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12 Contractor Red Flags to Watch For

Door-to-door offers, cash-only deals, big upfront payments and vague quotes: the warning signs of a bad contractor or a home improvement scam.

Published Oct 27, 2026. 3 min read.

Red flag vs. good sign: stained handwritten quote vs. a clean printed quote

Most contractors are honest. But home improvement scams are among the most common consumer complaints in the US, and they often follow the same pattern. Watch for these red flags.

Warning signs in the first contact

  1. They knock on your door uninvited, often after a storm, saying they "noticed a problem".
  2. "Leftover materials" from a job nearby at a special price.
  3. Pressure to decide today — "this price is only good now".
  4. No business address, only a cell number, or an out-of-state vehicle with no company name.

Warning signs in the quote

  1. A vague or handwritten quote with one total and no list of work or materials.
  2. A price far below every other quote, which often means missing work or surprise add-ons later.
  3. No license number, or a license that doesn't match the company name.
  4. Can't show proof of insurance.

Warning signs about money

  1. Cash only, or payment to a personal name.
  2. Full or large payment up front, before any work or materials arrive.
  3. Asks you to pull the permit or to skip permits altogether.
  4. Asks you to sign over your insurance check or offers to "waive" your insurance deductible.

Your right to cancel

Under the FTC's Cooling-Off Rule, if you buy something for $25 or more at your home from a seller who came to you, you generally have three business days to cancel for a full refund, and the seller must tell you about this right in writing. Many states add their own protections. Emergency repairs you request may be treated differently.

What to do instead

  • look up the contractor's license.
  • Get at least three itemized written quotes and compare them.
  • Pay by check or credit card, never cash, and in stages.
  • Report scams to your state attorney general and the FTC at ReportFraud.ftc.gov.

Frequently asked questions

How do I report a contractor scam?

Contact your state attorney general's consumer protection office and your state contractor licensing board, and report it to the FTC at ReportFraud.ftc.gov.

Is it a red flag if a contractor wants a deposit?

A modest deposit is normal. A request for most or all of the money before work starts is a red flag. Some states limit deposits by law.

What is a storm chaser?

An out-of-area crew that follows storms, going door to door for roof and siding jobs. Some do fine work, but many leave before problems show up. Prefer established local companies.

Sources

Prices are national ranges for planning only. Your price depends on your home, your region and the contractor. This guide is general information, not professional, legal or insurance advice.

This guide is general information, not legal advice. Rules differ by state and city; check with your state's consumer protection office or a local attorney.

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