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Start your fleet maintenance program today.

About Us

United Fleet Services is a St. Louis-owned business providing dealer-quality maintenance and repair services across the St. Louis metropolitan area. We are a part of the Fleet Services International group of over 400 independent fleet dealerships throughout the United States, powered by Richard Petty and Petty’s Garage.

We started our company with a simple goal: to provide every business customer with dealer-quality fleet services, saving you time, money, increasing employee satisfaction, reducing business disruption, and increasing your profitability

Using our specially-equipped mobile service trucks, our first-class mechanics can perform around 80% of fleet services at your location and scheduled appointment time.

At our 3,500 square foot fully air-conditioned shop in Kirkwood, MO, we undertake larger projects and service/repair work that requires significant time, a vehicle lift or engine crane. We maintain a clean, safe, conditioned work environment for our technicians, in order that they can do their best work on your equipment. 

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Approved maintenance providers for most commercial vehicle leasing companies – we’ll handle all your work order management tasks with your lease company.

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All Services

On site fleet vehicle service

Fleet partners receive:
  • Scheduled PM Service
  • On-site Inspections & Repair
  • Friendly customer service
  • Competitive Labor Rates
  • Guaranteed Quality Parts
  • Email/SMS estimates and approvals
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Our Services

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Heavy-duty Truck Suspension Repair In St. Louis, Mo

At our truck suspension shop in St. Louis, MO we offer a wide range of suspension repair services, including air ride and leaf spring repairs. Our industry-certified mechanics are equipped with the latest tools and equipment to inspect and repair any suspension issues you may have, to the highest of standards.

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Preventive Maintenance Service Overview

Having a defined maintenance schedule for your fleet is essential to prolonging the useful life of vehicles and addressing any issues before they become bigger problems.

Inspection services
DOT Inspections

DOT inspections are required by the US Department of Transportation and can include vehicle, load, driver and documentation assessments.

Oil and fluid service
Oil and Fluid Services

Heavy-duty trucks, gas and diesel engines are oil-driven, meaning oil is utilized across most components.

Exhaust system
Exhaust System Repairs

The exhaust system in your truck plays a critical role not only for safety but also in minimizing the vehicle's environmental impact.

Transmission and clutch repair
Brake Repairs

Brake service is an essential part of vehicle maintenance. When it comes to operating a fleet

Alternator repair
Coolant System Service

An engine cooling system is designed to circulate a cooling medium (coolant) which absorbs heat from the engine and dissipates it through a heat exchanger

Truck inspection
Engine Repair, Overhaul, and Conversion

Whether it's light, medium, or heavy-duty engine repair or complete engine refurbishment, these elements are sometimes

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Transmission and Clutch Repair

Knowing the signs of transmission and clutch failure can save you from costly repairs and downtime.If you’re experiencing slipping gears, delayed engagement,

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Diagnostic and Electrical Services

We know that needing truck diagnostics and electric service is stressful. You want to know what’s wrong, and you want to get it fixed quickly.

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Driveline Repair

At United Fleet Services, we provide dependable and affordable driveline maintenance for your fleet vehicles.

We service most commerical vehicles and we therefore see a lot of diesel engines, but we are equally qualified to work on gasoline, propane and battery-electric vehicles.

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Get In Touch

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