Westminster · England
Gas Safety Certificate (CP12) in Westminster
Book your Gas Safety Certificate (CP12) in Westminster with a vetted professional — clear pricing guidance, certificates delivered digitally, renewal reminders included.
Straight answer
Landlords in Westminster must have every gas appliance, flue and the associated pipework checked once a year by a Gas Safe registered engineer. The check produces the Landlord Gas Safety Record — the CP12 — which remains valid for 12 months.
Booking
From enquiry to certificate
Our network doesn't yet show confirmed availability in Westminster. Rather than guess, tell us what the property needs and we'll come back with a real answer — coverage, timing and price — before you decide anything.
The inspection
What the engineer actually checks
The inspection covers three layers: the supply (a tightness test from the meter), the appliances (combustion, pressure, safety devices, ventilation — tested with each appliance running), and the flues (visual condition plus confirmation that combustion gases discharge safely outside). An appliance the tenant owns isn't yours to certify, but pipework serving it is, and it stays in scope. The signed record closes the visit.
The law
Why Gas Safety Certificate (CP12) matters for Westminster landlords
Legally, three things are required of you: a check of every appliance and flue at intervals of no more than 12 months, carried out by a Gas Safe registered engineer; a record of that check retained for at least two years; and copies to tenants — within 28 days for existing tenants, before move-in for new ones. The regulations apply UK-wide, and the HSE treats non-compliance as a criminal matter with unlimited fines available.
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; Westminster City Council is the local housing authority for Westminster.
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.
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.
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.
Letting property in Westminster
Letting in Westminster: the practical points
For landlords in Westminster, the practical points are the universal ones: annual check, Gas Safe engineer, tenant copies on time. Keep the record where you can produce it quickly — for your agent, your insurer, or Westminster City Council if the property is licensed or ever inspected. Certificates that can't be found cause almost as much trouble as certificates that were never done.
FAQ
Before you book: quick answers
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.
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.
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.
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 Westminster book both together because the engineer is already on site, but only the safety check is a legal requirement.
My Westminster property has no gas supply — do I still need a CP12?
No. If the property has no gas supply or gas appliances, the gas safety regulations do not apply. If the supply is merely capped but a live meter remains, taking professional advice is sensible before assuming you are exempt.
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.
Nearby
Letting elsewhere close by? See: Camden · Kensington and Chelsea · Islington · Lambeth · all of London
Tell us the postcode and what needs certifying; we'll handle the rest and keep the renewal on our calendar, not just yours. Tell us about the property
Sorting your Gas Safety Certificate (CP12) in Westminster?
Tell us the property and we'll confirm coverage and price by email before anything is committed.