Gas Safety Certificate (CP12) in City of London — Landlord Compliance Sorted
If you rent out a property in City of London, a CP12 Gas Safety Certificate is a legal requirement — not optional. Under the Gas Safety (Installation and Use) Regulations 1998, landlords must have all gas appliances inspected by a Gas Safe registered engineer every 12 months. DRMB Plumbing & Heating handles this end-to-end: we attend, inspect, sign off the certificate, and email it to you the same day.
CCZ work accepted — advance booking advised, congestion charge factored into our fixed rate. We are Gas Safe registered (business reg #532682), which means our certificates are legally valid and accepted by letting agents, councils and property managers. CCZ rate — congestion charge included, no extra call-out fee.
"Surprised they came into the City but they did, on time, fixed price." — EC2 property manager
What the CP12 Inspection Covers
CP12 Pricing in City of London (CCZ (Congestion Charge Zone) Rate)
| Service | Price | Notes |
|---|---|---|
| CP12 Gas Safety Certificate | £115 | Up to 2 gas appliances |
| Each additional appliance | £15 | Gas fire, additional hob, etc. |
| Annual boiler service | £115 | Manufacturer-spec, warranty maintained |
| Service + CP12 combined | £200 | One visit — saves £20 vs separate |
CCZ rate — congestion charge included, no extra call-out fee. No VAT added. Price confirmed before we visit.
Landlord in City of London? Combine CP12 + Boiler Service
A boiler service and CP12 on the same visit is £200 — saving £20 versus separate appointments. One engineer visit, one invoice, one date to remember for next year. Most landlords book both together.
Frequently Asked Questions — CP12 City of London
Do I legally need a CP12 in City of London?
Yes. The Gas Safety (Installation and Use) Regulations 1998 require all landlords to have gas appliances inspected annually by a Gas Safe registered engineer. You must give tenants a copy within 28 days of the inspection, or before move-in for new tenants. Failure to comply carries an unlimited fine and up to 6 months in prison.
How much is a CP12 in City of London?
A CP12 in City of London is £115 for up to 2 gas appliances. Each additional appliance is £15. Combined boiler service + CP12 on the same visit is £200 — saving £20. No VAT. No call-out fee.
What if my boiler fails the CP12 inspection?
If an appliance is unsafe, the engineer will advise you of the fault and — where necessary — isolate the appliance. You will receive a written report detailing any defects. We can quote for repair or replacement separately. The inspection fee is still payable.
How long does a CP12 take?
A standard CP12 inspection of a boiler and one other appliance typically takes 45–60 minutes in City of London. If you also book a boiler service on the same visit, allow 90 minutes. The certificate is emailed the same day.
How often do I need a CP12?
Every 12 months, without exception. The certificate shows the date of the next inspection due — we can set you a reminder so the renewal doesn't slip. WhatsApp us on 07946 444414 to book.
