Diamond HVAC CORP, C-20 HVAC Contractor in Pleasanton, CA
Diamond HVAC CORP operating as a corporation holds an active California contractor license (CSLB #1106621), valid through Jun 30, 2027. First issued in 2023, the license has been on the CSLB roster for 3 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active. The business is based in Pleasanton, in Alameda County, California.
- License Number
- 1106621
- Issued
- Jun 27, 2023
- Status
- CLEAR
- Expires
- Jun 30, 2027
- Entity
- Corporation
- Surety
- Merchants Bonding Company (mutual)
- Bond Number
- 100125037
- Effective
- Jun 19, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Clear Spring Property and Casualty Company
- Policy Number
- CWC02202202
- Effective
- Jun 19, 2025
- Expires
- Jun 19, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Diamond HVAC CORP licensed in California?
Yes. Diamond HVAC CORP holds California Contractors State License Board license number 1106621, which is active and in good standing. The license was first issued on June 27, 2023. It is valid through June 30, 2027.
What does Diamond HVAC CORP specialize in?
Diamond HVAC CORP is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is Diamond HVAC CORP headquartered?
Diamond HVAC CORP is headquartered at 5777 Gibraltar Dr 206, Pleasanton, CA 94588, in Alameda County, California.
Does Diamond HVAC CORP have an active surety bond on file with CSLB?
Yes. Diamond HVAC CORP has an active California contractor surety bond filed with Merchants Bonding Company (mutual).
Does Diamond HVAC CORP carry workers' compensation coverage?
Diamond HVAC CORP has a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active.
How do I verify Diamond HVAC CORP's contractor license?
You can verify Diamond HVAC CORP's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1106621.
- Bond activeJun 19, 2023
- License issuedJun 27, 2023
- WC coverage startsJun 19, 2025
- WC expiredJun 19, 2026
- License expiresJun 30, 2027
- D W Nicholson Corporation#68847Hayward·A General Engineering Contractor
- Pierce J R Plumbing Company#188225San Leandro·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
- Wes-CO Industries#246673San Leandro·A General Engineering Contractor
- Jsb Mechanical#251305Newark·C-20 HVAC Contractor
- Miller's Air Conditioning & Heating#253756Livermore·C-10 Electrical Contractor
- Berkeley Plumbing & Heating Company INC#293715Berkeley·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
- Van-Mulder Sheet Metal INC#279981Hayward·B General Building Contractor
- J E Moore Air Conditioning INC#283973Pleasanton·C-20 HVAC Contractor
Working a California job with Diamond HVAC CORP, 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 Diamond HVAC CORP? Claim or correct this profile