#1 Heating & Cooling Contractor #1 in Furnace Repair & Maintenance #1 Gas Fitting & Piping Contractor #1 Fireplace & Gas Stove Installer

Sault Ste. Marie's Premier

HVAC Maintenance Experts

The Most Reliable Local Heating and Cooling Service Technicians in the Algoma District

Friendly Service, Quick Estimates, Licensed & Local

DNM Heating & Cooling is the preferred HVAC service provider in Sault Ste. Marie and the extended Algoma District. With years of experience and a reputation for excellence, we understand the crucial role a reliable and efficient heating and cooling system plays in your home. As the seasons change, the demand on your HVAC system can vary dramatically, making regular maintenance essential for consistent performance. Our team of certified professionals is dedicated to ensuring your comfort throughout the year by providing top-notch service and support. We offer comprehensive maintenance memberships designed to keep your equipment in top condition, providing peace of mind and comfort all year round.

Whether it’s the sweltering heat of summer or the biting cold of winter, our goal is to ensure your HVAC system operates flawlessly. By choosing DNM Heating & Cooling, you are opting for unparalleled expertise, superior customer service, and the assurance that your home’s climate control systems are in the best hands. Our memberships are tailored to meet the diverse needs of our clients, ensuring that every aspect of your HVAC system receives the attention it needs to perform optimally.

Why Sign Up for a Maintenance Membership?

The Comprehensive Benefits of Regular HVAC Maintenance

A maintenance membership with DNM Heating & Cooling is more than just a service agreement; it’s a commitment to maintaining your home’s comfort and efficiency. Here are some compelling reasons to consider joining our maintenance program:

Preventative Care

Regular maintenance by our certified technicians ensures that potential issues are identified and addressed before they become major problems. This proactive approach helps prevent unexpected breakdowns that can lead to costly emergency repairs and significant inconvenience. By scheduling regular check-ups, you can avoid the discomfort and stress associated with a failing HVAC system during extreme weather conditions.

Investing in a maintenance membership can lead to substantial savings over time. Well-maintained systems operate more efficiently, consuming less energy and reducing your utility bills. Additionally, by preventing major breakdowns and extending the lifespan of your equipment, you save money on expensive repairs and replacements. Our members also enjoy exclusive discounts on parts and labor, making it even more affordable to keep your system in top shape.

HVAC systems that receive regular maintenance tend to have a longer operational life. Components that are clean, lubricated, and properly adjusted experience less wear and tear, reducing the likelihood of premature failure. This means you get more years of reliable service from your investment, delaying the need for costly replacements.

A well-maintained HVAC system ensures consistent and optimal performance, maintaining the desired temperature throughout your home. Regular cleaning and maintenance also improve indoor air quality by removing dust, pollen, and other allergens from the system. This is particularly beneficial for households with members who have allergies or respiratory conditions.

As a maintenance member, you receive priority service, meaning faster response times and preferential scheduling. This is particularly valuable during peak seasons when service demand is high. Our members can enjoy the convenience of pre-scheduled maintenance visits, ensuring their systems are always in peak condition without the need to remember to book appointments.

Knowing that your HVAC system is regularly maintained by trusted professionals gives you peace of mind. You can rest assured that your home will remain comfortable and that any potential issues will be promptly addressed. Our comprehensive maintenance checks and thorough servicing mean fewer surprises and more reliable performance year-round.

Comprehensive Maintenance Services

All-Inclusive Care for Your HVAC System

Our maintenance memberships are designed to cover all aspects of your HVAC system, ensuring comprehensive care and optimal performance. Regular maintenance is essential to keeping your heating and cooling systems running smoothly, efficiently, and reliably. At DNM Heating & Cooling, we offer a variety of maintenance plans tailored to meet the unique needs of different types of equipment, ensuring that each component of your HVAC system receives the attention it needs:

Essential Comfort Plan

Heat Pumps, Boilers, and Furnaces:
Keep Your Heat Pumps, Boilers, and Furnaces Running Smoothly
$ 280
  • Annual maintenance for one head for heat pumps (additional heads are $65 each).
  • 20% discount on parts and labor for repairs not covered under the maintenance agreement.
  • Priority service, ensuring you receive prompt attention, especially during peak seasons.
  • 24/7 emergency heat coverage, guaranteeing that you won’t be left without heat when you need it the most.
  • Comprehensive inspection and cleaning of critical components.
  • Lubrication of moving parts to minimize wear and tear.
  • Testing and adjustment of burners and controls to maintain optimal performance.

Ultimate Combo Plan

Combi Boilers or Furnace and Air Conditioner Combo:
Comprehensive Care for Furnace and Air Conditioner Combos
$ 425
  • Annual maintenance for both the furnace and air conditioner, performed during the same visit.
  • 20% discount on parts and labor for non-covered repairs.
  • Priority service for emergency heat coverage, ensuring your comfort is restored quickly.
  • Detailed inspection and servicing of both heating and cooling units.
  • Cleaning and maintenance of coils, filters, and other essential components.
  • Performance testing to ensure both systems are operating at peak efficiency.

