Contractor Scam Red Flags

Most contractors are honest. A small number are not, and their tactics are remarkably consistent. Knowing the patterns protects you before money changes hands. The FTC’s consumer guidance on hiring a contractor highlights many of the same warning signs listed here.

Red Flags at First Contact

1. They Knock on Your Door Uninvited

Especially after a storm. Legitimate contractors are busy after storms too, but door-to-door “we noticed your roof” offers are a classic opening.

2. They Have “Leftover Materials” from a Job Nearby

The discount is the bait. The work is often poor and the business hard to find later.

3. They Will Not Give a Registration Number

In Washington, a contractor offering or bidding on work must be registered. A missing number is the clearest warning sign there is.

4. The Number Belongs to Someone Else

Check the name on the record matches the business you are talking to.

5. No Physical Business Address

A phone number and a first name are not enough.

Red Flags in the Sales Pitch

6. Pressure to Decide Today

“This price is only good if you sign now” is a tactic. A real quote can wait a day while you check it.

7. Prices Far Below Other Bids

A bid dramatically lower than others may skip permits, insurance or materials, or may be a hook for later “unexpected” costs.

8. They Offer to Skip the Permit

“You’ll save money without a permit” means uninspected work and possible problems when you sell.

9. They Ask You to Pull the Permit

The homeowner who pulls the permit takes on responsibility. Ask why the contractor will not.

Red Flags Around Money

10. Cash Only

Cash leaves no record. Pay by a traceable method.

11. Large Deposits Up Front

Big deposits before any work is scheduled are the core of many scams.

12. Payments Ahead of Work

Payment schedules should follow completed work.

Red Flags Around Paperwork

13. No Written Contract

Or a vague one-paragraph estimate for a large project. Use the home improvement contract checklist for Washington.

14. No Notice to Customer

Washington requires a disclosure statement before most residential jobs of $1,000 or more.

15. Blank Spaces or Changed Terms

Never sign a contract with blanks, and read any revised version in full.

Watch out: Financing pitched at your kitchen table deserves extra care. Read every page before signing, and know that some sales made at your home come with a short cancellation right.

What to Do When You Spot Red Flags

1. Slow down. Do not sign or pay.
2. Verify the registration in the Washington contractor license lookup and on L&I Verify.
3. Get other bids from registered contractors.
4. Ask for references and call them.
5. Search the business name with words like “complaint” or “lawsuit”.

If You Have Already Paid

• Stop further payments.
• Put your concerns in writing to the contractor.
• Gather the contract, receipts and messages.
• Check whether the contractor is registered and has a bond.
• Consider your options: a bond claim, a complaint or a report. See how to file a complaint against a contractor in Washington.

If you signed at home within the last few days, check can you cancel a contract with a contractor in Washington? right away; cancellation windows are short.

Where to Report

• Unregistered contracting: L&I’s Report a Contractor tool or 1-888-811-5974 (option 1). Reports can be anonymous.
• Consumer fraud and unfair practices: the Washington Attorney General’s Office complaint form.
• Crimes such as theft: your local police department.

Groups Targeted Most Often

Older homeowners, people recovering from storms or fires, and people with limited English are targeted more often. If you help a parent or neighbour with home repairs, share this list with them and offer to check registrations together.

Good Signs to Look for Instead

• A registration number offered without being asked.
• An ACTIVE record with current bond and insurance.
• A detailed written bid and contract.
• A modest deposit and milestone payments.
• Permits pulled by the contractor.
• References from recent, similar jobs.

A Worked Example: the Storm-chaser Script

After a windstorm, a friendly crew knocks on your door. They say they were working on a neighbour’s roof, noticed missing shingles on yours, and can fix it today if you sign now, because they are leaving town tomorrow. They offer to “handle the insurance” and ask for a deposit to buy materials.

Count the red flags: unsolicited contact, a nearby-job story, urgency, an offer to deal with your insurer, and a deposit before any paperwork. Any one of these is worth noticing. Together, they are a pattern.

The safe response is simple. Thank them, take a card, and do nothing that day. Call your own insurer, check the business’s registration, and get written bids from registered roofers you contacted yourself.

Red Flags After the Work Starts

Scams do not always start at the door. Watch for:

• Sudden requests for more money for “unexpected” problems, without a written change order.
• Crews that stop showing up after a large payment.
• Materials that never arrive, despite a deposit for them.
• Unfamiliar workers who say they are subcontractors but cannot say who hired them.
• Pressure to pay a supplier directly without a lien release.

If you see these, pause payments and ask for a written explanation before going further.

Trust Your Process, Not Your Impression

Scammers are often friendly, confident and persuasive. That is part of the method. Instead of judging a contractor by how trustworthy they seem, rely on a consistent process: check the registration, get the scope and price in writing, compare at least one other bid, keep the deposit modest and pay as work is completed. A legitimate contractor will fit comfortably inside that process. Someone who resists every step, or who has a reason why each step does not apply to them, is telling you something important without saying it.

Bottom Line

Scams rely on speed and trust. Take your time, check the registration and get everything in writing. The few minutes it takes are the cheapest protection you can buy.