Etobicoke, Mississauga & the GTA

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Navien tankless water heater installation GTA

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Navien Authorized Contractor · GTA

Navien Water Heater Contractor in the GTA

Certified Navien tankless water heater and combi-boiler contractor serving Etobicoke, Mississauga, and the GTA. TSSA licensed technicians, upfront pricing, and up to 15-year warranty on every installation.

(437) 837-0777

Free Estimates

TSSA Licensed

Up to 15-Year Warranty

Navien Authorized

5.0 Rated

Verified

TSSA Licensed

STO Certified

About Navien

Why Navien Is the Condensing Leader

Navien has been manufacturing HVAC and water heating products since 1978 and is the number-one selling brand of high-efficiency condensing gas tankless water heaters in North America. Their flagship NPE-A2 series achieves up to 0.96 UEF and includes a patented built-in buffer tank and recirculating pump: features that address the two most common complaints about tankless water heaters and deliver a hot water experience that rivals or exceeds a traditional tank unit. Navien backs their heat exchangers with a 15-year warranty, one of the longest in the industry.

What distinguishes Navien from other tankless brands is their focus on solving real-world usability problems rather than just maximizing efficiency ratings. The built-in buffer tank in the NPE-A2 series eliminates the cold-water sandwich effect. The built-in recirculation pump means near-instant hot water delivery throughout the home without a separate pump installation. NaviLink Wi-Fi control allows homeowners to monitor and adjust their water heater remotely. These are practical features that make a meaningful difference in day-to-day use.

For GTA homeowners with hydronic heating systems, Navien's NCB-E combi-boiler series offers a compelling alternative to separate furnace and water heater installations. A single wall-mounted unit provides both space heating and unlimited domestic hot water, simplifying the mechanical room and reducing the number of appliances requiring maintenance. We assess your home's heating and hot water requirements and recommend the most practical Navien solution for your specific situation.

Authorized Navien Contractor

Serving Etobicoke, Mississauga & the GTA

Navien NPE-240A2 condensing tankless water heater

Up to 0.96 UEF

Highest Navien efficiency rating

15-Year Warranty

Heat exchanger with registration

No Cold Sandwich

Built-in buffer tank technology

Combi-Boiler Option

Heat + hot water in one unit

Product Lines

The Navien Product Series

Navien offers condensing tankless water heaters and combi-boilers across multiple series. Each targets a different balance of features, capacity, and application. We help you choose the right one for your home.

Navien NPE-A2 Series

Premium

Up to 0.96 UEF

Up to 11.1 GPM

15 years heat exchanger, 5 years parts

Built-in buffer tank

Built-in recirculation pump

NaviLink Wi-Fi control

ENERGY STAR certified

Navien NPE-S2 Series

Mid-Range

Up to 0.96 UEF

Up to 11.1 GPM

15 years heat exchanger, 5 years parts

Condensing technology

PVC venting

ComfortFlow recirculation

Strong value for most homes

Navien NCB-E Combi-Boiler

Combi System

Up to 0.95 UEF

Up to 6.8 GPM domestic

15 years heat exchanger, 5 years parts

Space heating + hot water

Hydronic system compatible

Wall-mounted compact design

Ideal for radiant floor heating

Our Services

Navien Tankless & Combi-Boiler Installation & Service

From new Navien tankless installations to combi-boiler setups and annual maintenance, Beyond HVAC covers the full lifecycle of your Navien equipment.

Navien Tankless Water Heater Installation

We install the full Navien tankless water heater lineup across Etobicoke, Mississauga, and the broader GTA. Navien is the number-one selling brand of high-efficiency condensing gas tankless water heaters in North America, and for good reason: their NPE-A2 series includes a patented built-in buffer tank and recirculating pump that virtually eliminates the cold-water sandwich effect common with other tankless units. Every Navien installation includes gas line connection, PVC venting, and a full commissioning test to verify the system is operating at rated efficiency. Learn more about our tankless water heater installation services or read our guide on tank vs. tankless water heaters to understand which system is right for your home.

