Dt Mechanical, C-20 HVAC Contractor in San Leandro, CA
Dt Mechanical operating as a corporation holds an active California contractor license (CSLB #954729), valid through Apr 30, 2028. First issued in 2010, the license has been on the CSLB roster for 16 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and active workers' compensation coverage from Technology Insurance Company INC. The business is based in San Leandro, in Alameda County, California.
- License Number
- 954729
- Issued
- Nov 17, 2010
- Status
- CLEAR
- Expires
- Apr 30, 2028
- Entity
- Corporation
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800211743
- Effective
- Nov 24, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Technology Insurance Company INC
- Policy Number
- TSP4779927
- Effective
- Mar 6, 2026
- Expires
- Mar 6, 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 Dt Mechanical licensed in California?
Yes. Dt Mechanical holds California Contractors State License Board license number 954729, which is active and in good standing. The license was first issued on November 17, 2010. It is valid through April 30, 2028.
What does Dt Mechanical specialize in?
Dt Mechanical is licensed for one CSLB classification: C-20 HVAC Contractor.
Where is Dt Mechanical headquartered?
Dt Mechanical is headquartered at 536 Lewelling Blvd, San Leandro, CA 94579, in Alameda County, California.
Does Dt Mechanical have an active surety bond on file with CSLB?
Yes. Dt Mechanical has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Dt Mechanical carry workers' compensation coverage?
Yes. Dt Mechanical carries active workers' compensation coverage through Technology Insurance Company INC.
How do I verify Dt Mechanical's contractor license?
You can verify Dt Mechanical's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=954729.
- License issuedNov 17, 2010
- Bond activeNov 24, 2025
- WC coverage startsMar 6, 2026
- WC expiresMar 6, 2027
- License expiresApr 30, 2028
- Clark Harry Plumbing and Heating INC#792463Oakland·C-20 HVAC Contractor
- Levering Chris Heating & Air Conditioning#797190San Leandro·C-20 HVAC Contractor
- Awesome Heating and Air Conditioning INC#813172Livermore·C-20 HVAC Contractor
- Key Mechanical Company#813609Livermore·C-20 HVAC Contractor
- Rick's Heating and Air Conditioning#700486Pleasanton·C-20 HVAC Contractor
- Apple Heating & Air INC#698079San Leandro·C-20 HVAC Contractor
- Eagle Air#668002Livermore·C-20 HVAC Contractor
- Flanders Heat and Air Systems INC#677502Pleasanton·B General Building Contractor
Working a California job with Dt Mechanical, 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 Dt Mechanical? Claim or correct this profile