Hiring an unlicensed or uninsured concrete contractor is one of the fastest ways to end up with a botched foundation, cracked driveway, or worse—legal liability for injuries on your property. Before you sign anything or hand over a deposit, you need to verify their credentials. Here's exactly what to check and why it matters.
Why Licensing and Insurance Aren't Optional
A licensed concrete contractor has passed exams, met experience requirements, and maintains accountability through their state or local licensing board. Insurance protects you from paying out of pocket if a worker gets injured on your job or their work damages your property. Together, they're your only real safety net.
Unlicensed contractors may seem cheaper upfront, but when a wall cracks or a slab breaks apart prematurely, you have almost no recourse. Courts rarely award damages against uninsured workers, and licensing boards can't investigate complaints about unlicensed operators.
How to Verify a Contractor's License
Start by asking for their license number directly—any legitimate contractor will provide it without hesitation. Then visit your state's licensing board website. Most states maintain searchable databases where you can confirm:
- Current license status (active, suspended, or expired)
- License class and scope (residential, commercial, or both)
- Whether any complaints or disciplinary actions are on file
- License issue and expiration dates
For example, in California, you'd search the Contractors State License Board (CSLB) database. In Texas, check the Texas Department of Licensing and Regulation. If your state doesn't regulate concrete contractors specifically, look for General Building Contractor licenses or verify they're registered with your city or county building department.
Don't skip this step. A contractor might claim they're "about to renew" or "between licenses"—that's a red flag. Active licenses cost money, and professionals stay current.
What Insurance Coverage You Actually Need
A concrete contractor should carry at least two types of insurance:
General Liability Insurance — covers property damage (like if they accidentally break your fence) and third-party injury claims. Minimum coverage should be $1 million per occurrence. Ask to see the certificate of insurance, and verify the policy is active and current.
Workers' Compensation Insurance — required in almost all states if they have employees. This covers medical bills and lost wages if a worker is injured. Sole proprietors sometimes claim they're exempt, but verify this is legal in your state before accepting it as an excuse.
Some concrete contractors also carry equipment coverage or bonding (which guarantees work completion), though these aren't always mandatory.
Requesting Proof of Insurance
Ask for a Certificate of Insurance (COI) listing you as an "additional insured" or "certificate holder." This is standard and takes contractors five minutes to request from their insurance agent. The certificate should show:
- Policy numbers
- Coverage limits
- Policy expiration date
- The name of their insurance company
Call the insurance company directly if you want to verify—don't rely on documents alone. Request that the contractor add your property address and project value to the certificate so it's project-specific.
Red Flags to Watch For
- License number that doesn't check out in state databases
- Insurance certificates with expiration dates within 30 days
- Refusing to provide license or insurance documents
- Significantly lower bids than competitors (often indicates they're cutting corners or working uninsured)
- Offers to do work "under the table" for a discount
- Only accepts cash, no paper trail
Getting Multiple Contractors to Compare
When you're evaluating concrete contractors, use a service like Mercoly where you can compare trusted providers' credentials, reviews, and quotes side by side—cutting down on the legwork of verifying multiple contractors individually.
Sample Verification Timeline
From initial contact to final verification typically takes 2–3 business days:
- Request license number and COI (same day)
- Verify license online (next day)
- Verify insurance directly with carrier (1–2 days)
- Review any complaints or litigation history (1 day)
Don't let a contractor pressure you into signing contracts before verification is complete.
Frequently Asked Questions
Q: What if a concrete contractor is licensed but has complaints filed against them? A: Review the specific complaints through your state licensing board. Minor issues resolved years ago are less concerning than recent patterns of non-payment disputes or poor workmanship. Ask the contractor directly about them and listen carefully to their explanation.
Q: Can I check a contractor's insurance online? A: Not usually—you'll need to contact their insurance agent or call the insurance company listed on the certificate. Most carriers have phone numbers on the COI, and they can confirm active coverage within minutes.
Q: Is bonding the same as insurance? A: No. Bonding guarantees the contractor will complete the job or refund your money; insurance covers accidents and damage. Bonding is optional for most concrete work but valuable for larger projects.
Start your search for a qualified, insured concrete contractor today—your foundation (literally) depends on it.