OBSIDIANAUTO

Undercoating & Rustproofing in Calgary — From $899, 4.9★ (705+ Reviews)

Undercoating Calgary in Calgary — Obsidian Auto
Rust Defence.

Calgary's ultimate defense against salt and rust.

705+
4x Award Winner
Book NowCall 587 323 3222
Service Overview

Undercoating in Calgary protects against magnesium chloride road brine: choose rubberized undercoating (5-year warranty) or the $899 Complete Defense package with cavity-wax rust inhibitor (lifetime warranty). Calgary roads are sprayed with liquid salt that eats your frame and brake lines — our undercoating forms an impenetrable barrier against the brine, protecting your investment.

Satisfaction Guaranteed
  • Prevent frame corrosion
  • Maximize resale value
  • Reduce road noise
  • Seal electrical components
  • Protect brake lines
  • Peace of mind
Key Features

Why Choose This Service

Rubberized Barrier

Tough, flexible coating that resists road debris and salt.

Cavity Wax

Creeping wax injected into doors and rockers to stop internal rust.

Salt Neutralizer

Chemical pre-wash to remove existing salt before coating.

5-Year to Lifetime Warranty

Long-term peace of mind for your vehicle's structural integrity — 5-year on Standard, Lifetime on Complete Defense.

Protection Packages

Undercoating Cost Calgary

Undercoating in Calgary starts at $599; our Complete Defense package — rubberized undercoating plus lifetime-warranty cavity-wax rustproofing — starts at $899. Select your vehicle size to see your price.

Standard Undercoating

Durable rubberized barrier for undercarriage frame & components.

Undercarriage Wash & Prep
Rubberized Undercoating Spray
Wheel Well Protection
Frame Rail Coverage
5-Year Warranty

Ideal For

City drivers, leased vehicles

$599

Best Value

Complete Defense

The ultimate package. Combines hard undercoating with creeping rustproofing oil.

Everything in Standard
Cavity Wax Injection (Doors, Hood, Trunk)
Rocker Panel Internal Spray
Lifetime Warranty

Ideal For

Trucks, SUVs, Long-term owners

$899

Sensor-safe & EV-safe application · Free underbody inspection · 5-Year warranty on Standard, Lifetime warranty on Complete Defense

Available Add-Ons

Rust Inhibitor Oil Application

Premium oil-based rust protection

Recommended for vehicles 5+ years old with existing surface rust

Older vehicles needing extra protection

From $149
Bundle & Save

Combine Services. Save More.

These bundles are curated specifically for Calgary drivers. Protect against the threats you actually face — not generic upsells.

Salt-Proof Your Investment

Winter Fortress

Calgary's liquid salt (Magnesium Chloride) eats through frames, brake lines, AND paint. This package protects from above and below — rubberized undercoating underneath, PPF on the most chip-prone panels.

  • Complete Undercoating Package
  • PPF Rocker Panels & Door Edges
  • Wheel Well Protection
  • Cavity Wax Injection
Bundle Price
From $1,199
Save $350+
No Credit Card Required
Free Consultation
Price Lock Guarantee

Protect Your Vehicle from Calgary Salt

Get a custom undercoating quote — pricing depends on vehicle size and existing rust.

Book NowDetailing Services
The Threat

The Silent Killer.

The threat in Calgary isn't snow — it's the chemical brine. The city sprays magnesium chloride that stays wet and corrosive even on dry days, and chinook freeze-thaw cycles pump that salt deep into frame seams. It attacks your vehicle's most vital structural components from the inside out, long before you ever see surface rust.

Frame Corrosion

Structural integrity weakens as rust eats through steel frames and suspension components.

Electrical Failure

Salt brine wicks into wiring harnesses, causing shorts and expensive sensor failures.

Resale Plummet

A rusty undercarriage is the #1 dealbreaker for buyers. Lose thousands in value instantly.

The Shield

Comprehensive coverage against salt.

Close-up of cured black rubberized undercoating forming a rust barrier on a vehicle underbody in Calgary

Barrier Protection

Impenetrable rubberized finish.

Technician spraying black rubberized rust-proof undercoating onto truck frame rails on a hoist in Calgary

Frame Rail Coverage

Every rail and seam coated.

Professional undercoating application in progress with even satin coverage on a vehicle underbody in Calgary

Professional Application

Precision spraying.

Undercoating vs Rustproofing

Undercoating vs Rustproofing in Calgary

They're not the same thing — and Calgary's salt attacks from both directions. Undercoating shields the exposed underbody; rustproofing (cavity wax / creeping oil) protects the enclosed cavities where rust actually begins. Our Complete Defense package combines both.

Where it goes
Rubberized Undercoating
Exposed underbody — frame rails, floor pan, wheel wells
Cavity-Wax Rustproofing
Inside enclosed cavities — doors, rockers, frame interiors
What it stops
Rubberized Undercoating
Salt brine, moisture & road debris hitting bare steel
Cavity-Wax Rustproofing
Rust that starts inside cavities (the most common failure point)
Texture
Rubberized Undercoating
Thick rubberized hard barrier
Cavity-Wax Rustproofing
Thin creeping oil / cavity wax that self-heals
Reapplication
Rubberized Undercoating
Lasts years — minimal upkeep
Cavity-Wax Rustproofing
Refresh annually before winter
Included in
Rubberized Undercoating
Standard Undercoating (5-Year Warranty)
Cavity-Wax Rustproofing
Complete Defense (Lifetime Warranty)

Stacking winter defense? A ceramic coating repels salt on your paint while undercoating protects the frame beneath.

