Tankless Water Heater Installation

Tankless Water Heater Installation in Uxbridge

Local HVAC Installation Built Around Your Whole Home

When you’re ready to upgrade to a tankless water heater, who does the work matters. Marx Mechanical Heating and Cooling is based in Uxbridge and has served homeowners across Durham Region and York Region since 2017. Our licensed team brings over 20 years of collective HVAC experience to every installation, and we offer free estimates with no pressure to commit.

We hold a 4.9 rating on Google, and our 24/7 answering service means you can reach us whenever a question or urgent situation comes up.

Call Marx Mechanical Heating and Cooling at (289) 301-0414 to book your free estimate for tankless water heater installation in Uxbridge. Same-day appointments are available.

Why Uxbridge Homeowners Choose Marx Mechanical Heating and Cooling

Our approach is guided by the Marx Promise: balancing cost, efficiency, and reliability on every job. For tankless installation, that means we don’t treat the water heater as an isolated plumbing swap. As a full HVAC company, we size and configure each unit as part of your home’s overall comfort system, accounting for gas line capacity, venting requirements, and hot water demand together.

Our licensed technicians have serviced over 7,000 units. As a Daikin Comfort Pro Partner, we have access to high-performance, energy-efficient equipment and provide transparent, upfront pricing with no hidden fees. After installation, Marx Comfort Club membership helps keep your system running at peak performance through priority service, discounted repairs, and scheduled maintenance.

How Tankless Water Heaters Work

Conventional tank water heaters keep a stored volume of water hot around the clock, drawing energy continuously even when no one is using hot water. This constant energy draw is called standby heat loss. Tankless units eliminate it by heating water only when a tap opens and stopping the moment it closes.

The key performance variable in a tankless system is flow rate, measured in litres per minute. Each unit has a rated capacity, and running multiple fixtures at the same time pulls against that ceiling. An undersized unit can struggle to maintain pressure and temperature when the dishwasher, shower, and laundry are all running simultaneously. This is exactly why proper sizing before installation matters.

Gas-fired tankless units also require a correctly sized gas line to deliver the higher BTU input these systems demand, and properly routed venting to safely exhaust combustion gases. These aren’t details a generalist installer always accounts for, but they’re central to how we approach every job.

What Our Tankless Installation Process Covers

Before recommending any unit, we conduct a thorough home assessment: your existing gas line capacity, current venting configuration, number of occupants, and anticipated simultaneous fixture use. If you’re planning to add a bathroom or finish a basement, we factor that in too.

Every installation is carried out by our licensed HVAC technicians, and we secure all required permits as part of the process. On installation day, we confirm pressure relief, drain connections, and temperature settings against both manufacturer specifications and Ontario code requirements. Before we leave, we test for leaks, verify temperature output, and walk you through the shutoff valves and basic controls so you know exactly how your new system operates.

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Getting Started in Simple

Contact Marx Mechanical Heating and Cooling Today!

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Areas We serve

Providing service to Uxbridge, Ontario and other surrounding areas.

Ajax
Aurora
East Gwillimbury
Georgina
Kawartha Lakes
Newmarket
Oshawa
Pickering
Port Perry
Whitby
Whitchurch-Stouffville

Is a Tankless Water Heater Right for Your Uxbridge Home?

Tankless units are a strong fit for many Uxbridge households, but not every home is equally ready for one. As part of every consultation, we assess your current plumbing and gas infrastructure before making a recommendation. If your home needs a gas line upgrade or a new venting run, we’ll tell you upfront so there are no surprises once work begins.

Older homes in the area sometimes require infrastructure work that changes the cost picture. Households with very high simultaneous hot water demand may need a high-capacity unit or a multi-unit setup. Tankless systems carry a higher upfront cost than conventional tank models, though they may offset this through lower operating costs and a longer service life. Uxbridge homeowners may also be eligible for provincial energy efficiency rebates when upgrading to a qualifying high-efficiency system.

If a tankless unit isn’t the right call for your situation, we’ll say so and recommend an alternative that better fits your home. That honesty is part of the Marx Promise.

Financing Through Financeit

The upfront cost of tankless installation doesn’t have to be a barrier. Marx Mechanical Heating and Cooling has partnered with Financeit to offer fast, straightforward financing so you can move forward without paying everything out of pocket. Contact us to request a free estimate and ask about available options.

Benefits of Switching to a Tankless System

The most immediate change most homeowners notice is continuous hot water. As long as demand stays within the unit’s rated flow rate, the hot water doesn’t run out. There’s no more timing showers around a tank’s recovery period.

