contracting businessc20 hvacLicensed since 2009
Black Diamond Heating And Air Conditioning INC
2063 Main St, # 425, Oakley, CA 94561 · map
What the public record says
- Licensed since 2009 (17 years)
- $25,000 contractor bond
- Carries workers' compensation (has employees)
- Classifications: C4, C20, C38, C43
- Owned by a corporation
Licenses and permits
- C4 classificationCA Contractors State License Board · #931418 · since 2009 · suspended
- C-20 Warm-Air Heating, Ventilating and Air-ConditioningCA Contractors State License Board · #931418 · since 2009 · suspended
- C38 classificationCA Contractors State License Board · #931418 · since 2009 · suspended
- C43 classificationCA Contractors State License Board · #931418 · since 2009 · suspended
Estimated value
Fair$996,000
Estimated range: $576K – $1.4M
Based on the license record looking like a company-sized operation (workers' comp, several classifications or a larger bond); businesses like that typically bill around $2,200,000 a year. At a typical 16% owner margin and 2.83x multiple for contractors.
Estimate, not an appraisal. How we value
Tighten this with your numbersNearby hvac, plumbing & electrical
- Next Generation Plumbing LLCOakley · since 2018 · $376,000 ($217K–$534K)
- B J N Services INCOakley · since 1984 · $376,000 ($217K–$534K)
- Brentwood Electric COOakley · since 2020 · $399,000 ($231K–$567K)
- New Leaf Home Services LLCOakley · since 2026 · $408,000 ($236K–$579K)
- Em Lighting And Electrical INCOakley · since 2026 · $111,000 ($63K–$159K)
- C Lectric Company LLCOakley · since 2024 · $399,000 ($231K–$567K)
Record built from 1 public file. Updated 11/13/2026. Own this business? Claim the page or ask for a change.
Estimated value
Fair$996,000
Estimated range: $576K – $1.4M
Based on the license record looking like a company-sized operation (workers' comp, several classifications or a larger bond); businesses like that typically bill around $2,200,000 a year. At a typical 16% owner margin and 2.83x multiple for contractors.
Estimate, not an appraisal. How we value
Tighten this with your numbers