Why Servicing Your Air Source Heat Pump Could Save You a Fortune

You wouldn’t drive your car for years without a service. You wouldn’t ignore a boiler service reminder year after year. So why do so many heat pump owners overlook the one thing that keeps their system running at its best?

Air source heat pumps are brilliant pieces of technology. Reliable, efficient, and built to last. But like any mechanical system working hard to heat your home day in, day out – they need looking after.

Here’s everything you need to know about ASHP servicing, and why it matters more than most people realise.

Do Air Source Heat Pumps Actually Need Servicing?

Yes – and regularly.

It’s a common misconception that heat pumps are largely maintenance-free because they have fewer moving parts than a traditional boiler. While it’s true they’re generally very reliable, that reliability doesn’t happen by accident. It’s the result of a well-installed system that’s been properly maintained.

Manufacturers typically recommend an annual service. Some systems may be fine with one every two years depending on usage and conditions – but once a year is the standard recommendation, and for good reason.

Skipping services doesn’t just risk a breakdown. It can quietly reduce your system’s efficiency over time, meaning you’re paying more to heat your home than you should be – without even realising it.

What Does an ASHP Service Actually Involve?

A thorough heat pump service covers a lot more than a quick look over. When Warmaway carry out an ASHP service, here’s what we check:

Refrigerant levels – Low refrigerant is one of the most common causes of reduced efficiency and can cause serious damage if left unchecked

Filters & coils – Dirty filters and blocked coils force the system to work harder than it needs to, pushing up running costs

Fan & compressor checks – Making sure all mechanical components are operating correctly and showing no signs of wear

Pipework & connections – Checking for any leaks, corrosion, or loose connections that could develop into bigger problems

Controls & thermostat calibration – Ensuring your system is responding correctly and running at the right temperatures

Flow and return temperatures – Verifying the system is operating efficiently and delivering heat effectively throughout the property

Overall system performance check – Comparing current performance against expected output to spot any drop-off early

It’s a detailed process -and it’s the kind of thing that should only be carried out by a qualified engineer who knows what they’re looking at.

What Happens If You Don’t Service It?

In the short term, probably nothing obvious. That’s partly what makes skipping a service feel harmless.

But over time, the consequences stack up:

Reduced efficiency – A poorly maintained heat pump can lose a significant amount of its efficiency without any obvious signs. You’ll just notice your energy bills creeping up and wonder why.

Increased wear – Components working harder than they should wear out faster. What might have been a minor fix during a routine service becomes a costly repair further down the line.

Voided warranty – Many manufacturers require evidence of regular servicing to honour their warranty. Skip your annual service and you could find yourself without cover when you need it most.

Unexpected breakdowns – No one wants their heating to fail in the middle of January. Regular servicing catches problems before they become emergencies.

Shortened system lifespan – A well-maintained heat pump can last 20 years or more. Neglect it and you’ll be looking at a replacement much sooner than necessary.

How Much Does an ASHP Service Cost?

Considerably less than a repair. Or a replacement.

A routine annual service is a straightforward, affordable piece of maintenance that protects a system worth thousands of pounds. When you look at it that way, it’s one of the easiest financial decisions you can make as a homeowner.

Get in touch with us for current pricing – we’ll give you a clear, honest quote with no hidden costs.

Signs Your Heat Pump Might Need Attention Sooner

Don’t wait for your annual service if you notice any of the following:

• Your energy bills have increased without a clear explanation
• The system is taking longer than usual to heat your home
• Unusual noises coming from the outdoor or indoor unit
• Ice build-up on the outdoor unit that isn’t clearing
• The system is cycling on and off more frequently than normal
• Rooms that used to heat evenly are feeling inconsistent

Any of these could point to an underlying issue that’s worth getting checked sooner rather than later.

Already Have a Heat Pump? When Did It Last Get Serviced?

If you can’t remember – or the honest answer is never – now is a good time to book one in.

At Warmaway we service all makes and models of air source heat pump. We’re experienced, qualified, and we’ll give you a straight assessment of how your system is performing and what, if anything, needs attention.

No jargon. No unnecessary work. Just honest, professional servicing from engineers who know heat pumps inside out.

Book Your ASHP Service Today

Don’t wait for something to go wrong. A quick annual service keeps your system running efficiently, protects your warranty, and gives you peace of mind that your heating will be there when you need it.