Gas Safety Certificate London
CP12 gas safety checks for landlords and homeowners across London. Same-day and next-day appointments. Certificates issued on the day of inspection.
From £79 - fixed price, no hidden extras
0800 123 4567A Gas Safety Certificate (CP12) in London costs £50–£90 for a standard check of one appliance. Landlords are legally required to hold a valid certificate. Certificates are valid for 12 months.
Gas Safety Certificate Cost London - 2026 Prices
| Job Type | Typical Cost | Time |
|---|---|---|
| CP12 - 1 appliance | £50–£75 | 30–45 min |
| CP12 - 2 appliances | £65–£90 | 45–60 min |
| CP12 - 3+ appliances | £80–£120 | 60–90 min |
| Boiler service + CP12 | £100–£150 | 90 min–2 hrs |
| Landlord annual certificate | £65–£90 | 45–60 min |
| Failed appliance repair | £80–£250 | 1–3 hours |
* Prices are estimates for London. Fixed price confirmed before work begins. £60 call-out fee.
Gas Safety Certificates for London Landlords
As a landlord in London, you have a legal obligation under the Gas Safety (Installation and Use) Regulations 1998 to ensure all gas appliances, pipework, and flues in your rental property are inspected every 12 months by a Gas Safe registered engineer.
Failure to have a valid CP12 can result in unlimited fines and up to 6 months in prison. It also invalidates your landlord insurance in the event of a claim. We make compliance easy - same-day appointments, certificates issued immediately, and reminders when renewal is due.
What We Inspect
Legal Requirement for Landlords
UK law requires landlords to carry out annual gas safety checks. Certificates must be given to existing tenants within 28 days and to new tenants before they move in. Failure to comply can result in unlimited fines and criminal prosecution.