Best Bonded HVAC Contractors in Mayer, MN
6 HVAC contractors registered in Mayer 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 6 are listed below, ordered by years bonded.
How we chose: We identified 6 companies registered in Mayer. 6 passed bond verification. All 6 are listed below. Our methodology
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- Verified
- August 18, 2026
- Bonded since
- 2016
- Bond expires
- 2026-09-16
- Phone
- 6127021390
- Verified
- August 18, 2026
- Bonded since
- 2020
- Bond expires
- 2028-06-30
- Phone
- 9528269356
- Verified
- August 18, 2026
- Bonded since
- 2022
- Bond expires
- 2028-08-01
- Phone
- 6123964075
- Verified
- August 18, 2026
- Bonded since
- 2022
- Bond expires
- 2027-07-29
- Phone
- 9522128978
- Verified
- August 18, 2026
- Bonded since
- 2023
- Bond expires
- 2027-12-04
- Phone
- 9525290412
- Verified
- August 18, 2026
- Bonded since
- 2025
- Bond expires
- 2027-03-28
- Phone
- 6125011041
Compare the top 6 at a glance
| Company | Bond | Credential | On file since |
|---|---|---|---|
| Cool Runnings LLC | #MB715890 | Mechanical Contractor Bond | 2016 |
| Mark Guy Heating & Air | #MB770407 | Mechanical Contractor Bond | 2020 |
| Watson Mechanical LLC | #MB797486 | Mechanical Contractor Bond | 2022 |
| Nace Heating & Cooling Inc. | #MB800533 | Mechanical Contractor Bond | 2022 |
| Warwick Plumbing And Heating LLC | #MB100050 | Mechanical Contractor Bond | 2023 |
| Redline Heating And Cooling LLC | #MB100342 | Mechanical Contractor Bond | 2025 |