We Are Absolute Repair

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Absolute Repair proudly provides honest and expert heavy-duty diesel truck and bus repair from our shop in Des Moines, IA. Operators and fleet managers notice the difference of our team-oriented family of technicians when they trust their vehicles to our care. We work on all types of diesel vehicles and specialize in Cummins and Volvo-Mack engine repair.

Absolute Repair was started in 2014 when owner Peter Cooper recognized the demand for heavy truck and bus repair in Des Moines.  More than that, Peter was driven to provide a quality service that is unparalleled in the industry.  Today, the team at Absolute Repair is trusted and known to be the most knowledgeable and honest mechanics in the area.

This customer relationships focus starts with maintaining a state-of-the-art facility and investing in the most up-to-date diagnostic equipment and procedures. It’s completed with  smiles, handshakes and ultimately making a positive difference in the community.

Our Second Home

Located at 347 n 44th in Cumming IA, Absolute Repair has a brand new state-of-the-art 10,000 sq. ft. shop. This facility allows the team to work on big jobs.  The bigger the better!  In addition, the Absolute Repair Road Rescue service allows operators and fleet owners to have trusted and experienced technicians come to them! The entire team at Absolute Repair is committed to providing you with an unparalleled service experience!

Truck in shop at Absolute Repair

Our Heavy-Duty Diesel Mechanic Services

Mechanic doing bus repair at Absolute Repair

Bus Repair

Absolute Repair is trusted by transit and school bus drivers and fleet owners from all around the Cumming, IA area to provide the highest level of quality and service in the least amount of truck downtime—all at a great value. Our experienced and certified team of technicians will have your bus up and running faster than you thought possible, without compromising on quality and all with a friendly smile.

Mechanic doing repair of a heavy duty diesel truck at Absolute Repair

General Diesel Repair

With a state-of-the-art heavy-duty truck repair shop in Des Moines, Iowa, and a team of highly-trained diesel mechanics, Absolute Repair is Iowa's #1 choice for general diesel repair services.

Mechanic doing hydraulic service at Absolute Repair

Hydraulic Repair

Most heavy-duty diesel equipment relies on powerful hydraulics to operate. Your machine’s hydraulics systems are composed of cylinders, pumps, motors, and valves, all of which require preventative maintenance and repairs to keep them functioning properly. Absolute Repair in Des Moines, IA provides comprehensive hydraulic service. Reach out to us today for a fleet assessment and we’ll work with you to develop a program that works for your equipment and business.

Mobile Service for Trucks at Absolute Repair

Mobile Truck Repair

Absolute Repair provides mobile truck repair services throughout Des Moines, Iowa & the surrounding area, offering a 60-mile service radius and full-equipped mobile repair units.

Mechanic performing pm (Preventative Maintenance) service at Absolute Repair

Preventive Maintenance

At Absolute Repair in Des Moines, IA, our heavy-duty diesel mechanic team provides comprehensive preventive maintenance services for you heavy-duty vehicles and machinery. Get in touch today for service!

RV Repair Shop in Cumming, IA | Absolute Repair

RV Repair

There’s nothing quite like being on the road in your RV. So when it’s in need of repair, you need quick and qualified service that will get you back out enjoying the open air. Of course, regular RV maintenance and repairs make good sense from a safety standpoint, but they also maintain the value of your motorhome for years to come. At Absolute Repair in Cumming, IA., our certified mechanics are committed to getting your RV repair done quickly and correctly the first time. We understand how important it is for you to be able to rely on your RV to safely carry your family as their home away from home.

Emergency Roadside Service for Trucks at Absolute Repair

Roadside Assistance

When you call us for emergency roadside service in Des Moines, IA we’ll send out a fully equipped Road Rescue truck with an expert mobile mechanic to your location. For many common emergency roadside issues, this is a far better solution than having to wait for a tow truck.

Mechanic is doing truck wheel alignment at Absolute Repair

Wheel Alignment

Visit Absolute Repair at our shop in Des Moines, IA for trusted wheel alignment repair and maintenance services from expert diesel mechanics. We perform wheel alignment on all types of vehicles, from semi's and buses, to RV's and heavy machinery.

Our Heavy-Duty Truck Repair Services

Axle Repair Service in Cumming at Absolute Repair

Axle Repair

For top-rated axle repair and maintenance services for heavy-duty trucks & fleets in Des Moines, Iowa, trust the diesel mechanics at Absolute Repair to get your axle fixed and your truck back on the road.

Mechanic repairing brakes of a truck at Absolute Repair

Brake Repair

Absolute Repair provides experienced, professional brake repair services for heavy-duty trucks & fleets in the Des Moines, Iowa area.

Mechanic repairing coolant system of truck at Absolute Repair

Coolant System Repair

One of the primary functions of coolant is to regulate heat within the cylinder head and engine block of your diesel engine. At Absolute Repair, we advise customers on industry best practices to maintain their coolant systems and prolong the life of their heavy-duty vehicles.

Mechanic performing DOT Inspections in Cumming at Absolute Repair

DOT Inspection

Absolute Repair provides experienced and comprehensive D.O.T inspections for both Federal and State from our shop in Des Moines, IA.

