Don't Fall Victim to These 10 Contractor Scams

TLDR
Most contractors are great people. Some are dirty little people with dirty little tricks, and a few are downright criminal. The defense isn’t paranoia. It’s repeatable systems, strong vendor relationships, and never letting your back get against the wall on time or money.

Table of Contents

The Five Classics

These have been around forever. Most of them you’ve probably heard of. If you haven’t, congratulations, here’s your crash course.

1. The X-Ray

“There’s termites in the wall. It’s going to cost how much?”

This is the one where there’s always something scary inside the wall and it always costs a fortune. Sometimes it’s real. A lot of times it’s padded with what I call the fear tax, where a vague problem gets quoted as one big scary number instead of a list of specific tasks.

The fix: break the scary job into parts. If the story is “the whole wall is rotted,” your response is, “Okay, is it the sill plate? A couple studs? Do we need to rebuild the header?” When you name the tasks, the multiplier shrinks.

2. The Kickback

This one’s been around in every industry. The contractor has a relationship with a vendor. Special markup goes in the contractor’s pocket.

Example. Contractor goes to buy lumber. $4,000 worth. He knows the operator. “Hey, call it $4,400. You take half, I take half.” Nobody ever knows.

The fix: Home Depot Pro account. You pay for the materials directly. You get text-to-confirm receipts before the purchase goes through, so you see exactly what’s being bought and can flag the Powerade and the payday bar before it hits your invoice.

3. The Black Hole

Work starts. Everything’s going well. You’re already thinking about your next flip. Then you call the contractor. He doesn’t answer. Two weeks go by. A month. Two months.

He’ll come back. He’ll get a little done. He’ll take a payment. Then another week. Another month. Eventually it gets done. But he said three months and you’re at eight.

The fix: short pay periods at first, milestone-gated draws, and never pay ahead. The contractor black hole closes when the guy knows his next paycheck hinges on him being there this week, not someday.

4. The Abraham Lincoln

“Let’s just shake on it.” I mean, we basically discussed the whole project. I’m sure they’ll have my best interest in mind. I’m sure they understand the vision of a real estate investor perfectly. I’m sure it’s basically like my corporate job. It’s so great working with polished professionals.

You get the point.

The fix: a written scope of work, a video walkthrough together, and a written pay schedule tied to specific completions. Not a contract. A paper trail on a text thread.

5. The Loss Leader

Like those half-price melons in the newspaper ad. You went to the store for the melons, but while you’re there you might as well grab the apples, and the apples are not cheap.

Initial bid is the melons. Then you need a little more. Some paint in the basement, some carpet upstairs. Those are the apples. The apples carry a hefty markup.

The fix: get the full scope of work nailed down before the first payment goes out. If the add-on list gets long, rebid it as a separate job, not as an “oh by the way.”

The Five Advanced Moves

These have evolved over time. Harder to see coming, more painful when they land.

1. The Hostage

This one requires permits. If you’ve ever tried to get a contractor off a permit they pulled for your project, you know it’s almost impossible.

Example. You need electrical done. Three contractors bid the house. All three say $12,000 to rewire. Fourth guy comes in. “It’s only going to be $3,000 to $4,000. Those other guys are crazy, you don’t need to rewire.” You take the low bid.

He pulls the permit. The inspector comes in and says, “Yeah, you need to rewire this house.” And now the cost from the contractor who holds your permit is way higher than the original $12,000 bids you walked away from.

The fix: verify the scope with multiple contractors before you pick. If three say rewire and one says patch, the three are probably right. The hostage lives in the gap between bids.

2. The Broken Tape

Not complex, but it’ll get you.

You get flooring contractors to bid your 1,500 square foot house. Bid comes back for 1,600 square feet at X dollars per foot. Easy to catch if you’re paying attention.

Harder one: when you re-roof, it’s measured in squares. Do you know what a square is? Do you know how many squares are on your house? If you don’t, you’re an easy mark.

3. The Fair Pay

“I’ve completed half the work, can I get half the pay?”

Sure, that seems fair. Is it?

The real question: could you get the rest of the work done for the remaining half? Usually no. All the cost efficiencies are gone, and the easy tasks in that job are done. So when you pay half to a dirty contractor, poof, they’re gone, and you pay another contractor more than half to finish.

The fix: pay by completion of defined milestones, not by percentage of effort. A draw schedule that says “framing complete, MEP rough-in passed inspection, drywall hung” protects you. A draw schedule that says “50% halfway, 50% at finish” doesn’t.

