Find trusted rust proofing & protection shops across Canada. Select your city below.
Road salt is the reason cars rust faster in Canada than almost anywhere else. Rust protection will not make a car immune, but it can slow the damage a lot, especially on the frame, brake lines and hidden cavities you cannot see. This page explains the main methods, what they typically cost, and how to avoid paying for a poor application.
Last updated: October 2026
A thin, self-healing film that creeps into seams and cavities. It stays soft, so it is usually reapplied once a year, and it can drip for a day or two after application.
Dries to a firmer film than oil. Lasts longer between applications but can crack on older, flexing surfaces.
A hard coating mostly used on underbodies and wheel wells. It can also reduce road noise, but if it is applied over rust or chips it can trap moisture.
These devices claim to reduce corrosion with a small electric current. Evidence for them is mixed, so ask a shop for independent proof before paying extra.
Typical ranges only. Large trucks and SUVs usually cost more.
The vehicle should be washed and dried first. Spraying over dirt and moisture defeats the purpose.
Doors, rocker panels and frame rails should be treated through the factory holes or drilled access points.
Brakes, exhaust and rubber parts should be protected from overspray.
Ask what is covered, how long it lasts, and what the annual inspection involves.
Most treatments need a yearly top-up to stay effective.
Select your city to find rust proofing & protection shops
Many modern vehicles have factory corrosion protection, but in salt-heavy regions an additional annual treatment still helps protect hidden areas. It matters most if you plan to keep the car a long time.
In the fall, before the salt season starts, and when the vehicle can be dry. For a new vehicle, do it within the first year.
It should not, but check the terms of your warranty and the shop's paperwork. Some manufacturers have conditions about drilling or modifying body panels.
You can slow the progress, but you cannot reverse it. The rust should be cleaned or treated first, and a shop should tell you honestly if it is too far gone.
Get free quotes from verified shops in your area.
Get Free Quotes