Drive through any Ontario town in April after the snow melts. Look at the cars. Rust bubbles on wheel arches. Brown streaks along rocker panels. Perforated fenders on 5-year-old trucks. Road salt does not just melt ice — it eats metal.

Canada uses over 5 million tonnes of road salt annually. Ontario, Quebec, New Brunswick, Nova Scotia, PEI — the "rust belt" provinces where cars age twice as fast as in BC or Alberta. A Toyota Corolla that lasts 15 years in Vancouver lasts 8 in Toronto if the underbody is not protected.

This destruction creates a massive opportunity for shops that offer rust prevention and treatment services.

The Rust Prevention Service Menu

  • New vehicle undercoating: $500–$800. Applied to new/near-new cars before their first winter. Oil-based or rubberised spray.
  • Annual undercoating reapplication: $200–$400. Every fall before salt season. Quick, profitable work.
  • Rust repair + undercoating: $800–$3,000. Cut out rust, weld in new metal, treat, and coat. Labour-intensive but high-margin.
  • Pre-sale rust treatment: $300–$600. Sellers preparing a car for sale need rust addressed for the safety inspection.
  • Krown/Rust Check competitor: Franchise rust proofing costs $150–$200/year. You can offer equivalent service with better inspection at $250–$350.

The Fall Campaign

September–October is your window. Before the salt trucks roll out in November, every car in Ontario should have underbody protection. Send this to your customer list:

"Salt season starts next month. Book your annual undercoating — $299. Protect your car from the rust that eats vehicles in half the time. 45-minute appointment."

100 customers × $299 = $29,900 from one email campaign. Plus the 30% who need additional rust repair: another $10,000–$20,000.

The Safety Inspection Connection

In Ontario, the Safety Standards Certificate (SSC) inspection can fail a car for structural rust. When you do annual undercoating, you are also inspecting the underbody. You catch structural rust early — before it becomes an SSC failure or worse, a safety hazard.

"During your undercoating, we found early rust on the subframe. If we treat it now: $400. If we wait 2 years: $2,500 for subframe replacement." That is honest, valuable advice that builds trust for life.

Track every undercoating, every rust inspection, every treatment with Mekavo. Annual reminders bring customers back every fall. Free for Canadian shops.