CP12 certificate example: what it must contain
Plenty of landlords search for a CP12 template they can fill in themselves. There isn't one — only a Gas Safe registered engineer can issue a valid Landlord Gas Safety Record. Here's what a real one contains, field by field, so you can read yours properly and spot an invalid record before a council officer does.
By the FixQuotes editorial team
- Published
- Reading time
- 5 min read
Key takeaways
- There is no DIY CP12 template. The record is only valid when a Gas Safe registered engineer carries out the check and issues it.
- A valid record lists: the engineer's name, signature and Gas Safe number, the check date, the property address, the landlord or agent's name and address, every appliance and flue checked, defects found, action taken, and the check results.
- CP12 is the old CORGI-era form code. The official name is the Landlord Gas Safety Record, under Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998.
- Your tenant must get a copy within 28 days of the check, or before moving in on a new tenancy. Keep records for at least two years.
- Verify any certificate by checking the engineer's number on the Gas Safe Register; the lookup is free and instant.
Why there's no CP12 template you can fill in
If you've searched for a "CP12 template" or a "gas safety certificate template UK", here's the honest answer: a blank form is no use to you. The Landlord Gas Safety Record is only valid when the inspection behind it was carried out by a Gas Safe registered engineer, and the engineer is the one who issues the paperwork. A landlord filling in a downloaded Word document has not produced a gas safety certificate — they've produced evidence of a Regulation 36 breach.
The confusion is understandable. CP12 was a CORGI form code, and CORGI ran the UK gas registration scheme until Gas Safe replaced it on 1 April 2009. The name stuck, the form didn't. Today every Gas Safe engineer issues their own version of the record — paper pad or app-generated PDF — and the layouts vary. What makes a record valid isn't the layout. It's who issued it and what it contains. Our plain-English CP12 guide covers the wider rules; this page covers the document itself.
What a valid CP12 lists, field by field
Layouts differ between engineers, but under Regulation 36 of the Gas Safety (Installation and Use) Regulations 1998 a Landlord Gas Safety Record has to carry the same core information. When yours arrives, check it shows all of the following:
1. The engineer. Name, signature, and Gas Safe registration number. No registration number, no valid record.
2. The date. The date the check was carried out. This drives your renewal deadline: the next check is due within 12 months.
3. The property. The full address of the property where the appliances were checked.
4. You. The name and address of the landlord, or the letting agent where the agent manages gas safety.
5. Every appliance and flue checked. Each landlord-owned gas appliance with its location, type and make: boiler, hob, oven, gas fire, water heater, plus the flues serving them. Anything not listed was not checked. Tenant-owned appliances aren't the landlord's responsibility and won't appear.
6. Defects and action taken. Any defect identified, classified as Immediately Dangerous (ID), At Risk (AR), or Not to Current Standards (NCS), and the remedial action taken or required.
7. The results. The outcome of the operational safety checks for each appliance: a satisfactory or unsatisfactory verdict per item.
How to verify the certificate is genuine
Every Gas Safe engineer carries an ID card with a photo, their registration number, and the categories of gas work they're qualified for. Categories matter: an engineer registered for cookers isn't automatically registered for boilers, and natural gas registration doesn't cover LPG.
To verify a record you've been handed, look up the engineer's registration number on the Gas Safe Register. The lookup is free and instant, and shows the engineer's registered categories so you can confirm they were qualified for the appliances on your record. If a certificate carries a CORGI logo and a date after 1 April 2009, it is not valid. The wider duties behind the record are set out in HSE's guidance for landlords on gas appliances.
Your copy duties once the record is issued
Getting the record issued is half the job. A copy must reach your existing tenant within 28 days of the check. On a new tenancy, the tenant must have a copy before they take possession. Keep each record for at least two years.
Portfolio landlords: the renewal maths has one useful concession. Run the next check up to 2 months before the current record expires and the new record keeps the original anniversary date, so clustering several properties onto one engineer day doesn't make your renewal dates drift forward each year.
Need a CP12 issued? What it costs
Typical 2026 UK pricing is £60–£120 for the CP12 alone on a single-boiler property, and £80–£150 where a hob, oven or fire is checked too. London runs roughly 15–25% above the UK average. Most landlords bundle the CP12 with the annual boiler service, which typically lands at £110–£180 combined. Full breakdown in our CP12 cost guide.
If you'd rather not ring round engineers, send the job to FixQuotes once and we return three quotes for the same job from Gas Safe registered engineers, free for landlords and letting agents. Start at our gas safety certificate quotes page.
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