Navien Combi-Boiler Installation

Navien's NCB-E series combi-boilers are a compelling option for GTA homeowners with hydronic heating systems who want to consolidate their space heating and domestic hot water into a single high-efficiency unit. The NCB-E delivers both radiant floor heating or baseboard heat and unlimited domestic hot water from one wall-mounted appliance, eliminating the need for a separate furnace and water heater. This is particularly valuable in homes with limited mechanical room space or in new construction where a combined system simplifies the installation significantly. We size and install Navien combi-boilers to Ontario code and handle all gas, venting, and hydronic connections. Learn more about our hot water system services.

Navien Water Heater Repair & Maintenance

Navien tankless water heaters are built for long-term reliability, but like all gas appliances they benefit from annual maintenance. Our technicians are experienced with the full Navien product range and can diagnose and repair common issues including error codes, ignition failures, scale buildup in the heat exchanger, and flow sensor problems. Annual maintenance on a Navien unit typically includes a descaling flush, filter cleaning, burner inspection, and a full operational check: essential in the GTA where hard water accelerates mineral buildup. For urgent repairs, we offer same-day service across the GTA. Learn more about our water heater repair services.

Customer Reviews

What Our Navien Customers Are Saying

Matthew Girgis

1 month ago

Had a sudden leak in our furnace and received a quick response from Yuri. He sent one of his technicians, Michael, who came within a couple hours and was able to fix the issue at a reasonable price. Great experience with this company. Honest work and fair rates. Would use again.

Keenan Dion

1 month ago

I had a great experience with Beyond HVAC. They are very easy to deal with. I live in the Mimico/Park Lawn area and they were onsite within the hour. Michael resolved my heating issue for a great price, not having to replace the major components.

Nicole C

1 month ago

We are super happy to have found Beyond HVAC. We live in the South Riverdale / Leslieville area and were really impressed with the quality of his work. Yuriy is quick to respond, very professional and very knowledgeable. We had the tankless Navien NPE-240A2 installed. The installation was done neatly, all the venting and piping were organized well. During the installation, he also pointed out several issues with our previous setup that weren’t done correctly. He took the time to explain them and fixed everything properly, which gave us a lot of confidence that the system was installed the right way. I highly recommend him!!

Bradley

2 months ago

Fantastic customer service. Fast friendly and efficient. Most importantly they are honest and very helpful.

Mark Leung

2 months ago

Yuriy and Michael were consummate professionals - they laid out our options, provided clear communication and timely follow-ups. Could not be happier with their high service levels. Will likely be our go to for the foreseeable future. FYI: They replaced an aging water tank and serviced our furnace.

A H

3 months ago

I came across Beyond HVAC while looking for a company that can perform routine tankless water heater maintenance and service in Etobicoke. I have used the installer before but he doesn't respond. I called in the morning and got a call back soon thereafter from Yuriy and set up an appointment for the next morning. I was thankful for the quick response time as well as the ability to set up an appointment relatively quickly. Michael came the next morning and was professional and courteous. He spent time to explain what he would do and after the service, he spent time to explain how it went and what I had to do (i.e. flush the pipes by turning on hot water at each faucet for 2-3 minutes). I would definitely use Beyond HVAC not only for tankless water heater maintenance but for other HVAC needs given my experience with them.

Paul D.

4 months ago

Beyond HVAC provided excellent service. We needed someone who provided service in the Etobicoke area to diagnose and repair our gas range. Yuriy responded to our requirements in a professional, prompt and customer focused manner. He sourced the part for us and went out of way to get it installed on Christmas Eve so that we could enjoy a Christmas dinner, for which we were very appreciative. He kept us fully apprised of the situation, following up at each stage of the service. His service was professional, complete and provided with excellent customer focus. We are completely satisfied. We will use him again for further service requirements.

Sam S

4 months ago

Yuriy and Michael are very professional and knowledgeable. Michael was able to quickly diagnose and repair my malfunctioning furnace humidifier, and was happy to explain things as he worked. He went the extra mile to vacuum out some old renovation debris from the duct he was working on and cleaned up the work area when he was done. I'm glad to have a local HVAC professional I can trust!

Why Choose Us

Your Trusted Navien Water Heater Contractor in the GTA

Transparent Pricing

We assess your home, size the Navien unit correctly, and give you a firm quote before any work begins. No surprises on installation day.

Proper Sizing & Installation

An incorrectly sized tankless unit will struggle to meet peak demand. We calculate your home's hot water load and recommend the right Navien model for your household.

Labour & Equipment Warranty

All Navien installations are backed by our labour warranty plus Navien's manufacturer warranty: up to 15 years on the heat exchanger with registration.

