The Free Inspection Scam
A “free inspection” is a lead-generation tool, not a public service. If you let an unvetted door-to-door salesperson onto your roof alone, they might manufacture the damage they couldn’t find.
The Vandalism Index
If a contractor knocks on your door and offers to climb on your roof for free, you must ask yourself what their financial incentive is. If they inspect the roof and find nothing, they just worked for free. Therefore, they are highly incentivized to find damage. If they can’t find it, some will create it.
1. The “Dime Trick” (Fake Hail)
The most notorious vandalism tactic in the roofing industry is the “Dime Trick.” If a storm chaser gets on your roof and realizes the hail wasn’t large enough to damage the shingles, they will take a dime (or a quarter), press it hard into the asphalt, and spin it.
This aggressively grinds the granules off in a perfect circle, mimicking a hail strike. They will do this 10 to 12 times inside a 10×10 square, draw chalk circles around their vandalism, and come down the ladder to show you photos of your “destroyed” roof.
2. Manufactured Wind Creases
The Lift and Snap
If a storm chaser is looking for wind damage, they will test the sealant strips on your shingles. If they find shingles that are unsealed but not actually damaged, they will hook their fingers under the tab, violently yank the shingle backward past 90 degrees, and snap the fiberglass mat themselves. They just converted a minor maintenance issue into a $15,000 “wind crease” claim.
3. The Danger of Mechanical Marring
You might think, “If they damage the roof to get the insurance company to buy me a new one, isn’t that a win-win?”
Absolutely not. Insurance adjusters are specifically trained to identify “Mechanical Marring.” They can easily tell the difference between the random, multi-directional impact of natural hail and the uniform, repetitive damage caused by a ball-peen hammer or a spinning coin.
If the adjuster spots mechanical marring, they will immediately deny the claim for fraud. Furthermore, because your roof has now been physically vandalized, the carrier may issue a notice of cancellation. You will be dropped by your insurance company and left with a destroyed roof that you must pay to fix out of pocket.
4. How to Reject the Canvas Pitch
You should never allow an unvetted contractor on your roof. If you suspect you have storm damage, research a local, established contractor with a physical office and request an inspection on your terms.
“I do not accept unsolicited roof inspections, and I do not allow unvetted personnel on my property due to liability concerns. If I require an assessment, I will schedule an appointment with a contractor I have researched through the local Chamber of Commerce. Please do not leave a flyer.”