Best Licensed HVAC Contractors in Norwalk, CA
25 HVAC contractors registered in Norwalk hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.
- 2,674 active C-20 heating and air conditioning licenses in Los Angeles County; 25 registered in Norwalk
- California requires workers' compensation cover for C-20 licensees: 23 of Norwalk's 25 licenses (92.0%) carry a current policy with CSLB
- Median time licensed in Norwalk: 14 years
- Longest Norwalk licensure: since 1971
- 206 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1971
- Expires
- 2027-03-31
- Phone
- (562) 868-7777
- Verified
- August 17, 2026
- Licensed since
- 1979
- Expires
- 2027-01-31
- Phone
- (562) 926-1357
- Verified
- August 17, 2026
- Licensed since
- 1997
- Expires
- 2027-02-28
- Phone
- (562) 864-8662
- Verified
- August 17, 2026
- Licensed since
- 1998
- Expires
- 2027-07-31
- Phone
- (562) 755-7266
- Verified
- August 17, 2026
- Licensed since
- 2000
- Expires
- 2028-03-31
- Phone
- (562) 239-5458
- Verified
- August 17, 2026
- Licensed since
- 2001
- Expires
- 2027-04-30
- Phone
- (562) 404-1722
- Verified
- August 17, 2026
- Licensed since
- 2004
- Expires
- 2028-05-31
- Phone
- (562) 774-6314
- Verified
- August 17, 2026
- Licensed since
- 2004
- Expires
- 2028-06-30
- Phone
- (562) 688-9117
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Norwalk-la Mirada Plumbing & Heating Co Inc. | #271767 | On file | 1971 |
| Clint's Refrigeration Service | #368697 | On file | 1979 |
| Certified General Contractors | #732511 | On file | 1997 |
| R K M Development | #746101 | On file | 1998 |
| J J Heating And Cooling | #776237 | Expired on file | 2000 |
| Cal - West Mechanical | #793896 | Exempt or none on file | 2001 |
Los Angeles County HVAC licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 2,674 active C-20 heating and air conditioning licenses in Los Angeles County, 25 of them registered in Norwalk. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Norwalk license has been held 14 years, and the longest-standing one dates to 1971. California law requires workers' compensation cover for C-20 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 23 of Norwalk's 25 licenses (92.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 2,672 of the county's 2,674 licenses carry the same $25,000 bond California sets by statute. 206 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
HVAC Contractors in Norwalk: common questions
How many licensed HVAC contractors are there in Norwalk?
25 active C-20 heating and air conditioning licenses are registered in Norwalk, out of 2,674 across Los Angeles County. 25 Norwalk-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license HVAC contractors?
Yes. California licenses contractors by classification, and C-20 is the CSLB classification that authorises this work. 25 active C-20 heating and air conditioning licenses are registered in Norwalk and 2,674 across Los Angeles County, the longest-standing issued in 1971. Only CLEAR, unexpired licenses appear here.
How do I check an HVAC contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-20 licensees and 23 of Norwalk's 25 currently carry. 206 Los Angeles County licenses expire within 90 days.