STEP 01Inspect, Lift, and Prep
Your vehicle goes up on the lift for a full underbody inspection. We clean and degrease the underside, treat any existing surface oxidation, and mask off all sensitive components (exhaust, brake lines, sensors).
Undercoating · Peoria, IL
Protection for the parts of your vehicle you never see.
Rust starts underneath. We coat the underside of your vehicle to protect it from salt, moisture, and road debris before they ever become a problem.
113+
5-Star Google Reviews
EST. 2023
Peoria Heights, IL
What is undercoating?
Most rust starts where you can't see it.
The underside of your vehicle takes more abuse than any other surface. Road salt in winter, water and mud year-round, gravel and debris kicked up at highway speed. Manufacturers build vehicles to handle this, but most factory protection wears down over the first few years of ownership.
Undercoating adds a durable, non-tar-based protective layer to the frame, suspension components, wheel wells, and underbody. Salt and moisture can't reach the metal. Existing surface oxidation gets sealed before it spreads. The result is a vehicle that holds its value longer and doesn't develop the kind of frame rust that ends a truck's service life.
The earlier in a vehicle's life you do this, the better it works. A brand-new truck has no rust to deal with, so the coating goes straight onto clean metal and locks in protection from day one. An older vehicle with surface oxidation can still benefit, but we'll inspect the underside and let you know honestly whether the job is worth doing.
This isn't a service for everyone. If you live in a garage-kept weekend vehicle, you probably don't need it. If you drive through Illinois winters, it pays for itself.
Who it's for
Built for drivers who use their vehicles year-round.
- Truck owners. Especially if you're hauling, towing, or driving on gravel.
- Daily drivers. Year-round commuting in central Illinois means winter salt exposure every season.
- New vehicles. The best time to undercoat is before any corrosion starts.
- Older vehicles with light surface oxidation. We can clean, treat, and seal before it gets worse.
Our process
How we coat your underbody.
Three steps, every job. No shortcuts on prep, no spray-and-go.
STEP 01STEP 02Apply Coating
Premium non-tar undercoating applied in a controlled pattern to the frame, suspension components, wheel wells, and underbody panels. Every protected surface coated by hand, not over-sprayed.
STEP 03Cure and Walk-Through
The coating cures fully before your vehicle comes off the lift. We walk you through what was coated, send photos for your records, and you drive away with the underbody sealed against salt, moisture, and road debris.
What's included
Every undercoating job covers:
Same checklist on every vehicle. Nothing skipped, nothing optional.
- Full underbody inspection
- Pre-treatment of any existing surface oxidation
- Masking of sensitive components
- Application to frame, suspension, wheel wells, and underbody panels
- Cure time before release
- Walk-through with photos at pickup
Undercoating packages
Coverage for the way you use your vehicle.
Choose the level of protection that fits your vehicle, how you drive, and where you park it.
Package 1
Standard Undercoating
Full underbody protection against road salt, moisture, and debris. Ideal for daily drivers and trucks that need solid winter-season protection.
Includes
- Underbody inspection
- Frame, suspension, and underbody coating
- Component masking
- Cure and walk-through
Package 2
Complete Undercoating
Maximum coverage including wheel wells, cavities, and accessible inner panels. Recommended for new vehicles, year-round drivers, and anyone protecting a long-term investment.
Includes
- Everything in Standard
- Wheel well lining
- Cavity wax in accessible body cavities
- Enhanced edge sealing on seams and welds
- Annual re-inspection included
Why drivers choose us
Undercoating done the way it should be.
Real prep, not a quick spray. The coating performs because the surface is clean.
The right product. Built for the long haul, not cheap tar-based sprays.
No sensitive components hit. Brake lines, exhaust, and sensors masked off.
Photos at pickup. You see what we did and where we did it.
What our clients say
Real reviews from real Peoria drivers.
5.0
BASED ON VERIFIED GOOGLE REVIEWS
CLIENT TESTIMONIAL
Video Testimonial #1 - O'Connor Detailing LLC of Peoria
CLIENT TESTIMONIAL
Client Testimonial - O'Connor Detailing LLC of Peoria
CLIENT TESTIMONIAL
BLACK FRIDAY Ceramic Coating Testimonial - O'Connor Detailing Ltd of Peoria
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Suzanne W.
12 June 2025 · Detail service
This was my first time using O'Connor's detailing services, and I am beyond impressed! From start to finish, the attention to detail was incredible — my car looks brand new again. The team was professional, thorough, and clearly takes pride in their work. I'll absolutely be coming back and recommending them to anyone looking for top-tier car care.
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Dorie N.
08 May 2025 · Paint correction + Ceramic
There were scratches and swirl marks on the black paint. When he was finished applying paint correction and ceramic coating, they were gone. My vehicle now has an outstanding shine! I highly recommend his services and will be a returning customer.
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Ryan S.
15 May 2024 · Paint correction + Ceramic
O'Connor detailing did an exceptional job detailing, paint correcting and ceramic coating my vehicle! Their attention to detail was outstanding, and the final result exceeded my expectations. The team went above and beyond to ensure that my car looked its absolute best. Best in the business!
Be our next five-star review.
Undercoating FAQUndercoating,
Undercoating,
answered.
If your question isn't here, just ask. We'd rather spend ten minutes on the phone than have you guess.
Call (309) 229-4277A properly applied undercoating from O'Connor will protect your vehicle for years. We'll talk through expected lifespan and recommended re-inspection intervals when you request a quote.
Service areas
Undercoating for trucks and daily drivers across Central Illinois.
Our shop sits at 4716 N Ellen Ct in Peoria Heights, IL, minutes off Route 6 and easily reachable from anywhere in the Peoria metro area.
Our primary service area covers the city of Peoria and surrounding neighborhoods, including downtown, the Illinois River waterfront, and North Peoria (zip codes 61602, 61603, 61604, 61605, 61606, 61614, 61615), along with Peoria Heights (61616).
We regularly undercoat trucks, SUVs, and daily drivers for clients across Dunlap, East Peoria, Morton, Washington, Chillicothe, Edwards, Germantown Hills, Metamora, Eureka, and Roanoke. Outside this area? Give us a call. We've had clients drive in from the Bloomington area and beyond, especially before their first Illinois winter. If you're driving year-round through salt and slush, the trip pays for itself.
The shop
4716 N Ellen Ct, Peoria Heights, IL 61616
Ready to protect the underside?
Let's talk about your vehicle.
Tell us the year, make, model, and how you drive it. We'll get back to you with a quote and an honest recommendation.
113+
5-STAR GOOGLE REVIEWS
EST. 2023
PEORIA HEIGHTS, IL