Mid and West Wales Fire Service won't attend automatic fire alarm call-outs from commercial and public sector buildings from July onwards unless an actual fire has been reported. Fire chiefs said the change would free up resources and that they had taken steps to communicate the new policy to organisations affected.

Many premises have automatic fire alarms which currently trigger a fire service response via a receiving centre. Mid and West Wales Fire Service said statistics showed that the majority of signals from these systems were false alarms triggered by things such as cooking fumes, dust, or inadequate maintenance.

Peter Greenslade, area manager and head of corporate risk, said: "As a service we attend in excess of 2,000 alarm actuations in commercial buildings every year with over 99% of these calls being false alarms. This disrupts the community safety work that the service can deliver, operational training for crews, and introduces environmental and road risks that are unnecessary. Additionally the businesses themselves are impacted due to the disruption caused." For the latest Welsh news delivered to your inbox sign up to our newsletter

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Fire crews generally don't travel to automatic fire alarms on blue lights and dealing with these call-outs can take up to an hour in some instances. Mr Greenslade said most automatic fire alarms emanated from hospital, local authority, and education buildings.

"The majority of companies don't activate alarms into a receiving centre - for those that do they need to factor this (change) into their fire risk assessment," he said. "It is important that commercial premises take ownership of false fire alarms within their premises as is their legislative duty. We will of course always respond to 999 calls when people have identified that there is a fire."

The service, which covers Swansea, Neath Port Talbot, Carmarthenshire, Powys, Pembrokeshire, and Ceredigion, stressed it would continue to attend automatic fire alarms from residential properties, nursing and care homes, premises subject to fire safety prohibition or enforcement notices, and also boarding schools. Get the best user experience with WalesOnline’s Premium app on Apple or Android

A spokeswoman said a consultation about its proposed change had taken place via a wider community risk management plan and it had written to the 100 premises which triggered the most automatic fire alarms. Meetings were offered to health boards, councils, and universities and the change has also been approved by Mid and West Fire Authority, which scrutinises the service.

The Local Democracy Reporting Service asked Swansea and Carmarthenshire councils if they were reviewing their fire safety processes for schools, especially during night-time hours, when they were empty. A Swansea Council spokesman said: "We are aware of the changes being proposed by the fire service and are discussing the matter with them. The council will continue to work with the service and our schools to ensure that schools and other public buildings in Swansea continue to have the highest possible standard of safety both while occupied and out of hours."

Jason Jones, Carmarthenshire Council's property maintenance manager, said it had robust fire safety processes, including out-of-hours arrangements, and that it had had extensive discussions with fire chiefs about the change coming into effect on July 1. He said the council had formed a dedicated task and finish group with this in mind. "This group will work to integrate the new measures within the existing processes of the council ensuring a comprehensive and proactive approach to safety management," he said.