Single Source Construction & Maintenance Inc
Single Source Construction & Maintenance Inc is a licensed contractor in Mira Loma, CA whose license is currently suspended. Operating under a California contractor license established in 2012. They hold 4 license classifications including A General Engineering Contractor, B General Building Contractor, and 2 others. This license is currently suspended due to a workers' compensation insurance issue. Verify coverage status on the official CSLB website before hiring. This license has a current suspension on record. Check the official CSLB website for full details before hiring this contractor.
License Information
- License Number
- 972039
- Status
- Suspended Suspended - Workers' Compensation
- Classification(s)
- A: General Engineering Contractor, B: General Building Contractor, C-36: Plumbing Contractor, D28: Doors, Gates and Activating Devices
- Tenure
- Licensed since 2012 (13 years)
- Issue Date
- April 12, 2012
- Expiration Date
- April 30, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – WESTERN SURETY COMPANY
- Workers’ Compensation
- License does not have current W/C – STATE COMPENSATION INSURANCE FUND
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 5450 PTOLEMY WAY
- City
- Mira Loma, CA
- ZIP Code
- 91752
- Phone
- (909) 851-9336
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About These License Types
A: General Engineering Contractor
Authorizes construction of fixed works requiring specialized engineering knowledge and skill, including irrigation, drainage, water power, water supply, flood control, inland waterways, harbors, docks, shipyards, dams, hydroelectric projects, levees, railroads, highways, tunnels, airports, sewers, bridges, pipelines, parks, refineries, and power plants.
Not authorized: Does not authorize work under a Class B General Building Contractor license or any specialty (C) classification unless incidental to the engineering project.
B: General Building Contractor
Authorizes construction of structures including residential, commercial, and industrial buildings requiring at least two unrelated building trades or crafts. May take prime contracts or subcontracts for framing or carpentry. May subcontract all specialty work but must hold the appropriate C license to self-perform specialty trade work.
Not authorized: Cannot self-perform specialty trade work (electrical, plumbing, HVAC, etc.) without holding the corresponding C license. Cannot contract for C-16 Fire Protection or C-57 Well Drilling without the appropriate license or subcontractor.
C-36: Plumbing Contractor
Provides means for a supply of safe water and proper disposal of fluid waste, including piping, storage tanks, venting, gas appliances and connections, water and gas piping, water heating equipment including solar, and health and safety devices such as backflow preventers and gas earthquake valves.
Not authorized: Does not include forced warm-air units (see C-20).
D28: Doors, Gates and Activating Devices
Installs, maintains, and repairs doors, gates, and their activating devices including automatic openers.
Licensing Resources
Workers' comp requirements for California contractors
How to verify a contractor license
Deposit and payment rules for California contracts
Home improvement contract requirements
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License data sourced from the California Contractors State License Board. Last data update: April 05, 2026.