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Immerge Group — 1
Immerge Group — Customer photo
Immerge Group — Customer photo
Immerge Group — Customer photo
Immerge Group — Customer photo
Hot Water & Gas

Immerge Group

4.9 · 159 reviewsSee reviews ↓
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About the company

Immerge Group is an Authorised Rinnai Service Partner and an Authorised Brivis Service Partner. The company specialises in domestic and commercial hot water systems in Melbourne's South and South East suburbs. It provides supply, installation, and servicing of Rinnai commercial hot water systems across Melbourne. Immerge Group serves commercial settings including schools, hospitals, and apartment complexes.

What customers say

Based on genuine customer reviews

Immerge Group carries out heat pump and hot water installations around Melbourne, and the accounts customers give focus on how consistently those jobs are managed. Reviewers regularly describe assistance with choosing a heat pump suited to a large household and with rebate paperwork, while Rinnai systems and air-conditioning quotes appear alongside the primary installation work. Punctuality is a theme that surfaces again and again: plumbers and electricians arrive on the agreed day, complete the work promptly and check the system is operating before departing.

The tidiness of the crews is noted too, with old storage tanks and new packaging removed and no mess remaining. Named office members such as Kellie, Jayden and Julian earn praise for their knowledge, efficiency and clear communication, from the initial enquiry through quoting and beyond. Customers also remark that quotes are easy to follow and fairly pitched, and that the tradespeople on site are courteous and professional. The work described covers heat pump hot water services, replacement of existing units, tap and pressure repairs, and practical guidance on resolving system faults, all handled with the same attentive manner.

Reviews (15 of 159)

Reviews are taken from publicly available sources.

AK
Andrew Kay1 July 2026

Quick to reply to my initial enquiry with the exact information I had requested. The quote was straight forward and easy to understand. The job was arranged and tradesmen turned up on the right day right on time. The tradesmen were friendly, polite and professional, got the installation done quickly, didn't leave any mess. made sure it was working before they left. Took away the old storage tank and the packing from the new one. I was very impressed, can't fault the service, highly recommend them.

AR
Alex Rodriguez5 May 2026

The Immerge Group’s installation of my Heat Pump hotwater service was excellent. From my first contact with Jayden in Head Office to the installation with the plumbers and electrician. The results were outstanding, well done team!

NN
Niranjan Navaratnarajah17 April 2026

I had Julian attend my property to replace the front tap and the part as the pressure had dropped. What a sterling job he did. He seemed to know everything fixed the problem very polite and great customer demeanour he had. He fixed the hot water system issue gave tips how to address things. He and his partner were amazing. Thank you Julian and classic example of great customer service that I will remember. 5 stars to you mate. Keep up the great work.

JD
Julie Doensen14 April 2026

Fantastic experience from start to finish, help with choosing the suitable heat pump for a large family, support with applying for the government rebate, plumbers & electricians all came on time, great communication & cleaned up after themselves - i will 100% use this team again, thanks for all your help Kellie!

SH
Stephen Handby6 December 2025

All plumbers that attended were very polite and professional. Their work was exceptional. I highly recommend Immerge Group for any plumbing that you may need done.

BW
barry williams6 November 2025

Easy to deal with, quote was competitive and nothing was too much trouble. Kellie in Admin is a star, she is knowledgeable and helpful and nothing was too much trouble. The installers were knowledgeable, friendly and great guys. Thanks Immerge

SM
Steven Mc21 October 2025

I reached out to a few companies to replace my 18-year-old solar water heater that was making a humming noise. I was primarily directed to the Rinnai Gas Continuous Flow System. The most frustrating aspect was the difficulty in scheduling a quote. Despite this, it made me feel like the companies genuinely didn't want my business. I did have one person come out to give me a quote. He recommended the Rinnai Gas Continuous Flow System because it clears up space on the garden path since it doesn’t require a water tank. One company wanted me to send photos of my existing system so they could provide me with a written quote via email. This quote was the most affordable among the three I received. However, when I called Immerge Group in Hallam, the first person I spoke to was Jaden. I explained to him that I was considering replacing my water heater system because I had noticed a humming noise emanating from it. He provided me with some information about their Continuous Flow System, but I decided to leave it at that. The following week, I called Immerge Group again to obtain a quote. This time, I spoke to Kellie, who was very helpful and understanding over the phone. I informed her that I would get a few quotes before making a decision. I called Kellie to check if she could match the lowest quote I had received. I had sent the quote via email, The following day, I received a call from Kellie asking if I could get the company to place the modern number before they could match the price. Because of the hassle of trying to get someone to come out was not worth it. In the end, I decided to go with Immerge Group, even though the price was $110 more. Immerge Group is an excellent company to work with. They’ve been incredibly reliable, even after the system was installed. I noticed water on the floor in my garden later that day, and it was coming from the new system. I immediately contacted Immerge Group, and they came out to fix the issue within an hour. Even a few days later, I could smell gas, so they sent one of their technicians out to replace a part. I’ve known people who’ve had problems with their systems and thought it was impossible to get the companies to come out. But Immerge Group has always been able to help. They’ve provided excellent service and treated me like a valued customer.

Contact

📍Factory 7/117-119 Abbott Rd, Hallam VIC 3803
☎+611300527481
🌐http://www.immerge.com.au/
Working hours
Monday08:00–17:00
Tuesday08:00–17:00
Wednesday08:00–17:00
Thursday08:00–17:00
Friday08:00–17:00
SaturdayClosed
SundayClosed
Open in Google Maps

Hot Water & Gas in Melbourne compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 12 businesses in this category in Melbourne are compared.

RankProviderRatingReviewsOpen Sat.
1Expert Plumbing & Gas Services★ 5,0755Yes
2Sven's Plumbing & Gas★ 5,0534Yes
3Melbourne Gas & Air Conditioning Group★ 5,0361No
4Amari Plumbing and Gasfitting★ 5,0167Yes
5Victorian Hot Water★ 5,0138Yes
10Immerge Group (this page)★ 4,9159No

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