Tankless Water Heater Repair, Installation & Maintenance

Looking to install a brand-new tankless system, need fast repairs on an existing unit, or want routine maintenance? Our licensed technicians are here to help.

We’ve Got Your Back!

Tired of Running Out of Hot Water?

If you’re tired of running out of hot water or dealing with an aging water heater, a tankless water heater could be the perfect upgrade for your home. At North Wind HVAC, we provide professional tankless water heater installation, repair, and maintenance services across Toronto, Barrie, and the Greater Toronto Area.

Whether you’re looking to install a brand-new tankless system, need fast repairs on an existing unit, or want routine maintenance to keep your system running efficiently, our licensed technicians are here to help. We offer same-day repair services, 7 days a week, and provide FREE in-home consultations for homeowners considering a new tankless water heater.

GTA (647) 558-5528

Barrie (705) 828-4482

Expert Technicians

With Years of Experience

Fast and Reliable

Available 7 Days a Week

Affordable Services

Quality Service, Unbeatable Price

Certified and Qualified

Fully Licensed, TSSA Approved

      EXCELLENT  
   Based on 130 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Jasmit Bhandal 
 
 
 
 Trustindex verifies that the original source of the review is Google. These guys made it right.  We had issues but they went out of their way to resolve and follow up.
  
 
      Posted on Google  
   
   Antti Patjas 
 
 
 
 Trustindex verifies that the original source of the review is Google. North Wind showed up on time , provided a solution and quote and did the new furnace install in a timely manner. Great price and service. Thanks
  
 
      Posted on Google  
   
   Tania Boyes 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have used North Wind HVAC for a vent repair and a full install of a new furnace. The technician was extremely thorough, knowledgeable and provided cost effective options. Moreover, they responded quickly and visited our house in short notice despite a huge snow storm.

In today’s world where it can be difficult to find a reputable and trusted technician/ contractor, I was very impressed by their overall customer service and expertise. I have already recommended them to friends/ family and would highly recommend to anyone in need of HVAC repair.
  
 
      Posted on Google  
   
   Leah Loo 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alex arrived ahead of scheduled time and saved the day! He was very knowledgeable and professional, and we have heat again.  Thank you!
  
 
      Posted on Google  
   
   Ирина Минюк 
 
 
 
 Trustindex verifies that the original source of the review is Google. Top-notch furnace repair! Professional, punctual, and efficient. Everything was clearly explained and the repair was completed quickly. Great customer service and quality work.
  
 
      Posted on Google  
   
   Ufuoma Ohwoghere 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service. We had problems with our thermostat and they were able to help nice and affectively. They came on time and got the job done fast. They communicate well. 10/10 I would recommend to others.
  
 
      Posted on Google  
   
   DIVINE BEING 
 
 
 
 Trustindex verifies that the original source of the review is Google. Had an issue with our furnace not heating properly and called North Wind Heating & Air Conditioning. The technician arrived on time, quickly diagnosed the problem and had it fixed
  
 
      Posted on Google  
   
   Stacey Elvidge 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alex was great. My furnace stopped working on a Sunday in the middle of a cold snap.  Alex came out within 2 hours, diagnosed the problem, and had the furnace company send the part as it was under warranty.  Him and his technician were prompt, knowledgeable and got the job done. I would highly recommend using North Wind HVAC.
  
 
      Posted on Google  
   
   Justin Arruda 
 
 
 
 Trustindex verifies that the original source of the review is Google. My go to for all personal HVAC needs! Everything you want from a business. Responsive, honest, and timely!
  
 
      Posted on Google  
   
   Ethan Pirnia 
 
 
 
 Trustindex verifies that the original source of the review is Google. Alex and his team were great. And the brand new furnace installed at vacation home was a solid 20% less than three other quotes.

Why Tankless Just Makes Sense

Why Homeowners Are Switching to Tankless Water Heaters

Tankless water heaters have become increasingly popular because they offer several advantages over traditional hot water tanks. Some of the key benefits include:

1. Endless hot water

Tankless systems heat water as it flows through the unit, so you won’t run out of hot water during back-to-back showers or heavy household use.

2. Better energy efficiency

Since tankless systems only heat water when needed, they eliminate the standby energy loss that occurs with traditional tanks.

3. Space-saving design

Tankless water heaters are compact and wall-mounted, freeing up valuable space in your utility room or basement.

4. Longer lifespan

A tankless water heater can last significantly longer than a traditional tank with proper maintenance.

5. Reliable performance for busy homes

Families with higher hot water demands often find tankless systems more convenient and dependable.

Upgrade Your Hot Water System

Professional Tankless Water Heater Installation

Installing a tankless water heater requires careful planning and professional installation to ensure the system works safely and efficiently. Our experienced technicians handle every part of the process so homeowners don’t have to worry about the technical details.

Our installation services include:

Evaluating your home’s hot water needs
Recommending the right tankless system for your household
Installing gas or electric tankless units
Upgrading gas lines if needed
Installing proper venting and exhaust systems
Connecting water lines and electrical components
Testing the system to ensure safe operation

We install all major tankless water heater brands, including Navien, Rinnai, Noritz, Bosch, and AO Smith.

