Contractor Scams: 5 Ways to Tell a Contractor Is Taking Advantage of You

Updated September 17, 2026

One of the best ways to ensure a home project or repair runs smoothly is by hiring a contractor you can trust. A home renovation can be stressful on its own, and things can feel much worse when you’re dealing with a contractor who might not be as honest as they seem.

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Worried about potential contractor scams? Here's everything you need to know.

Signs You’re Getting Scammed by a Contractor

The Contractor Doesn't Have a License or Insurance

The most important things to check for when hiring a contractor are a license and insurance. If your contractor can't show they're licensed and insured, you're exposing yourself to many potential issues—possibly without recourse.

A license shows your contractor went through the proper certification process and has verified expertise to do the job. An unlicensed contractor may provide good service ... and they may not. No external body can determine the quality of their work. So, you're going to just have to cross your fingers. Most states also have a database where you can check that a contractor's license is in good standing.

Insurance is just as important because it offers protection if their work causes severe damage to your property. Insurance may also protect you if your contractor quits midway through the project or takes off with your deposit. Ask a contractor for their insurance certificate and check with their insurance company to ensure the policy is up to date.

There's No Contract

A contract is supposed to protect both you and the contractor. So when a contractor refuses to sign one or doesn’t even have one, you’re either dealing with someone who’s very inexperienced or who doesn’t have good intentions.

Without a contract, you won’t have a clear way to confirm when the work is complete or what needs to be done for the project to be considered finished. Similarly, a contractor can often demand more money without cause, which is a warning sign on its own. Without a legally binding contract, contractors can easily disappear or fail to complete the work, since they face less risk of legal accountability.

The Contractor Requires a Huge Upfront Payment

While most contractors require a deposit to cover upfront material costs, initial labor and time spent applying for permits, keep this percentage range in mind. While it can vary by location, most contractors require between 10% and 30% as a down payment. If it’s above that, it may be a bad sign that you're dealing with a contractor scam. Some scams require 50% or more, just for the contractor to run off with the money.

Bait-and-Switch

A contractor bait-and-switch occurs when a contractor initially offers a low bid, then requests much more as the job progresses. This leaves homeowners vulnerable. Consider a job that requires demolition, excavation or expensive materials to be purchased up front. After that part is done, the contractor can threaten to walk — and you're in a tough spot. If you refuse to pay more, you're left with damage and an unfinished project.

This can be a challenging experience, which is why it’s essential that the contract you sign clearly outlines expectations and requirements for these situations. While it’s not uncommon for contractors to encounter scenarios where more work than initially expected is required, a solid contract should cover this in writing to avoid ambiguity.

The Contractor Uses High-Pressure Sales Tactics

A major contractor red flag is using high-pressure sales tactics to close a sale. This can range from trying to get you to sign the contract immediately without time to review it, to rushing you into hiring their services with claims of huge discounts available only today. If you feel rushed, take time to do your research and review any documents you sign.

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How to Prevent Contractor Scams

One of the best ways to avoid scammers is by researching the company you’re looking to hire. Check their online reviews and look at their previous projects. Local companies care about their reputation, so they’re less likely to scam you if they know you’ll expose them or leave a bad review. Similarly, if you notice a contractor has many bad reviews, it might be for a reason.

Getting multiple quotes is also a good way to find a good contractor, but don’t always go with the cheapest option. Multiple quotes can show you the typical price range you should expect. Anything outside that range (or if one number is significantly different from the others) signals that something is off. A contractor who significantly underbids others may be trying a bait-and-switch, doesn’t need to worry about paying for insurance or uses cheap, unlicensed labor. If someone's pricing is much higher than others', they may be

You should also choose a contractor that does things by the book, meaning they have the proper licenses and insurance and won’t try to skip out on important things like permits. If they’re willing to cut corners here, don’t be surprised if they do the same with low-quality materials or inexperienced workers.