Keep Your Fleet Moving. We Handle the Rest.
Expert diesel mechanics and heavy equipment technicians serving Phoenix businesses. Mobile, on-site, and in-shop — whatever your operation needs.
What We Do
Mobile & In-Shop Service
Mobile & On-Site Service
Our mobile service units come to your location — fully equipped to diagnose and repair issues on-site so your fleet stays running.
- Emergency roadside assistance
- Fleet maintenance at your facility
- On-site diagnostics & repair
Full-Service Shop
Phoenix, AZ
In-Shop Repairs
Bring your equipment to our full-service Phoenix facility for comprehensive repairs, major overhauls, and detailed diagnostics.
- Engine & transmission overhauls
- State-of-the-art diagnostics
- Climate-controlled service bays
Our Process
From Call to Completion
Call or Request
Contact us by phone or submit a service request with details about your equipment.
Dispatch or Schedule
We dispatch a mobile technician to your location or schedule your shop visit.
Diagnose & Repair
Our experts diagnose the issue and complete the repair with quality parts.
Back to Work
Your equipment is returned ready to operate. Minimal downtime, maximum uptime.
The TES Difference
Service That Keeps You Running
We work with fleet operators, contractors, and owner-operators who can’t afford downtime. Our team brings specialized diesel and heavy equipment expertise directly to your operation — on-site or in our shop.
Call NowDiesel Specialists
Focused expertise in diesel engines, transmissions, and heavy machinery diagnostics.
Mobile & Shop
Fully equipped for on-site repair or in-facility service at our Phoenix shop.
Fleet Programs
Custom maintenance plans for commercial operators managing multiple vehicles.
Honest Diagnostics
No jargon, no surprises. We explain what needs to be done and why.
What Our Clients Say
Client Testimonials
See What Rescue Plumbing & Rooter Has to Say
Real feedback from a real client.
“Jonathan and his team are top-notch. I run a masonry business in town, and Jonathan has been my mechanic for years. I won't use anyone else in the Valley. He shows up on time and takes care of issues quickly. Highly recommend.”
Sam Nichols
Masonry Business Owner
“One of the best mechanics in Arizona. I bring all my work trucks and personal vehicles here for service and maintenance. You won't find this level of quality anywhere else in the state.”
Adam Barbour
Fleet Operator
See Our Work
Real Repairs in Action
Service Area
Phoenix & Surrounding Areas
We provide mobile on-site service and in-shop repairs throughout the Phoenix metro. Our mobile units are fully equipped for diagnostics and repair at your location.
FAQ
Common Questions
Need Diesel Service?
Serving Phoenix and surrounding areas with expert diesel and heavy equipment repair.