Switches & Sensors

Browse the high-quality components you need to keep your boiler running smoothly with our switches and sensors. 

We stock products from leading brands, including Alpha, Ariston and Biasi. Whether you need a replacement part or an upgrade, we've got you covered.

Qualify for free delivery on all online orders over £75 or choose next-day delivery on selected items. Alternatively, use our handy Click & Collect service. 

Boiler switches and sensors control and monitor critical functions, ensuring your heating system delivers consistent heat while maintaining safety and energy efficiency. From managing water pressure to regulating temperature, these components are unsung heroes of home maintenance and comfort.

Our pressure sensors ensure your boiler operates within safe pressure limits. Choose the Ariston Pressure Sensor, which automatically shuts off the boiler when pressure exceeds or falls below recommended levels. It's compatible with most modern boiler systems. 

Flow switches detect water flow to prevent dry firing and system damage. They're essential for maintaining efficient heat exchange and prolonging boiler lifespan. The Biasi Domestic Hot Water Flow Switch acts as an excellent safety device that prevents the burner from turning on if the system is dry or low on water. It can be easily installed in the piping of your central heating and hot water systems. 

With more than 40 years of experience in the plumbing and heating industry, we can provide you with quality, durable products. Our core company values ensure we deliver excellent customer service. 

We have a selection of boiler accessories available for next-day delivery should you need your products quickly. Don't forget to use our Click & Collect service to pick up your items at a time that suits your schedule. 

Download the City Plumbing app and enjoy 15% off your first in-app order. Collect points by signing up for My City Plumbing Rewards.

Explore our range of boiler switches and sensors for sale online or head to your local branch to get expert advice and view our products in person. For more general enquiries, get in touch with our friendly team who will be more than happy to help.