Licensed & Certified

TSSA licensed and STO certified technicians on every job. Gas connections, venting, and electrical all performed to Ontario code.

Financing

Flexible Financing Available

A new Navien tankless water heater installation typically ranges from $2,800 to $5,500 installed depending on the model and venting requirements. Combi-boiler installations are typically higher due to the additional hydronic connections required. We give you a firm, itemized quote after assessing your home.

We offer flexible financing through Financeit, including 0% interest for 12 months with approved credit. For homeowners upgrading from a rental tank unit, the monthly financing payment on a Navien installation is often comparable to or less than the monthly rental fee: and at the end of the term, you own the equipment outright.

0% interest financing available

Deferred payment options (3 and 6 months)

Monthly payment plans for any budget

Quick approvals, apply in minutes

Apply for Financing

0% interest financing: Navien water heater

6-month deferral financing: Navien water heater

Homeowner Resources

Guides for Navien Homeowners

Tank vs. Tankless Water Heaters: What Ontario Homeowners Need to Know

Water Heater Guide

6 min read

Tank vs. Tankless Water Heaters: What Ontario Homeowners Need to Know

Upgrading your water heater? We compare tank and tankless systems on cost, efficiency, and long-term value: with honest advice on which makes sense for most GTA homes.

Upfront vs. operating cost comparison

Which system suits your household size

Rebates and incentives available in Ontario

Read the Full Guide

Homeowner Guide

8 min read

Renting vs. Owning a Furnace in Ontario

The same rent-vs-own logic applies to water heaters. We break down the real costs and long-term implications so you can make the right call for your home.

True cost of renting vs. buying over 10 years

When renting makes financial sense

What happens to your warranty when you rent

Read the Full Guide

Frequently Asked Questions

Navien Water Heater Questions Answered

Is Navien a good brand for tankless water heaters?

Yes. Navien is the number-one selling brand of high-efficiency condensing gas tankless water heaters in North America and has a strong reputation for innovation and reliability. Their NPE-A2 series is particularly well-regarded for its built-in buffer tank and recirculation pump, which address two of the most common complaints about tankless units: the cold-water sandwich effect and the delay in getting hot water to fixtures. Navien units are backed by one of the strongest warranties in the industry: up to 15 years on the heat exchanger.

What is the cold-water sandwich effect and how does Navien address it?

The cold-water sandwich effect occurs when a tankless water heater delivers a brief burst of cold water between two draws of hot water: for example, when someone turns the tap off and back on quickly. This happens because the unit shuts off between draws and the residual cold water in the pipes gets delivered before the heater fires back up. Navien's NPE-A2 series addresses this with a patented built-in buffer tank that maintains a small reserve of hot water, virtually eliminating the cold-water sandwich in normal household use.

What is a combi-boiler and is it right for my home?

A combi-boiler is a single unit that provides both space heating (through a hydronic system like radiant floor heating or baseboard radiators) and domestic hot water. Navien's NCB-E series is a popular choice for GTA homes with hydronic heating systems because it eliminates the need for a separate furnace and water heater, saving mechanical room space and simplifying maintenance. It is most practical in homes that already have a hydronic heating system or in new construction where the system is being designed from scratch. For homes with forced-air heating, a standard tankless water heater paired with a furnace is typically the more practical choice.

How much does a Navien tankless water heater installation cost in the GTA?

A Navien tankless water heater installation in the GTA typically ranges from $2,800 to $5,500 installed, depending on the model and venting requirements. Combi-boiler installations are typically higher due to the additional hydronic connections required. We provide a firm, itemized quote after assessing your home. Financing is available through Financeit, including 0% interest options for qualified applicants.

Do you service existing Navien equipment?

Yes. We repair and maintain all Navien models, including older units. Common Navien repairs include error code diagnostics, ignition failures, flow sensor issues, and scale buildup in the heat exchanger. Annual maintenance is recommended to keep the warranty valid and prevent premature failure from mineral buildup. We offer same-day service for urgent repairs across the GTA.

Get Started Today

Ready for a New Navien System? We're Ready to Help.

Book a free home assessment and get a firm quote on a Navien tankless water heater or combi-boiler installation. No pressure, no vague estimates: just honest advice and upfront pricing.

(437) 837-0777