10 Red Flags When Hiring a Contractor (2026 Guide)

The California Contractors State License Board fielded 20,000+ complaints in 2024. The Texas TDLR processed over 8,000. Most victims say the same thing: the warning signs were there. They just didn't know what to look for.

These aren't obscure tells. They're patterns that repeat across nearly every contractor fraud case on record. Here are the ten most reliable ones.

1. They Won't Show You a License Number

This is the clearest signal in the business. A licensed contractor knows their license number the way they know their phone number. In California, they're legally required to display it on business cards, contracts, estimates, advertisements, and their vehicles. In Texas, it must appear on every written bid.

If someone says they "left the card at the office," "don't have it memorized," or tells you to just trust them — stop. Run any license number through our checker in seconds to confirm it's real, active, and matches the person standing in front of you. A real contractor will hand it over without hesitation.

2. Cash-Only, No Written Contract

Legitimate contractors accept checks, ACH, and credit cards. Cash-only means one thing: no paper trail. No paper trail means no recourse when things go wrong.

In California, any home improvement job over $500 requires a written contract by law (Business and Professions Code §7159). That contract must include the contractor's name, license number, address, project description, start and completion dates, and payment schedule. If a contractor resists putting anything in writing, they know they can't hold up their end of the deal.

3. They Demand a Large Upfront Deposit

In California, contractors are legally prohibited from collecting more than 10% of the total contract price or $1,000, whichever is less, as a down payment before work begins. This law exists specifically because large upfront deposits are the most common mechanism for contractor fraud: collect the money, disappear.

Texas has no statutory cap, but any reputable contractor will structure payments around project milestones — not front-loaded lump sums. If someone asks for 40%, 50%, or "half upfront," walk away. The FTC reports that advance-fee contractor scams spike sharply in the weeks following major storms and natural disasters.

4. No Physical Business Address

A legitimate contracting business has a location. Not a P.O. box. Not a Google Voice number that routes to a cell phone. Not an address that turns out to be a UPS Store or an empty lot.

Before you sign anything, search the business name and address. Verify the address is real. Check whether the name on the license matches the name on the quote. The CSLB and TDLR both publish the registered business address for every licensed contractor. If it doesn't match what you're being told, that's a problem.

5. They Pressure You to Decide Today

High-pressure sales tactics — "this price is only good today," "I have another job that will take this slot," "materials are going up next week" — are a standard tool of fraud. The pressure is designed to prevent you from checking credentials, getting competing bids, or talking to anyone who might talk you out of it.

Any contractor who makes a fair offer is happy to let you take 24-48 hours to verify their license, check references, and compare bids. If they won't, they're depending on you not doing those things.

6. No Workers' Compensation Insurance

California requires all contractors with employees to carry workers' compensation insurance. If a worker gets hurt on your property and the contractor has no workers' comp, you can be held personally liable as the property owner. We're talking $100,000 to $500,000+ in medical claims; your homeowner's insurance may deny the claim because you hired someone without verifying their credentials.

Solo operators with no employees can legally claim an exemption, but you need to verify that's actually the case. License records show workers' comp status for every California contractor. In Texas, workers' comp isn't mandatory, but any contractor running a crew who can't show you a certificate is a liability risk.

7. The Price Is Suspiciously Low

There's a reason licensed contractors cost more. They carry insurance. They pay for permits. They hire trained workers who get paid properly. They operate real businesses with overhead.

When a bid comes in 30-50% below everyone else, the contractor is either cutting corners on materials, skipping permits, using unlicensed workers, or planning to disappear with a deposit. The NASCLA estimates unlicensed contractor fraud costs American homeowners roughly $17 billion per year. The hook almost always starts with a price that seems too good to pass up.

Get three bids. If one is dramatically cheaper, ask yourself specifically what they're leaving out.

8. They Want to Pull the Permit in Your Name

This one is subtle. Only licensed contractors can pull building permits in their own name. When an unlicensed contractor asks you to pull the permit as the "homeowner-builder," they're telling you they can't do it themselves. They're not licensed.

Pulling a permit as a homeowner-builder means you accept full legal responsibility for the work. If it fails inspection, you fix it. If it causes a fire, you're liable. If it creates problems when you sell, you disclose it. The contractor gets paid and moves on. You own every consequence.

9. No References or Online Presence

Established contractors have a trail. Google reviews. Yelp listings. Houzz profiles. Neighbors they've worked for who will take your call. Business registration records. A website that's been up for more than six months.

A contractor with no reviews, no history, no references, and a website created last month hasn't built a reputation because they either just started, constantly change their name to escape complaints, or both. Ask for three references from jobs completed in the last 12 months and call all three. If they can't provide them, that tells you everything.

10. They Show Up Unsolicited After a Disaster

Storm chasers are a documented category of contractor fraud. After hurricanes, floods, wildfires, and hailstorms, unlicensed operators flood affected neighborhoods going door-to-door offering immediate help. They exploit urgency, fear, and the fact that reputable local contractors are often backlogged for weeks.

The FTC and CSLB both issue alerts after every major California disaster warning about exactly this pattern. These operators take large deposits, do partial or shoddy work, then disappear — often crossing into another state. If someone knocks on your door within 48 hours of a disaster offering to fix your damage, treat it as a red flag until proven otherwise. Verify their license before you say a word about payment.

What to Do If You Spot Red Flags

If something feels off, here's the sequence:

1. Verify the license. Run the license number through our free checker — it takes 10 seconds and shows status, classification, bond, workers' comp, and disciplinary history.
2. Check the BBB. Search the business name at bbb.org for complaint history. A pattern of unresolved complaints is more telling than isolated incidents.
3. Contact the state board. California: cslb.ca.gov or 800-321-CSLB. Texas: tdlr.texas.gov. Both have complaint lookup tools and consumer hotlines.
4. Walk away if anything doesn't add up. If they refuse, that's your answer. Pushback on a license check is itself a red flag.

How to Protect Yourself