Hot Water Plumber in Sydney's Inner West

Hot water problems can disrupt businesses, homes, and rental properties across the Inner West. From a leaking unit to a system that no longer keeps up, Richard Knight Plumbing installs, repairs, and replaces electric, gas, heat pump, solar, and under sink hot water systems.

Available Monday to Friday, 7 am to 5 pm

Hot Water Services

  • Electric hot water tank installation and replacement by licensed Inner West plumber

    Electric Hot Water

    Electric hot water remains a straightforward option for many properties, particularly where an existing storage unit is due for attention. Richard Knight Plumbing installs, repairs, and replaces electric systems, taking account of available space, condition, and daily demand. The right result is not simply a new tank, but reliable hot water that suits the way your property is used.

  • Rinnai Infinity 26 continuous flow gas hot water system installed on exterior wall

    Gas Hot Water

    Gas hot water can suit properties with an existing gas connection, especially where reliable recovery matters. Richard Knight Plumbing installs, repairs, and replaces instant gas hot water and storage systems. Instant gas hot water heats water as it passes through the unit, rather than storing it in a tank, making available space, demand, and location worth considering from the outset.

  • Energy-efficient heat pump water heater installation by licensed Inner West plumber

    Heat Pump Hot Water

    Heat pump hot water is worth considering when efficiency is part of the conversation. Rather than heating water directly, these systems draw heat from the surrounding air. Richard Knight Plumbing can help assess whether the available space, daily demand, and location are right for a heat pump, including practical considerations such as access, airflow, and noise to nearby neighbours.

  • Plumber installing Thermann under-sink hot water unit in kitchen cupboard

    Under-Sink Hot Water

    Under sink hot water systems provide a compact source of hot water exactly where it is needed. They can be useful in cafés, kitchens, offices, and small commercial spaces where a distant main system creates long waits at the tap. Richard Knight Plumbing installs, repairs, and replaces under sink units, helping keep cleaning, food preparation, and handwashing areas working smoothly.

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Reviews running hot

  • Richard Knight recently did two plumbing jobs for us: dealing with a hot water leak behind the wall tiles in our upstairs bathroom, and replacing and installing a new gas instant hot water service. In both cases the quotes he provided were very reasonable. He was prompt, careful, efficient and easy to deal with. I can recommend him most highly and I would certainly use him for any future plumbing work.

    Charlie Macaskill
  • Richard and his team have always been responsive and helpful with my plumbing issues over the last 15 or so years. When I had a hot water crisis this morning a new unit was installed and working by early afternoon. I would highly recommend Richard Knight Plumbing to everyone.

    Amanda Hawkins
  • Richard and his team were great with our water heater replacement. They were timely, gave us great advice and were friendly and professional to deal with. The electrician Daniel went above and beyond to assist us with some issues with our switchboard. Would highly recommend!

    Alice Keegan
  • We've used Richard Knight Plumbing, our local plumber, over the past 16 years to install a new bathroom, replace a hot water system and other general plumbing works. He's reliable and delivers excellent quality workmanship every time, so can definitely recommend him.

    Vaughan Parsons
  • An excellent service from Richard, as usual. He arrived promptly, fixed the plumbing problem and was very pleasant to deal with. I would highly recommend him.

    Heather Keens
  • Richard recently replaced the hot water tank for us. Great service, on time, on budget and excellent workmanship.

    Ben Crossett
  • Richard was reliable, lovely, efficient and budget friendly. As always. Highly recommend!

    Jonathan Meisner
  • Richard was friendly, professional and informative. I highly recommend his services.

    Kylie Gregory
  • Richard is reliable, responsive and did a great job. So glad I found him.

    Lisa Vincent
  • Punctual and professional service from Richard, would highly recommend.

    Peter Fawcus

Frequently Asked Questions

  • Why has my hot water suddenly gone cold?

    Sudden cold water can be caused by a failed element, a pilot or ignition fault, a problem with the controls, or a tripped electrical circuit. The first step is identifying the system and whether the loss affects every outlet or only one area of the property. That helps separate a whole system fault from a local plumbing issue.

  • Is a leaking hot water system urgent?

    A small drip can still become a larger problem, particularly where water is reaching floors, walls, or wiring. If you can see corrosion around the unit, a leaking tank, or water pooling, arrange an assessment promptly. Do not attempt repairs yourself, and avoid touching electrical components around the system.

  • What is the difference between storage and instant gas hot water?

    Storage systems heat and hold a set volume of water in a tank. Instant gas hot water heats water as it passes through the unit, rather than relying on stored water. The best fit depends on available space, daily demand, existing gas supply, and the number of outlets likely to be used at the same time.

  • Does solar hot water still work on cloudy days?

    Yes, although output can be lower when sunlight is limited. Most solar hot water systems include a booster, which can use electricity or gas to keep hot water available when solar gain is not enough. Booster setup, roof position, and storage capacity all influence how the system performs across the year.

  • Can you help with hot water at a rental or commercial property?

    Yes. Hot water faults can affect a shared facility, a single tenancy, or a whole building, depending on how the system is set up. Richard Knight Plumbing can assess the issue, communicate the required work clearly, and help business owners, occupants, and property managers understand the practical next step.

  • Why am I running out of hot water sooner than usual?

    Hot water that runs out sooner than it used to may point to a system that is no longer meeting demand, or a fault that is limiting its output. Changes in daily use, a failing component, sediment, or a temperature issue can all play a part. A proper assessment looks at the unit's age, capacity, condition, and daily use.

  • Should I repair or replace an older hot water system?

    That decision depends on age, condition, and how well the system still suits your property. A repair can be sensible where the issue is isolated. Replacement may be more practical when faults keep returning, the unit is leaking, or your hot water needs have changed. An assessment gives you a clear basis for choosing.

  • Is a heat pump suitable for my Inner West property?

    Heat pump systems can suit properties with appropriate outdoor space and considered positioning. Access, airflow, and noise to nearby neighbours are important, particularly at apartments, rental properties, and terrace homes. An assessment can show whether daily demand, the site, and system placement are a good match.

  • When does an under sink hot water system make sense?

    An under sink unit is useful where hot water is needed at one point of use and the main system is too far away to be convenient. They are often suited to cafés, kitchens, offices, and small work areas, providing warm water at the tap without a long wait. The right unit depends on temperature, use, and volume.

  • What information should I have ready before requesting a quote?

    Helpful details include the system's age, the type of hot water system, what has changed, and whether there are visible leaks or error messages. A photo of the unit and its label can also help. Knowing whether the issue affects one outlet or the whole property gives a clearer starting point for advice and an obligation free quote.

Available Monday to Friday, 7 am to 5 pm