Tonna Mechanical provides furnace repair, air conditioning service, plumbing, water heaters and water treatment for homes and businesses in Northfield, Minnesota. Our technicians are on call 24 hours a day, 7 days a week, and we have been serving Minnesota families since 1976.
Northfield has everything from historic homes near downtown to newer houses on the edges of town. Older homes often have boilers or aging ductwork, and we work on both.
Call 507-288-1908 or request an appointment online.
Heating repair and furnace replacement in Northfield
When your furnace stops working in the middle of a Minnesota winter, you need someone fast. We arrive in fully stocked vehicles so we can finish most repairs on the spot. If your furnace is older and the repairs keep adding up, we will show you your options for a new, energy-efficient furnace or heat pump, including industry-leading Carrier equipment. We also service boilers and heat pumps.
- Furnace repair and no-heat calls in Northfield
- Furnace replacement and installation
- Furnace tune-ups
Air conditioning repair and installation in Northfield
If your air conditioner quits on a hot day, our NATE-certified technicians can diagnose it and get you cool again. We repair all makes and models, install new central air conditioners and ductless mini-splits, and offer free second opinions and in-home estimates.
Plumbers and water heaters in Northfield
Our plumbers handle everything from leaks and clogged drains to frozen pipes and full water heater replacements, including tankless water heaters. Plumbing emergencies in Northfield are covered 24/7.
Water treatment, air quality and duct cleaning
We install and service water softeners, iron filters and drinking water systems, and we offer duct cleaning, humidifiers and air cleaners to keep your indoor air healthy.
Why Northfield homeowners choose Tonna
- Serving Minnesota since 1976
- Open 24 hours a day, 7 days a week
- NATE-certified technicians and experienced plumbers
- Fully stocked vehicles, so most repairs are done in one visit
- Free second opinions and in-home estimates
- A free year of maintenance with major heating and cooling purchases
- Financing available on new systems
- Voted the Best HVAC Company and the Best Plumbing Company
Join the “Just Right” Comfort Club for an annual air conditioner tune-up, furnace tune-up, whole-home plumbing check and member discounts. Learn about the Comfort Club.
Areas near Northfield we serve
Besides Northfield, our team serves Farmington, Lakeville and Apple Valley. See all service areas.
Frequently asked questions
Do you offer 24/7 emergency service in Northfield?
Yes. Tonna Mechanical is open 24 hours a day, 7 days a week. If your furnace, air conditioner or plumbing fails in Northfield, call 507-288-1908 any time.
Should I repair or replace my furnace?
It depends on the age of your furnace, how often it needs repairs and how much it costs to run. Our technicians will give you an honest recommendation, and we offer free second opinions and in-home estimates on replacements.
Do you offer financing on a new furnace or air conditioner?
Yes. We offer financing on new heating and cooling systems, and major heating and cooling purchases include a free year of maintenance.
What brands do you service in Northfield?
We repair all makes and models of furnaces, air conditioners, boilers, heat pumps and water heaters, and we install industry-leading Carrier equipment.
How do I schedule service?
Call 507-288-1908 or fill out our appointment request form, and our team will contact you to confirm a time.