General Diesel Repair in Seguin, TX

General Diesel Repair in Seguin, TX

Need a one-stop shop for all your diesel repair needs? H&H Diesel Service in Seguin, TX offers full-service general diesel repair for trucks, equipment, and fleets. Whether you’re dealing with a mystery fault code or a major failure, our team is equipped to fix it—fast.

Our general diesel repair services include:

• Engine, transmission, and driveline diagnostics
• Electrical and starting system repairs
• Suspension and steering repairs
• Brake systems and air system repairs
• Exhaust and aftertreatment system service
• Fuel system diagnostics and injector repair
• Oil, fluid, and filter services
• Full bumper-to-bumper inspections

From light-duty work trucks to Class 8 haulers and off-road equipment, we service it all—with integrity and precision.

Experience the H&H Difference

Certified, Versatile Diesel Techs: Our team is certified in everything from PACCAR engines to advanced electrical diagnostics—no guessing, just skilled repair.

Quick Service, No Waitlist Headaches: Our 6-bay facility and 8 skilled techs allow us to take on single repairs or entire fleet jobs quickly and efficiently.

Mobile Repairs: Can’t make it to the shop? We offer dependable roadside assistance and scheduled mobile repairs to a 25-mile radius of Seguin, TX.

Straight Talk, No Surprises: We diagnose, explain, and repair the issue with transparency—no pressure, no overselling, just real solutions.

Backed By Warranty: Every job is covered by a 30-day workmanship warranty, plus manufacturer coverage on parts. Because your trust is earned—not assumed.

Contact Us About Diesel Repair Now: Call 210-332-5821!

If your truck or diesel equipment needs service, call H&H Diesel Service at 210-332-5821. We’ll diagnose the issue and fix it right the first time—fast, fair, and built to last.

FAQs

What Areas Do You Serve For General Diesel Repair?

We’re located at 7310 I-H 10 West, Seguin, TX 78155, near the I-10 intersection. We also proudly serve San Antonio, TX; Lockhart, TX; Luling, TX; New Braunfels, TX; San Marcos, TX; Cibolo, TX; Schertz, TX; Marion, TX; McQueeney, TX; Geronimo, TX; New Berlin, TX; Santa Clara, TX; and Lake Dunlap, TX.

What Types of Diesel Vehicles Do You Work On?

We repair all types of diesel trucks and equipment—light, medium, and heavy-duty. That includes pickups, semis, RVs, buses, and construction equipment.

How Can I Tell What’s Wrong With My Diesel Engine?

Common signs include hard starts, smoke, power loss, and warning lights. Our diagnostic tools quickly pinpoint issues so we can fix them before they become expensive problems.

How Can I Get Diesel Repair?

Just call 210-332-5821 today to schedule your diesel service at H&H Diesel Service. We’ll take care of your truck, your timeline, and your bottom line—guaranteed.