contracting businessc20 hvacLicensed since 1986
Jb Mechanical INC
Jb Mechanical INC DBA Mas Service
5083 Lone Tree Way, Antioch, CA 94531 · map
What the public record says
- Licensed since 1986 (40 years)
- $25,000 contractor bond
- Carries workers' compensation (has employees)
- Classifications: C20, C38
- Owned by a corporation
Licenses and permits
- C-20 Warm-Air Heating, Ventilating and Air-ConditioningCA Contractors State License Board · #498289 · since 1986
- C38 classificationCA Contractors State License Board · #498289 · since 1986
Estimated value
Fair$236K – $579K
Based on the license record looking like a licensed shop carrying workers' comp (a small crew); businesses like that typically bill around $900,000 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
- Kz Heating And Air ConditioningAntioch · since 2024 · $236K–$579K
- Copper Mountain ElectricAntioch · since 2023 · $63K–$159K
- Coastwide Electric INCAntioch · since 2015 · $231K–$567K
- Wallace ElectricAntioch · since 2007 · $231K–$567K
- W S G Plumbing SolutionsAntioch · since 2026 · $59K–$150K
- Phillips Mechanical INCAntioch · since 2019 · $236K–$579K
Record built from 1 public file. Updated 11/7/2026. Own this business? Claim the page or ask for a change.
Estimated value
Fair$236K – $579K
Based on the license record looking like a licensed shop carrying workers' comp (a small crew); businesses like that typically bill around $900,000 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