Tamas Mechanical

Rinnai - Tankless Water Heater Repair Services

Rinnai - Tankless Water Heater Repair & Installation Mississauga

High-Efficiency Tankless Heating for Endless Hot Water

Welcome to Rinnai, a global leader in tankless water heating solutions engineered for performance, efficiency, and continuous home comfort. Rinnai systems deliver hot water on demand with exceptional reliability and smart energy use.

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Brand Introduction

About Rinnai: Advanced Tankless Technology Designed for Superior Comfort

Rinnai has earned worldwide recognition for producing premium tankless water heating systems that combine high efficiency, strong performance, and long-lasting reliability. Using state-of-the-art heating technology, Rinnai systems provide continuous hot water while minimizing energy consumption and space requirements. Known for exceptional durability and intelligent operation, Rinnai is the top choice for modern homes seeking efficiency, performance, and everyday comfort. With a continued focus on innovation and sustainability, Rinnai remains a leading force in water heating technology.

Rinnai stands on three core values:

Efficiency: Smart heating technology built to significantly reduce energy use and utility costs.
Performance: Continuous hot water supply for even the highest-demand households.
Reliability: High-quality manufacturing ensures long-lasting and trouble-free operation.

Product Range

Explore Rinnai’s Advanced
Tankless Water Heating Systems

Rinnai offers cutting-edge water heating solutions built to support modern home comfort efficiently and reliably.

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Tankless Water Heaters

Rinnai tankless water heaters deliver endless hot water the moment you need it. High-efficiency heating and condensing technology reduce energy usage while providing strong, consistent output for showers, appliances, and everyday household needs.

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Combination Boilers

Rinnai combi boilers provide both domestic hot water and home heating in a compact system. Designed for space savings and reliable temperature control, these units maximize energy performance and year-round comfort.

Key Features

What Makes Rinnai Systems Stand Out?

Endless Hot Water Supply:
Rinnai’s tankless technology ensures a continuous supply of hot water, eliminating wait times and shortages.

Energy-Saving Operation:
With high-efficiency and low-waste heating, Rinnai units significantly reduce monthly energy bills.

Compact & Space-Efficient Design:
Rinnai units mount on the wall, freeing up valuable floor space and simplifying installation.

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GBP Reviews for Hvac Services - Tamas Mechanical

Testimonials

What Our Customers Say
About Rinnai

Mike Rizvanovic
5 hours ago

Tamer was great, changed our entire HVAC unit, which now works perfectly fine. Very professional service and very knowledgeable, would highly recommend them for HVAC services.

Matt C
Edited a day ago

We had an air conditioner malfunction over a long weekend and Tamer was kind enough to come fix it the next day! It's been running great ever since!Update: Our furnace also ended up acting up, and we got the same great service fixing that.

Akbar Khan
3 days ago

Very knowledgeable technician, knows what need to resolved the issue, quick response and we'll in time as committed.

Darell Hornby
Edited a week ago

Excellent as always! On time. Extremely thorough. Double checked all areas of concern and made the appropriate repairs. You couldn't ask for a better HVAC provider.

suresh ak
a week ago

Had an issue with my old AC. Tamer visited, provided the right suggestions and installed in a day. Great professional service and strongly recommended.

Naeem Butt
a week ago

Tamas Mechanical,a good AC and heating mechanic he is doing very good job,i call emigeat response, make a appointment and done the jobs they work my two homes, I am settesfed his job.

Michael Ciupak
Edited 2 weeks ago

Tamer is the friendliest and easiest person to deal with. He rearranged his schedule to accommodate mine. I recommend Tamas mechanical and will continue using for all my needs

Sharief Shihab
2 weeks ago

Needed help getting our air conditioner working again, great service. Tamer knows his stuff, was thorough, clean and explained everything he was doing as he went along.

Zohair Ahmed
2 weeks ago

I've been having issues with poor airflow at a number of my vents in addition to some freezing in my furnace room in my home in Mississauga. I found Tamas Mechanical online. They have great reviews, and after speaking with Tamer and having him complete his diagnostic, I see why. Tamer was professional, patient, and fair throughout my engagement with him.Tamer quickly identified the issue and tweaked some settings to resolve it. I will be going back to Tamer for all my HVAC needs going forward!

Connor Derry
6 months ago

Overall I had an excellent experience with Tamer installing a smart thermostat in my home. He was very polite, organized, knowledgeable and very easy to work with throughout the process. I have already booked him in to service the furnace for next season. I would highly recommend hiring him for any work needed.

Jeff Gomes
6 months ago

The gentleman was very knowledgeable, experienced and extremely helpful. He was fast in repairing my gas leaking pipe. I plan to use him again in the future. His company deals with gas leaks, furnace maintenance, duct cleaning and air conditioning maintenance. I'm a very satisfied customer.

Bill
7 months ago

Tamer was excellent in diagnosing and fixing a complicated furnace issue we had. This was not my first time using Tamer and it won’t be my last. He is our go to guy for HVAC. Very professional, conscientious and good at what he does. Would highly recommend.

Thessa S
2 years ago

I hired Tamas Mechanical Inc., for furnace and duct cleaning. Tamer’s team, Mahdi and Blessing, did a great job. Mahdi was careful and efficient with his work. I also appreciated that they were respectful of us and cleaned up after the service. Tamer was very responsive when I was inquiring and booking. Had a smooth and easy experience with them. I highly recommend these guys and would hire them again in the future.

