Gas Safe register
The official register of businesses and engineers legally allowed to work on gas appliances and fittings in Great Britain. Only a registered engineer may do a landlord's gas check.
In short: The Gas Safe Register is the list of engineers approved under the Gas Safety (Installation and Use) Regulations 1998 to work on gas. Anyone installing, servicing or checking gas appliances for payment must be registered. A landlord's yearly gas safety check must be done by a Gas Safe registered engineer.
Safety certificates and the home
England. Checked against the law on 5 October 2026. Information, not legal advice.
Regulation 3 of the 1998 Regulations says only a member of the approved class of persons, the Gas Safe Register, may carry out gas work as a business.
Practical checks before an engineer starts:
- Ask to see their Gas Safe ID card, with their photo, licence number and the kinds of gas work they are qualified for (for example boilers or cookers).
- Look up the number on the Gas Safe Register's website.
- Check the engineer's name and number appear on the gas safety record they give you.
Work by someone who is not registered is unlawful and may be unsafe. Tenants can ask to see the engineer's card too.
Read more: The certificates every let needs (gas, electrical, EPC, alarms)
Related: Gas safety record (CP12)
Where this comes from
Guides on this
Guide
The certificates every let needs (gas, electrical, EPC, alarms)
A private let in England needs a gas safety record every year, an electrical report every five years, an EPC rated E or better, and working smoke and carbon monoxide alarms. What each one is, how often, and what happens if you let without it.
Guide
What is the minimum EPC rating to let a home in England?
A home you let in England needs an EPC rated E or better, unless an exemption is on the PRS Exemptions Register. The planned rise to C from 1 October 2030 is government policy but still needs new law.
Guide
Do I need a licence to let my property? HMO, additional and selective licensing
Five or more people from two or more households need a mandatory HMO licence. Your council may also license smaller HMOs, or every let in an area. How to check, and what happens without one.
Guide
How often does a landlord need an EICR?
Every private let in England needs the electrics inspected and tested at least every five years. Copies to the tenant within 28 days, urgent repairs within 28 days, and a council fine of up to £40,000.
Related terms
Glossary
Category 1 hazard
The most serious level of hazard under the HHSRS. When a council finds one in a home, it must take enforcement action.
Glossary
EICR codes: C1, C2, C3 and FI
The codes an electrician uses on an EICR: C1 danger present, C2 potentially dangerous, FI further investigation needed, C3 improvement recommended.
Glossary
Electrical installation condition report (EICR)
A report by a qualified electrician on the safety of a home's fixed wiring. Every private let in England needs one at least every five years.
Glossary
Energy performance certificate (EPC)
A certificate rating a home's energy efficiency from A (best) to G, valid for ten years. Needed before a home is let or sold, and shown in adverts.
Glossary
Gas safety record (CP12)
The record a Gas Safe registered engineer gives after the yearly safety check of every gas appliance and flue a landlord provides. Required for every let home with gas.
Glossary
Housing Health and Safety Rating System (HHSRS)
The method councils in England use to assess hazards in homes, such as damp, cold, falls and fire, and decide whether to take action against the landlord.