Collision & Body Work
Rust proofing near you
Rust proofing with oil or wax sprayed inside body cavities and along the underbody to slow the corrosion that road salt starts.
- Time at the shop
- 1 h 30 min
- about
- Mobile service
- At the shop
- drop-off
- Shops in Canada
- 2
- doing this work
- Your price
- You set it
- shops bid on it
You set the budget
Shops near you send their bids
2 shops in Canada do this
Collision & Body Work
What rust proofing is
Rust proofing puts a protective film on the steel where salt and slush collect: inside doors, rocker panels and frame rails, along the underbody and around the wheel wells and seams. The film keeps salty water off the metal, and oil-based products also creep into seams and push out moisture that is already there. Products fall into two families: oil sprays renewed every year, and wax or rubberized coatings applied less often.
The underbody is washed or blown off and should be dry before any product goes on. The technician shields the brakes, exhaust and belts, opens factory drain holes, and where needed drills small access holes, to reach the cavities, and sprays with a long wand and angled nozzles, then treats hinges, seams and the underbody. Oil products drip for hours and may smoke off a hot exhaust on the first drive. Timing matters: it works far better before rust starts, and an annual product is usually renewed each fall, ahead of the salt.
- For cars, EVs, vans and trucks
- Takes about 1 h 30 min
What does rust proofing cost?
It depends on your vehicle and the shop. Post a job with your budget and compare the bids shops near you send.
Get bids
Name your budget. Shops near you bid.
2 shops across Canada do rust proofing.
What to expect
Rust proofing, step by step
What the job normally covers, what to mention in your request, and the signs that it is time. Every shop says what its bid includes.
The job
What’s included
- Underbody, wheel wells and lower seams inspected, with any existing rust noted before product goes on
- Underbody washed or blown dry so the coating reaches the steel and not a film of water
- Brakes, rotors, exhaust and rubber belts shielded from overspray
- Drain holes and plugs opened, or small access holes drilled and plugged, to reach door, rocker and frame cavities
- Oil or wax sprayed through a long wand into cavities and across the underbody and seams
- Hinges and latches treated, drain holes cleared and plugs refitted
- Excess product wiped from paint, glass and wheels, with drip protection under the vehicle
- Application date and product recorded on a sticker or the invoice for next year’s visit
Checklist
Before you post
- 01Ask which product is used, oil-based or wax, and whether it is an annual re-spray or a longer-life coating
- 02Ask for cavities inside doors, rockers and frame rails to be treated, not only the visible underbody
- 03Ask whether the shop looks for rust before it sprays; hard rubberized undercoating over rust can trap moisture
- 04Ask whether the vehicle must arrive clean and dry, whether the wash is included, and how long to expect drips and smoke
- 05On an EV or hybrid, ask whether the shop follows the maker’s guidance on which underbody parts must stay uncoated
- 06Read the warranty terms; many annual products keep coverage only if you return every year
Signs
When you need it
- A new or newer vehicle heading into its first Canadian winter, while the metal is still clean
- The fall renewal date for an annual oil spray, before road salt goes down
- A used vehicle with sound metal and only light surface rust that you plan to keep
- A vehicle that lives outside or is driven daily on salted highways
- An old application that has worn away, leaving bare metal showing on frame rails and seams
Sound familiar?Tell shops near you what you need and what you want to spend.
Get bidsHow it works
Get rust proofing done in four steps
You set the budget and choose the shop. Posting is free, and you pay the shop you hire once the work is 100% done.
- 01
Post your job
Choose the service, describe the job and your vehicle, and set your budget. It takes two minutes and costs nothing.
- 02
Shops compete
Nearby shops that do the work see your request and send their best offer: price, when they can start, what is included.
- 03
Accept the best offer
Compare bids, ratings and distance, then hire one shop. The others are told, politely.
- 04
Talk and get it done
Your conversation with the shop opens right away to agree on the day. You pay only after the job is complete.
Keep exploring
Related services
Rust repair
Rust repair on rocker panels, wheel wells, doors and box corners: bad metal cut out or ground back, then patched, sealed and repainted.
Detailing & Car Wash
Car wash
A hand car wash and dry with wheels and glass cleaned, plus an optional interior vacuum and spray wax, at a wash bay or at your door.
Tires & Wheels
Seasonal tire changeover
Seasonal tire changeover: winter tires on in the fall and your summer or all-season set back on in spring, on your own rims or remounted, wheel nuts torqued.
Maintenance & Servicing
Scheduled maintenance service
Scheduled maintenance service to your owner’s manual: oil and filter, rotation, fluids, plugs and an inspection, with a dated record for your vehicle.
Detailing & Car Wash
Car detailing
Car detailing with hand wash, clay bar and wax or sealant outside and a deep vacuum and surface clean inside, for cars, SUVs, vans and trailers.
Questions
Questions about rust proofing
General answers for drivers in Canada. The shop you hire confirms the details for your vehicle.
Is rust proofing worth it in Canada?
Usually yes, if you plan to keep the vehicle for many years. Road salt is used on Canadian roads from late fall through early spring, and it speeds up corrosion in seams, cavities and fasteners. Many newer vehicles use galvanized panels and factory sealers that hold up for years, but salt eventually finds the weak spots. Rust proofing slows that process; it cannot reverse rust that has already started.
When is the right time to have a vehicle rust proofed?
Late summer or fall, before the roads are salted, and once a year after that if you use an annual product. A new vehicle gains the most when it is treated within its first winter, before salt reaches the seams. Fall is the busy season, so book early, and ask whether a wash is included, since the underbody has to be clean and dry when the product goes on.
Can rust proofing be applied to a vehicle that already has rust?
On light surface rust, yes: oil-based products soak into the scale, push out moisture and slow it down. They do not repair rust that has eaten through metal, and holes need patching first. Thick, hard undercoating sprayed over rusty steel can trap moisture behind it, so a shop that looks underneath and tells you what it finds before spraying is doing it properly.
Will rust proofing affect my new-vehicle corrosion warranty?
It can, depending on the maker’s terms, so read the corrosion section of your warranty booklet and ask the dealer before you book. Some vehicles come with factory rust protection and specific advice on aftermarket products. Ask the rust-proofing shop to confirm in writing what it does, in particular whether it drills any holes, and keep the invoice with your service records.
Is oil-based rust proofing messy?
A little. Oil products keep dripping for several hours and can mark a driveway or garage floor, and they may smoke off the exhaust for the first few kilometres. Shops lay drip trays or paper, wipe the paint and glass, and let the vehicle drip before it leaves. Expect a light oil film underneath for weeks, and ask the shop when it is safe to wash the vehicle.
Something else to ask? Once you hire a shop, you talk to it directly in your request’s conversation.
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