Maintain Peak Efficiency
A heat pump’s efficiency (CoP) declines gradually if left unserviced. Dirty evaporator coils reduce heat transfer, slightly reduced refrigerant charge affects system thermodynamics, and worn components reduce compressor efficiency. An unserviced heat pump can see its CoP drop by 10–20% over 2–3 years — directly increasing your electricity bills. Annual servicing restores the system to peak efficiency.
Protect Your Manufacturer Warranty
Most heat pump manufacturers require annual servicing by a qualified engineer to maintain warranty validity. Brands including Mitsubishi, Daikin, Vaillant, and Worcester Bosch specify this in their warranty terms. Without service records, a warranty claim can be refused — leaving you facing the full cost of repairs.
Extend System Lifespan
Regular servicing identifies and addresses small issues before they cause major failures. A failing capacitor caught during a service costs £50 to replace; left undetected, it can cause compressor failure costing £1,500+. Heat pumps that are serviced annually routinely last 20+ years; those that aren’t may fail after 10–12.
Catch Safety Issues Early
Refrigerant leaks, electrical faults, and safety device failures are all items checked during a heat pump service. While heat pumps are safer than gas appliances, these checks provide important assurance — particularly for the electrical components.
Legal Obligations
For commercial properties with heat pumps containing more than 5 tonnes CO₂e of refrigerant, annual leak testing is legally required under F-Gas regulations. The engineer must be F-Gas certified. Even for residential systems, using an F-Gas certified engineer for any refrigerant-related work is essential.
Book Your Service Today
UK Heat Pump Servicing provides annual service visits across the whole of the UK, carried out by F-Gas certified, MCS-accredited engineers. Book online or call 0333 041 5130.
Sources: the MCS scheme and Health and Safety Executive.