Beyond that, the practical advantages add up:

Space savings: Wall-mounted units free up floor space in mechanical rooms, basements, and utility closets that a tank would otherwise occupy
Energy efficiency: Heating water only on demand reduces the energy wasted by tanks cycling on and off throughout the day
Longer service life: Without stored water, corrosion and mineral buildup progress more slowly, which can contribute to a longer service life with regular maintenance
Lower standby energy draw: Reduced energy consumption can also mean a smaller carbon footprint, which matters to homeowners pursuing efficiency goals

Protecting Your Investment with Ongoing Maintenance

Tankless units perform best when serviced regularly. Annual maintenance typically includes flushing the heat exchanger to clear mineral scale, inspecting the burner and ignition components, and confirming the venting remains clear and correctly routed. In areas with harder water, descaling may need to happen more frequently to maintain rated flow and efficiency.

Marx Comfort Club membership makes staying on schedule straightforward. Members receive priority service, discounted repairs, and pre-scheduled maintenance visits, applicable to tank and tankless systems alongside the rest of your HVAC equipment. We also handle manufacturer registration at installation close-out so your warranty coverage is in place from day one.

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Make Marx Your First Choice Read Some of Our Five Star Reviews

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"Super work!"
Marx Mechanical Heating and Cooling did a wonderful job in repairing our ductless heat pump system. I highly recommend the company.

Leland D.
"So pleased to have chosen Marx Mechanical!"
From the initial phone call, to the visit to the showroom, to the install, to the subsequent follow up of such, all the staff (including owner) could not have been more accommodating and more knowledgeable.

Karen H.
"The team at Marx Mechanical did an amazing job with my install."
They answered all of my questions, gave honest advice, and put in the extra effort to fit my new Daikin air handler into the very limited space that was available.

Dennis P.
"Bravo!"
The Marx Team came to our rescue when our furnace was on the fritz and installed a new one with exceptional installation standards and had us up and running in no time! They are without a doubt the "Go To" HVAC company in the Durham-York Region!

Brian B.
"My experience was outstanding!"
Each member of the team went out of their way to ensure I was well taken care of. In a world where everyone wants to cut costs by outsourcing and automating, Marx demonstrates the value of personal touch and putting the needs of their clients first.

Blake M.
"Their staff and technicians were exemplary."
Marx Mechanical responded quickly when our furnace broke down on a cold day in December. They quoted a good price and installed the new equipment promptly. We were impressed with their professionalism and their promptness in dealing with the issue.

Robert A.
"Exceptional service!"
Their team displayed extensive knowledge, answering all my questions thoroughly. The installation process was smooth and efficient, with a focus on precision and quality. The customer service was outstanding! They exceeded my expectations.

Adam H.
"Great team, great products, great experience."
The systems are exceptional. I wouldn't change a thing about the experience and I would highly recommend Jason and his team at Marx Mechanical for any such work. Solid pros, excellent experience from start to finish!

Daniel B.

Get a Free Estimate for Tankless Water Heater Installation in Uxbridge

Our team is ready to assess your home and can walk you through your options at no charge. Same-day appointments are available, and our 24/7 answering service means you don’t have to wait until Monday to get a question answered.

As your local tankless water heater installer in Uxbridge, Marx Mechanical Heating and Cooling handles everything from the initial assessment through permits, installation, and post-install verification. The Marx Promise applies from the first call to the final walkthrough.

Call Marx Mechanical Heating and Cooling at (289) 301-0414 or use our online contact form to book your free estimate today.

What Makes Us Different? Benefits of Working with Our Expert Team

Local Values - Exceptional Service
Being family-owned and operated means more than just business to us—it’s about building lasting relationships. We’re proud to serve our community with care, integrity, and quality you can trust.
Year-Round Comfort With Our Memberships
Our membership plans are designed to keep your systems running smoothly all year long. Enjoy exclusive perks like priority service, discounted repairs, and regular maintenance.
Team of Highly Experienced HVAC Technicians

With decades of industry experience, Marx Mechanical Heating and Cooling delivers expert HVAC solutions with precision, reliability, and quality service.
Transparent, Upfront Pricing

We are committed to honesty and transparency in all our services. We offer upfront pricing with no hidden fees - just clear, fair quotes from an HVAC company you can rely on.

Join the Marx Comfort Club
Year-round comfort is only a click away! Our membership plans offer priority service, discounted repairs, and more!

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