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Boiler Maintenance

Boiler Maintenance in Uxbridge, ON

Licensed Hydronic & Navien Boiler Service for Durham & York Region Homeowners

When your boiler is the backbone of your home’s heat, the team you call for annual maintenance matters. Marx Mechanical Heating and Cooling is a family-owned HVAC business based in Uxbridge, Ontario, with over 20 years of collective experience in hydronic heating and Navien combi systems. We’ve serviced more than 7,000 units across Durham and York Region, and our 4.9 Google rating reflects the trust homeowners place in us before every heating season.

Annual boiler maintenance can help reduce the risk of unexpected breakdowns, support safe and efficient system operation, and help maintain your manufacturer warranty. Scheduling before the first hard frost means you’re not waiting in line when temperatures drop.

Call us at (289) 301-0414 to book your boiler maintenance visit or ask about our Comfort Club membership. We answer 24/7.

The Marx Promise: What Every Boiler Maintenance Visit Delivers

Every service we perform is backed by The Marx Promise, our commitment to balancing cost, efficiency, and reliability on every job. That means upfront, flat-rate pricing with no hidden fees, a licensed technician who knows your equipment, and service built around your needs rather than a sales pitch.

As a Daikin Comfort Pro Partner, we maintain strong manufacturer relationships that give us access to energy-efficient products and the technical depth to service all major boiler brands. Financing through Financeit is available for customers who need it.

Marx Comfort Club: Boiler Maintenance on Autopilot

The Marx Comfort Club Boiler/Tankless add-on is $14.99 per month. Membership handles your annual preventive maintenance visit automatically, so you don’t have to remember to book before fall.

Members receive:

  • Priority service with no overtime charges
  • Pre-scheduled annual maintenance visit conducted by a licensed technician
  • Discounts on diagnostic fees, parts, quoted repairs, and air quality products
  • Free replacement of standard-sized filters
  • A comprehensive equipment report card after every visit
  • 1-year warranty on repairs

For Uxbridge homeowners whose boiler runs hard from October through April, the Comfort Club turns annual maintenance into one less thing to manage.

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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

Navien & Hydronic System Service in Uxbridge

We focus on Navien boiler repairs, diagnostics, and maintenance, covering both combi boilers and full hydronic heating systems. Combi boilers handle both space heating and domestic hot water from a single unit, so our annual maintenance covers both functions to support consistent performance year-round.

Full Hydronic System Inspection

A hydronic heating system is more than the boiler itself. It includes circulators, zone valves, expansion tanks, radiators, baseboard convectors, and in-floor radiant loops. Whether your home runs a single-zone baseboard setup or a multi-zone radiant floor system, our technicians inspect the full picture during every maintenance visit.

All Major Boiler Brands Serviced

We also service Viessmann, IBC, NTI, Lochinvar, Triangle Tube, Rinnai, Baxi, and Buderus equipment. Our manufacturer relationships give us the technical depth to tune each brand based on its engineering, not just run through a generic checklist.

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

    "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.
    "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.
    "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.
    "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.
    "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.
    "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.
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Signs Your Boiler Needs Professional Attention

Some warning signs are easy to miss until the system fails. If you notice any of the following, call us before the issue gets worse:

  • Unusual gurgling, banging, or clanking noises from the unit or pipes
  • Uneven heat distribution across rooms or zones
  • Rising energy bills without a change in usage habits
  • Pressure gauge readings that are consistently too high or too low
  • The pilot light or ignition cycling on and off repeatedly
  • Visible leaks or corrosion around the unit
  • A yellow or irregular flame instead of a steady blue flame
  • The system taking longer than usual to reach set temperatures

Any one of these signals is worth a call. Several together mean you shouldn’t wait.

Book Boiler Maintenance with Marx Mechanical Heating and Cooling

Uxbridge winters are hard on hydronic systems. A properly maintained boiler can run more safely and reliably and give you more confidence heading into the season. Our licensed team is ready to schedule your annual tune-up or get you set up with the Marx Comfort Club so maintenance happens automatically every year.

We serve Uxbridge and the surrounding Durham and York regions and are available around the clock for anything urgent. The Marx Promise backs every visit: transparent pricing, experienced technicians, and service that balances cost, efficiency, and reliability.

Call Marx Mechanical Heating and Cooling at (289) 301-0414 to book your boiler maintenance in Uxbridge, ON or ask about Comfort Club membership 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!