How to Hire a Contractor Without Getting Scammed: 12 Red Flags to Watch For
Contractor scams cost homeowners $3 billion+ annually. Learn the 12 warning signs, verification steps, and contract must-haves that protect your money and your project.
Contractor fraud costs American homeowners an estimated $3 billion annually, according to the National Association of Consumer Advocates. The most common scams: taking deposits and disappearing, performing substandard work, and charging for work never completed.
Quick Answer: Before hiring any contractor, verify their license (check your state's licensing board), confirm insurance (request a Certificate of Insurance and call the insurer), get 3+ written quotes, and never pay more than 10-15% upfront. If any contractor demands cash-only, wants full payment before starting, or pressures you to decide immediately — walk away.
Here's how to protect yourself at every stage of the hiring process.
The 12 Red Flags That Signal a Scam
Red Flags Before Hiring
1. No license or won't provide a license number. Every state with licensing requirements makes license verification free and public. If a contractor claims to be licensed but won't give you a number to verify, they're lying. In California, check the CSLB website. In Florida, check DBPR. For other states, see our license guide.
2. No physical business address. A legitimate contractor has a real office or business address — not just a phone number and a truck. A P.O. Box is a yellow flag. No address at all is a red flag.
3. Significantly lower bid than competitors. If one bid is 30-50% lower than the others, something is wrong. They're either planning to cut corners on materials, use unlicensed subcontractors, or hit you with "change orders" that bring the price back up (and then some).
4. Demands cash only or won't provide a written contract. Cash payments leave no paper trail. Legitimate contractors accept checks, credit cards, and financing. No written contract means no legal recourse if things go wrong.
5. High-pressure sales tactics. "This price is only good today." "I have another customer who wants this slot." "I can't hold this price past Friday." These are sales tactics, not legitimate business practices. A good contractor has enough work that they don't need to pressure you.
6. Door-to-door solicitation after a storm. "Storm chasers" follow severe weather events, going door-to-door offering emergency repairs. Many collect deposits and disappear, or perform shoddy work that fails within months. The Better Business Bureau consistently warns about post-storm contractor scams.
Red Flags During the Project
7. Demands large upfront payment. Industry standard is 10-15% deposit, with progress payments tied to milestones. Any contractor asking for 50%+ upfront is a risk. In some states (like California), advance deposits are legally capped — in CA, it's $1,000 or 10% of the contract price, whichever is less.
8. Won't pull permits. If your project requires a building permit and your contractor suggests skipping it "to save time and money," they're exposing you to fines, insurance issues, and safety risks. Permitted work protects YOU, not the contractor.
9. Subcontracts everything. Some "general contractors" are just middlemen who subcontract 100% of the work. This isn't inherently bad, but a GC who has no employees and no equipment is taking a markup for coordination only. Make sure you understand who's actually doing the work.
10. Constantly changes the scope/price. Legitimate change orders happen when unexpected issues arise (rotten subfloor discovered during a bathroom remodel, for example). But a contractor who routinely "discovers" expensive new problems is either incompetent at estimating or deliberately underbidding to win the job.
11. Disappears for days without communication. A contractor managing your project should be reachable within 24 hours. Multi-day disappearances, especially during active work, are a sign they're juggling too many jobs or losing interest in yours.
12. Asks you to pay upfront for "materials at cost." Some scammers claim they can get you a deal on materials if you pay them directly upfront. Legitimate contractors either include materials in the contract price or have accounts with suppliers. They don't need your cash to buy lumber.
The Verification Checklist
Before signing any contract, verify these five things:
1. License verification
2. Insurance verification
3. References and reviews
4. Written contract with these elements
Every contractor agreement should include:5. Lien waiver understanding
When you make final payment, get a lien waiver from the contractor AND any subcontractors. Without this, a subcontractor who wasn't paid by your GC can place a lien on your house — even though you paid the GC in full. This happens more often than you'd think.The Payment Schedule That Protects You
Never pay the final 20% until:
What to Do If You've Been Scammed
If you believe you've been the victim of contractor fraud:
Frequently Asked Questions
How many quotes should I get?
At minimum 3, ideally 4-5 for large projects. This gives you enough data points to identify outliers (too high or suspiciously low). Use our cost calculators to know what range to expect before you call.Is the cheapest bid always bad?
Not always — but it warrants investigation. Ask why they're lower. If they found efficiencies or use less expensive (but still quality) materials, that's fine. If they can't explain the difference, be cautious.Should I hire a contractor who isn't licensed?
In states that require licensing — no, never. You lose all legal protections. In states without licensing requirements, verify insurance, references, and BBB status instead. See our state licensing guide to check your state's requirements.What warranty should I expect?
Industry standard is 1-2 years on workmanship, with manufacturer warranties on materials (which vary by product). Some states mandate minimum warranty periods. Get warranty terms in writing in the contract.Can I fire my contractor mid-project?
Yes, but review your contract's termination clause first. You'll typically owe for work completed to date plus any non-returnable materials. Document the state of the project thoroughly (photos, video) before and after the contractor leaves.---
*Before hiring, use our cost calculators to understand fair pricing for your project. Check contractor license requirements for your state. And if you're unsure about anything, ask our AI assistant for guidance.*
