AC Heat Diamond Bar, C-20 HVAC Contractor in Diamond Bar, CA
AC Heat Diamond Bar operating as a sole owner holds an active California contractor license (CSLB #1145762), valid through Oct 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Technology Insurance Company INC. The business is based in Diamond Bar, in Los Angeles County, California.
- License Number
- 1145762
- Issued
- Oct 30, 2025
- Status
- CLEAR
- Expires
- Oct 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67660423
- Effective
- Oct 20, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Technology Insurance Company INC
- Policy Number
- TWC4700119
- Effective
- Oct 21, 2025
- Expires
- Oct 21, 2026
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is AC Heat Diamond Bar licensed in California?
Yes. AC Heat Diamond Bar holds California Contractors State License Board license number 1145762, which is active and in good standing. The license was first issued on October 30, 2025. It is valid through October 31, 2027.
What does AC Heat Diamond Bar specialize in?
AC Heat Diamond Bar is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is AC Heat Diamond Bar headquartered?
AC Heat Diamond Bar is headquartered at 2953 Crooked Creek Dr, Diamond Bar, CA 91765, in Los Angeles County, California.
Does AC Heat Diamond Bar have an active surety bond on file with CSLB?
Yes. AC Heat Diamond Bar has an active California contractor surety bond filed with Western Surety Company.
Does AC Heat Diamond Bar carry workers' compensation coverage?
Yes. AC Heat Diamond Bar carries active workers' compensation coverage through Technology Insurance Company INC.
How do I verify AC Heat Diamond Bar's contractor license?
You can verify AC Heat Diamond Bar's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1145762.
- Bond activeOct 20, 2025
- WC coverage startsOct 21, 2025
- License issuedOct 30, 2025
- WC expiresOct 21, 2026
- License expiresOct 31, 2027
- Hoskins Plumbing#91761Whittier·C-20 HVAC Contractor
- Sheflo Plumbing CO#91479Agoura Hills·C-20 HVAC Contractor
- 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
- Red Lilly Plumbing INC#218270Los Angeles·C-20 HVAC Contractor
- Ice Machine Sales and Service CO#215429City of Commerce·C-20 HVAC Contractor
Working a California job with AC Heat Diamond Bar, 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 AC Heat Diamond Bar? Claim or correct this profile