Why DIY Isn’t Recommended For Hot Water System Installation

Why DIY Isn’t Recommended:Risks of Hot Water System Installation

DIY (Do-It-Yourself) repairs have gained popularity in recent years, thanks to the abundance of online tutorials and how-to videos. While DIY repairs may seem like a cost-effective and convenient option, they are not always the best choice. In Queensland, it is a legal and regulatory requirement that all plumbing, gas and restricted electrical work, including hot water system installation, is completed by a plumber licenced with the Queensland Building and Construction Commission (QBCC).

We recommend always checking contractor’s licences using the QBCC’s licensee register

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In this article, we’ll examine the potential risks, safety concerns, warranty and insurance issues, and the risk of improper installation associated with DIY repairs. By the end of this article, you’ll have a better understanding of why DIY  isn’t recommended for hot water installation and the benefits of hiring a professional for your repair needs.


DIY (Do-It-Yourself) hot water installation can pose several compliance risks, primarily related to system warranty, building codes, and legal requirements.

  1. DIY installations void manufacturer’s warranties which require professional installation to remain valid.
  2. Hot water installation must adhere to local building codes and regulations such as proper venting, insulation, drainage, or protection against scalding. Failing to comply with building codes can result in fines and penalties. The QBCC requires a Form 4 to be completed with hot water system installation to register the notifiable work. The QBCC conducts audits to ensure compliance and work meets plumbing code and standards.
  3. Resale and Home Insurance: Non-compliant DIY installations can impact the resale value of a property due to potential safety risks and legal issues for the prospective buyer. Any self-installed hot water system can jeopardise the sale of the property.
  4. Home insurance policies may not cover damages caused by improper or unlicensed installations, leaving homeowners financially vulnerable in case of accidents or failures.

Safety Hazards

When it comes to DIY plumbing repairs and installations, there are several potential safety hazards that one should be aware of. These hazards include:

  1. Water leaks: If not installed correctly, damage can occur to the surrounding areas and even the structural integrity of the building.
  2. Gas leaks: Working on gas lines for hot water systems can be dangerous.
  3. Electrical hazards: Hot water systems may involve working with electrical components, such as heating elements and thermostats. Incorrect electrical work can result in electrocution or fire.
  4. Burns: Coming into contact with hot water or system components can result in severe burns.

Improper Installation

Here are some of the risks associated with incorrectly installed hot water systems:

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Benefits of hiring a professional plumber.

Hiring a professional plumber to install a hot water system can be beneficial in many ways. This graphic shows our 7 benefits of using a professional plumber which we have explained below.

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Professional plumbers:

  • Have knowledge, training and experience to save you money with cost effective advice including whether to repair or replace your hot water system.
  • Are familiar with all the regulations and codes that apply to hot water systems and can ensure that the installation is compliant and registered with the QBCC to avoid any future legal issues.
  • Will repair or install your hot water system in the most efficient way minimising disruption to your daily routine.
  • Will consider factors such as the size of your home, the number of occupants, and your hot water usage patterns to determine the appropriate size of your hot water system and maximise energy efficiency.
  • Have the right tools and replacement parts to ensure that the repair or installation process is smooth and efficient.
  • Have a workmanship guarantee and will honour the warranty on your hot water system giving you long term peace of mind.
  • Carry full public liability insurance for the extreme case where something goes wrong.
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Master plumber association of Queensland provides this guide on their website for considering a contractor to repair or replace your hot water system.

How to choose the right plumber for your hot water system installation.

Did you know? We repair over 75% of issues with Hot Water Systems without the need for replacement!

Please call, and we will be able to assist you today.

(07) 3878 4444

Our team will give you real, honest advice and a great price. All our work is 100% guaranteed.

Master Plumbers Association of Queensland provides this guide on their website for considering a contractor to repair or replace your hot water system. As it is important to ensure the job is done properly and safely we recommend considering the following factors when choosing your plumber:

  • Licenced: Make sure that the plumber you choose is licensed and certified to work in your area. This ensures that they have the necessary training and knowledge to install hot water systems safely and correctly.
  • Experience: Look for a plumber who has experience installing the type of hot water system you want, and who has been in business for several years. Experienced plumbers are more likely to have encountered a wide range of installation issues and can provide effective solutions quickly.
  • Online reviews: Before choosing a plumber, read online reviews from previous customers. This can give you an idea of their level of professionalism, quality of work, and customer service.
  • Recommendations: If someone you know has had a positive experience with a plumber, it is more likely that you will too. Ask them about the plumber’s level of professionalism, timeliness, quality of work and whether they would hire them again.
  • Price: Look for a plumber who provides a clear and transparent pricing structure, with no hidden fees or charges.
  • Customer service: Look for a plumber who is easy to communicate with, and who is responsive to your questions and concerns.

Taking into consideration all the points mentioned above, we believe Conrad Martens Plumbing and Hot Water can provide you with the best value for money hot water system repairs and installations in Brisbane.

Yours in keeping the good life flowing!


The Conrad Martens Team

(07) 3878 4444

For the best price, service and advice!

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