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The Best Heating, Cooling, Water Treatment, & Plumbing Services in Rochester, Minnesota

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Tonna Mechanical is here to ensure that every
space in your home or office is always just right!

EST 1976

Why Choose Tonna?

World Class Quality

You can rely on us for quality products, quality service, and quality workmanship on every job, everyday.

Outstanding Value

Continually delivering cost-effective long-term solutions. We provide outstanding value every step of the way.

Continuing Adaptability

You deserve the latest and greatest products and services, so we always stay current with the newest products, techniques, and technologies.

Unparalleled Integrity

Integrity means everything to us. It’s how we earn our customers trust and it’s the reason so many of our customers have been with us for decades.

Since the mid-1970’s, Tonna Mechanical has been the only name our customers need to know for all their home and business indoor comfort needs!

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A plus accredited BBB
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$99 Furnace Tune-Up

No Breakdown Guarantee!



Save up to $2855 in combined rebates* with the purchase of a new furnace and A/C!

*On qualifying products


Join our "Just Right" Comfort Club


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