Best Licensed HVAC Contractors in Annandale, VA
31 HVAC contractors registered in Annandale hold current DPOR licenses, verified against official records as of August 19, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 31 current DPOR HVAC contractor licenses registered in Annandale
- Project-size tiers in Annandale: 23 Class A, 5 Class B, 3 Class C
- Median time licensed in Annandale: 15 years
- 6 of Annandale's licenses (19.4%) have been held 25 or more years
- 3 licenses come from the state's legacy series, licensed since before 1992
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- Verified
- August 19, 2026
- Licensed since
- 1972
- Expires
- 2027-08-31
- Verified
- August 19, 2026
- Licensed since
- 1983
- Expires
- 2028-03-31
- Verified
- August 19, 2026
- Licensed since
- before 1992
- Expires
- 2026-09-30
- Verified
- August 19, 2026
- Licensed since
- 1996
- Expires
- 2028-06-30
- Verified
- August 19, 2026
- Licensed since
- 2000
- Expires
- 2028-04-30
- Verified
- August 19, 2026
- Licensed since
- 2000
- Expires
- 2026-12-31
- Verified
- August 19, 2026
- Licensed since
- 2003
- Expires
- 2027-09-30
- Verified
- August 19, 2026
- Licensed since
- 2005
- Expires
- 2027-02-28
Compare the top 6 at a glance
| Company | License | Class | Licensed since |
|---|---|---|---|
| Quality Electric Service Inc. | #01-011956 | Class A | 1972 |
| A-aannandale Plumbing Heating & Cooling Inc. | #01-022963 | Class A | 1983 |
| Northern Virginia Plumbing Corporation | #01-008177 | Class A | before 1992 |
| Martin Colin Kim | #05-034483 | Class A | 1996 |
| Alta Vista Heating & Air Conditioning Inc. | #05-055538 | Class B | 2000 |
| Tuan Minh Nguyen | #05-059112 | Class B | 2000 |
Annandale HVAC licensure at a glance
31 current DPOR HVAC contractor licenses are registered in Annandale. The letters on Virginia licences are the state's project-size tiers - 23 Class A, 5 Class B and 3 Class C here - shown as published and never ranked on: the dollar thresholds behind them are statute, not data in the extract, so we do not print them. Tenure is what these pages rank on, and Virginia's dates support it: the median Annandale license has been held 15 years, and 6 (19.4%) have been held 25 or more years. 3 Annandale licenses come from the state's legacy series, closed to new entrants in February 1992: membership alone proves licensure since before 1992, so those records rank at that bound - which can only understate their tenure - and never at a year the state did not publish. DPOR's extract carries no insurance, no bond and no phone for any licensee, so Virginia listings show none of the three - a gap in the state's file, not a finding about any contractor. DPOR cannot link straight to a record, so every listing above shows its number for you to paste into DPOR's license lookup. How we verify.
HVAC Contractors in Annandale: common questions
How many licensed HVAC contractors are there in Annandale?
31 current DPOR HVAC contractor licenses are registered in Annandale. 31 Annandale-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. DPOR publishes only current licenses, and we additionally require an expiration date still ahead of our data date.
What do Virginia's contractor license classes mean?
Class A, B and C are Virginia's project-size tiers - how large a project a firm may take on. Annandale's 31 licenses split 23 Class A, 5 Class B and 3 Class C. We show each listing's class as the state publishes it and never rank on it - the dollar thresholds are statute, not data in the extract.
How do I check an HVAC contractor's license in Virginia?
Every listing above shows its DPOR license number. DPOR cannot link straight to a record, so open its license lookup and type the number in. The median Annandale license has been held 15 years, and 6 (19.4%) have been held 25 or more years, including 3 licenses licensed since before 1992.