Smart Investment

Investment vs. Cost

Fixing deep rust issues often involves replacing subframes, brake lines, or entire body panels. Protection is a fraction of the repair cost.

Avg. Rust Repair Cost$3,500+
Complete Defense Package$899

$2,600+

Potential Savings

Trucks & Fleets

Truck & Fleet Undercoating in Calgary

Trucks and work vehicles take the worst of Calgary's winters — more exposed frame, brake lines, and underbody panels collecting magnesium-chloride brine off Deerfoot, Stoney Trail, and the gravel highways out to job sites. Our rubberized undercoating and cavity-wax rust inhibitor are built for that abuse, sealing the frame rails, rockers, and wheel wells where corrosion starts on a half-ton or a heavy-duty diesel. Larger trucks use more product and labour, which is why their pricing sits above the compact-car floor — we confirm the exact figure at inspection.

Running a fleet? We offer scheduled fleet undercoating and rust-proofing for contractors, trades, and delivery operators across Calgary, Airdrie, Cochrane, and Okotoks — protecting resale value and keeping vehicles out of the body shop. Ask about multi-vehicle scheduling when you request a fleet quote.

FAQ

Undercoating FAQs

Straight answers on rust protection, cost, warranties, and EV safety in Calgary.

Undercoating at Obsidian Auto Calgary starts at $599 for a coupe or sedan and runs to $799 for larger SUVs and trucks. Our most popular option, the Complete Defense package — rubberized undercoating plus cavity-wax rust inhibitor and a lifetime warranty — starts at $899. Standalone rust-inhibitor oil application starts at $399. Final pricing depends on vehicle size and any existing surface rust, confirmed at inspection. We're rated 4.9 stars across 705+ reviews.
Yes — Calgary is one of the harshest rust environments in Canada. The city sprays magnesium chloride (liquid salt brine) that stays wet and chemically active even on dry winter days, and chinook freeze-thaw cycles drive that brine deep into frame seams, brake lines, and suspension components. Unprotected undercarriages corrode fast, costing thousands in repairs and gutting resale value. Professional undercoating forms a barrier the brine can't reach the bare steel through.
Undercoating is a thick, rubberized barrier sprayed onto the exposed underbody — frame rails, floor pans, wheel wells — to block salt, moisture, and road debris from reaching the steel. Rustproofing (also called cavity wax or rust-inhibitor oil) is a thinner, creeping product injected inside enclosed cavities like doors, rocker panels, and frame rails, where rust actually starts from the inside out. They protect different areas, which is why our Complete Defense package combines both for full coverage.
Our rubberized hard undercoating is durable and lasts for years without reapplication. The creeping oil and cavity-wax inhibitors, however, are designed to stay active and self-heal minor abrasions, so they should be inspected and refreshed annually — ideally before each winter. We include this in your maintenance: the Standard package carries a 5-year warranty, and the Complete Defense package carries a lifetime warranty with annual inspections.
Absolutely. EVs carry a heavy battery pack and exposed high-voltage cabling under the floor, where Calgary road brine causes corrosion and costly sensor or connector failures — and our coatings are sensor- and EV-safe. On used cars, undercoating is one of the highest-ROI protections you can buy: it stops existing surface rust from spreading and preserves resale value. For older vehicles with surface rust already forming, we add a penetrating rust-inhibitor oil before sealing.
No. In Canada, a dealer cannot void your factory mechanical warranty simply for applying third-party rust protection, unless they can prove the product directly caused a specific failure — which is extremely rare with professional application. Our undercoating and cavity wax are sensor-safe, EV-safe, and applied away from components that require clearance, keeping your factory coverage fully intact.
Yes. We mask off and avoid oxygen sensors, exhaust components, driveline, and brake rotors, and use products formulated to be safe around the electronics, high-voltage cabling, and battery enclosures found on modern hybrids and EVs. This precise, hand-masked application is the difference between professional undercoating and a cheap blanket spray that gums up sensors or bakes onto hot exhaust.
Summer or early fall is ideal — dry roads and warm metal give the coating the best possible bond before winter brine season begins. That said, we can undercoat year-round: in winter we run a thorough high-pressure hot wash and full drying cycle in our heated Calgary shop first, so the surface is clean and dry before any product is applied.
Yes, as a secondary benefit. The rubberized barrier dampens vibration and road noise transmitted through the floor pan and wheel wells, so many clients notice a quieter cabin after application — especially on trucks and SUVs with large exposed underbody panels.

Complete winter protection package:

Paint Protection FilmCeramic CoatingWindow Tinting

Beat the brine before winter — book your undercoating today.

Book Rust Protection

Free underbody inspection · Lifetime warranty available · 705+ 4.9-star reviews

Last Updated: May 2026

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Perfection.

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Friday Closed

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Obsidian Auto

4.9 (705+)

#3 - 239 61 Ave SE,Calgary AB T2H 0R4

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