Most contractor disputes aren't the result of one dramatic red flag — they're the result of ignoring several small ones because the price was good or the schedule was convenient. Here's the pattern list worth checking against before you sign anything.

  1. Unsolicited door-to-door offers, especially "we were just working in your neighborhood" pitches, particularly common after storms. Legitimate contractors rarely need to cold-canvas for work.
  2. Pressure to sign immediately for a "today only" discount. Real quotes don't expire in an afternoon.
  3. Cash-only insistence, or a strong preference to avoid a written contract. This is often about avoiding a paper trail, not offering you a discount.
  4. A deposit request above your state's legal cap (many states cap deposits at 10–30% of the total). Check before agreeing to anything unusual.
  5. Reluctance to provide a license number, or a license number that doesn't match when checked against your state licensing board directly.
  6. No proof of insurance, or insurance that's expired or doesn't cover the trade being performed.
  7. A quote with no itemization — just a single lump-sum number and no breakdown by material, labor, and permits.
  8. Asking you to pull the permit for work that clearly falls under their license and trade.
  9. No fixed address or verifiable business history — a P.O. box, no reviews older than a few months, or a business name that changed recently.
  10. Subcontracting without disclosure. Not inherently a problem, but you should know who's actually doing the work and confirm they're also licensed and insured.
  11. Vague material specifications like "quality tile" instead of a specific product, brand, or grade — this is how allowances get quietly downgraded mid-project.
  12. A bid dramatically below every other quote with no clear explanation (different scope, off-season timing, filling a schedule gap). An outlier-low bid is often the most expensive one by the time change orders are added.

What to do if you spot one

A single minor flag isn't automatically disqualifying — a small, reputable local outfit might genuinely be less formal about paperwork than a large franchise. But two or more of these, especially anything involving licensing, insurance, or payment structure, is a legitimate reason to walk away, even mid-negotiation. Compare against our guide on getting accurate quotes for what a legitimate quote process actually looks like, and use our calculator to sanity-check whether a suspiciously low bid is actually plausible for your project and city.

If you've already paid and work stopped

Document everything (contract, receipts, photos, texts), file a complaint with your state contractor licensing board and local consumer protection office, and check whether your state has a contractor recovery fund that can reimburse homeowners in cases of contractor fraud or abandonment.