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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"Every step was smooth and competently handled."
We contracted Marx to replace our aging oil furnace with a high-efficiency heat pump. They arrived, promptly and prepared, on the agreed-upon installation date, protected walls and floors, worked diligently, and cleaned up afterward. Very professional!
Jabette B. -
"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. -
"I highly recommend this company!"
I had a new heat pump installation by Marx Mechanical. Thank you Jason, TJ & Tyler. Very professional company to work with. I couldn't be happier with the installation; it exceeds my expectations.
Susan C. -
"Marx Mechanical staff are courteous and professional!"
My furnace suddenly died and Marx Mechanical staff rearranged their schedule to be here the next day to replace my furnace (in a snowstorm). All my questions were answered and they even helped me set up the Daikin app on my phone.
Karen B. -
"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. -
"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. -
"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.
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!
