Your Machine Is Down. We Get It Running.
Mobile heavy equipment & diesel fleet repair across the Bay Area. Caterpillar, Peterbilt, Kenworth, John Deere — dealer-level diagnostics without the dealer wait or the dealer price. Every hour your iron sits is money on the ground. We get you back to work.
Brands we service
Heavy Equipment & Diesel Fleet Repair
From a no-start in the field to a full engine rebuild on the stand — if it runs on diesel and earns its keep, we service it. Click any service for details.
Engine & Powertrain
Diagnostics, in-frame and full rebuilds, head work, injectors, turbos, clutches and transmissions on CAT, Cummins, Detroit and more.
Learn more →Hydraulics
Cylinders, pumps, hoses, valves and leaks on dozers, loaders, excavators and backhoes. We chase the problem to the root, not the symptom.
Learn more →On-Site Diagnostics
We plug into the machine, read the codes and tell you straight what's wrong — no guessing, no upselling a rebuild when it's a $30 sensor.
Learn more →Fleet Maintenance
Keep your trucks and equipment compliant and running with scheduled preventative maintenance built around your job, not ours.
Learn more →Truck Repair: Peterbilt, Kenworth & More
On-highway diesel repair for owner-operators and fleets. We keep your loads moving and your trucks off the CHP radar.
Learn more →CARB Clean Truck Check
Emissions compliance testing done right. Plug in, pass, and stay legal — before D.O.T. puts you out of service.
Learn more →CARB Clean Truck Check, Handled
California's Clean Truck Check is mandatory for nearly every diesel truck over 14,000 lbs. Miss it and the fines stack fast — or D.O.T. parks your truck. We test on-site, get you a passing result, and keep you running.
- On-site emissions testing — we plug into the truck, no shop trip
- Fail it? We diagnose and repair the cause, then re-test
- Stay ahead of the semi-annual deadlines, not scrambling after
- Fleet pricing for multiple trucks at once
SERVICE
One test today is cheaper than one day parked. Get compliant before the notice comes — not after.
Work From the Shop & the Field
No stock photos. This is the actual equipment we tear down, rebuild and put back to work.
Dealer Skill. Mobile Speed. Fair Price.
We Come To You
Your machine doesn't move when it's down. We bring the shop to the job site or your yard, anywhere in the Bay Area, so you're not paying to tow dead iron.
Dealer-Trained, Not Dealer-Priced
Trained on the dealer side at the brands you run. You get that level of diagnosis and repair without the dealer's $300/hr ticket or two-week wait.
Straight Answers
We plug in, find the real problem, and tell you what it actually needs. No phantom rebuilds, no parts you don't need. If it's a $30 fix, it's a $30 fix.
We Speak Downtime
When a truck's down with a load on it, every hour burns money. We treat your emergency like the emergency it is — fast, direct, back to work.
Five-Star Reviews on Google
Real customers, real machines back to work. Read every review — or leave your own — on our Google profile.
"I can't recommend Samy enough. He has worked on several of our company vehicles and heavy duty machines and has always done an excellent job. The quality of his work is top-notch, communication is great, and he is dependable, professional, and easy to work with. Every job has been completed thoroughly and with a high level of attention to detail, giving us confidence that our vehicles are in good hands."
"My tractor 🚜 had not run since 2021 — sitting for five years with complicated issues. Lift pump, fuel tank, fuel pump — all needed help on my Perkins engine. All Mechanical (Sam) came out, diagnosed the issue, ordered the parts, and it started right up. I would recommend Sam for any job, big or small. Thank you All Mechanical!"
"Sammy, owner of All Mechanical, did an excellent job repairing a leaking hose on the Extendahoe of my Case 590SN backhoe loader. He was extremely knowledgeable and knew exactly how to safely and efficiently slide the Extendahoe off the boom in a short amount of time. He quoted a fair price, finished sooner than expected, and his work was clean, professional, and organized from start to finish. I would highly recommend All Mechanical to anyone needing heavy equipment repairs."
Machine Down? Let's Get It Running.
Call now for fast mobile service across the Bay Area — or request a quote online.
📞 Call (925) 858-8630