The CP12, or Gas Safety Record, is the document that proves your property’s gas appliances have been checked annually by a Gas Safe registered engineer. For landlords it is a legal duty under the Gas Safety (Installation and Use) Regulations 1998. For owner-occupiers it is not compulsory, but it is still the cheapest insurance policy you can buy against a faulty boiler, an unsafe flue or a leaking gas line.
This guide explains what a CP12 covers, what landlords must do, what owner-occupiers should consider and how our Liverpool team carries out the inspection. We are skilled tradespeople and we treat every property with respect, whether it is a Victorian terrace in Wavertree or a new-build apartment on the waterfront.
What a CP12 Gas Safety Certificate Covers
A gas safety certificates inspection checks every gas appliance in the property: boilers, hobs, ovens, fires and water heaters, plus the associated flues and pipework. The engineer carries out tightness tests, checks combustion performance, looks at flueing and ventilation, and reviews the appliance for safe operation. Anything that fails is recorded as immediately dangerous, at risk or not to current standards, and you receive a written certificate.
We also use the visit to flag wider plumbing or heating issues that fall under our our servicing and repairs team service. Doing it during one appointment is part of having all trades under one roof: efficient for you, easier for us to schedule, and easier on the household.
Landlord Obligations Under the Regulations
Landlords must arrange a CP12 every twelve months, give a copy to existing tenants within 28 days and to new tenants before they move in, and keep records for at least two years. The detail and current guidance sit on the the official Gas Safe Register pages. Our engineers are on the the HSE landlord gas safety guidance, which we encourage every landlord to check before booking any contractor.
Our team can attend most Liverpool postcodes within a few working days. local boiler repair service for landlords is one of our busiest service lines and we can bundle inspections with EICRs, smoke and CO alarm checks or annual boiler servicing if you want a single contractor handling the property. To arrange a visit you can book a visit directly, or look at the full range we cover on see all services.
CP12 for Owner-Occupiers: Is It Worth It?
Owner-occupiers are not required by law to hold a CP12, but more and more homeowners ask for one. Reasons vary: peace of mind, an upcoming sale where buyers want documentation, or moving back into a property after letting it out. The inspection takes the same form and the certificate provides the same evidence that appliances were safe at the date tested.
We will be honest if a CP12 is unnecessary. If your boiler is under five years old and was serviced last year, a routine service may be enough. If you have older fires, back boilers or appliances installed before your time in the property, the inspection is genuinely useful.
What Happens When an Appliance Fails
Failures are coded ID (immediately dangerous), AR (at risk) or NCS (not to current standards). An ID code means the appliance must be disconnected with the user’s permission and left isolated. An AR appliance can sometimes be safely turned off pending repair. We will explain the practical implications, photograph the issue and quote any remedial work in clear, line-item form.
We do not over-recommend replacement. If a repair is sensible and economic we will tell you so. If a boiler is genuinely past its useful life and parts are no longer made, we will tell you that honestly too. Either way, the decision sits with you.
Booking with Omnis Developments Across the North West
Our Liverpool base means we cover Merseyside, the Wirral, Warrington, St Helens, Widnes, Runcorn, Manchester, Bolton, Wigan and Stockport with realistic turnaround times. Booking is straightforward, certificates are issued the same day where possible, and our dedicated mobile app keeps records accessible to portfolio landlords. Free consultations and quotes are part of our standard approach.
Frequently Asked Questions
- How long is a CP12 valid?
- Twelve months from the date of inspection. Landlords must renew before expiry.
- Can I get a CP12 for one appliance only?
- No. The certificate records the safety status of every gas appliance and the gas supply within the property.
- How much does a CP12 cost?
- Pricing depends on the number of appliances and location. We provide a competitive fixed quote before booking.
- What happens if a tenant refuses access?
- Document each attempt to gain access in writing. Reasonable steps are part of the landlord’s defence if a tenant refuses entry.
- Are CP12s required in Scotland or Wales?
- Similar duties apply across the UK under the same regulations. Our coverage is the North West of England.
Ready to Get Started?
A CP12 is a simple, annual piece of evidence that the gas in a property has been checked by a qualified engineer. It costs very little, takes around an hour and protects everyone who lives there. If you want to book a visit, our team is just a phone call or email away.
Contact Omnis Developments — Liverpool-based skilled tradespeople covering Merseyside, the Wirral, Warrington, St Helens, Widnes, Runcorn, Manchester and the wider North West.
Website: omnisdevelopments.co.uk
Email: info@omnisdevelopments.co.uk