Calderon Technologies
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About the B-2 — Residential Remodeling License
The B-2 Residential Remodeling license is a specialized California contractor license for professionals who focus on altering, repairing, and renovating existing residential structures. Unlike the broader Class B license, the B-2 is specifically tailored for home improvement and remodeling work. This makes B-2 contractors experts in transforming existing homes rather than building from scratch. They handle projects ranging from kitchen and bathroom renovations to room additions and whole-home remodels. Homeowners should look for B-2 contractors with a strong portfolio of completed projects similar to theirs. Always verify the license status, check for any complaints filed with the CSLB, and get a detailed scope of work in writing. California's Home Improvement Contract requirements apply to most B-2 projects, providing additional consumer protections.
About the C-7 — Low Voltage Systems License
The C-7 Low Voltage Systems license covers the installation, maintenance, and repair of systems that operate on low electrical voltage. This includes security alarms, fire detection systems, data and communication cabling, home automation, intercoms, CCTV surveillance, and structured wiring. As smart home technology and security needs continue to grow, C-7 contractors are increasingly in demand. Unlike C-10 electricians who work with standard electrical power, C-7 specialists focus on signal and data systems. This distinction is important because improper installation of low voltage systems can affect performance, void warranties, or create safety issues. When hiring a C-7 contractor, ask about their experience with your specific system type, whether they offer monitoring services, and if they stay current with rapidly evolving technology standards.
💡 Tips for Hiring a Residential Remodeling Contractor
- Ask to see a portfolio of similar completed remodeling projects
- Get a detailed scope of work that specifies materials and finishes
- Discuss timeline and how the contractor handles unexpected issues
- Verify they comply with California Home Improvement Contract requirements
- Ask if the remodel will require permits and who handles them
✅ Verify This License
Always verify contractor licensing directly with the Contractors State License Board (CSLB) before hiring. You can look up license #1122065 to confirm it is active and check for any complaints or disciplinary actions.
Check on CSLB.ca.gov →🏢 Are you Calderon Technologies?
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Claim This Page →Frequently Asked Questions
What is the difference between a B and B-2 license?
A Class B license covers all general building construction including new builds. A B-2 license is limited to residential remodeling — altering, repairing, and renovating existing homes. B-2 contractors cannot build new structures from the ground up.
Do I need a permit for a home remodel in California?
Most significant remodeling projects require permits, especially those involving structural changes, electrical, plumbing, or changes to the building footprint. Your B-2 licensed contractor should know which permits are needed and help obtain them.
What is the difference between C-7 and C-10 licenses?
A C-7 license covers low voltage systems like security, data cabling, and home automation. A C-10 license covers standard electrical work like wiring, panels, and outlets. If your project involves both, you may need contractors with each license.
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