- WHAT WE DO
One local team for every mechanical system in your home or business. From emergency service and repairs to full renovations, we proudly serve residential, commercial, and industrial clients. DNM Mechanical Group has served Sault Ste. Marie and the Algoma District with expertise, integrity, and transparent pricing since 1994.
Since 1994
Serving the Algoma District
24/7
Emergency response
4.8★
Google rating from 564 reviews
- OUR TRADES
Every system in your building, handled by the same local crew you already trust.
Dependable Solutions for Every Home and Business
Repairs, renovations, water treatment, and hot water systems for residential and commercial clients across the Soo — plus complete, end-to-end plumbing and heating solutions for your project.
Request a Plumbing QuoteGas, Propane and Electric
Furnaces, boilers, heat pumps, in-floor heating, gas fitting, and fireplace installation to keep you warm through Northern Ontario winters.
Request a Heating Quote- EVERY SERVICE
Multiple services under one roof, delivered by journeymen and apprentices who live in the communities they serve.
Plumbing
Innovative and Efficient Upgrades
Bathrooms, kitchens, and whole-home repipes — plus new construction rough-ins. We handle design, fixtures, and final inspection, so the trades line up and the project actually finishes.
Learn moreEndless Hot Water Supply
Traditional tanks, tankless systems, and boilers, sized to how your household actually uses water.
Learn moreAdvanced Filtration Solutions
Softeners, filtration, reverse osmosis, and UV — starting with a free water chemistry analysis.
Heating
Reliable Warmth When You Need It
Gas furnace installation, repair, and maintenance built for Northern Ontario winters.
Learn moreEfficient Radiant Heat Systems
For homes running radiators or underfloor loops, installed and serviced by licensed techs.
Learn moreComfort and Character in Any Room
Gas fireplace and stove installation, conversions, and service — venting and gas fitting handled by our own licensed techs.
Cooling & Air
Efficient Heating & Cooling Year-Round
One system that heats and cools, with rebates and incentives available. The most efficient upgrade most Sault homes can make.
Cool Comfort All Summer Long
Central air installation and maintenance, sized correctly for your space.
Learn moreTargeted Comfort Without Ducts
Mini-splits for additions, garages, and any space without existing ductwork.
Learn moreIndoor Air Quality
Cleaner Air in Every Room
Whole-home air cleaners and high-efficiency filtration that capture dust, dander, and airborne particles before they circulate through your ductwork.
Balanced Air Year-Round
Whole-home humidifiers and dehumidifiers that protect floors and finishes and keep winter air comfortable to breathe.
Fresh Air Without the Heat Loss
Heat and energy recovery ventilators that swap stale indoor air for fresh without throwing away the heat you paid for.
Emergency & Commercial
Immediate Assistance Anytime
Burst pipes, no heat, no cooling, refrigerant leaks. Our emergency line is answered by the same local crew that installed and services your system — hear from an actual tech within the hour.
Learn moreTailored Solutions for Businesses
Commercial plumbing and HVAC design, installation, and service contracts.
Extend Life, Enhance Performance
Preventative packages that protect your equipment and keep your warranty valid.
Learn more- HOW IT WORKS
Our vision is simple: make quotes, scheduling, and work execution seamless and stress-free.
01
A free in-home visit to understand the problem, your space, and your budget — no pushy sales tactics.
02
A clear, detailed quote with the scope, materials, and timeline written down before anyone lifts a tool.
03
Licensed journeymen and apprentices do the work, respect your home, and clean up after themselves.
04
We test, calibrate, and walk you through the finished system before we call it done.
Decades of combined experience serving the Soo, with lifelong specialists deeply invested in the community.
Clear communication and ethical business practices, held to the highest standard on every job.
Straightforward pricing with no hidden fees — clear, detailed quotes, every time.
- MAINTENANCE PLANS
Preventative care that stops major breakdowns before they start and extends equipment life.
Heat Pumps, Boilers, Furnaces, Air Conditioners
Annual maintenance for one head (additional heads $65 each)
20% discount on parts and labour for non-covered repairs
Priority service and 24/7 emergency heat coverage
Comprehensive inspection, cleaning, lubrication, and testing
Free diagnostics (normal hours of operation)
Free after hours diagnostics for furnaces
Furnace & Air Conditioner Combos
Annual maintenance for both units during the same visit
20% discount on parts and labour for non-covered repairs
Priority service and 24/7 emergency heat coverage
Detailed inspection of coils, filters, and components
Free diagnostics (normal hours of operation)
Fireplace Membership
Annual fireplace maintenance
20% discount on parts and labour for non-covered repairs
Priority scheduling
Free diagnostics (normal hours of operation)
Free after hours diagnostics for furnaces
Across 564 verified reviews for DNM Plumbing & Heating and DNM Heating & Cooling — the same technicians who service these plans are the ones our customers are rating.