5 Contractor License Red Flags Every Homeowner Should Know

Most contractor fraud is preventable if you know what to look for before you sign. The FTC and state attorneys general receive hundreds of thousands of contractor fraud complaints annually, totaling billions in consumer losses. The vast majority involve warning signs that were present before the project started but were overlooked. Knowing these five red flags can protect your home and your savings.

Why Do So Many Homeowners Hire Problem Contractors?

Homeowners often hire problem contractors not because they are careless, but because fraudulent operators are skilled at building false trust quickly. They have business cards, websites, and rehearsed answers to common questions. The warning signs are typically present — they just require a moment of scrutiny to notice. Understanding the five most predictive red flags shifts the advantage back to you.

Red Flag 1: They Cannot Provide a License Number Immediately

Every licensed contractor carries their license number. It appears on their business card, their estimate, their truck, and their contract. If you ask for a license number and the contractor hesitates, says they need to look it up, claims it's “in the office,” or provides a different number each time you ask, treat this as a serious warning.

Legitimate contractors are proud of their license number — it represents years of work, passed examinations, and maintained insurance. A contractor who is evasive about their license number either does not have one or knows that what they have will not withstand scrutiny. In either case, stop the conversation until you can verify.

Red Flag 2: They Ask for a Large Upfront Cash Deposit

Many states cap the deposit a contractor can legally require. California limits deposits to $1,000 or 10% of the contract price (whichever is less). Other states have similar caps. Even where no legal cap exists, industry practice is 10-20% at contract signing, with subsequent payments tied to construction milestones.

Any contractor who demands 30%, 40%, 50%, or “all materials upfront” is either violating state law or operating outside industry norms in a way that raises serious concerns. Cash-only demands are an additional red flag: cash payments are untraceable, leave you with no payment record, and are a hallmark of fraudulent operators who know they will not complete the work.

Red Flag 3: They Suggest Skipping the Permit

Permits exist to protect you. A permitted project gets inspected by a government official who verifies that the work meets building codes. If a contractor tells you that permits are “optional,” that permits will “just slow things down,” or that you can “save money” by skipping the permit, they are either lying to you about the legality of the work or planning to skip inspections because their work will not pass them.

Unpermitted work creates serious problems: your homeowner's insurance may deny claims related to unpermitted work; unpermitted additions and modifications must be disclosed at sale and may require remediation; and if something goes wrong (fire, structural failure, flood from a burst pipe), you may bear full liability. Never let a contractor skip a required permit.

Red Flag 4: They Only Have a PO Box or Temporary Address

A contractor who has been in business in your area for five years has a real local address, a track record in the community, and suppliers and subcontractors who can vouch for them. A contractor who has only a PO box, a cell phone number, and a new-looking website is far more likely to be a transient operator who will disappear after collecting your deposit.

This is especially important in the aftermath of disasters. The FTC and state attorneys general issue warnings about “storm chasers” — traveling contractor crews that follow hurricanes, hailstorms, and floods. These crews often have no local address, no local reputation, and no intention of being available for warranty claims. They show up, collect deposits, do marginal work, and disappear before the problems manifest.

Red Flag 5: The License Is Expired, Suspended, or Belongs to Someone Else

This is the most important red flag to check — and the one most homeowners never bother to verify. An expired license means the contractor has not maintained the insurance, bond, and continuing education requirements necessary to keep the license current. A suspended license means the contractor has been disciplined by the state licensing board. A license in another person's name means the contractor is using someone else's credentials.

All three situations are illegal and leave you unprotected. A contractor operating on an expired or suspended license may not carry current insurance. If a worker is injured on your property or your home is damaged, you may be left holding the liability.

Checking a license takes less than two minutes and costs almost nothing. Use CheckLicensed.comto verify any contractor's license status, expiration date, insurance, bond, and disciplinary history instantly for $0.99. It is the single most important due diligence step you can take before hiring.