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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.

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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.

Why Tankless Just Makes Sense

Why Homeowners Are Switching to Tankless Water Heaters

nti tankless water heater

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.

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Here’s How It All Comes Together

How We Install Tankless Water Heaters

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01 Home hot water assessment

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

tankless hot water estimate

02 System recommendation

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

tankless hot water service

03 Gas, venting, & electrical evaluation

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

tankless hot water warranty

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
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maintenance for tankless water heaters

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.

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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.

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Tankless Water Heater Installation FAQs

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.

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.

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

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.

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

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.

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.

High quality tankless water heater installation

Quality Brands We Trust

Brands We Service

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