Mechanic performing diesel engine diagnostics at Absolute Repair

Diagnostics & Electrical Repair

We diagnose and service all makes and models of heavy-duty diesel trucks and work closely with manufacturers to overcome challenges and develop comprehensive solutions that address our customer's needs. During your heavy-duty truck inspection, one of our highly skilled mechanics will perform a computerized scan to identify any problems.

Truck Driveline Repair Service at Absolute Repair

Driveline Repair

You can trust the driveline repair and maintenance services at Absolute Repair to get your vehicle where it needs to be.

Mechanic performing EGR & DPF cleaning & repair services at Absolute Repair


Trust Absolute Repair with your heavy-duty vehicles EGR & DPF services in Des Moines, Iowa. Our diesel mechanic team has the experience and expertise to handle all kinds of EGR & DPF maintenance.

Mechanic repairing truck engine at Absolute Repair

Engine Repair, Overhaul & Conversion

With all the latest tools and tech, Absolute Repair are able to provide extensive diesel engine repair services, including overhaul, conversion & maintenance, from our shop in Des Moines, IA.

Mechanic performing truck exhaust repair at Absolute Repair

Exhaust System Repair

Absolute Repair proudly provides industry-leading exhaust system repair services for heavy-duty trucks & fleets from our shop in Des Moines, Iowa.

Mechanic changing truck oil at Absolute Repair

Express Lube

Our diesel mechanic team provides top-rated express lube services for heavy-duty trucks & equipment in Des Moines, Iowa.

Mechanic doing AC repair of the truck at Absolute Repair

HVAC System Repair

Absolute Repair is Des Moines' go-to shop for a wide range of HVAC system repair services for your heavy-duty truck or fleet.

Mechanic changing engine oil of the truck at Absolute Repair

Oil & Fluid

We provide comprehensive oil & fluid services for all types of heavy-duty vehicles from our shop in Des Moines, IA.

Truck Performance Service at Absolute Repair

Performance Tuning

We provide comprehensive performance tuning services for heavy-duty vehicles, including ECM programming, horsepower & towing enhancers, performance exhaust & air filters, & specialized sensor gauges. Contact us for service!

Mechanic repairing suspension of a truck at Absolute Repair

Suspension Repair

Absolute Repair are Des Moines, Iowa's go-to shop for heavy-duty suspension repair and maintenance services for all types of heavy-duty vehicles. Get in touch today!

Mechanic repairing truck tire at Absolute Repair

Tire Repair

Robust tire repair services for heavy-duty vehicles in Des Moines, IA. Visit our full-service truck repair shop or utilize our mobile service units for expert tire repair and maintenance services.

Mechanic performing truck transmission repair service at Absolute Repair

Transmission & Clutch Repair

Absolute Repair has the latest tools & tech to perform a wide range of transmission repair & maintenance services for all types of heavy-duty vehicles.

What Our Valued Customers Have to say about Us

"I had all 4 drive tires replaced on my motorhome recently at Absolute Repair.  The service was great.  They had my tires in their shop the day after I contacted them.  The service was scheduled and completed in the same week."
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Shawn Golly

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"Had truck in for starter install due to bolts getting stripped.  They did a great job getting it fixed and working with Lori was a great experience.  These guys know diesels."
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Samuel Shimp

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"I have used Absolute Repair for over 2 years and they have always been excellent. Our trucks sometimes need to be serviced and I feel confident that every time I bring it to them that they will get the job done."
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Alice Owens

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"Went in for a DOT inspection on my truck and trailer. They got on it super fast and didn't try to sell me any repairs that didn't need to be done as you'll find at many shops. The workers were friendly and courteous."
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Becky Black

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"First time customer and I am impressed. They were very efficient. I had an overhaul done to my truck and they had it ready in 1 week. Their shop is clean and organized as well."
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Hannah Coleman

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"Efficient, treated with respect. Nice lounge to wait since I didn’t have a ride. Did a great job on my RV."
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Christie Stoner

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Mechanic working at the shop desk

Heavy-Duty Truck Parts Inventory

We service all makes and models of heavy-duty diesel trucks and equipment and are trusted by transit and school bus operators and fleet owners.  Our quick and reliable service demands that we continue to grown and maintain our robust parts inventory and supplier relationships so that we can provide a large selection of parts to service almost any heavy-duty need.

Diesel Laptop Training

We at Absolute Repair have partnered with Diesel Laptops to offer high-quality training on their sophisticated diagnostic equipment.  At Absolute Repair, we pride ourselves on being knowledgeable and honest, and as such, you can feel confident that your technicians will receive excellent training.

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Diagnostic testing at shop at Absolute Repair

Join the Absolute Repair Team

Tired of just being a number at the dealership? Come work for our team-oriented family at Absolute Repair.  We know that you work hard, which is why we work hard to appreciate our team.  We frequently host team building events, celebrate with team meals and provide paid vacation, paid holidays, health insurance and a retirement plan.

Absolute Repair team party

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Contact Us

Absolute Repair provides top-rated heavy-duty truck repair services to Des Moines & the surrounding area. Based in Cumming, we provide a 60-mile mobile service radius. Get in touch today to schedule service!

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