Cardiff · Wales
Gas Safety Certificate (CP12) in Cardiff
One short form, and your Gas Safety Certificate (CP12) in Cardiff is in hand — correctly registered professionals, honest pricing guidance, and your certificate stored with its renewal date.
Straight answer
If you let a property with gas appliances in Cardiff, the law requires a gas safety check every 12 months, carried out by a Gas Safe registered engineer. The record it produces — the CP12 — goes to your current tenants within 28 days, and to new tenants before they move in.
Booking
What happens when you enquire
Live booking isn't switched on for Cardiff 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 law
The rules behind the certificate
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; Cardiff Council is the local housing authority for Cardiff.
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.
Credentials
Who you're letting in
Gas work is one of the few trades where the register isn't optional: an engineer who isn't Gas Safe registered can't legally sign your record, full stop. We check registration and insurance before confirming any booking, and you can verify any engineer yourself on the public Gas Safe Register — ask to see the ID card, and check the back for the work categories it covers.
Paperwork
Copies, retention and the renewal window
Once the record is issued, three dates matter. Tenant copies: within 28 days for current tenants, before occupation for new ones — and for lets shorter than 28 days, a displayed copy in the property is acceptable. Retention: keep each record at least two years, though holding the full chain is smarter. Renewal: book in the final two months and the MOT-style rule keeps your original expiry date, so early booking never costs you certificate time.
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.
Renting out in Cardiff
Letting in Cardiff: the practical points
Letting in Cardiff doesn't change the gas safety requirements — the same UK-wide regulations apply from the first tenancy onward. Where geography does matter is licensing and enforcement: Cardiff Council administers local housing standards and HMO licensing, and a current gas record is standard evidence whenever the council is involved with a rental.
FAQ
What Cardiff landlords ask us
Do I have to give tenants a copy of the gas safety record?
Yes. Existing tenants must receive a copy within 28 days of the check, and new tenants must get one before they move in. For rental periods under 28 days, displaying a copy in the property is acceptable.
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.
How often does a landlord need a gas safety check?
Every 12 months. You can arrange the renewal check any time in the two months before the current record expires and keep the original expiry date — the MOT-style rule — so booking early never shortens your certificate.
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.
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 Cardiff book both together because the engineer is already on site, but only the safety check is a legal requirement.
My Cardiff 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.
Nearby
Letting elsewhere close by? See: Newport · Barry · Caerphilly · Pontypridd · all of South Wales
Sort your Gas Safety Certificate (CP12) without the phone-tag: tell us about the property and we'll take it from there. Tell us about the property
Sorting your Gas Safety Certificate (CP12) in Cardiff?
Tell us the property and we'll confirm coverage and price by email before anything is committed.