Census 2021).

Census 2021 counted 17,911 Kingston households renting privately, and the council's register listed 447 licensed HMOs on 10 October 2026. Our Gas Safe registered engineers are experienced with the boilers, gas fires and appliances typically found in properties across the KT2, KT3, KT6, KT5, KT9, KT1, KT4 postcode areas, and regularly carry out CP12 inspections across Kingston upon Thames for private landlords, letting agents and HMO operators.

Gas safety in Kingston HMOs: servicing as well as the annual check

Kingston's HMO standards (December 2023) ask for more than the yearly safety check: "All gas appliances should be serviced and maintained in line with manufacturers' recommendations." A gas safety check confirms an appliance is safe to use but is not a service, so keep each appliance's service record with the gas safety certificate.

Households who own their home

60.9% (London 45.2%)

Census 2021

Households in purpose-built flats

29.8% (London 40.3%)

Census 2021

Homes built in 2000 or later

12.0% (London 17.9%)

VOA 2025

Households heated by mains gas only

78.1% (London 70.5%)

Census 2021

Gas Safety Certificate pricing in Kingston upon Thames

Fixed pricing by number of gas appliances. The same prices apply in Kingston upon Thames as across all other London boroughs — no London surcharge. The only location-based fee is the £20 Congestion Charge Zone addition for central London properties.

Want the full service page? See our full Gas Safety Certificate page →

What's included from £64.99

Every gas safety check we carry out in Kingston upon Thames covers the complete inspection at no extra cost beyond the price shown.

• Inspection of every gas appliance — boiler, hob, cooker and gas fire
• Flue flow and spillage testing on every appliance with a flue
• Gas pressure and burner pressure checks
• Visual check of pipework, joints and fittings for leaks or damage
• Ventilation adequacy check for every gas appliance
• Gas Safe registered engineer — fully qualified and independently assessed
• Signed CP12 certificate emailed within 24 hours
• Immediate isolation of any appliance found to be unsafe

Other landlord certificates in Kingston upon Thames

We also cover these landlord certificates in Kingston upon Thames:

Managing an HMO in Kingston upon Thames? See all HMO compliance certificates →

Gas Safety Certificate in nearby boroughs

We cover all 33 London boroughs. See Gas Safety Certificate pricing and booking for areas near Kingston upon Thames: