Boiler Repair in Uxbridge, Ontario
Your Local Navien & Hydronic Heating Specialists
When your boiler stops working, it’s more than an inconvenience. It’s stressful, uncomfortable, and can even be unsafe. At Marx Mechanical Heating & Cooling, we understand how important reliable heat is to your home and family. That’s why we offer fast, expert boiler repair and installation services in Uxbridge, backed by honest pricing, skilled workmanship, and true care for our customers.
Call (289) 301-0414 or Book Online for service. 24/7 emergency service is available! No one should be left in the cold.
Expert Boiler Repair in Uxbridge
If your boiler isn’t heating evenly, making strange noises, or showing an error code, you don’t just need a repair, you need a hydronic heating expert who can find and fix the real cause of the issue.
Our team services and repairs all makes and models, specializing in Navien boilers and combi systems, as well as Viessmann, IBC, NTI, Lochinvar, Triangle Tube, Rinnai, Baxi, and Buderus.
We Repair:
- Navien boiler and combi system issues
- Condensing and conventional gas or propane boilers
- Leaks, low pressure, or air trapped in heating loops
- Faulty pumps, zone valves, sensors, and controls
- Ignition, flame sensing, and gas valve problems
- Radiant floor heating and manifold system repairs
- Expansion tanks, mixing valves, and relief valves
- System flushing, descaling, and performance optimization
At Marx Mechanical, we diagnose and fix the root cause to make sure your boiler runs safely, efficiently, and quietly for years to come.
Signs Your Boiler May Need Repair
If you notice any of the following, it’s time to call a professional:
- Uneven or insufficient heat throughout your home
- Strange noises like banging, gurgling, or whistling
- Error codes or system lockouts
- Water leaks near the unit or pipes
- Rising energy bills without increased usage
- Low system pressure or frequent resets
- Hot water supply that runs cold
Catching issues early can prevent costly breakdowns and keep your home warm when it matters most.
Why Homeowners in Uxbridge Trust Marx Mechanical
- Local Navien-certified service specialists
- Licensed hydronic heating professionals
- Clear communication and flat-rate pricing
- Respectful, tidy, and courteous technicians
- Proudly Canadian-owned & operated
Many companies say they “fix boilers.” We design, service, and optimize entire heating systems for long-term comfort. That’s the Marx Mechanical difference.
Don’t wait for your home to go cold. Get fast, reliable boiler repair in Uxbridge today with Marx Mechanical. Contact us today!
Transparent Boiler Repair Costs
We believe in upfront, flat-rate pricing. No surprises, no hidden fees.
- Diagnostic visit: $149 + HST (regular hours)
- Emergency service: $195 + HST (after hours)
- Boiler tune-up & safety check: $229 + HST
After diagnostics, we’ll provide a clear quote before any additional work begins. You’ll always know what to expect. That’s part of our commitment to honest service.
Keep Your Boiler Running Smoothly with the Marx Comfort Club
Regular maintenance keeps your hydronic system efficient and reliable. With the Boiler Comfort Club, you’ll enjoy peace of mind all year long for just $14.99/month.
Membership Benefits:
- Annual boiler maintenance & inspection
- Priority scheduling with no overtime fees
- System cleaning, vent & strainer maintenance
- 10% off all repairs and air quality products
- Exclusive seasonal checkups & member discounts
Hydronic systems are complex. Let us keep yours running at peak performance.
Warranties & Financing Options
- 1-year warranty on all repaired or replaced parts
- 2-year workmanship guarantee on installations
- Manufacturer limited warranties included
- Financing available through Financeit
We make it easy to invest in your home’s comfort without the financial stress.
Boiler Repair FAQ
- Do you repair Navien boilers?
Yes — we specialize in Navien repairs and diagnostics for combi and hydronic systems. - Do you install Navien boilers?
Absolutely. We’re trained and certified to install, vent, and commission Navien units. - Do installations include commissioning?
Yes — every installation includes startup, performance testing, and documentation. - Do you service other brands?
Yes — including Viessmann, IBC, NTI, Lochinvar, Triangle Tube, Rinnai, Baxi, and Buderus. - Do you serve areas outside Uxbridge?
Yes — we proudly serve Uxbridge, Port Perry, Stouffville, Newmarket, Aurora, Markham, Whitby, Brooklin, Oshawa, Pickering, and across Durham & York Regions.
Make Marx Your First Choice Read Some of Our Five Star Reviews
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"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. -
"I would highly recommend Marx Mechanical!"
Marx Mechanical replaced our old furnace with a new heat pump which has kept our house warm all winter. They worked with us to find the perfect system for our home and our unique needs.
Serena E. -
"Excellent HVAC company to work with!"
They took time to work with us to get the best furnace/heat pump to replace our 20-year-old furnace. They've checked in with us regularly, and while we haven't had any issues, we know that they would go above and beyond to fix anything!
Val R. -
"Great service!"
We have used Marx Mechanical on a number of occasions now and they are always professional and reasonably priced. I would recommend them if you are in the Uxbridge area!
Kolton K. -
"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. -
"They have earned my trust!"
I received a quick reply from Marx and they were able to see me even faster than promised. In my conversations with the repair person, I felt that he knew his stuff and provided a lot of helpful information. I will continue to call on them when needed.
Dave M. -
"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. -
"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.
What Makes Us Different? Benefits of Working with Our Expert Team
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Local Values - Exceptional ServiceBeing 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.
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Year-Round Comfort With Our MembershipsOur membership plans are designed to keep your systems running smoothly all year long. Enjoy exclusive perks like priority service, discounted repairs, and regular maintenance.
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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.
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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.
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Join the Marx Comfort ClubYear-round comfort is only a click away! Our membership plans offer priority service, discounted repairs, and more!
