Air conditioning high-pressure hose replacement from $321

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4.9 • based on 14 reviews of 13 businesses

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Average rating for Air conditioning high-pressure hose replacement


4.9 • based on 14 reviews of 13 businesses

Air conditioning high-pressure hose replacement

How much does this replacement cost?

You turn on the AC, but ten minutes later you realise that it’s still hot and sticky.

What’s going on? You push the button and ramp up the fan, but all you get is a blast of hot air in the face.

You get the system inspected and you're advised the AC high-pressure hose is faulty and needs to be replaced.

So what sort of price can you expect to pay to replace an AC high-pressure hose?

It should come in around $489 to $904 give or take, depending on your vehicle.

Be aware that the cost includes vacuuming and recharging the system.

This may seem a high price to pay for replacing a hose, but it’s not just any hose.

As you will read below, it’s a very important part of the heating, ventilation and air conditioning (HVAC) system.

What is an AC high-pressure hose?

Your HVAC uses a refrigerant which transforms from a gas to liquid in cycles as it travels through different components of the system. It serves the function of absorbing heat and to also help in dispersing cold air.

The refrigerant travels as a gas under high pressure from the compressor to the condenser and then as a liquid from the condenser to the dryer.

In these sections of the process, the refrigerant flows through AC high-pressure hoses.

The high side hose is under the most pressure as it has pressurised liquid flowing through it.

The high side AC high-pressure hose is specifically designed and constructed to withstand pressure, heat and to contain the refrigerant.


Symptoms that the AC high-pressure hose needs replacing

  • AC is not cooling
  • There may be an obvious refrigerant leak around the hose
  • The hose is damaged or has come off
  • A pressure and temperature test identifies a leak
Air conditioning high-pressure hose replacement

How is the AC high-pressure hose replaced?

  • A leak test may be performed
  • The refrigerant will be removed from the system
  • The damaged or failed high-pressure hose will be removed and a new one installed
  • Air is removed from the system by vacuum and the system is recharged
  • AC pressure and temperature may be tested
  • HVAC system will be tested to make sure the air conditioning is working as it should.

Tips to remember

  • AC components need to be handled by qualified technicians. Do not attempt DIY due to the high-pressure gas and liquid involved.
  • If you notice the AC is not working or that there are leaks around the high-pressure hose, have the system looked at as soon as possible.
  • Do not run your HVAC system if you suspect a refrigerant leak.

How important is replacing the AC high-pressure replacement?

If you don’t have the high-pressure hose replaced, the refrigerant will leak out of the system.

If you continue to run your AC with low or no refrigerant then you will eventually damage other components.

Replacing a high-pressure hose is a less expensive alternative to damaging the whole system, which can happen!

You could be up for thousands of dollars to repair the HVAC system if its not fixed.

If you rely on air-conditioned comfort in the car then you will want to have it fixed.

There is nothing worse than getting out of the car looking and feeling like you have just run a marathon.

Need your AC high pressure hosed replaced and looking for an expert to do the job?

Get an AutoGuru qualified mechanic onto the job.