Best Bonded HVAC Contractors in Winona, MN
7 HVAC contractors registered in Winona hold current DLI mechanical contractor bonds, verified against official records as of August 18, 2026. Minnesota does not license mechanical contractors - the state requires a contractor bond filed with DLI instead, and that is the credential verified here. All 7 are listed below, ordered by years bonded.
How we chose: We identified 7 companies registered in Winona. 7 passed bond verification. All 7 are listed below. Our methodology
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- Verified
- August 18, 2026
- Bonded since
- 2009
- Bond expires
- 2028-08-18
- Phone
- 5074547689
- Verified
- August 18, 2026
- Bonded since
- 2009
- Bond expires
- 2028-07-23
- Phone
- 5074527587
- Verified
- August 18, 2026
- Bonded since
- 2009
- Bond expires
- 2027-08-25
- Phone
- 5074507832
- Verified
- August 18, 2026
- Bonded since
- 2010
- Bond expires
- 2028-02-26
- Phone
- 5074543049
- Verified
- August 18, 2026
- Bonded since
- 2012
- Bond expires
- 2026-10-20
- Phone
- 5074548799
- Verified
- August 18, 2026
- Bonded since
- 2016
- Bond expires
- 2028-01-01
- Phone
- 5074526340
- Verified
- August 18, 2026
- Bonded since
- 2016
- Bond expires
- 2028-08-01
- Phone
- 5074543814
Compare the top 6 at a glance
| Company | Bond | Credential | On file since |
|---|---|---|---|
| River City Heating & Air Conditioning LLC | #MB003282 | Mechanical Contractor Bond | 2009 |
| Plumbers Mechanical Group LLC | #MB003378 | Mechanical Contractor Bond | 2009 |
| Mike Sherman Plumbing And Heating Inc. | #MB003446 | Mechanical Contractor Bond | 2009 |
| Hormans Hvac LLC | #MB004929 | Mechanical Contractor Bond | 2010 |
| Todds Refrigeration LLC | #MB659645 | Mechanical Contractor Bond | 2012 |
| Olaughlin Trucking & Excavating Mechanical LLC | #MB702798 | Mechanical Contractor Bond | 2016 |