77 Alexander Road #10-11 Billerica, MA 01821 Billerica is approximately 25 miles from Boston, MA; 40 miles from Manchester, NH and 45 miles from Worcester, MA.

Office hours are from 9AM-5PM Monday through Friday and 9AM-12PM on Saturday. Appointments can be booked Monday - Saturday and Sunday by request. Appointments start times are 8AM. If you prefer to have your vehicle back earlier than 5pm, please drop your vehicle off the evening before.

If you have an older vehicle with a lot of rust damage, feel free to call and schedule a time to have your vehicle looked at by one of our techs free of charge.

Details are important us, and we are definitely not one to rush the process. Most trucks start to finish, take about 4 hours to complete. The more custom the job, the more time is required. Our unique application process means the bed liner material dries and hardens in 3-5 seconds after leaving the gun. That means your truck is dry when it leaves the store and can see "light duty" service almost immediately, however in the interest of "protecting what you love", we recommend you refrain from "heavy use" for the first 24 hours. We do ask to keep the vehicle for up to 8 hours. If you drop off your vehicle at the evening before or at the time of your appointment, you will have your vehicle back at or before 5PM.

The list is endless. Almost anything you might want a thick, tough, durable coating on can be considered. From lifted trucks, to trailers, midsize commercial vehicles, ATV's or RV's---we've got you covered. Steel Guard Liner adheres to concrete, foam, wood, fiberglass, steel and other products found in every day life.

Yes, all of our Steel Guard Liners carry a Lifetime Warranty against warping, cracking, chipping, peeling or coming off your bed in any way.

Each undercoating service includes full vehicle wrap and protection, lift, removal of tires, wrapping of areas under the vehicle not meant to be undercoating, rust remediation and application of Waxoyl undercoating.

Undercoating service can be between 3-4 hours depending on prep time. We do ask to give us 6-8 hours with the vehicle as contingency time. Your appointment is same day service. If you drop off your vehicle the evening before your appointment or by or before 8AM the day of your appointment, your vehicle will be ready for pick-up by or before 5PM.

A Waxoyl Undercoating treatment will last the lifetime of the vehicle. No need for reapplications every few years like oil, epoxy and lanolin undercoating products out there. We do suggest coming in once a year for a complimentary check-up to see if touch-ups are needed. If needed, touch-ups costs start at $50 depending on the extent of touch-ups needed.

At SteelGuard Auto, we pride ourselves on a meticulous and thorough approach to rust protection that truly sets us apart. Our service begins with a detailed preparation where we carefully inspect your vehicle to identify any areas of existing rust. We then remove any flaking rust to ensure a clean surface. This is followed by our comprehensive coating process where we meticulously apply a protective layer to the entire undercarriage of your vehicle, ensuring every crevice is covered. This not only halts the progression of existing rust but also guards against future corrosion, effectively extending the life and performance of your vehicle. Trusting your vehicle to SteelGuard Auto means you are opting for unparalleled protection and longevity for your ride.

Yes, we offer a warranty that no further rust damage will form on your vehicle for the remainder of the vehicle's lifetime or your money back. In order to keep the warranty valid, yearly check-ups (at not cost) are required.

Yes, please.

Yes, we put the vehicle up on a lift, remove the tires and get inside the wheel wells, doors and any and every area that rust might form on your undercarriage. We wrap any party of your undercarriage that should not be undercoated.

Waxoyl’s hybrid formula includes active rust-inhibiting compounds that chemically interact with iron oxide (rust) to halt further oxidation. Here’s how it works from a scientific standpoint: Penetration & Encapsulation – Waxoyl is designed to seep into rusted surfaces, reaching areas that traditional coatings might miss. The wax-based formula forms a moisture-resistant seal, preventing oxygen and water—the two main catalysts for rust—from continuing the oxidation process. Rust Conversion – The hybrid chemical component in Waxoyl contains inhibitors that react with iron oxide (Fe₂O₃) and transform it into more stable iron complexes, such as iron tannates or phosphates, depending on the specific formula. This process effectively neutralizes the active rust, stopping it from spreading further. Hydrophobic Barrier – Once applied, Waxoyl creates a durable, waxy film that repels water and road salt, further preventing the electrochemical reaction necessary for rust to form. This long-lasting protection ensures that both treated and bare metal areas remain shielded from corrosion. By combining mechanical rust removal with Waxoyl’s chemical oxidation and protective sealing, Steel Guard ensures maximum rust prevention for your vehicle.