Gas Safety
Gas Safety Certificate (CP12): cost, rules and how to book
Annual safety check of every gas appliance in a let property, issued by a Gas Safe registered engineer.
- Typical UK cost
- £60 to £120
- Validity
- 12 months
- Legal basis
- Gas Safety (Installation and Use) Regulations 1998, Regulation 36.
Gas Safety cost calculator
Enter your postcode and property details for an estimated cost band. Figures are aggregated from public data and exclude any remedial work.
Book a Gas Safety
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Gas Safety cost by location
Local labour rates and parking conditions push prices up or down. Pick your area for a postcode-aware estimate.
Estimated cost: £75 to £150
View London guide →
Estimated cost: £81 to £162
View Camden guide →
Estimated cost: £75 to £150
View Hackney guide →
Estimated cost: £78 to £156
View Islington guide →
Estimated cost: £73 to £146
View Lambeth guide →
Estimated cost: £73 to £146
View Southwark guide →
Estimated cost: £75 to £150
View Tower Hamlets guide →
Estimated cost: £77 to £154
View Wandsworth guide →
Estimated cost: £84 to £168
View Westminster guide →
Estimated cost: £87 to £174
View Kensington and Chelsea guide →
Estimated cost: £78 to £156
View Hammersmith and Fulham guide →
Estimated cost: £72 to £144
View Haringey guide →
Show all 47 locations covered
What landlords need to know
The Gas Safety is required under Gas Safety (Installation and Use) Regulations 1998, Regulation 36. Certificates are valid for 12 months and must be renewed before they expire. Tenants are entitled to a copy when a new tenancy begins or within 28 days of a renewal inspection.
Costs vary by location, property size and the engineer's hourly rate. A two-bedroom flat in central London will typically cost more than a similar property in a regional city, primarily because of travel time and parking. Older properties with outdated wiring or installations may take longer to inspect.
We aggregate cost figures from public data and trade body guidance, then refresh them quarterly. Always confirm the final price with your chosen provider before booking.