Share the pattern
Describe the symptom, any message and whether the concern is constant or intermittent.
Availability confirmed from postcode and system details
Investigation of reported loss of heating or hot water, unusual noises, leaks, control faults, poor circulation, defrost issues or error codes. Safe inspection of the heat-pump unit, controls, pipework, valves, electrical interfaces and associated cylinder or emitters, within the limits of the system and available documentation. Where a fault involves refrigerant, sealed circuits, electrical work or specialist components, the appropriate qualified person and system information should be established before work proceeds.
Investigation of reported loss of heating or hot water, unusual noises, leaks, control faults, poor circulation, defrost issues or error codes. Safe inspection of the heat-pump unit, controls, pipework, valves, electrical interfaces and associated cylinder or emitters, within the limits of the system and available documentation. Where a fault involves refrigerant, sealed circuits, electrical work or specialist components, the appropriate qualified person and system information should be established before work proceeds.
Describe the symptom, any message and whether the concern is constant or intermittent.
Use your postcode, system details and requested support to confirm the appropriate availability and appointment route.
A repair or diagnostic visit is shaped around the reported fault and the system behaviour that can be assessed.
Use the booking form to provide your postcode and choose the support you need. That information is used to confirm the right next step.
These public sources inform the guide. They do not establish service availability or describe work by Heat Pumps Service.
Official local context source.
Darlington Borough Local Plan 2016–2036: Proposed Submission Local PlanOfficial local context source.
Historic England: Stockton and Darlington Railway Carriage Works, List Entry 1121229Official local context source.
They can. Darlington includes designated heritage assets, including the Grade II listed Stockton and Darlington Railway Carriage Works. Before external equipment, penetrations or other visible changes are planned, check the building’s designation and any applicable planning or conservation requirements.
Darlington Borough Council says that the Boiler Upgrade Scheme provides grants for eligible low-carbon heating systems such as air-source heat pumps, and its home-energy page notes 0% VAT on qualifying energy-saving materials including heat pumps from 1 April 2022 to 31 March 2027. Eligibility and current rules should be checked through the linked official scheme guidance.