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Landlord Gas Safety Certificate and Boiler Service As a landlord, it's your responsibility to make sure that all gas appliances, chimneys and flues are inspected every year. The law also requires you provide a copy of the check to your tenants. If the engineer believes that any installation or appliance is immediate danger the engineer will request permission to shut off gas from the system and recommend the installation of inspection hatches. What is what is a Gas Safety