The Ontario renovation scam catalogue

The eight patterns

1. The leftover-materials pitch

An unsolicited knock: they've got asphalt, shingles or sealer left over from a job "just down the street," at a today-only price. Real contractors don't have surprise leftovers and don't sell door to door.

2. Storm chasers

After wind, hail or flooding, out-of-town crews sweep in, quote fast repairs, take deposits, and vanish. If you can't find them before the storm, you won't find them after the deposit.

3. The cash discount

"Save the tax" sounds like a favour. What it removes is the paper trail: no invoice, no contract enforcement, no chargeback, no recourse.

4. Deposit theft

30 to 50% up front, then thin work or none. Anything over 25% up front is a widely cited warning sign, against Ontario's recommended ~10%. The deposit rules and what a legitimate payment schedule looks like are covered in depth in our guide to renovation payments and legal rights.

5. Low-ball then escalate

Win the bid cheap, demolish, then "discover" problems and double the price while you're living in a gutted house. A written estimate defeats this: Ontario law caps the final price at 10% above it without your signed consent.

6. Hold the job hostage

Threatening to walk off a half-finished job unless more cash appears immediately. This works because the homeowner front-loaded payments; staged payments remove the leverage.

7. The insurance assignment

After a flood or fire, signing your insurance payout over to the contractor. You lose control of the money and, soon after, of the project.

8. Phoenixing

When complaints and judgments pile up, dissolve the company and reopen under a new name, shedding warranties and debts. One Innisfil contractor documented by CP24 in July 2026 closed his company in 2023 and reopened under a new name in 2025, leaving individual clients out $33,000, $55,000 and $14,900.

"Scammers don't sound like scammers. They sound like the nicest, most flexible guy you've talked to all week, because being agreeable is free and paperwork isn't. The moment someone's charm is doing the work their documents should do, that's the flag."

Mitch Fraser, owner, Ontario Contracting Co.

The case that shows the scale

AGM Renovations shut down abruptly in February 2025 after a CBC Marketplace investigation into its work quality. One Oshawa homeowner's basement-apartment conversion was left 30 to 40% complete; he paid at least $150,000 to new contractors on top of what he still owed a financing company. Eight plaintiffs filed a joint lawsuit and police confirmed an active investigation. That wasn't a fly-by-night operator; it was a heavily advertised brand. Marketing is not vetting.

The red-flag checklist

• No written contract, or resistance to one ("we don't need the paperwork")
• Cash only, or a big-deposit demand
• No physical local address or verifiable presence
• Can't produce WSIB clearance or a $2M insurance certificate
• "You don't need a permit for this" (see what actually triggers a permit in Brantford and Brant County)
• Unlicensed trades on electrical, plumbing or gas work
• High-pressure, sign-today, one-day-only pricing
• Vague one-number estimates with no line items or dates
• Threats or intimidation when questioned

Why the honest process beats every tactic

Look back at the eight patterns: every single one depends on money moving before proof. Written contract, verified credentials, small deposit, staged payments, permits in the municipal system, and the 10% holdback at the end. That sequence, laid out step by step in our hiring walkthrough, doesn't just reduce the risk; it makes the scam economically impossible.