About Tonna

about tonna « home

History & Services

Tonna Mechanical, Inc. is locally owned and operated by Steve Murphy and Larry Strande. Steve and Larry have a combined 60 years experience in the HVAC and Refrigeration business. They and their employees are skilled and experienced in designing, installing and fabricating HVAC and Refrigeration systems. Tonna has worked in many homes and commercial buildings in Southeast Minnesota, including Rochester, Mankato, and the Minneapolis/St. Paul metro areas. Providing full services for heating, air conditioning, ventilation, plumbing, water conditioning, refrigeration, and controls since its inception in 1976, Tonna Mechanical, Inc. has made a commitment to quality, integrity, and reliability. Supported by a professional management team, our goal is to be your mechanical contractor of choice by offering your company the best service possible at a reasonable price - from routine maintenance to complete installations.

Factory Authorized Dealers

For all your home heating and cooling needs, turn to the experts: Carrier Factory Authorized Dealers. From determining the comfort system best suited to you to installing and servicing that system, you can count on these dealers, who receive the Carrier Factory Authorized Dealer seal of approval only after meeting Carrier’s high standards.

Carrier stands behind it’s seal with a 100% satisfaction guarantee when you purchase Carrier equipment from a Factory Authorized Dealer.

As a Factory Authorized Dealer, Tonna Mechanical has met Carrier’s stringent quality requirements and closest scrutiny of our technical expertice, business practices and customer service. You can trust you’ll find excellent products and service, paired with knowledge and experience, at Tonna Mechanical.

All Carrier Factory Authorized Dealers have at least one service technician who has earned a NATE certification. North American Technician Excellence (NATE) is the leading certification program for technicians in the heating, ventilation, air-conditioning, and refrigeration industry and is the only test supported by the entire industry.

Not only is Tonna Mechanical, Inc. committed to serving you, our customer, but we’re committed to technical excellence, too. That’s why we require all of our technicians and installers to be N.A.T.E certified. N.A.T.E., or North American Technical Excellence, is the industry standard for certification. You can read more about this prestigious program on the web at www.natex.org.

Mission Statement

To be the premier heating, air-conditioning, refrigeration and plumbing contractor by providing outstanding products and customer service that is second to none.