Our team is TSSA certified for gas appliances, ensuring every installation meets the required safety standards.

Here’s How It All Comes Together

How We Install Tankless Water Heaters

01 Home hot water assessment

Evaluate your household’s hot water usage and determine the best system size

02 System recommendation

Technician recommends a tankless system that matches your home’s needs.

03 Gas, venting, & electrical evaluation

Confirm that your home’s existing infrastructure can support the installation.

04 Installation & Testing

Certified technicians install the system, we test the unit and explain how to operate and maintain.

No Hot Water? We’re On It.

Same-Day Tankless Water Heater Repairs – 7 Days a Week

If your tankless water heater stops working, it can quickly disrupt your daily routine. Our technicians provide same-day repair services across Toronto, Barrie, and the GTA, helping restore hot water as quickly as possible.

We repair all major tankless brands and models, and our technicians carry the tools and parts needed to diagnose and fix most problems on the first visit.

Common Tankless Water Heater Problems

Some of the most common problems homeowners experience include:

No hot water coming from the system
Error codes appearing on the display
Water temperature fluctuating
Low hot water pressure
The unit shutting off unexpectedly
Ignition or burner failures
Mineral buildup affecting system performance

A Little Maintenance Goes a Long Way

Tankless Water Heater Maintenance & Annual Flushing

Routine maintenance is essential for keeping a tankless water heater operating efficiently.

Over time, minerals in the water supply can build up inside the heat exchanger. This buildup can reduce efficiency, restrict water flow, and eventually lead to system damage if not addressed.

We provide professional tankless water heater flushing and descaling services, which help:

Remove mineral buildup
Improve system efficiency
Extend the lifespan of your heater
Prevent costly repairs

Most manufacturers recommend annual flushing and maintenance to keep the system performing properly.

Save More with Our

Deals & Coupons

*ONLY 1 coupon is redeemable per purchase.*

50% OFF

Ac Cover

Get 50% off your ac cover with the purchase of a tankless water heater.

FROM $499

HUMIDIFIER INSTALLATION

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furnace inspection

FREE furnace inspection with the purchase of a tankless water heater installation.

Why Homeowners Call North Wind

Why Choose North Wind HVAC?

Homeowners trust North Wind HVAC because we focus on reliable service, honest advice, and professional workmanship.

When you book with us, you benefit from:

Licensed and experienced HVAC technicians
TSSA certified professionals for gas appliances
Same-day repair services available
Service available 7 days a week
Installation of all major tankless brands
FREE in-home consultations for new systems
Honest recommendations and transparent pricing

We take pride in helping homeowners across the GTA find the right solutions for their hot water needs.

professional water heater repair installation contractors

Tankless Water Heater Installation FAQs

What causes a tankless water heater to go cold suddenly?

The Cause: Sudden cold water from a tankless system can be caused by flow rate changes, demand exceeding capacity, scale buildup, ignition failure, sensor errors, gas supply issues, or the common cold water sandwich effect.

How a professional handles it: A technician checks water flow rate, gas pressure, burner operation, error history, inlet filters, heat exchanger condition, and system sizing. If scale is restricting heat transfer, the unit is descaled using proper service equipment and then tested under real household demand.

What causes a tankless water heater to show an error code?

The Cause: Tankless error codes can be triggered by scale buildup, blocked venting, ignition failure, flame sensing problems, water flow issues, gas pressure problems, fan issues, or sensor faults.

How a professional handles it: A technician reads the error code, checks the manufacturer diagnostic chart, reviews combustion, venting, gas pressure, water flow, filters, sensors, and heat exchanger condition. The repair is completed according to the specific error rather than guessing from symptoms alone.

How long can I expect my tankless water heater to last?

Tankless water heaters have a life expectancy of more than 20 years. Regular maintenance can extend their life by many more years.

Why is my tankless water heater making a ticking noise?

The Cause: Light ticking during operation can be normal expansion or flow sensor activity. Loud ticking, grinding, or clicking while idle may indicate fan motor wear, combustion issues, or loose internal parts.

How a professional handles it: A technician determines whether the sound happens during normal firing, water flow, shutdown, or idle periods. The heat exchanger, fan, flow sensor, burner assembly, and mounting points are inspected. Mechanical failures are repaired before they affect combustion or water heating performance.

What are the benefits of a tankless water heater system?

Tankless systems offer several benefits, including energy efficiency, cost savings, longer lifespan than traditional tank systems, and space-saving design.

How do tankless water heaters work?

A tankless system heats water directly as it flows through the unit, without storing it in a tank. It uses either gas or electricity to heat water on demand, providing hot water instantly and continuously.

How do I clear blockages or flush out my hot water system?

The Cause: Sediment buildup inside a hot water tank can reduce efficiency, increase noise, damage components, and shorten equipment life. Tankless systems can also develop scale inside the heat exchanger.

How a professional handles it: A plumber performs a controlled flush or descaling service based on the type of water heater. For tank systems, sediment is flushed through the drain system while protecting the heating components. For tankless systems, isolation valves and a pump are used to circulate descaling solution through the heat exchanger.