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— Gas Safety · CP12 · From £67.99
A Gas Safety Certificate, done properly, the same day.
Every landlord letting a property with a gas supply is legally required to have it checked annually by a Gas Safe registered engineer. We test every appliance, flue, and meter — and hand you the CP12 before we leave.
30–45 min
Typical visit
12 months
Certificate validity
£67.99
Starting price
Home / Services / Gas Safety Services / Gas Safety Certificate
— Gas Safety · CP12 · From £67.99
A Gas Safety Certificate, done properly, the same day.
Every landlord letting a property with a gas supply is legally required to have it checked annually by a Gas Safe registered engineer. We test every appliance, flue, and meter — and hand you the CP12 before we leave.
30–45 min
Typical visit
12 months
Certificate validity
£67.99
Starting price
— Pricing At A Glance
Priced per appliance. Confirmed before we start.
You’ll always know the total before testing begins — no return-visit charges.
Starting Price
Up to 2 Appliances
£67.99
Additional
Per Extra Appliance
+£10.00
Example
4 Appliances
£87.99
*Number of appliances confirmed on-site before testing begins — no return-visit charges.
— What Is A Gas Safety Certificate?
The CP12 — an annual, not a five-year, obligation
A Gas Safety Certificate — properly called a CP12, or Landlord Gas Safety Record — is the document that proves every gas appliance, pipe, and flue in a rented property has been checked and is safe to use.
It’s issued by a Gas Safe registered engineer after testing each appliance for correct operation, safe ventilation, and signs of leaks or carbon monoxide risk.
Unlike an EICR, which runs on a five-year cycle, a Gas Safety Certificate has to be renewed every 12 months for as long as the tenancy continues — there’s no grace period for as long as a gas supply is present in a let property.
— When You Need One
Five moments that trigger a check
- Before any tenancy begins
- Every 12 months, without fail
- After installing a new appliance
- Within 28 days of expiry
- Before selling with gas appliances
— Why It Matters
Carbon monoxide gives no warning. Your check is the warning.
It has no smell, no colour, and no symptoms until it’s already dangerous — which is why gas checks are treated more strictly than almost any other compliance certificate.
Legal Exposure
Criminal offence
Letting without a valid CP12 can lead to prosecution and unlimited fines — not just a compliance gap.
Insurance
Cover voided
Landlord insurance is void by default if a gas-related incident occurs without a current certificate.
Prevention
Fully preventable
An annual check is the single most effective way to catch a fault before it becomes a tragedy.
— How The Check Works
Four stages, one visit
A typical residential visit takes 30–45 minutes depending on the number of appliances.
STAGE 01
Appliance check
Every gas appliance in the property — boiler, hob, fire, water heater — is inspected for safe operation and correct installation.
STAGE 02
Flue & ventilation test
Flues are checked for blockages or leaks, and ventilation is confirmed adequate for each appliance.
STAGE 03
Pressure & safety device test
Gas pressure is measured, and safety cut-off devices are tested to confirm they respond correctly.
STAGE 04
Certificate issued
A copy of the CP12 is provided to you and, where required, your tenant, on the same day.
Boiler due its annual check?
Don't wait for the reminder letter. Book now and we'll test everything — boiler, hob, fire — in one visit.
— Frequently Asked Questions
Everything landlords ask us about gas safety
Every 12 months, for as long as the property has a gas supply and is let to tenants.
Only a Gas Safe registered engineer — check any engineer’s registration number on the Gas Safe Register before booking.
It will be isolated and labelled “do not use” until repaired. We’ll advise you on next steps and can usually schedule remedial work quickly.
No — a Gas Safety Certificate is only required where a gas supply and appliances are present.
From £67.99 for up to 2 appliances, plus £10 for each additional appliance. See the pricing table above for a full breakdown.
Typically 30–45 minutes, depending on how many appliances need testing.
— Book Your Gas Safety Check
Certified same-day, every time.
Gas Safe registered engineers, all appliances tested, certificate in hand before we leave.
Or call 020 4518 8198 — Monday to Friday, 9am–6pm