What’s that hammering noise?

Why do I hear a hammering noise coming from my pipes? Is this a common plumbing issue and how can Doherty Plumbing Solutions help?

Emergency plumbing Glen Waverley

An anxious customer from Glen Waverley reached out to us, suspecting a fault in their hot water plumbing connection. They had heard strange noises coming from the pipework when the hot water taps were turned off in their laundry, bathroom and powder room.

Doherty Plumbing Solutions’ licensed plumbing professional George was at the scene to resolve the problem.

After an inspection, George detected the cause of the noise was water hammer occurring inside the connection.

He looked into the Aquamax gas storage heater unit outside the building and located the faulty duo valve that was quite old. After isolating the water supply, George replaced the old valve and re-connected the supply line directly to hot water outlet. Then, the plumbing fixtures inside the house were all tested. The situation was much improved!

Well done, George.

What is ‘water hammer’ effect?

Water hammer, or hydraulic shock, involves a sudden shock experienced by the water flow inside a pipeline, after it has encountered a blockage (such as a shut-off valve). Once the flowing water hits this block, the water molecules’ tendency is to retrace their flow in the opposite direction, when they collide with the incoming molecules. This sudden change in direction of the water creates a huge pressure surge moving pipes, causing a banging sound.

How can high water pressure damage pipes?

The increased pressure build-up due to a water hammer effect can not only damage pipelines, but also cause cracks that lead to water leaks. They can even harm the various valve systems in the plumbing connections, snowballing into additional effects on connected appliances. For example, it can blow off the diaphragm in pressure tanks resulting in irregular water flow, or affect water meters.

How to tackle the water hammer issue?

It is crucial to maintain the pipelines regularly with the help of professional services, such as Doherty Plumbing Solutions. Undertaking checks of the pipework, ensuring there are no blockages, and fitting pipes in correct alignment, are important first steps that can help in the long run.

Additional measures could also include the following:

  • Fitting valves that close slowly to prevent sudden blockage.
  • Ensuring pipelines have built-in provisions for air chambers, which act as shock absorbers to reduce the effects of accumulating pressure.

Who can help with water hammer issues?

Don’t let a water hammer issue cause extensive damage to the plumbing connections and fixtures. Act fast, TODAY!

At Doherty Plumbing Solutions, we are here to help you tackle the bang and prevent a potential disaster in your home or business.

Contact our team at:

Request a Call Back

Please include any relevant images you may have of work required.
Drop files here or
Accepted file types: jpg, jpeg, png, Max. file size: 4 MB, Max. files: 3.
    This field is for validation purposes and should be left unchanged.

    Great experience - notified me when they were coming and knew exactly how to fix a difficult problem in lightning time.
    The Crack Avatar
    The Crack
    4/23/2024
    The 3rd time I have used the Doherty team for Plumbing issues and I highly recommend them! Responsive, professional, polite and reasonably priced, all make for a great experience.
    Matt Lane Avatar
    Matt Lane
    2/29/2024
    The team at Doherty Plumbing provided exceptional services at very short notice to fix my hot water system. Their quote was very fair and honest quote where other plumbers were charging extortionate amounts for the same problem. They were able to fix the issue within the day and communicated very well. I highly recommend their services.
    Laura Avatar
    Laura
    11/06/2025
    Quick and efficient. The work was done as quoted and unlike many tradies they turned up when they said they would. Very happy with there work.
    Tony G Avatar
    Tony G
    12/13/2024
    Doherty Plumbing have been our plumbers at Paris Financial for many years. They are reliable, respective of our team and reasonably priced. I highly recommend them
    Patrick Mannix Avatar
    Patrick Mannix
    9/30/2025
    Prompt responses, competitive pricing and jobs completed in a timely manner. Would recommend and will use again for other jobs.
    Greg Wood Avatar
    Greg Wood
    10/01/2025
    I had an incredible experience with George from Doherty Plumbing. He was punctual, reliable and sorted out my leaking roof. Trustworthy and experienced. Would definitely recommend this small business if you are looking for excellent skills.
    Natalie King Avatar
    Natalie King
    11/03/2025
    Brian Doherty and his team provided first class service for several gas/electric requirements we had. The plumbing staff were excellent, fully capable, and very easy to work with. Most highly recommended service.
    PJB Avatar
    PJB
    9/13/2024
    Very quick response, great communication throughout and George was exceptionally courteous and helpful in finding a solution to my roof leak problem.
    Mandy Purcell Avatar
    Mandy Purcell
    9/25/2025
    Always reliable and responsive we have used them on multiple tasks.Matt installed a modem toilet onto a vintage drain without difficulty. I have recommended them to my friends
    John Moore Avatar
    John Moore
    7/13/2024
    For reliable plumbing services, call 03 9877 5775 or 0417 577 432