Hiring an unlicensed or uninsured concrete contractor can turn a simple driveway pour into a financial nightmare. A worker injury, structural failure, or abandoned job leaves you liable and out of pocket. Here's how to verify credentials before you sign a contract.
Check Licensing Status First
Your state's construction licensing board is your primary resource. Most states require concrete contractors to hold a general contractor license or a specialized concrete license, depending on project scope. Go to your state's licensing board website (usually under the Secretary of State or Department of Consumer Affairs) and search the contractor's name and license number.
What you're looking for: An active license with no suspensions, revocations, or disciplinary history. Some states display complaint records publicly. If a contractor gives you a license number that doesn't pull up, or the status shows "inactive," walk away immediately.
Verify Insurance Coverage
Insurance requirements vary by state and project size, but most concrete work requires general liability and workers' compensation insurance. Call the contractor directly and ask for a certificate of insurance (COI) naming you as an additional insured. Don't accept verbal confirmation—get written documentation.
Request they provide:
- General liability insurance (minimum $1 million coverage for most residential projects)
- Workers' compensation insurance (required in nearly all states if they have employees)
- Proof of current coverage with expiration dates
Contact the insurance company directly to confirm the policy is active. Many contractors provide fake or outdated certificates; a quick call to the insurer takes five minutes and protects you entirely.
Red Flags in Initial Contact
Unlicensed contractors often use language that signals they're cutting corners. If they say things like "I work cash only," "no paperwork," "I can beat any bid by 30%," or "I don't need permits for this job," those are immediate disqualifications.
Legitimate concrete contractors build permit costs and insurance premiums into their bids. They expect to file for inspections and understand local building codes. If someone's price is suspiciously low—typically 40%+ below competitive quotes—there's usually a reason.
Get Everything in Writing
A signed contract protects both parties. It should include:
- Specific scope of work (concrete thickness, reinforcement, finish type, square footage)
- Total cost and payment schedule
- Timeline with start and completion dates
- Warranty information (concrete typically warrants 1-2 years against defects)
- Proof of licensing and insurance attached as exhibits
Never pay the full amount upfront. Standard practice is 10–25% deposit, progress payments tied to completed phases, and final payment only after the work passes inspection and cure time is satisfied.
Verify References and Track Record
Ask for at least three recent residential or commercial projects. Contact those clients directly—not through the contractor—to ask about quality, timeline adherence, and cleanup. Ask if they'd hire the same contractor again.
Check the Better Business Bureau and Google reviews for patterns. One negative review is normal; multiple complaints about incomplete work, poor quality, or payment disputes signal systemic problems. Look specifically for complaints about insurance claims being denied—that's a sign the contractor operated without valid coverage.
Local Building Department Check
Contact your local building/planning department and ask if the contractor has pulled permits for recent projects in your area. This accomplishes two things: you verify they're comfortable working within code requirements, and you can cross-reference against their license status.
A contractor unwilling to pull permits is either unlicensed or trying to hide work from inspectors. Either way, it's disqualifying.
Use a Comparison Platform
Finding and vetting multiple contractors individually is time-consuming. Platforms like Mercoly let you compare and find trusted concrete contractors in one place, often with verified credentials already displayed. This streamlines the verification process and gives you confidence in multiple options.
Frequently Asked Questions
Q: What's the typical cost difference between licensed and unlicensed contractors? Unlicensed contractors typically bid 20–40% lower, but this often reflects skipped permits, no insurance, and lower quality materials or workmanship.
Q: Can I sue if an uninsured contractor damages my property? Yes, but collecting is difficult; most uninsured contractors have few assets. You'd typically file a homeowner's insurance claim, which raises your rates and may include a deductible you pay.
Q: How long should I expect concrete to cure before use? Standard concrete cures fully in 28 days, but is usually safe for light use after 7 days. A licensed contractor will provide written cure time guidelines; unlicensed ones often downplay this.
Start your contractor search by verifying their license and insurance today—it's the fastest way to eliminate risk.