The Health and Safety Executive (HSE) state:

“Landlords have a duty of care to their tenants. This is a legal duty to repair and maintain gas pipework, flues and appliances in a safe condition, to ensure an annual gas safety check on each appliance and flue, and to keep a record of each safety check.

In the event you are unable to gain access to the property, e.g., refusal of access due to tenants self-isolating, or if you are unable to engage a registered gas engineer to carry out the work due to a shortage of available engineers, you will be expected to be able to demonstrate that you took reasonable steps to comply with the law. This will need to include records of communication with the tenant and details of your engineers attempts to gain access. You should seek to arrange the safety check as soon as all parties are available.

If you anticipate difficulties in gaining access as the COVID-19 situation progresses, you have the flexibility to carry out annual gas safety checks two months before the deadline date. Landlords can have the annual gas safety checks at their properties carried out any time from 10 to 12 calendar months after the previous check and still retain the original deadline date as if the check had been carried out exactly 12 months after the previous check.

You are encouraged to arrange your annual gas safety checks as early as possible, as a contingency against tenants being in self-isolation for a period of 14 days (in line with current guidelines), or gas engineers being unavailable due to illness. The two-month period to carry out annual gas safety checks should provide adequate resilience in most situations.