Rust Check
The ONLY Choice for Proven, Long-Lasting Rust Protection
Protect your vehicle from the inside out with the same Rust Check products trusted since 1973 – applied by Barrie’s most experienced technicians.
Book online or call today to give rust nowhere to hide.
Why Choose Rust Check at DDF Automotive?
- 26 + years protecting Barrie & Simcoe County vehicles
- Certified Rust Check applicators – no corner-cutting, ever
- Two-tiered packages so you only pay for the coverage you need
- Optional drill / no-drill service – your preference, same great protection
- Transparent, up-front pricing for every vehicle size
PRODUCTS WE USE
Your Car’s Invisible Armor Since 1973
A light, free-flowing spray that creeps into seams, folds and welds to push out moisture and bond a microscopic shield of corrosion-fighting additives.
Thicker, Drip-Free Protection for Your Underbody
A self-healing gel that clings to frames, wheel wells and axles without the mess of runny oils.
- Drip-free formula (occasional drips on very hot days)
- Resists cracking and drying
- Builds protection with every annual application
Heavy-Duty, No-Mess Barrier for Trucks & SUVs
Our premium black undercoating sticks fast, looks sharp and stands up to salt, gravel and tough Canadian winters.

TREATED ANNUALLY AND GUARANTEED FOREVER
Not all rust protection is created equal. Your new vehicle starts off looking beautiful, but moisture, high humidity, road salt and other pollutants start deteriorating it from day one. As vehicles age, it’s critical to maintain them so the body lasts as long as your engine.
At DDF Automotive in Barrie, we offer a variety of rust proofing solutions to suit your lifestyle and car/truck.
We offer Rust Check Barrie, which is an annual oil-based application for vehicles of all ages and also Diamond Kote Barrie which is a permanent-style rust proofing for new vehicles (2 years or less) only.
Call us today to have your questions answered or get an obligation-free quote.
Packages
Vehicle Type | Price (+ HST) |
---|---|
Cars / Small Hatchbacks / Small SUVs | $149.97 |
Medium SUVs / Minivans | $159.97 |
Full-Size SUVs / 1500-Series Trucks | $169.97 |
2500 / 3500 HD Trucks | $189.97 |
Vehicle Type | Price (+ HST) |
---|---|
Cars / Small Hatchbacks | $179.97 |
Medium SUVs / Minivans | $189.97 |
Full-Size SUVs / 1500-Series Trucks | $199.97 |
2500 / 3500 HD Trucks | $239.97 |
Service | Starting Price (+ HST) |
---|---|
Full-Coverage Underbody Spray (Amber) | $89.97 |
Upgrade to Black Coat & Protect | $50.00 |
Add-Ons & Extras
Service | Price |
---|---|
Vehicle Inspection | FREE |
Dripless Upgrade (Amber) | FREE – included by default |
No-Hole Treatment | FREE |
Light Snow Wash | FREE |
Black Coat & Protect Upgrade | $50 |
Mid-Year Essential Touch-Up | $45 |
Underside Solvent Wash (pre-treatment) | $30 |
Drill or No Drill – It’s Your Call
During booking you’ll choose:
- Rust Check – No Drill Service
- Rust Check – Access Hole Drill Service
Drilling allows maximum product access to sealed cavities; holes are silicone-sealed with reusable plugs. Prefer no holes? Our techs are experts at achieving near-full coverage without drilling — it simply takes a little longer.
How the Rust Check Process Works
- Underside Prep – optional solvent wash removes grime for perfect adhesion
- First Pass – Fluid Film – creeps, displaces water & bonds anti-corrosion shield
- Second Pass – Amber or Black Coat & Protect – thick gel layer seals out salt & moisture
- Quality Check & Wipe-Down – we clean overspray, plug holes (if drilled) and invite you to inspect our work
- Annual Reminder – we’ll email or text when it’s time for next year’s treatment
✱ While we call it “dripless,” a few drips can occur on hot days – far less than traditional oil sprays.
“Spray it like you own it.”
– Doug Forth, Owner, DDF Automotive
Please Note: Prices shown are for standard-sized vehicles and do not include 13% HST. Extra-large accessories, severe rust or excessive mud may require additional product or time.
Need a custom quote? Click here or give us a call!
Underside Only Treatment
Starting at $79.97
A great option for show cars, winter-stored vehicles or trailers. We spray your vehicle underside thoroughly in Coat and Protect Amber or you can upgrade to Black Coat and Protect to get a clean look on your underside for an additional $50.
- Abrasion-resistant, dripless Amber Coat & Protect
- Cost-effective maintenance for winter-stored vehicles
Signature Full Vehicle Treatment
Starting at $129.97
Our signature spray. We use up to one third more product and give more attention to detail with our over 26 years of experience than anywhere else with a focus on first-to-rust areas, and guarantee you’ll love the finished product.
- Excellent coverage for first-to-rust areas and beyond
- We use more product than anywhere else
Gold Rust Check Package
$199.97 for any vehicle
Double the protection to hard-to-reach places for your peace of mind and the best protection. Includes Coat and Protect clear on the underside and a free mid-year respray.
- Upgrade to abrasion-resistant, dripless Amber Coat & Protect on the underside
- Double the protection
- Ideal for high-mileage passenger vehicles
- Includes free mid-year spray
Platinum Rust Check Package
$249.97 for any vehicle
The ultimate protection for your investment! Ideal for trucks and working vehicles or high-use vehicles of all sizes, this package includes Coat and Protect Black to deeply penetrate high-risk spots while cleaning up the look of the underside. Includes a free mid-year respray.
- The best protection for high-mileage trucks and commercial vehicles
- High performance, abrasion-resistant Black Coat & Protect on the underside
- Make your frame look like new again!
- Includes free mid-year spray
Additional Services
Vehicle Inspection
Buying a new-to-you vehicle and want a second opinion on the body? Bring it to us to check out for you, not a safety inspection but we can advise you on the condition and give you an idea of what’s going on.
Vehicle Body Wash
We can hand wash your vehicle to remove oil on the exterior of the vehicle. Another 30 minutes on the appointment time will be required.
Mid Year Touchups
Please note, some packages include touchups free of charge, applies 5-8 months following regular application.
No Drill Option
Prefer to not have your vehicle drilled? Our expertly trained staff can accommodate this for you, it takes us longer but we can give the same coverage you expect without any access holes required. Please allow up to 30 minutes extra per treatment.
Discounts
Military Discount
Get $15 off on any package
Group Discount




Rust Protection Process
Rust Inhibitor
There are hidden crevices and folds in the metal of your vehicle that moisture loves to collect in and from there, rust starts to develop. Rust Check Rust Inhibitor is a light oil-based liquid that we spray into all of the body panels using existing or drilled holes. It’s designed to “creep” throughout the panels and soak into the metal, preventing rust effectively from the inside, out.
Coat & Protect
Coat & Protect is a self-healing, non-drying undercarriage treatment. It’s thick like Vaseline so you get an instant layer of protection from your very first treatment. Say no to that thin, drippy stuff. No more “building it up” over the years. It improves the look of the undercarriage not to mention lubricates as it protects.

Our Philosophy: "Spray it like you own it." For over 22 years now we've been oiling cars and trucks with this philosophy and it's why our customers keep coming back year after year.
Come and experience the DDF difference.
- Doug Forth
Owner of DDF Automotive
***Please note, some prices may vary depending on the size of the vehicle, all prices shown do not include 13% HST.
Need A Free Quote?
Give us a call or fill out our quote request form, or book an appointment online.