Commercial Truck Upfitting Services

Exterior full passenger side for this 2027 Kenworth T880 (Stock number: VJ243556)

WHY IT MATTERS

Why choose CSM Companies Upfit Services

Whether you operate a light-duty pickup or a heavy-duty vocational truck, our experienced technicians can install truck bodies, aluminum and steel flatbeds, dump bodies, toolboxes, ladder racks, safety equipment, camera systems, lighting, and other custom accessories.
Our capabilities extend beyond installations.

We perform trailer repairs, reefer repairs, cosmetic damage restoration, custom fabrication, and structural repairs for box trucks, dry vans, roll-off containers, livestock trailers, and more. From work-ready fleet vehicles to specialized vocational equipment, we deliver solutions designed to keep your vehicles productive and looking their best.

30+

Service locations across six states
6

States: WI, MI, TX, NE, FL, OH
100%

Skilled technicians, including OEM-trained PACCAR specialists
3-time

Kenworth Dealer of the Year Award Recipient

WHAT WE OFFER

Full-Service Upfit Capabilities

Aluminum and Steel Flatbeds Installation

Engineered for ultimate durability, our custom aluminum and steel flatbed installations handle your toughest payloads. Choose from gooseneck, platform, or heavy-duty structural designs tailored precisely to your operational demands.
Landscaper Dump Body Installation

Transform your haulers with high-performance dump body solutions designed for maximum volume and efficient unloading. From smooth-sided bodies to specialized grain and forestry setups, we equip your fleet to tackle any site condition.
Toolbox Installation

Keep your gear organized, secure, and ready at a moment’s notice with custom-fitted storage solutions. We install underbody, side-swing, top, and backpack toolboxes built to maximize space without compromising accessibility.
Safety Rack Installation

Protect your crew, cab, and rear window against shifting loads with safety racks. Built to withstand sudden stops and tough road conditions, our installations deliver essential peace of mind on every job.
Camera Systems & Any Lighting Installation

Enhance driver safety and round-the-clock visibility with integrated camera systems and high-durability LED lighting package installations. Minimize job-site accidents, eliminate blind spots, and keep your vehicles operating clearly in low-light conditions.
Single Line Automatic Greaser Systems Installation

Eliminate manual greasing downtime and extend chassis component life with automatic lubrication systems. Our precision installations route directly to every grease zerk on your truck, cutting long-term maintenance costs and keeping your fleet moving.
Trailer Repair & Fabrication

From cosmetic damage on dry vans and box trucks to complete structural repairs on reefers, containers, and specialized trailers, our certified fabrication team delivers full-service restoration to keep your entire setup road-ready.
Extensive Multi-Brand Vehicle Selection

Streamline your fleet acquisition by pairing your upfit directly with top commercial inventory. Browse new and pre-owned models across leading brands like Kenworth, Ram, GMC, Jeep, and Chrysler—all in one seamless location.

STELLAR CUSTOMER SUPPORT

One Partner for Vehicle Sales & Custom Upfitting

Find the right truck at one of our locations and let our expert team fully equip it to your exact specifications.

BENEFITS

Why Truck Owners Choose CSM Companies for Upfitting

Keeping Your Work Running Smoothly: Comprehensive Truck Solutions

Every working vehicle, big or small, is crucial. These are the assets that keep your business moving and money coming in. That’s why DFS is your dedicated, full-service partner, offering specialized maintenance and extensive equipment installation.

Protect Your Investment with Expert Maintenance

A strong maintenance plan prevents unexpected, costly breakdowns and maximizes your vehicle’s uptime. Our certified technicians use the latest diagnostic technology to find and fix issues accurately and on time.

Installation, Fabrication, and Repair Services

We don’t just maintain; we equip and repair almost anything that rolls. Our work includes:

FIND SERVICE NEAR YOU

Upfit Locations Nationwide

Dedicated Fleet Services – Janesville

3411 Bell St, Janesville, WI 53545, USA

(608) 743-9199

Schedule Service

FAQ

Frequently Asked Questions

Everything you need to know about upfitting with CSM. Don’t see your question? Contact your local upfitter location.

What is the Dedicated Fleet Services Upfit Center?

The Dedicated Fleet Services Upfit Center specializes in customizing commercial and vocational vehicles to meet the unique operational needs of fleet customers. Our experienced team installs a wide range of equipment, accessories, and vehicle modifications designed to improve safety, productivity, efficiency, and overall fleet performance.

What types of vehicles can be upfitted?

We upfit a wide range of commercial and vocational vehicles, including but not limited to:

· Flatbed Trucks

· Box Trucks

· Service Body Trucks

· Pickup Trucks

· Utility Vehicles

· Specialty Fleet Vehicles

· Dump Trucks

If your vehicle type is not listed, contact our team to discuss your specific application and upfitting requirements.

What industries do you support?

We proudly serve customers across a variety of industries, including:

· Utilities

· Telecommunications

· Construction

· HVAC

· Plumbing

· Electrical Services

· Delivery & Logistics

· Municipal and Government Fleets

Our team works closely with each customer to develop solutions tailored to the demands of their industry and daily operations.

What types of upfits are available?

We offer a comprehensive range of upfitting solutions, including:

· Frame Modifications

· Axle Installations

· Aluminum and Steel Flatbeds

· Service Bodies

· Landscape and Contractor Bodies

· Quad-Axle Dump Bodies

· Headache Racks and Toolboxes

· Automatic Greasing Systems

· Camera and Safety Systems

Whether you need a standardized fleet specification or a fully customized build, our team can deliver solutions designed to maximize vehicle performance and functionality.

Can you customize a vehicle based on our operational requirements?

Yes. We work directly with fleet managers, business owners, and key stakeholders to develop customized vehicle solutions that align with your specific operational needs, workflows, and fleet objectives.

How do I request an upfit?

Getting started is simple:

1. Contact your Dedicated Fleet Services representative.

2. Share your vehicle specifications and operational requirements.

3. Review recommended upfit options and pricing.

4. Approve the final configuration and project scope.

Our team will guide you through the process from initial consultation to final delivery.

Can changes be made after an order is submitted?

In many cases, changes can be accommodated after an order has been submitted. However, modifications may be limited based on the project’s stage of production. Additional costs and schedule adjustments may apply.

How long does an upfit typically take?

Project timelines vary depending on vehicle type, equipment availability, engineering requirements, and the complexity of the build. Your Dedicated Fleet Services representative will provide an estimated timeline during the planning phase and keep you informed throughout the process.