We recommend that you always ask to see the engineers Gas Safe registration.
Are you a Landlord?
If you are a landlord you have legal obligations when it comes to gas safety.
Landlords’ legal duties apply to a wide range of accommodation including:
Residential premises provided for rent by local authorities, housing associations, private sector landlords, housing co-operatives, hostels rooms let in bed-sit accommodation, private households, bed and breakfast accommodation and hotels rented holiday accommodation such as chalets, cottages, flats, caravans and narrow boats on inland waterways
Make sure you read the below gas safety advice for landlords. (link)