Servicing Diesel Engines With Excellence & Passion

A1 Fleet Service provides premium diesel service, expertise, and performance that helps to keep your business running on all cylinders. 

We Are The Best Diesel Mechanic Shop In Houston

We like to say that our work speaks for itself and our reputation has brought the largest names in the logistics industry to our front door.

We provide fleet management services to the largest corporations and small business owners. We earn the loyalty of our clients and our reputation demonstrates our committment our commitment to providing a quality service you can depend on. 

24/7 Mobile Diesel Repair

We will dispatch our mechanics to your exact location to help repair your vehicle on-site. We can also tow your 18 wheeler to our facility for repairs if needed.

Advanced Diagnostic Technology

We utilize the latest diagnostic repair technology to quickly identify problems with your diesel engine. By gather diagnostic data quickly, we are able to initiate repairs faster than our competitors and significantly reduce your downtime.

Specializes In Fleet Services

Eliminate vehicle downtime by taking a proactive approach in solving the problem before it happens. By enrolling in our maintenance program, we ensure that your entire fleet of vehicles receive all of the manufacturer recommended services, inspections and parts replacements in our facilities.

ASE Certified Diesel Mechanics

ASE certifications represent a high level of competency and are considered the standard for excellence in the automotive repair and service industry. We take pride in our knowledge we've gained over the years and it has helped us to offer a level of service that is second to none.

Excellent Communication & Experience

Having access to a team of experienced mechanics is essential to keeping your fleet of trucks and trailers serviced and on the roads. Our professional knowledge allows us to promptly and efficiently fix your mechanical issues so you can get back to making profit quickly.

Businesses Served
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Years Of Experience
Diesel Engines Repaired

Diesel Repair & Maintenance

We have all of your service and diesel repair needs covered from start to finish. Our team of experienced mechanics will have your truck back on the road quickly with the assurance that the job was done right using the best equipment and the highest quality parts to service your vehicle.  

Diesel Repair

Our certified technicians have the experience needed to swiftly diagnose any mechanical problem and quickly fix it so you can promptly get your vehicle on the road.

Tire Replacement

New tires provide better breaking, improves handling and provides your truck a better grip on the road while driving in inclement weather.

Oil, Fluids & Lubricants

We will perform a 19-point complementary inspection as we change the vital lubricants your diesel engine needs to perform at an optimal level.

24 Hour Roadside Assistance

We work around the clock to provide you with mobile diesel repairs as our mechanics will come to you in your time of need.

Trailer Repair

We Specialize in repairing common needs such as bodywork or suspension repair. We'll get the job done right.

Transmission Service

Having trouble shifting gears, experiencing grinding noises? You may be in need of repairs or replacing lost transmission fluid. We can help with that.

Lift Gate Repair

Having problems with your lift and rail gate? We have an experienced team that can help fix your issue.

DOT Inspection

We ensure that your commercial truck is operating safely on the road and under compliance.

Fleet Maintenance

We have an impeccable performance record providing routine maintenance for our corporate clients. Let us keep your fleet vehicles in peak condition.

Brake Repair

We will inspect your brake system and recommend any needed maintenance, repairs or part replacement so you can drive with peace of mind.

Diesel A/C & Heating Repair

Having issues with your heating and cooling systems? Not to worry, we'll diagnose the problem and provide a prompt solution.

Electrical System Repair

Malfunctioning glow plugs, dead batteries and fuel pump failure are some of the common culprits causing breakdown. No matter the issue, we got you covered.

Join our World Class Fleet Maintenance Program

A1 Fleet service is well known for providing maintenance and repair services for the largest logistics companies in the nation. Our diesel repair services are exceptional and timely, making us the preferred mechanic by our customers. 

Connect With Our Mechanics Today!


7425 E. Mount Houston Rd
Houston, TX 77050


(713) 505-3379


Open Hours

Monday-Saturday 8 am - 6pm

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