As a landlord, it is your legal duty to ensure all Gas and Electrical equipment in your property is safe and maintained throughout the whole tenancy. This responsibility covers Boilers, Gas cookers, Fires, light fixtures and plugs, as well as internal wiring.
Just like other features of your property, Gas and electrical installations deteriorate and face wear and tear, so need to be properly maintained.
Failure to do so can lead to prosecution and also invalidates most landlord insurance policies. For the safety of your tenants and your business, it is important to get regular safety certification.