Cozy Hearth Plan

Fireplace Membership:
Expert Maintenance for Your Fireplace
$ 318
  • Annual maintenance of the fireplace unit.
  • 20% discount on parts and labor for repairs not included in the agreement.
  • Priority scheduling for service calls.
  • Inspection and cleaning of the logs, glass, burner, and fan.
  • Adjustment of settings to ensure safe and efficient operation.

Note: All equipment must be verified by a technician before a membership can be approved. This verification process ensures that your system is suitable for the maintenance plan and meets our standards for safe operation.

Maintenance and Service Process

Tailored Care for Different Equipment Types

Our maintenance process is thorough and customized to address the specific needs of various HVAC systems. Here’s how we approach the maintenance of different types of equipment:

Furnaces and Boilers

Inspection: Our technicians conduct a detailed inspection of the heat exchanger, fan, venting, and chimney. This helps identify any potential issues that could affect performance or safety.

Cleaning: We clean all critical components, including the burner and fan, to ensure efficient operation and prevent buildup that could lead to system failure.

Lubrication: Moving parts are lubricated to reduce friction and wear, extending the life of the components.

Testing and Adjustment: Burners and controls are tested and adjusted as needed to ensure optimal performance and safety.

Inspection: Technicians examine the coils, refrigerant levels, and overall system performance to detect any issues that might affect cooling efficiency.

Cleaning: Condenser and evaporator coils are cleaned to maintain efficiency and prevent system strain.

Filter Replacement: Air filters are replaced or cleaned to improve air quality and system efficiency.

Performance Testing: The entire system is tested to ensure it operates at peak performance, providing reliable cooling throughout the season.

Inspection: Logs, glass, burner, and fan are checked for wear and cleanliness to ensure safe and efficient operation.

Cleaning: The fireplace is thoroughly cleaned to remove soot and debris that could affect performance.

Adjustment: Settings are adjusted to ensure optimal performance and safety, providing reliable warmth and ambiance.

By choosing a maintenance membership with DNM Heating & Cooling, you ensure that every aspect of your HVAC system receives professional attention, helping to maintain comfort and efficiency throughout the year. Contact us today to learn more about our maintenance plans and how they can benefit you.

The DNM Guarantee

Your Satisfaction
is Our Success

At DNM Heating & Cooling, exceptional service is not just a promise—it’s our standard. As Sault Ste. Marie’s leading residential HVAC provider, we pride ourselves on exceeding expectations with our professionalism, expertise, and integrity. From expert installations to reliable repairs and comprehensive maintenance, we tailor our services to meet all your heating and cooling needs.

Our skilled team is dedicated to ensuring your HVAC systems operate at peak performance. We provide high-quality solutions at competitive prices, with a focus on transparency—no hidden fees. Our unwavering commitment to quality workmanship and customer satisfaction is why more residents trust DNM Heating & Cooling every day.

Discover why DNM Heating & Cooling is the top choice for enhancing home comfort and efficiency in Sault Ste. Marie. Join our growing community of satisfied customers today.

Why DNM?

Three simple reasons.


With decades of combined experienced serving the Sault, our team brings a deep understanding of heating and cooling systems in our climate. Our seasoned technicians are equipped with the knowledge to handle installations, maintenance, and repairs with precision and the latest technology in the HVAC industry. We ensure that every system we work on is optimized for efficiency and reliability.


At DNM Heating & Cooling, we are committed to upholding the highest standards of integrity. We build trust with our clients through clear communication, ethical business practices, and a steadfast commitment to their interests. From honest diagnostics to fair pricing, our primary goal is to provide you with the best possible service and ensure your HVAC needs are met with the utmost professionalism.


Transparency is at the core of all our interactions. DNM offers straightforward pricing with no hidden fees. We provide clear, detailed quotes, without pushy sales tactics, keeping you well-informed throughout the entire process. This clarity allows you to plan and budget with confidence, ensuring a seamless and stress-free experience from initial contact to project completion.


Any questions?

A maintenance membership ensures regular inspections, cleaning, and servicing of your HVAC system, which helps prevent breakdowns, extend equipment lifespan, and improve efficiency. Members also enjoy priority service, exclusive discounts, and peace of mind knowing their system is in expert hands.

Yes, you can become a maintenance member with existing equipment. However, all equipment must be verified by a technician before membership approval to ensure it meets our standards and is suitable for the maintenance plan.

Maintenance services include a comprehensive inspection, cleaning, lubrication, testing, and adjustment of your HVAC system. Our services are tailored to the specific needs of different types of equipment, ensuring thorough care and optimal performance.

It is recommended to schedule maintenance at least once a year. Ideally, maintenance should be performed before the start of the heating and cooling seasons to ensure your system is ready to handle the demands of the upcoming weather.

If your HVAC system breaks down despite regular maintenance, contact us immediately. As a maintenance member, you receive priority service, ensuring that your repair needs are addressed promptly. Our skilled technicians will diagnose and fix the issue to restore your comfort as quickly as possible.

Contact Us

Book your appointment

Part of the Family

Being a member of DNM Group means you can be assured of our dedication to maintaining the highest level of customer service and craftsmanship that stands out from the competition. We call this commitment to excellence ‘The DNM Difference,’ setting new standards in quality and reliability across all our operations.