Recent work · Boiler servicing

New pressure relief valve and a service on a Worcester 440

A Worcester Bosch Highflow 440 in Worcestershire that was losing pressure. Ian fitted a new pressure relief valve, topped up the expansion vessel and serviced it.

The job

Job
Boiler servicing
Appliance
Worcester Bosch Highflow 440
Fuel
Gas
Where
Worcestershire
When
5 September 2026
A white floor-standing Worcester Bosch Highflow 440 gas boiler with its control panel showing 37 degrees
In Ian's words

I serviced a Worcester Bosch 440 Highflow. There was a bit of an issue with it losing pressure, so I changed the pressure relief valve and topped the expansion vessel pressure back up.

Now it's holding its pressure and the valve isn't letting by. With the annual service done as well, it's a happy customer, ready for the winter.

More about boiler servicing →

Guide: Boiler losing pressure →

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