Mac Refrigeration and Air Conditioning CO, C-20 HVAC Contractor in Diamond Bar, CA
Mac Refrigeration and Air Conditioning CO operating as a sole owner holds an active California contractor license (CSLB #580557), valid through Nov 30, 2027. First issued in 1989, the license has been on the CSLB roster for 37 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from National Fire Insurance Company of Hartford. The business is based in Diamond Bar, in Los Angeles County, California.
- License Number
- 580557
- Issued
- Nov 6, 1989
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- SC6029640
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- National Fire Insurance Company of Hartford
- Policy Number
- WC835787339
- Effective
- Feb 28, 2026
- Expires
- Feb 28, 2027
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Mac Refrigeration and Air Conditioning CO licensed in California?
Yes. Mac Refrigeration and Air Conditioning CO holds California Contractors State License Board license number 580557, which is active and in good standing. The license was first issued on November 6, 1989. It is valid through November 30, 2027.
What does Mac Refrigeration and Air Conditioning CO specialize in?
Mac Refrigeration and Air Conditioning CO is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is Mac Refrigeration and Air Conditioning CO headquartered?
Mac Refrigeration and Air Conditioning CO is headquartered at 23727 Silver Spray Drive, Diamond Bar, CA 917651753, in Los Angeles County, California.
Does Mac Refrigeration and Air Conditioning CO have an active surety bond on file with CSLB?
Yes. Mac Refrigeration and Air Conditioning CO has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Mac Refrigeration and Air Conditioning CO carry workers' compensation coverage?
Yes. Mac Refrigeration and Air Conditioning CO carries active workers' compensation coverage through National Fire Insurance Company of Hartford.
How do I verify Mac Refrigeration and Air Conditioning CO's contractor license?
You can verify Mac Refrigeration and Air Conditioning CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=580557.
- License issuedNov 6, 1989
- Bond activeJan 1, 2023
- WC coverage startsFeb 28, 2026
- WC expiresFeb 28, 2027
- License expiresNov 30, 2027
- Acco Engineered Systems#120696Pasadena·A General Engineering Contractor
- E L Payne Company#120228West Hollywood·C-20 HVAC Contractor
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
- G E M Plumbing INC#111308Sierra Madre·C-20 HVAC Contractor
- Hoskins Plumbing#91761Whittier·C-20 HVAC Contractor
- Sheflo Plumbing CO#91479Agoura Hills·C-20 HVAC Contractor
- Stewart R O Plumbing & Heating CO#186403Los Angeles·C-20 HVAC Contractor
- Violin Heating & Air Conditioning INC#186219Granada Hills·C-20 HVAC Contractor
Working a California job with Mac Refrigeration and Air Conditioning CO, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Mac Refrigeration and Air Conditioning CO? Claim or correct this profile