What are the maintenance requirements and costs for an ASHP?

Straight answers from Michael Paini, our director and lead heating engineer. Watch the video, or read his answer below.

Michael Paini answering: What maintenance does an ASHP need, and what does it cost?

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Michael's answer in writing

To keep your heat pump running smoothly, it’s important to service the heat pump, cylinder, and controls annually. It’s also a requirement of most manufacturers’ warranties to have the heat pump serviced every year.

The cost of an annual service typically ranges from £200 to £350, including VAT at 20%. Pay-monthly service plans may also be available.

Typical service tasks include:

Cleaning the evaporator and outdoor unit
Cleaning system filters
Servicing the hot water cylinder
Recharging expansion vessels
Monitoring and optimizing the heat pump controls and performance
Maintaining exterior pipework insulation

Things you can do yourself include:

Keep system pressure between 1 and 1.5 bar
Report any leaks or faults as soon as possible
Refrain from changing settings that your trusted installer has configured for optimum comfort and performance

A heat pump can last up to 25 years, depending on installation quality, design, product, servicing, and usage. Manufacturer warranties typically cover the heat pump and controls for 5-7 years, hot water cylinders for 25 years, and other components for 2 years.

In short, regular servicing helps ensure your heat pump performs at its best for many years, delivering reliable comfort and energy efficiency.

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Michael answers your heat pump questions

We've filmed short answers to the ten questions people ask us most about air source heat pumps. Pick a question to watch Michael's answer, or read the full guide.

See the full heat pump guide

1What is an ASHP and how do they work?

2Is my house suitable for an ASHP?

3Are ASHPs noisy?

4Do I need planning permission for an ASHP?

5How much does an ASHP installation cost?

6How much does an ASHP cost to run?

7How efficient is an ASHP?

8This videoWhat maintenance does an ASHP need, and what does it cost?

9How do you choose your heat pump installer?

10What is the process for buying an ASHP?

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