What Jobs Can You Bid with a C-47 License?
The C-47 license is for individuals or companies that specialize in manufactured housing and modular homes.
There are a variety of jobs you can bid on if you have this license, including:
- Mobile home services
- Construction, design, and installation
- Mobile home repair & remodel
- Manufactured home transport
- Insulated Roofs
- Leveling, setup, foundation, and skirting
- Carpeting
- Mobile home sales
- Cleaning and re-sealing metal roof repair
- Re-seal flashing
- Checking sewage lines
- Restoration of manufactured homes
- Window/Doors
- Site Preparation
- Roof coatings, single roofs, and repairs
- Decks & steps composite
- Wood railings
- Painting Interior & Exterior
- Stain Decks
- Awnings Carport & Patio
- Offset Posts
- Privacy Shades, panels, and custom sheds
- Installation of awning supports
Mobile home Contractors and the CSLB
The C-47 license is one of 74 classifications available in California. Contractors in the state of California are governed by the CSLB(Contractors State License Board)
There are 4 major classification categories:
Common Pairings for the C-47 License
Contractors in California can hold multiple classifications.
The most common pairings for the C-47 license are typically:

C-47 contractor requirements
To become licensed with the CSLB you must meet the following basic requirements:
- 18 Years of Age
- 4 Years of Journeyman Level Experience
- Social Security or ITIN #
- Not Currently on Probation or Parole
- Signature from a licensed contractor, fellow employee, supervisor, or business associate
What construction concepts do I need to know for the exam?
You will definitely want to be prepared for any curveballs that could come up on the California C-47 license exam.
You may be presented with questions related to residential remodeling which could be unfamiliar.
Take the time to review every possible question and concept.
Below is a breakdown of what you need to know:
Planning and Estimating (20%)
- Project scope planning
- Lot evaluation
- Cost and material calculation
2. Site Preparation (17%)
- Lot development
- Preparing for transport
3. Manufactured Home Installation (26%)
- Support and foundation systems
- Maneuvering and joining sections
- Connecting and sealing procedures
4. Accessory Installation (9%)
- Installing home accessories
- Building accessory structures
5. Repairs (9%)
- Troubleshooting and repairing
6. Safety (19%)
- Employee safety
- Job site and equipment safety
- Job site hazards
What's the C-47 license exam process like?
The exam will be:
- 115 Questions Law & Business
- 115 Questions General manufactured housing
- Multiple Choice
- Closed Book
- 3 Hours to Complete each section
- Taken via Computer at a CSLB Testing Facility
- Exam Centers in: Berkeley, Fresno, Norwalk, Oxnard, Sacramento, San Bernardino, San Diego, and San Jose
Math Skills
There will be math on your CSLB law & business and trade exam.
On the law side, questions will be presented to you as if you are a General Building Contractor with multiple projects running simultaneously with several employees.
You can expect math questions related to:
- Arithmetic
- Cost Estimation
- Percentages and Decimals
The math you can expect on the C-47 license exam may vary. Be prepared for questions that may include:
- Basic Geometry
- Units of measurement
Blueprint Reading Skills
Blueprint reading is a fundamental skill for all contractors.
Knowing how to interpret plans and is a key part of the job if you are working within a construction crew.
Interpreting building plans is critical.
Some aspects of plan reading may also be your examination.
For a deeper look at blueprint reading concepts, you will want to check out this free blueprint reading guide.
CSLB law & business exam
Our complete course gives you everything you need to pass the C-47 California mobile home contractor license exam.
In addition to getting brushed up on the construction trade, those looking to get the C-47 license will be equipped with a crash course on how to run a profitable business.
You will learn:
- Company organization
- How to bid effectively
- Understanding cost control
- Various contract types
- Cash management
- Estimation fundamentals
- CAL/OSHA
- Business Structures
- Worker’s Compensation and Taxes
- Insurance Types in Construction
- Labor Laws and Employee Rights
- Hiring and Firing Practices
- Contractor Bonds
- Mechanics Liens
- State Laws and Statutes
- Project Management 101
- Prevailing Wages and Public Works
- And Much More!