Gas Safety Certificate Hammersmith & Fulham — 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 Hammersmith & Fulham as it does across England, and an HMO licence can add its own conditions on top.

Gas safety in Hammersmith & Fulham — local property context

Most Hammersmith and Fulham households live in flats: in Census 2021, 48.1% were in purpose-built flats and 24.5% in flats or bedsits in converted or shared houses. That second share is more than double London's, and 18.8% lived in terraced houses. The stock is old too: VOA figures date 55.7% of properties before 1919, against 29.1% London-wide.

Private renting is the borough's largest tenure. Council data from August 2024 put the borough's median two-bedroom rent fourth highest in London. Our Gas Safe registered engineers are experienced with the boilers, gas fires and appliances typically found in properties across the SW6, W12, W6, W14 postcode areas, and regularly carry out CP12 inspections across Hammersmith & Fulham for private landlords, letting agents and HMO operators.

Gas safety certificates and H&F licence applications

Hammersmith and Fulham's licensing FAQs tell landlords not to start an HMO application without a valid gas safety certificate where there is a gas supply. A selective application on one of the 24 streets needs a current certificate too wherever a gas appliance is fitted. The council accepts a certificate that is in date when you apply, then writes renewal into the licence.

HMO condition 19 requires a Gas Safe inspection of installations, appliances and flues every 12 months. A certificate from the last 12 months must be sent to the council within 14 days of a written request. The selective conditions contain the same requirement.

Households renting privately

36.4% (London 30.0%)

Census 2021

Households in flats or bedsits in converted or shared houses

24.5% (London 11.1%)

Census 2021

Homes built before 1900

48.1% (London 20.9%)

VOA 2025

Conservation areas

44, covering about half the borough

Hammersmith & Fulham Council

Gas Safety Certificate pricing in Hammersmith & Fulham

Fixed pricing by number of gas appliances. The same prices apply in Hammersmith & Fulham 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.

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What's included from £64.99

Every gas safety check we carry out in Hammersmith & Fulham 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 Hammersmith & Fulham

We also cover these landlord certificates in Hammersmith & Fulham:

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Gas Safety Certificate in nearby boroughs

We cover all 33 London boroughs. See Gas Safety Certificate pricing and booking for areas near Hammersmith & Fulham: