Cal Steam Company, C-4 Boiler, Hot Water Heating and Steam Fitting Contractor in Diamond Bar, CA
Cal Steam Company operating as a corporation holds an active California contractor license (CSLB #674646), valid through Apr 30, 2027. First issued in 1993, the license has been on the CSLB roster for 33 years. It carries 3 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-20 HVAC Contractor, and C-36 Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Sentry Casualty Company. The business is based in Diamond Bar, in Los Angeles County, California.
- License Number
- 674646
- Issued
- Jul 22, 1993
- Status
- CLEAR
- Expires
- Apr 30, 2027
- Entity
- Corporation
- Surety
- Western Surety Company
- Bond Number
- 71886701
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Sentry Casualty Company
- Policy Number
- 2557672004
- Effective
- Aug 20, 2025
- Expires
- Aug 20, 2026
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 Cal Steam Company licensed in California?
Yes. Cal Steam Company holds California Contractors State License Board license number 674646, which is active and in good standing. The license was first issued on July 22, 1993. It is valid through April 30, 2027.
What does Cal Steam Company specialize in?
Cal Steam Company is licensed for 3 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor, C-20 HVAC Contractor, and C-36 Plumbing Contractor.
Where is Cal Steam Company headquartered?
Cal Steam Company is headquartered at 1142 S Diamond Bl #169, Diamond Bar, CA 91765, in Los Angeles County, California.
Does Cal Steam Company have an active surety bond on file with CSLB?
Yes. Cal Steam Company has an active California contractor surety bond filed with Western Surety Company.
Does Cal Steam Company carry workers' compensation coverage?
Yes. Cal Steam Company carries active workers' compensation coverage through Sentry Casualty Company.
How do I verify Cal Steam Company's contractor license?
You can verify Cal Steam Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=674646.
- License issuedJul 22, 1993
- Bond activeJan 1, 2023
- WC coverage startsAug 20, 2025
- WC expiresAug 20, 2026
- License expiresApr 30, 2027
- Brandel Don Plumbing INC#176778Paramount·A General Engineering Contractor
- Graycon INC#255068City of Industry·B General Building Contractor
- Acco Engineered Systems#120696Pasadena·A General Engineering Contractor
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
- General Installation Company#151839Gardena·B General Building Contractor
- Stewart R O Plumbing & Heating CO#186403Los Angeles·C-20 HVAC Contractor
- Hamm L M INC#171598San Gabriel·B General Building Contractor
- Smith Roy E Plumbing CO INC#179873Los Angeles·C-16 Fire Protection Contractor
Working a California job with Cal Steam Company, 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 Cal Steam Company? Claim or correct this profile