Gas Safety Certificates (CP12) in London

At Certify My Property, a Gas Safety Certificate (CP12) covering up to three gas appliances starts from £79. We also offer gas meter safety checks from £69 and a boiler service with a free CP12 from £99. Final pricing depends on the services required and your property's circumstances.

Landlords must generally arrange gas safety checks at intervals of no more than 12 months. There are permitted arrangements for carrying out an annual check up to two months before its due date while retaining the original deadline for the next check. A CP12 records the inspection carried out; it does not guarantee that an appliance will remain safe for the following year.

Yes. Landlords in England have legal responsibilities under the Gas Safety (Installation and Use) Regulations 1998. These include arranging annual safety checks for relevant gas appliances and flues provided for tenants, maintaining covered installations safely and providing tenants with the required gas safety records.

A straightforward domestic gas safety inspection often takes approximately 30–60 minutes, although this is only a guide. The actual duration depends on the number and type of appliances, their condition, accessibility and any safety concerns identified during the visit.

If the engineer identifies an unsafe appliance or installation, the findings will be documented and the appropriate safety procedures followed. Depending on the risk, this may involve advising that the appliance must not be used or taking other action in accordance with the applicable gas safety procedures.

Any repairs, replacement parts or further fault investigations would normally be quoted separately. A gas safety record may still be issued documenting the defects; receiving a record does not mean every appliance has passed its safety checks.

No. A Gas Safety Certificate records relevant safety checks on gas appliances and installations. A boiler service involves additional inspection and maintenance procedures in line with the manufacturer's instructions.

If you require both, we offer a Boiler Service + Free CP12 package starting from £99.

Homeowners living in their own property are generally not subject to the same annual gas safety record requirements as landlords. However, gas appliances should still be maintained safely, and regular servicing and safety checks are recommended.

If your property has a gas meter and pipework but no connected gas appliances, a gas meter or installation tightness check may be appropriate.

We offer a Gas Meter Safety Check from £69. This is different from a standard CP12 inspection covering gas appliances and should not be presented as an appliance safety record.

The tenant does not necessarily need to be present, provided lawful access has been arranged and an authorised person can give the engineer access to the property and relevant gas installations.

Please ensure access is available to the gas meter, appliances and associated flues before the appointment.

We normally aim to provide completed digital Gas Safety Records within 24–48 hours following the inspection, subject to the engineer's findings and completion of the paperwork.

Yes. We can assist landlords, letting agents and property managers with arranging gas safety inspections across multiple London properties. Contact our team with the property addresses and appliance details so we can discuss scheduling and pricing.

The terms are commonly used interchangeably. CP12 is an older industry term that continues to be used for a Landlord Gas Safety Record. The record documents the relevant gas safety inspection and its findings.