Commercial Hot Water Systems

Heating & Cooling Specialists

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Rinnai & Brivis Specialists

Immerge Group is a trusted and authorised Rinnai and Brivis service partner in Melbourne’s south east suburbs. Our fully qualified technicians specialise in hot water systems, gas heating, ducted heating, and evaporative cooling—delivering fast, reliable, and professional service tailored to your needs.

Hot Water Systems

Fully installed residential and commercial hot water systems. Quality Rinnai products suitable for all applications.

Rinnai Gas Heaters

A huge range of space & ducted heating options will ensure you find the perfect solution to keep your family warm this winter.

Rinnai Air Conditioners

Single or multi head and ducted reverse cycle split system air conditioners. Cost effective evaporative cooling systems.

Hot Water Service

Rinnai hot water service and repairs. Service and maintenance on commercial and residential HVAC appliances

Rinnai Commercial Hot Water Service & Sales

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Immerge Group Are Melbourne's Rinnai Commercial Hot Water Service Specialists

At Immerge Group, we specialise in the supply, installation, and servicing of Rinnai commercial hot water systems across Melbourne. Whether you’re outfitting a new development or upgrading an existing system, our team delivers expert commercial hot water installation Melbourne businesses can rely on.

We work extensively with premium systems like the Rinnai Infinity 32  continuous flow unit—ideal for delivering efficient, high-volume hot water in demanding environments to large scale Rinnai commercial systems. From tailored system design to scheduled servicing, we provide end-to-end solutions for every commercial setting.

Whether it’s a hot water service for schools, hospitals, or apartment complexes, we ensure every Rinnai system operates reliably, efficiently, and in full compliance with industry standards.

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Why Choose Immerge Group for Your Business?

Authorised Rinnai & Brivis Service Partner

Trusted by Australia’s leading brands for expert commercial servicing and installation.

Specialists in Commercial Hot Water & Heating Systems

Trusted in hospitals, schools, apartments, and industrial sites

Fast Response & Priority Commercial Support

Dedicated commercial team with rapid turnaround for urgent repairs and maintenance.

Full Compliance & Safety Assured

Experienced with OH&S, compliance reporting, and commercial water temperature regulations.

Custom Design, Installation & Upgrades

Scalable systems designed for your exact hot water or climate control requirements.

End-to-End Service & Maintenance Plans

From design to ongoing maintenance, we keep your systems running at peak efficiency.

Energy-Efficient, Cost-Saving Solutions

We help reduce operational costs with high-performance, eco-friendly systems.

Local Experts in Melbourne’s South East

On-the-ground support, servicing all major commercial zones with local technicians from Hallam, Dandenong to Melbourne CBD.

Immerge Group Core Values

Integrity

We believe our customers should be treated honestly, ethically, and fairly with every interaction.

Great Service

Putting our customers first and listening to their needs is the basis to a long term partnership.

TEAMWORK

We succeed due to the skills, hard work and valued contributions of all out team members.

Value

Delivering the very best in all we do and providing our customers with value for money.

The team at Immerge Group strongly believe the key to a successful business is not winning new customers but earning trust and creating long term loyal customers.  Focusing on a customer’s needs and providing a quality service at a fair price is the simple, but proven formula that builds lasting relationships.

Say what you do, and do what you say’

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Trusted Partners

Immerge Group is proud to be the trusted service and installation partner to some of the biggest names in the industry.

Registered Builder Network

Immerge Group is a proud partner of the Registered Builder Network.

Registered Builders Network

Latest News

See below for the latest news at Immerge Group. Here you’ll find tip’s and tricks plus the latest seasonal promotions and offerings.

Get A Quick Quote On A Project!
Call 03 9796 3725