M1 Mechanical Heating & Air-conditioning

Before hiring any contractor in California, verifying their license status is an essential step to protect your investment. An active license confirms the contractor has met California's requirements for training, insurance, and bonding.

What to check before hiring

• License status -- Confirm the license is currently active, not expired or revoked.
• License type -- Ensure the license covers the type of work you need performed.
• Expiration date -- Verify the license will remain valid through your project timeline.
• Insurance and bonding -- Ask for proof of liability insurance and any required surety bond.

Use the List a Service verification tool to instantly check any contractor's license status across California and all 50 states.