Although specialised in Boiler and Heating Systems all calls for the smaller plumbing jobs are appreciated. 80% of parts are carried in the vans. All other parts can be sourced within 24 hours — so you, the customer, do not have to wait in the cold. Home Owners - Landlords - Estate Agents - Property Managers Keep your properties Gas Safety Records up-to-date with attractive discounts from Capital Boilers. A Gas Safety Record (also known as Certificate) is a record, that is required by law to be held for all rental accommodation in the UK where there are gas appliances present. Gas Safety Regulations 1998 require all gas appliances in a rented property to be checked annually, complete a gas safety record and a copy provided to tenants.