Rinnai Hot Water Installation Brisbane

Trusted on the Northside for over 20 years
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Practical Support for Existing Rinnai Hot Water Systems
If your Rinnai unit is not performing as it should, we can inspect the system and provide options for repair or replacement. We stock common Rinnai parts and understand the installation requirements for their most popular models.
Customers with older or failing systems may wish to consider switching to an alternative brand with stronger warranty and service support. However, if your system is in good condition and functioning efficiently, we are happy to assist with servicing, maintenance, or replacement of like-for-like units.
Our plumbers are fully licensed and bring over two decades of experience working with gas, electric, and continuous flow hot water systems across Brisbane. We ensure all work complies with Australian plumbing standards.





Hear From Our Clients
Why Choose LJM Plumbing for Your Hot Water Needs?
While we do not actively promote new Rinnai hot water installation, we remain committed to offering complete plumbing support for customers who currently use or wish to continue using Rinnai products. Our team provides:
- Diagnostics and performance assessments for existing Rinnai systems
- Repairs or like-for-like replacements
- Independent advice on whether a Rinnai unit is the right fit for your needs
- Guidance on alternative hot water systems if you're considering switching brands
If you are unsure whether your current Rinnai system is worth repairing or replacing, we offer clear, honest advice based on our experience and product knowledge.


Considerations When Replacing a Rinnai System
In many cases, homeowners may contact us about upgrading or replacing an older Rinnai system due to age, efficiency, or performance issues. Our team evaluates factors such as hot water usage, household size, space availability, and plumbing layout before recommending the best solution.
We offer brand comparisons and can supply and install systems from leading manufacturers such as Rheem, Dux, and Aquamax, who provide extensive warranties and excellent after-sales support.
Frequently Asked Questions
- Do you still install Rinnai hot water systems?
Yes. While we no longer recommend Rinnai for new installations, we will install a Rinnai system if requested or if a like-for-like replacement is the most practical option.
- Why don’t you recommend Rinnai for new installations?
We have experienced issues with Rinnai’s after-sales service and warranty support, which has impacted some of our clients. We prefer to recommend brands with proven service reliability.
- Can you repair my existing Rinnai hot water system?
Yes. We can assess and repair most common Rinnai faults, provided parts are available and it remains cost-effective to do so.
- Will you remove my old Rinnai system during installation?
Absolutely. Our installation service includes removal and responsible disposal of your existing unit.
- Are Rinnai systems energy efficient?
Rinnai offers continuous flow and gas systems with reasonable energy performance. However, depending on your property, more efficient alternatives may be available.
- Can I switch from Rinnai to another brand?
Yes. We provide unbiased advice and full installation services if you choose to switch to another brand.
- Do you provide emergency hot water replacement?
Yes. We offer 24/7 service across Brisbane and can usually provide same-day or next-day installation in urgent cases.
For trusted support with Rinnai hot water installation, repairs or replacements in Brisbane, contact LJM Plumbing, Gas and Drainage today. We provide transparent advice and quality service tailored to your needs.
