Most contractor horror stories share the same opening scene: a homeowner who noticed a warning sign, talked themselves out of it, and hired anyway. The signals are rarely subtle once you know what to look for. Here are the ones worth walking away over.
Red flags before you hire
The deposit is enormous
A reasonable deposit covers materials — often 10 to 30% depending on the job. A demand for half or more up front, especially in cash, is the single most common setup for a contractor who vanishes or runs out of money on someone else’s project.
The quote is dramatically lower than the rest
If three bids cluster together and one comes in far below, the outlier is not a bargain — it is usually missing scope, planning for change orders, or cutting corners you will pay for later. Ask what is not included.
No license, no insurance, no paper trail
An unlicensed contractor may be cheaper because they are avoiding the costs that protect you. If they are hurt on your property and carry no workers’ comp, the liability can land on your homeowner’s policy.
You are not being difficult by asking for a license number and proof of insurance. A professional expects it. Someone who bristles at it is telling you something.
Everything is verbal
“We don’t really do contracts” is a complete sentence you should respond to by leaving. Without a written, itemized agreement you have no scope, no timeline, and no recourse.
High pressure and false urgency
Door-to-door pitches, “today only” pricing, and manufactured deadlines are sales tactics, not construction realities. Good contractors have a backlog; they are not chasing you down the driveway.
Red flags after work begins
- The crew that showed up is not the company you vetted — and no one mentioned subcontracting.
- Requests for more money before agreed milestones are met, with vague explanations.
- Permits that never materialize after you were told they were “handled.”
- Communication that goes quiet the moment a problem appears.
Protect yourself on paper: insist on a written contract, a milestone-based payment schedule, proof of license and insurance, and lien waivers as subs and suppliers are paid. These four documents prevent the large majority of disputes.
How vetting changes the odds
Every red flag above is easier to catch when someone has already checked the basics — license status, insurance, and a track record of finished jobs. That verification is exactly the homework most homeowners skip and most bad actors count on. Do it first, and the warning signs you are watching for usually never appear.
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