Southwark · England
Gas Safety Certificate (CP12) in Southwark
Book your Gas Safety Certificate (CP12) in Southwark with a vetted professional — clear pricing guidance, certificates delivered digitally, renewal reminders included.
Straight answer
Every rented property in Southwark 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
From enquiry to certificate
Live booking isn't switched on for Southwark 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.
Paperwork
Copies, retention and the renewal window
Treat the CP12 like an MOT: renew it in the two months before it lapses and the expiry date carries forward as if you'd waited. Copies are a legal duty, not a courtesy — 28 days for sitting tenants, before move-in for incoming ones — and the record should stay in your file for at least two years, ideally alongside its predecessors as a maintenance history.
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.
The law
What the law asks of landlords in Southwark
The duty comes from the Gas Safety (Installation and Use) Regulations 1998, which apply across Great Britain — Northern Ireland has parallel regulations to the same effect. Breaches are criminal offences prosecuted by the HSE, with fines that can be unlimited and imprisonment available for the worst cases. In England, a missing gas record can also invalidate a Section 21 notice, blocking possession until the paperwork is right.
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; London Borough of Southwark is the local housing authority for Southwark.
Credentials
Who you're letting in
Anyone can print an invoice; only a Gas Safe registered engineer can issue a valid landlord gas safety record. That registration — and insurance to back the work — is our non-negotiable bar for professionals we book. The Gas Safe Register is publicly searchable, so you never have to take anyone's word for it, including ours.
For landlords in Southwark
Letting in Southwark: the practical points
The gas rules themselves are national, so nothing about the check is different in Southwark — what's local is the housing enforcement around it. London Borough of Southwark 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.
Pricing
What a CP12 costs
Two identical adverts can hide very different jobs — one boiler versus four appliances, ground-floor flat versus awkward loft access. That's why we show a guidance range rather than a headline teaser price, and confirm the real figure for your property before you commit. Bundling the annual boiler service into the same visit typically works out cheaper than booking it separately.
FAQ
Common questions about the Landlord Gas Safety Record (commonly called a CP12)
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.
Are the gas rules different for an HMO in Southwark?
The annual check itself is the same, but HMO licensing (administered by London Borough of Southwark) usually requires you to provide the current gas safety record with your licence application and on request. Check your licence conditions for any extra record-keeping duties.
Do tenants' own gas appliances need to be on my record?
Appliances owned by the tenant are not the landlord's responsibility to check, but the pipework serving them is, and any flue serving a tenant appliance that you own must be included. Note the division of responsibility in your tenancy agreement.
What is a CP12 gas safety certificate?
CP12 is the industry nickname for the Landlord Gas Safety Record — the document a Gas Safe registered engineer issues after checking each gas appliance, flue and pipework in a rental property. Landlords letting property in Southwark must have this check done every 12 months.
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 Southwark book both together because the engineer is already on site, but only the safety check is a legal requirement.
What does the gas safety record actually include?
It lists each appliance and flue checked, the checks performed, defects found and action taken, the engineer's name, registration number and signature, the property and landlord details, and the date of the check.
Nearby
Also serving landlords in: Lambeth · Lewisham · Tower Hamlets · Westminster · all of London
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