DNM Mechanical Group | Plumbing, Heating & Cooling in Sault Ste. Marie

- WHO WE ARE

Locally Owned & Operated

DNM Mechanical Group brings DNM Plumbing & Heating and DNM Heating & Cooling under one roof — so the plumber, the furnace tech, and the A/C installer all answer to the same local crew.

We started with one truck in 1994. Today we run a full fleet of over 30 vehicles across Sault Ste. Marie and the Algoma District, serving homes, businesses, and institutions — with the same people you'll see around town.

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The six shareholders of DNM Mechanical Group — DNM Group shareholders

- WHAT WE DO

Every System, ONE Team.

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Plumbing

Repairs, renovations, water treatment, and hot water — residential and commercial.

Plumbing Renovations
Water Heaters — Tank & Tankless
Water Treatment & Filtration
Drain & Fixture Repairs
Commercial Plumbing

Heating

Furnaces, boilers, radiant heat, and gas fitting — built for Northern Ontario winters.

Furnaces
Boilers
In-Floor & Radiant Heat
Fireplaces & Gas Stoves
Gas Fitting & Piping

Cooling

Central air, heat pumps, and ductless systems — sized right and installed clean.

Air Conditioners
Ductless Systems
Heat Pumps
Duct Cleaning — The Duct Truck™
Ductwork & Airflow

Service & Specialty

We answer day or night — and keep your systems running the rest of the year.

24/7 Emergency Service
Maintenance Plans
Napoleon BBQ Sales & Service

- THE DNM DIFFERENCE

Why DNM? Three Simple Reasons.

01

Expertise

Decades in the Soo, and technicians who know how these systems behave in our climate.

02

Integrity

Honest diagnostics and fair pricing, from the first call to the final inspection.

03

Transparency

Clear, detailed quotes and straightforward pricing. No hidden fees, ever.

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- THE DNM GUARANTEE

Your Satisfaction Is Our Success

Every customer deserves exceptional service. As the Soo's top provider of residential and commercial plumbing, heating, and cooling, we go above and beyond to meet your needs with professionalism, expertise, integrity, and transparency.

Find out why we've been Sault Ste. Marie's preferred choice since 1994.

DISCOVER THE DIFFERENCE

4.8

Google Rating

From 564 verified Google reviews across both divisions — left by neighbours in the Soo and across Algoma who called us for everything from a burst pipe to a full furnace replacement.

Combined rating for DNM Plumbing & Heating and DNM Heating & Cooling.

- WHAT THEY SAY

Trusted by Our Customers

Don't just take our word for it — here's what our customers have to say about working with DNM.

We had to replace our sewer line last year - the entire process working with the team at DNM was amazing. There was a small complication this past spring we encountered and working with their emergency crew and then follow up repair workers was just as great! Very responsive, very professional and friendly. Highly recommend their plumbing services!

- HP93

We have used DNM for several projects including plumbing, heat pump installation and home renovation services. More recently, we had a larger renovation done requiring engineering and structural changes. DNM delivered on all fronts for this project. A big shout out to Shawn for seamlessly overseeing our project with little to no hiccups, Dave and Shane were professional and took the time to discuss all phases of the project, answered all our questions and even took the time to explain the structural changes in our crawl space to make sure we were well informed. Brent and his plumbing team were equally as knowledgeable and offered considerations to help better serve the end result. DNM delivered on time and on budget! They listened and cared about our overall satisfaction at the end of the project. Thank you so much for everything. Our family is very grateful for your help in turning our house into our personalized forever home. We have no hesitation recommending DNM to others.

- Courtney Askin

This company is positively the best I have dealt with in a long time. Prompt, courteous and competitive.

- Tym Garside

We were very interested in updating our HVAC system. We researched the hybrid system and decided on the Napoleon, made in Barrie, Ontario, Canada. Our DNM contact, Jonathan took care of all the details. Our system consists of the 9700 furnace and heat pump. It came just in time for the summer heat and the air conditioning aspect is working perfectly. I have the fan set on circulate to draw up the cooler air from the basement. This new system is so quiet, we don't even hear it kick in. The installers, Norm and Nick, did a great job, they managed to use the same route for the new heat pump as the old air conditioner, which saved any need to open up the ceiling in the finished basement area. For a professionally handled HVAC system update, I would recommend DNM, Sault Ste Marie. Thank you, DNM. K and S.

- starrynight

- PART OF THE FAMILY

One Group. Two Divisions. The Same TEAM you Know and Trust

As DNM Group has grown, we've created dedicated Plumbing & HVAC divisions to better serve our customers. While our services are more specialized, you'll still work with the same local team that's been serving our community with trusted workmanship, honest advice, and exceptional customer care for years. We call it The DNM Difference—and it continues across every division.

Plumbing renovations, water treatment, hot water, and in-floor heat — serving the Soo since 1994.

Furnaces, air conditioning, heat pumps, ductless, duct cleaning, and fireplaces.

DNM Mechanical Group is one of several companies under the newly formed DNM Capital Partners, formerly DNM Group Ltd — local service backed by the depth and stability of a larger organization.

Formerly DNM Group