Business Details
50 Years
experience
Emergency
services
Trusted HVAC & Plumbing Services in Rochester, MN
Since 1976, Tonna Mechanical has been a trusted provider of heating, cooling, plumbing, and indoor air quality solutions in Southeastern Minnesota. Our team of NATE-certified technicians and licensed plumbers delivers 24/7 emergency services, specializing in Carrier products and Hellenbrand water treatment systems. With decades of combined experience, we prioritize honesty, trust, and professionalism, offering tailored maintenance plans like our Just Right Comfort Club to ensure long-term system efficiency. Our commitment to community-driven service and transparent communication has earned us a reputation as a leader in residential and commercial comfort solutions. 
Services
Heating Repair
Cooling Installation
Plumbing Services
Duct Cleaning
Water Treatment
Details
- Year established: 1976
Highlights and features
- 48 years of local HVAC and plumbing expertise since 1976
- 24/7 emergency repair services available year-round
- NATE-certified technicians for industry-leading standards
- Free annual maintenance with major system purchases
- Transparent pricing and financing options available
Associations and certifications
- Carrier Factory Authorized Dealer
- North American Technician Excellence (NATE)
What people say
Excellent service
Professional and knowledgeable
Exceptional service
On time and efficient
Super professional
Services
Heating Repair
Our NATE-certified technicians provide 24/7 emergency heating repairs for furnaces, boilers, and heat pumps. Using Carrier-certified parts, we restore winter comfort with same-day fixes and long-term reliability. Customers praise our rapid response times and transparent diagnostics, even for complex systems over 30 years old.
Cooling Installation
We install energy-efficient Carrier air conditioning systems with precision, including central AC, mini-splits, and smart thermostat integration. Our team ensures proper sizing and ductwork optimization to maximize cooling performance while reducing energy bills by up to 30%.
Plumbing Services
From burst pipe emergencies to water heater replacements, our licensed plumbers handle all residential and commercial plumbing needs. We specialize in repiping, gas line safety, and water treatment systems like Hellenbrand softeners to address Minnesota's hard water challenges.
Duct Cleaning
Our EPA-registered duct cleaning removes allergens, dust, and debris buildup in HVAC systems. Using industrial vacuums and rotary brushes, we improve airflow efficiency by up to 25% while reducing indoor pollutants that trigger allergies and respiratory issues.
Water Treatment
We combat Minnesota's hard water with Hellenbrand filtration systems that remove iron, sulfur, and scale buildup. Our solutions improve appliance lifespan, reduce soap usage, and deliver cleaner-tasting drinking water through customized whole-home treatment plans.
Questions
Do you offer 24/7 emergency HVAC services?
Yes, Tonna Mechanical provides 24/7 emergency repair services for heating and cooling systems in Southeastern Minnesota.
What areas do you service?
We serve Rochester, Owatonna, Mankato, Minneapolis/St. Paul, and surrounding communities in Southeastern Minnesota.
Are financing options available for new systems?
Yes, we offer special financing promotions and equipment subscriptions to make HVAC upgrades more affordable.
Do you install Carrier HVAC products?
As a Carrier Factory Authorized Dealer, we install and service Carrier heating, cooling, and air quality systems with 100% manufacturer guarantees.
How can I schedule service?
Call 507-205-2873 for emergencies or book online for routine maintenance and installations through our customer portal.
What is the Just Right Comfort Club?
Our maintenance membership includes annual tune-ups for HVAC and plumbing systems, filter discounts, and priority service scheduling to prevent costly breakdowns.
Videos
