Greenwich · England
Gas Safety Certificate (CP12) in Greenwich
From enquiry to certificate: Gas Safety Certificate (CP12) for landlords in Greenwich, handled by professionals holding the registration the law requires, with pricing confirmed before you commit.
Straight answer
Every rented property in Greenwich with a gas supply needs an annual landlord gas safety check. Only an engineer on the Gas Safe Register can carry it out, the record lasts 12 months, and renewing in the final two months preserves your existing expiry date.
Booking
Booking in three steps
Live booking isn't switched on for Greenwich yet — vetting comes before listing, in that order. Leave your details and you'll get a straight answer by email: whether we can cover the property, when, and for how much. No obligation either way.
The inspection
What the engineer actually checks
A CP12 visit is systematic rather than long: a tightness test on the supply, then every landlord-owned gas appliance tested in turn. The engineer checks that each burns correctly, that safety cut-offs work, that the room has the ventilation the appliance needs, and that flues carry fumes clear of the property. Results, defects and any action taken go on the record, alongside the engineer's Gas Safe registration number — the detail worth verifying.
Paperwork
Copies, retention and the renewal window
The paperwork rules are as enforceable as the check itself. Give existing tenants their copy within 28 days and new tenants theirs before they move in; keep every record for a minimum of two years; and diarise renewal for the two-month window before expiry — done then, the new record runs from the old expiry date rather than resetting the clock early.
Credentials
Who you're letting in
The credential that matters here is a live Gas Safe registration covering the appliance types in your property — it's what makes the certificate legally worth the paper. We verify it, along with insurance, before a booking is confirmed. No invented review scores on this page; the register is public, and checking it beats any star rating.
Pricing
What a CP12 costs
What moves the price is mostly appliance count: a flat with a single combi boiler sits at the bottom of the range, while a house with a boiler, hob and gas fire takes longer and costs more. Adding a boiler service to the same visit is usually cheaper than a separate appointment. The figures above are national guidance — your confirmed price comes before anything is booked.
The law
Why Gas Safety Certificate (CP12) matters for Greenwich landlords
The Gas Safety (Installation and Use) Regulations 1998 make the annual check a hard legal duty wherever in the UK you let, Greenwich included. The HSE prosecutes failures — penalties are unlimited fines and potentially imprisonment — and in England an expired record blocks a valid Section 21 notice. If the property is a licensed HMO, expect Royal Borough of Greenwich to require the current record as a licence condition too.
Landlords must have every gas appliance and flue they provide checked by a Gas Safe registered engineer at least every 12 months, keep the record for two years, give tenants a copy within 28 days of the check, and give new tenants a copy before they move in.
Equivalent annual duty applies in Northern Ireland; engineers must be Gas Safe registered.
Penalties stated are statutory maximums or court-set; Royal Borough of Greenwich is the local housing authority for Greenwich.
The local picture
Letting in Greenwich: the practical points
The gas rules themselves are national, so nothing about the check is different in Greenwich — what's local is the housing enforcement around it. Royal Borough of Greenwich is the housing authority for the area, and if your property needs an HMO licence, the current gas record is the kind of document its conditions will expect you to hold and produce on request.
FAQ
Before you book: quick answers
How long must I keep gas safety records?
Keep each record for at least two years. Because defects and history can matter in disputes, many landlords keep the full chain of records for the life of the tenancy — digital copies are fine.
What if my tenant refuses access for the gas check?
You must take all reasonable steps: written requests, offering alternative dates, and keeping evidence of each attempt. You may not force entry. A documented paper trail of reasonable attempts is what the HSE expects if access is ultimately refused.
Do the same gas rules apply in Scotland, Wales and Northern Ireland?
Yes — the Gas Safety (Installation and Use) Regulations 1998 apply UK-wide (Northern Ireland has parallel regulations to the same effect). The annual check, the 28-day tenant copy rule and Gas Safe registration requirements are consistent across all four nations.
How long does a gas safety check take?
Typically around 30 to 60 minutes for a property with a boiler and one or two additional gas appliances. More appliances, or access issues, extend the visit.
What if an appliance fails the gas safety check?
The engineer records the defect and classifies how dangerous it is. Immediately dangerous appliances may be disconnected with your permission. You must have faults fixed by a Gas Safe engineer before the appliance is used again; the record itself lists the defects found.
Is a gas safety check the same as a boiler service?
No. The safety check confirms appliances are safe to use; a service is a maintenance clean and inspection of the boiler itself. Many landlords in Greenwich book both together because the engineer is already on site, but only the safety check is a legal requirement.
Nearby
Nearby coverage: Lewisham · Bexley · Tower Hamlets · Newham · all of London
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