As we are sure you are aware the contract should clearly specify who is responsible for carrying out the maintenance and safety check duties, and the keeping of the associated records. If the contract specifies that the agent has responsibility then the same duties under the Gas Safety (Installation and Use) Regulations 1998 that apply to a landlord apply to the agent.
In this situation an agent must arrange maintenance by a Gas Safe registered engineer for all pipework, appliances and flues, which the landlord owns and provides for the tenants use. You must also arrange for an annual gas safety check to be carried out every 12 months by a Gas Safe registered engineer . You must keep a record of the safety check for 2 years and issue a copy to each existing tenant within 28 days of the check being completed and issue a copy to any new tenants before they move in.
The latest (March 2018) ARLA factsheet titled Landlords Legal responsibility for Gas Safety can be found here. Should you require the services of a competent gas engineering company to service your clients do please contact us as we would be delighted to assist.
We work for a number of Estate Agents and Lettings Agents in the local area and they find our services prompt, reliable and efficient. We understand the need for effective communication and appreciate that jobs need to be done in a timely manner.