4. The Omission

This one almost got me recently on a demolition job. We were taking down a whole building. Bid came in from a contractor. In the fine print I caught it. Dump fees not included.

That’s like ordering a cheeseburger and getting billed extra for the ketchup. I’ve been around long enough to look for the omissions. A new investor hasn’t.

The fix: bids include everything or they don’t get considered. Permit fees, dump fees, disposal fees, haul-off, cleanup. All of it. Make it a rule.

5. The Oopsie

This one makes me madder than all of them. You hire a contractor for a whole project. First thing they do is demo. Oopsie, they demoed too much.

“Hey, no problem, we’ll cover the extra dumpster.” Who pays for the extra drywall, the extra paint, the extra floors, the extra trim, whatever you have to rebuild because of their mistake? You, apparently.

The fix: scope the demo specifically. What walls come out, what floors come up, what stays. If it’s not on the list, it doesn’t get touched. And the mistake is on the contractor’s side of the ledger, not yours.

The Evergreen Defense

I really believe there’s an evergreen approach that protects you from all of this. Concepts are simple. Execution is grueling.

  1. Repeatable systems for project management. Same scope of work template every time. Same pay schedule every time. Same walkthrough video every time. Confidence comes from repetition, not from being the smartest guy in the room.

  2. Recruiting and maintaining superb vendors. Over time your vendor pool levels up. First you’ll have to deal with some dirty ones to figure out who’s worth keeping. relationship capital is the long game here. Pay fast, show up, respect the good ones and fire the bad ones early.

  3. Never let your back be against the wall on time or money. That is blood in the water. A dirty contractor smells desperation from a mile away and prices accordingly. Cash reserves, time buffers, financial contingency. All your decisions need to be filtered through a clear mind.

Pro Tip
The investor who gets scammed is almost always the one who ran out of runway. Fix the runway first, scams follow.

Bonus Round: Three Criminal Scams

Everything on this list made the list because I personally experienced it. The bonus round, same story. I had to learn these the hard way.

1. The Photoshop

“Hey, I got your invoice. Could you send me pictures of those floors before I pay?” No problem.

You won’t find out till much later that the pictures of the floors, the paint, the kitchen cabinets, aren’t even from your project. They’re from another project that looks the same. Or they are your project and they’re photoshopped in.

The fix: inspect in person or send a trusted third party. Pictures lie. Video helps but can still be cut. Boots on the ground before the draw.

2. The Swap Out

“Why do all the HVAC units and appliances on my houses keep going bad? Aren’t any of these houses good?”

Not when the good ones are in your contractor’s garage. I’ve seen this one on a large scale. I’m talking warehouses. They take what they need from your house, put in a worn-out unit, and tell you the original was shot.

The fix: document serial numbers on every HVAC unit, water heater, and appliance during your due diligence. If a unit “goes bad” during the rehab, the serial number tells the real story.

3. The Cash and Dash

Pay upfront. Ghosted. Hello Cancun.

The fix: never pay ahead. If someone needs a down payment to start, find someone else. Home Depot Pro account covers materials. Labor gets paid after the labor is done. This is the simplest rule in the business and it’s the one most people break first.

FAQ

How do I know if I’m getting scammed or just dealing with a normal contractor problem?

Normal contractor problems: timeline slips, small miscommunications, a bid that’s a little high. Scams: money paid and nothing delivered, documents falsified, major scope changes after the bid was accepted. If your gut says something is off, trust it. Walk the job. Look at the work. Call the references.

I’m brand new. How do I find contractors who aren’t shady in the first place?

Start with relationships, not Google. Ask other investors, ask at your local REIA meeting, ask at your lumber yard. The guys who have good reputations with other pros are almost always worth the phone call. And when you find a good one, load him up with work. Good contractors are 10x more valuable than new ones because they’ve already passed the scam filter.

What’s the single best protection against all of these?

Don’t pay ahead, and document everything in a text thread the contractor can pull up. Those two rules kill about 80% of the scams on this list.

What if a contractor puts a mechanic’s lien on my house because I wouldn’t pay for scammy work?

It can happen, but it’s rare. Document the bad work with pictures and video. If they file a lien and you’re actually in the right, most small claims judges will look at the evidence and rule for you. A contractor who knows they did scam work usually won’t follow through with the administrative paperwork anyway. Stand your ground when you’re right.

How many of these have actually happened to me?

All ten of the regular ones. All three criminal ones. I’ve worked with hundreds of contractors across 300 flips. Every one of these got me at least once. Now they don’t.