Dr H
5 months ago

Tamer did the job perfectly, he came ontime and his dedication to do task properly was obvious. Highly recommended

Terry Chemij
a year ago

Had a great experience with this company. I was having a BBQ at my new house in a couple of days and needed an HVAC company to install a new natural gas line for my BBQ. I put a request in Homwstars and got a call from Tamas very quickly and arranged for a technician to arrive the next day and provided a quote over the phone based on some photos and measurements. Tamer was the technician and took about half a day to install the new line which worked perfectly. One small issue was that my fireplace pilot went out during the installatio and I couldn't relight it. But Tamer came back to do a manual light at no extra charge. Very happy with the service, price and friendliness of staff.

nimish wadhwa
8 months ago

Tamer was a helpful guy. Helped fix my problem within a couple of hours. Would recommend him for any hvac issues.

Nicholas Robinson
7 months ago

I was struck by how honest he was. Didn’t charge me for a small task months ago and quickly resolved an issue today. Good workmanship and great value. I’m happy to rely on Tamas for my HVAC needs.

Raj Ghangam
Edited 7 months ago

Tamer is great and makes sure all your equipment is in running order. Way better deal than something like Reliance. Here is the Bryant AC unit that he installed for us.

Roel Yumul
8 months ago

Tamas Mechanical provided great service. Was able to get a quote over the phone with a few pictures and have them completed 2 days later. Amazing work!

We needed repair work done on our HVAC/furnace. He was quick to respond, and quick to get to the repair. The price was very reasonable for great and honest work. Tamer was exceptionally knowledgeable and will not give empty promises. He was detailed and transparent in showing and explaining what the problem is, what he would recommend, and also allowed me the option to choose which route I wanted to take to truly fix the problem. He does not give you the run-around and works as quickly as possible without compromising quality. We felt like we were truly taken cared of. On top of that, the repair was flawless! We highly recommend Tamas Mechanical, and will gladly use his service again (should we need future repairs/ installations).

Ahmad Harb
a year ago

Tamer was very responsive and took time to understand the air conditioning issues and set very realistic expectations based on facts. Scheduling a visit was quick and easy, he arrived on time and did what was needed quickly while also being patient and took time to answer all questions and explained the details in relation to possible replacement of our old A/C and Furnace without trying to oversell us on anything. We would definitely recommend Tamas to everyone if you want someone who is clearly hardworking, wants to earn an honest living and win customers over the right way! Thank you Tamer and really appreciate your time and effort, you will definitely be our go to person for any heating/cooling issues.

RKTM Matthews
a year ago

I received excellent advice from Tamer regarding what power/BTU furnace I should choose. Prior to calling Tamas Mechanical, I had called several other companies, where I was getting conflicting and not clear advice on what BTU size I should choose. However, Tamer was clear on what BTU size I should choose and fair in the pricing. I was able to get advice on a Monday morning and order the unit by Tuesday and fortunately they accommodated me and had it installed two days later! The furnace is currently working well and keeping us warm and I also have a new humidifier April air 500 series that was also recommended and seems to be making the air in our house better. I will now be getting my ducts cleaned by Thomas mechanical and look forward to this service from them. I highly recommend this company.

Sahar Ortiz
Edited 2 months ago

We had Tamas come out due to a leak. He was professionally, timely and super friendly again this time. We are very satisfied with the work he did.Tamas is a great guy. Very friendly and informative. He installed a tankless water heater for us which has been working great. Also gave us a great price compared to what we were being quoted by others. Will definetly use his services in the future.

Lindsay Palmer
2 years ago

Tamer was quick to come diagnose our furnace and very knowledgeable on what the problem was. He took the time to answer our questions and listened to our concerns. He stayed in contact and updated us about when the part was going to be available and it was a quick turn around. He was very accessible and efficient. We would definitely recommend and use tamer again!

Alix Taylor
a year ago

Tamas Mechanical were a pleasure to deal with. They replied promptly to my request, showed up within 12 hours and diagnosed the problem. Although the repair was beyond their scope, they were honest and upfront and recommended another company. I would use in the future if the need arises and recommend to others.

Asim Hussain
a year ago

Tamer Sayer was the technician who came to service my furnace. I should preface my furnace is 14 years old and two other companies failed to fix the issue. Tamer spent over two hours diagnosing the issue and fixing it. Three weeks later furnace is still running like new. Al very grateful 🙏

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BENEFITS OF RINNAI

Why Choose Rinnai for Your Home?

Uninterrupted Hot Water:
Perfect for households with multiple showers, appliances, and high water-use needs.

Lower Utility Costs:
High-efficiency technology delivers strong performance with reduced energy consumption.

Reliable and Durable:
Built with quality materials and precision engineering for long-lasting operation.

Environmentally Friendly:
Efficient performance and low emissions support smarter, greener home comfort.

Frequently Asked Questions

Frequently Asked Questions

Do Rinnai tankless systems provide endless hot water?

Yes. Rinnai systems are designed to supply continuous hot water on demand without ever running out.

Absolutely. Rinnai units use high-efficiency heating technology to significantly reduce energy consumption and utility costs.

With proper maintenance, Rinnai tankless units often last 15–20 years or longer.

Yes. Their compact, wall-mounted design frees up floor space and offers flexible installation locations.

Yes. Rinnai models are available with flow rates capable of supporting multiple faucets, appliances, and showers simultaneously.

Yes. Rinnai products use less fuel and produce lower emissions, supporting more sustainable home heating.

Special for jobs Requested by
SAT 07/04/2026
10% OFF REPAIRS
Over $200
Use Promocode [ SATURDAY ]
at the time of booking.