Best Licensed HVAC Contractors in Flagstaff, AZ
28 HVAC contractors registered in Flagstaff hold current ROC licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 29 active ROC HVAC licenses registered in Flagstaff
- License scopes in Flagstaff: 24 dual (residential and commercial), 5 residential-only; commercial-only licenses never appear here
- Median time licensed in Flagstaff: 13 years
- Longest Flagstaff licensure: since 1994
- 3 of Flagstaff's licenses (10.3%) have been held 25 or more years
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- Verified
- August 17, 2026
- Licensed since
- 1994
- Expires
- 2026-11-30
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2026-12-31
- Verified
- August 17, 2026
- Licensed since
- 2001
- Expires
- 2027-01-31
- Verified
- August 17, 2026
- Licensed since
- 2002
- Expires
- 2028-02-29
- Verified
- August 17, 2026
- Licensed since
- 2002
- Expires
- 2028-07-31
- Verified
- August 17, 2026
- Licensed since
- 2003
- Expires
- 2027-07-31
- Verified
- August 17, 2026
- Licensed since
- 2004
- Expires
- 2026-10-31
- Verified
- August 17, 2026
- Licensed since
- 2005
- Expires
- 2027-05-31
Compare the top 6 at a glance
| Company | License | Class | Licensed since |
|---|---|---|---|
| Big Bear Heating And Cooling Inc. | #105261 | R-39R · Residential | 1994 |
| Flagstaff Heating & Cooling Inc. | #141416 | CR-39 · Dual | 1998 |
| Backus Heating And Air LLC | #162020 | CR-39 · Dual | 2001 |
| Mountain High Plumbing Inc. | #172028 | CR-39 · Dual | 2002 |
| Campbell's A C LLC | #177188 | CR-39 · Dual | 2002 |
| Az Total Comfort Services | #187659 | CR-39 · Dual | 2003 |
Flagstaff HVAC licensure at a glance
29 active ROC HVAC licenses are registered in Flagstaff. Every Arizona license carries a scope, and it is a legal boundary rather than a size tier: 24 of Flagstaff's licenses are dual scope (residential and commercial work) and 5 residential-only, while commercial-only licenses never appear on these pages at all - they do not permit residential work in Arizona. Tenure is what these pages rank on, and Arizona's issue dates are real and filled on every record: the median Flagstaff license has been held 13 years, the longest-standing since 1994, and 3 (10.3%) have been held 25 or more years. The posting list carries no insurance, no bond and no phone for any licensee - Arizona requires a license bond by statute but does not publish it, so we never show one, never claim one, and never rank on one. ROC's contractor search cannot link straight to a record, so every listing above shows its number for you to paste into ROC's contractor search. How we verify.
HVAC Contractors in Flagstaff: common questions
How many licensed HVAC contractors are there in Flagstaff?
29 active ROC HVAC licenses are registered in Flagstaff. 28 Flagstaff-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses ROC posts as Active, carrying a residential or dual scope and unexpired at our data date, are listed.
What does the scope on an Arizona HVAC license mean?
Arizona's scope is a legal boundary, not a size tier: a commercial-only license does not permit residential work, so commercial-only contractors never appear on these pages at all. 24 of Flagstaff's 29 licenses are dual scope (residential and commercial) and 5 are residential-only.
How do I check an HVAC contractor's license in Arizona?
Every listing above shows its ROC license number. ROC's contractor search cannot link straight to a record, so open it and type the number in: it shows the class, scope, status and expiration. The median Flagstaff license has been held 13 years, and the longest-standing dates to 1994.