Heat Pump Maintenance Cost Per Year UK
Budget £150–£300 per year for heat pump maintenance, averaged over its 20-year lifespan. That covers annual servicing, occasional repairs, and parts — comparable to what you pay for a gas boiler.
Include maintenance in your total cost calculation
Calculate total ownership costs →In this guide:
Annual Maintenance Cost Summary
Annual service
£100–£200
Repairs (averaged)
£40–£80
Parts (averaged)
£20–£40
Total per year
£150–£300
Averaged over 20-year lifespan. Early years cost less; later years cost more.
Annual Servicing: £100–£200
A standard service takes 1–2 hours covering outdoor unit inspection, coil cleaning, electrical connections, pressures, temperatures, controls, and hot water cylinder. For full detail, see our service cost guide. Our comprehensive cost guide covers how servicing fits into total ownership.
Repairs: What Breaks and What It Costs
| Category | Examples | Cost | Likelihood |
|---|---|---|---|
| Minor (£50–£300) | Sensor, PCB, expansion vessel, valves | £50–£400 | Fairly common after yr 5 |
| Moderate (£300–£800) | Fan motor, reversing valve, water pump, refrigerant leak | £200–£800 | Possibly once in 20 years |
| Major (£800–£2,500) | Compressor, heat exchanger | £800–£2,500 | Rare; covered by warranty yrs 1–10 |
Average Repair Cost by Period
- Years 1–5 (warranty): £0–£20/year out of pocket
- Years 6–10: £30–£60/year
- Years 11–15: £60–£100/year
- Years 16–20: £80–£150/year
Parts Replacement Over Time
- System inhibitor/antifreeze: £30–£80 every 3–5 years
- Magnetic filter element: £20–£50 every 5–10 years
- Anode rod (cylinder): £50–£100 every 3–5 years
Comparison with Gas Boiler Maintenance
| Cost Item | Gas Boiler (15-yr life) | Heat Pump (20-yr life) |
|---|---|---|
| Annual service | £80–£120 | £100–£200 |
| Repairs (averaged) | £50–£120 | £40–£80 |
| Parts | £20–£40 | £20–£40 |
| Total per year | £150–£280 | £160–£320 |
Similar annual costs, but the heat pump’s longer lifespan avoids a full replacement cycle.
Get quotes that include aftercare and service plans
Request free quotes →Ask installers about service plans. BUS grant applied. No obligation.
How to Minimise Maintenance Costs
- Choose quality installation — the biggest factor in long-term costs
- Never skip annual services
- Perform basic DIY maintenance between services
- Consider a service plan after warranty expires
- Address issues promptly — small problems caught early cost less
Budgeting: A Practical Approach
| Period | Budget Per Year | Notes |
|---|---|---|
| Years 1–5 | £100–£200 | Service only; warranty covers repairs |
| Years 6–10 | £200–£300 | Service + occasional repairs |
| Years 11–15 | £250–£350 | Consider service plan with repair cover |
| Years 16–20 | £300–£400 | Higher repair likelihood |
Alternatively, set aside £200/year from day one. Over 20 years: £4,000 — more than enough for most systems. For savings on electricity to help offset maintenance costs, consider solar panels.
Plan your total cost of ownership accurately
Our calculator includes installation, running costs, and maintenance for a complete 20-year picture.
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Frequently Asked Questions
How much does heat pump maintenance cost per year?
£150–£300 averaged over 20 years. Covers servicing (£100–£200), repairs (£40–£80), and parts (£20–£40).
Are heat pumps expensive to maintain?
No. Comparable to gas boilers (£150–£300 vs £150–£280/year). Fewer moving parts means fewer repairs.
What is the most expensive heat pump repair?
Compressor replacement: £1,500–£2,500. Rare and covered by warranty for 5–10 years.
Do heat pumps need more maintenance than gas boilers?
Both need annual servicing. Heat pumps typically need fewer repairs overall.
Can I maintain my heat pump myself?
Basic tasks (clearing debris, checking pressure). Annual service by a qualified engineer.
What happens if I do not maintain my heat pump?
Efficiency declines, warranty voided, shortened lifespan (12–15 years instead of 20–25).
About Heat Pump Maintenance Costs
Heat pump maintenance costs £150–£300/year averaged over a 20-year lifespan, covering servicing, repairs, and parts. This is comparable to gas boiler maintenance. This guide is part of our resource hub covering costs, running costs, installation, and grants. For combining solar with a heat pump, visit Home Solar Guide.