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Closed Now
Send us a Message 855-449-1785
Call our Experts | Change
Welcome to Autoplex Longmont — Boulder County’s full-service destination for truck accessories, window tinting, paint protection film, and custom interior upgrades. Conveniently located in Longmont at 105 3rd Ave, our shop serves drivers across the entire northern Front Range with expert guidance, premium brands, and professional installation.
From overlanders building out a rig for Rocky Mountain trails to contractors outfitting a work truck in Weld County, our team is equipped to handle it all under one roof — and backed by the Autoplex network across Colorado.
Address: 105 3rd Ave, Longmont, CO 80501
Phone: 303-684-0843
Hours: Monday – Friday: 8:00 AM – 5:00 PM | Saturday – Sunday: Closed
Communities Served: Longmont, Boulder, Berthoud, Erie, Firestone, Frederick, Mead, Lyons, Hygiene, Dacono, and surrounding Front Range communities.
Autoplex Longmont is one of our most fully-equipped Front Range locations. Whether you’re looking for truck bed protection, cabin comfort upgrades, or full exterior protection, we have the products and the team to get it done right.
Ready to protect your ride? Buy your packages online and our team will contact you to schedule your professional installation at your preferred Autoplex location.
$189.00
$159.00
(Installed)
New / Ceramic & Carbon Options
99% UV Rejection | Heat Reduction | Lifetime Warranty Our window tinting services go beyond looks. We use advanced ceramic and carbon films that keep your cabin cool in the summer and protect your skin from high-altitude sun exposure.
$399.00
$314.00
(Installed)
New / Self-Healing Technology
Impact Resistance | Hydrophobic Surface | 10-Year Warranty Defend your hood, bumper, and mirrors from Colorado’s notorious road debris. Our PPF is virtually invisible, self-heals from swirl marks, and features a high-gloss finish that never yellows.
We are the premier dealer for the “Big Three” in fiberglass and aluminum caps. Visit our lot to see these brands in person.
Aerodynamic styling and advanced glass integration.
Rugged engineering and reinforced structural integrity.
The industry’s strongest roofs for heavy-duty hauling and rooftop tents.
Secure your cargo with the right cover for your lifestyle — from everyday roll-ups to locking hard panels built for Colorado winters.
The #1 selling hard-folding cover.
Premium aluminum retractable covers with T-slot rails.
Solid one-piece covers for maximum security.
Transform your truck or SUV’s cabin with a custom leather interior installed right here in Longmont. We replace your factory cloth with premium automotive-grade leather — and can add comfort upgrades while your seats are already out.
Add heat, cooling, and power lumbar support while we have your seats out.
Complete your build with professional-grade exterior and utility accessories installed by our experienced team.
Rugged entrance steps from brands like TrailFX and Westin.
Secure storage for work and play.
Easy access to your entire truck bed.
Longmont sits at the crossroads of Boulder County, Weld County, and the northern Denver metro — and our shop is built to serve all of them. We know Boulder County drivers have specific demands: high-altitude UV exposure, gravel roads into the foothills, mountain snow in the passes, and a taste for both function and quality. We stock and install accordingly.
Autoplex Longmont is a full-service vehicle restyling location. We offer truck toppers, tonneau covers, bed accessories, spray-on bedliners, window tinting, paint protection film (PPF), Katzkin leather interior upgrades, heated and cooled seats, power lumbar support, side steps, suspension lift kits, toolboxes, and more. If you’re not sure whether we carry something, give us a call at 303-684-0843.
We are an authorized dealer for LEER, A.R.E., and SnugTop — three of the most trusted names in fiberglass and aluminum truck caps. We carry in-stock inventory and can special-order caps in a variety of configurations, colors, and glass packages to match your truck.
Yes. Window tinting is one of our most popular services. We install professional-grade tint films that reduce heat, block UV radiation, and add privacy — ideal for Colorado’s high-altitude sun exposure. We can tint trucks, SUVs, cars, and commercial vehicles. Call or stop in for a quote.
Paint protection film is a self-healing clear film applied to your vehicle’s painted surfaces to protect against rock chips, scratches, and road debris. It’s especially valuable for Colorado drivers who regularly travel on gravel mountain roads or highways with heavy truck traffic. Yes, we install PPF at our Longmont location.
Absolutely. We are an authorized Katzkin installer and carry a full selection of leather colors and material options. We can replace your factory cloth seating with premium automotive-grade leather, and add heated seats, cooled seats, or power lumbar support at the same time. Installation typically takes one to two days.
Most topper installations are completed in one to three hours, depending on the cap style and any additional accessories being installed at the same time. We recommend calling ahead to confirm availability and schedule a convenient drop-off time.
Walk-ins are always welcome during business hours, Monday through Friday from 8:00 AM to 5:00 PM. For installations or detailed product consultations, we recommend calling ahead at 303-684-0843 so we can make sure the right team member is available for you.
Our Longmont location serves the full Boulder County area, including Longmont, Boulder, Erie, Berthoud, Lyons, and Hygiene, as well as Weld County communities like Firestone, Frederick, Mead, and Dacono. We also draw customers from the northern Denver suburbs who prefer the less-congested drive up US-287 or I-25.
Yes. We apply spray-on bedliners that bond directly to your truck bed for a permanent, textured, and impact-resistant finish that won’t rattle, crack, or trap moisture under a drop-in liner. We can also spray wheel wells and other surfaces for added protection.
Yes. Autoplex has a dedicated fleet services program covering cargo management, van shelving, safety and visibility equipment, vehicle lighting, remote starters, and more. If you manage a fleet of trucks or vans in the Boulder County or northern Front Range area, contact our Longmont team or visit our Fleet page for more information.
