Landlord Gas Safety Certificates (CP12)
Same-week appointments, key-holding service, automatic annual reminders. Compliance handled — so you can focus on the rest of your portfolio.
Gas Safe
registered
Same Week
appointments
Portfolio
discounts
Reminder
service
Service Overview
A CP12 (Landlord Gas Safety Certificate) is the legal record of an annual gas safety inspection that every landlord in the UK must hold for every let property with a gas supply. The inspection covers every gas appliance, all gas pipework and every flue, carried out and recorded by a Gas Safe registered engineer.
Every landlord, letting agent and managing agent of property with gas — whether a single buy-to-let, an HMO, or a multi-property portfolio. The legal duty sits with the landlord, but agents acting under management contracts share responsibility for ensuring it's done.
Annually — within 12 months of the previous inspection, and within 12 months of any new tenancy beginning. Certificates issued under the 'MOT rule' between 10 and 12 months retain the original anniversary date, so an annual rolling schedule is straightforward to maintain.
Failure to hold a valid CP12 is a criminal offence. Penalties include unlimited fines and, in serious cases, imprisonment. Beyond the legal duty: tenants whose lives are protected by working appliances, insurance policies that remain valid, and a portfolio that can be sold, refinanced or audited without compliance gaps. The cost of a CP12 is small; the cost of not having one is unlimited.
The Cost of Waiting
What landlords expose themselves to without proper CP12 management:
Our Process
01
One call or email. We confirm property address, appliances on site and access arrangements.
02
We can liaise directly with tenants to arrange access, or pick up keys from your agent — whichever is easier.
03
Visual inspection, controls test, flue check, ventilation assessment and gas tightness test on the supply.
04
Flue gas analyser measures CO/CO₂ ratio and combustion efficiency on every gas appliance present.
05
Signed CP12 emailed to landlord, agent and tenant within 24 hours. Reminder scheduled for next year.
Why Choose On-Tap
Every certificate logged on the Gas Safe register and stored digitally. Ready for insurer, agent or court audit.
Most CP12s booked within 3-5 working days — even closer to renewal anniversary if needed.
Discounts on portfolio bookings and annual contracts.
Pair the annual service with the CP12 for £110+VAT — one visit, one cost, full compliance and warranty maintained.
We deal with tenants directly, on time, in plain English. Your tenants will not chase you about the visit.
We track your renewal anniversary so a slot is offered before the certificate expires.
In Depth
Gas safety compliance for landlords is one of the most-policed and most-litigated areas of property law in the UK. Here's what you need to get right.
Under the Gas Safety (Installation and Use) Regulations 1998, every landlord must: arrange for an annual gas safety check on every gas appliance and flue at the property; keep a record of that check for at least two years; provide a copy of the most recent record to existing tenants within 28 days of completion, and to new tenants before they move in. The duty applies whether the landlord lets directly or through an agent.
Every fixed gas appliance the landlord owns: boilers, fires, water heaters, hobs and ovens. Appliances owned by the tenant (e.g. a tenant's own cooker) are excluded from the check itself, but the pipework supplying them and the gas installation as a whole remain the landlord's responsibility. Flues that pass through other properties (common in flats) must also be accessible for inspection — if they're not, the certificate cannot be issued.
Since April 2018, certificates renewed between 10 and 12 months after the previous certificate keep the original anniversary date. This means landlords can book inspections slightly early without losing time on the next certificate's validity. We schedule renewals at month 11 by default, preserving the anniversary and giving a 30-day buffer if any remedial work is needed.
If the engineer identifies an immediately dangerous (ID) or at-risk (AR) situation, the appliance is disconnected or labelled accordingly under the Gas Industry Unsafe Situations Procedure. A repair quote follows. CP12s cannot be issued for unsafe appliances — they must be made safe first. We work with landlords to schedule repairs immediately, so compliance gaps are measured in hours not days.
£80+VAT for a single appliance. Combined annual service + CP12 is £110+VAT. Portfolio pricing available for 5+ properties.
Most CP12s booked within 3-5 working days. Same-day appointments occasionally available for urgent renewals at no extra cost.
Yes — we coordinate access directly with tenants where the landlord prefers. We can also collect keys from agents or use key-safe codes provided.
Emailed PDF within 24 hours of the inspection, to whichever email addresses you specify (landlord, agent, tenant).
We isolate any immediately dangerous appliance, leave you a written quote for the fix, and re-issue the CP12 once the remedial work is signed off. Most problems can be resolved within days.
No — the regulations apply only to properties with gas. If the gas supply is capped and no appliances remain, no CP12 is required (though the cap itself should be inspected at change of tenancy).
Yes — single annual contract covering all properties, automatic reminder schedule, single monthly invoice. Several local agents use us this way.
Bedfordshire (Bedford, Flitwick, Biggleswade, Barton-le-Clay), Milton Keynes, Luton, Hitchin and Stevenage. Outside this we'll always try to help with portfolio bookings.
Related Services
A fixed-price quote in writing, a Gas Safe engineer on site, and the job done right first time.
