How Often Should a Commercial Boiler Be Serviced?

Once a year. That is the standard recommendation for most commercial boilers, and it lines up with the annual gas safety check requirement under the Gas Safety (Installation and Use) Regulations.

Why annual matters

Gas Safety Regulations require that gas appliances in commercial premises are maintained in a safe condition. An annual service and gas safety check is how you meet that obligation and maintain a documented record. Some boiler manufacturers also specify annual servicing as a condition of their warranty. If yours does, skipping a year could affect your cover.

Get it done before winter, not during

Most commercial boiler failures happen when the heating is working hardest. An engineer who finds a problem in summer can get it fixed before the cold sets in. Book in September or early October at the latest. Once the heating season is in full swing, availability tightens and the wait for engineers goes up.

Signs something might be wrong before your next service is due

If any of the following apply, do not wait for the annual service.

The boiler is making noises it did not make before — banging, whistling, or kettling.

Heating is uneven across the building or slow to come on.

The boiler pressure keeps dropping and needs topping up regularly.

The pilot light keeps going out.

There is any smell of gas or burning near the boiler or plant room. If you smell gas, treat it as an emergency.

The last service was more than twelve months ago.

EPM carries out commercial boiler services and gas safety checks across Exeter and Devon. Get in touch to book.