Underfloor Heating Pump Replacement
Underfloor heating relies on a circulation pump to move warm water through the floor loops. If the pump is failing or has stopped, this service replaces it with a correctly sized, compatible unit and then tests the system so heat circulates evenly and reliably again.
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What underfloor heating pump replacement covers
A focused repair visit to get a wet underfloor heating system circulating properly again, with clear checks before and after the swap.
- Fault finding to confirm the pump is the cause (not a control, actuator, valve, airlock or wiring issue).
- Selection of a like for like or suitable upgraded pump matched to the system and manifold.
- Safe isolation, removal and installation of the new pump with correct seals and fittings.
- Electrical connections checked and tested, with settings adjusted where applicable.
- Refill, venting and purging air to restore steady flow.
- Operational testing across zones, with basic balancing checks for even heat.
When this service is most useful
Book a pump replacement when the system is not circulating properly, even though the heat source is working.
Common signs include rooms staying cool, intermittent heat, noisy pump sounds, repeated airlocks, or a pump that is hot but not moving water. It is also suitable where the pump has seized after long periods off, or is leaking at the housing.
What happens during the visit
The engineer will confirm the fault, identify the correct pump specification, then isolate and replace the unit with minimal disruption.
In most cases the work involves draining a small section, fitting the new pump, restoring pressure, removing trapped air, and checking that flow and controls respond as expected. If a blockage, dirty water or a control fault is found, you will be advised on the next best step before extra work is started.
After replacement: testing, efficiency and reliability
Once the pump is running, the system is checked for leaks, noise and stable temperatures.
You will get practical guidance on settings, run times, and any water quality steps (such as inhibitor) that help the new pump last longer and keep heat distribution even across the circuits.