Legal requirement

Gas safety check (CP12)

Every gas appliance and flue checked by a Gas Safe engineer every 12 months.

Applies to: Any holiday let with a gas supply, gas appliances or LPG.

How oftenEvery 12 months. Can be done up to 2 months early and keep your anniversary date
Who can do itA Gas Safe registered engineer only
Typical costAbout £60 to £100; £90 to £150 combined with a boiler service
If it's missedHSE says a substantial fine and/or prison. Insurers may refuse gas-related claims

What the rules say

The Gas Safety (Installation and Use) Regulations 1998 apply to holiday accommodation, and HSE lists cottages, chalets, flats, caravans and narrowboats by name. Every gas appliance and flue you provide must be checked each year and kept in a safe condition.

For lets of under 28 days you can display a copy of the record prominently in the property instead of handing one to each guest. Keep each record for 2 years.

What to do

  1. Book the check in month 10 or 11. Done within 2 months of the due date, the next one is still due on your original anniversary. HostSorted works this out for you.
  2. Check the engineer's Gas Safe ID card and that they are qualified for your appliance types.
  3. Upload the certificate here and put a copy in the welcome folder.
  4. Fix anything the engineer marks as "at risk" or "immediately dangerous" before the next guests arrive.

Elsewhere in the UK

Scotland: The same annual check applies, and a certificate from the last 12 months is a licence condition.

Wales: The same annual check applies, enforced by HSE.

Northern Ireland: The Gas Safety (Installation and Use) Regulations (NI) 2004 require the same annual check, enforced by HSENI.

Tips from the field

  • A safety check is not a service. Most manufacturers still want an annual boiler service.
  • Fit a CO alarm next to every gas appliance.
  • Keep the engineer's licence number with the record. You can check it on the Gas Safe Register.

Official sources

Costs are typical 2025/26 prices, not official figures. This is general information, not legal advice. Last checked 26 Sept 2026.

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