AI for Diesel Mechanics | TMI Technology
Diesel Mechanics

You're good with engines. The business side is where you lose.

Independent diesel mechanics and small mobile repair operations are built on technical skill. The money leaks out on the business side - jobs billed wrong, hours not captured, customers not followed up. TMI builds the systems that turn a great mechanic into a great operation.

The Problem

Three ways diesel mechanics undercharge for their own work

Diesel mechanics are some of the most skilled tradespeople in the field. Most of them are running the administrative side of their business on a notepad and memory - which means they're consistently leaving money on the table without knowing it.

01

Hours That Never Get Billed

You spend 45 minutes diagnosing a problem before you start the repair. That time isn't on the invoice because you didn't write it down. Multiply that across every job in a week and you're working for free several hours every single day.

02

No System to Follow Up

A customer defers a repair because they can't afford it this week. You make a mental note. Six weeks later they've called someone else because the problem got worse and you never reached back out. That job was yours if you had a system to track it.

03

Job Costing Done After the Fact

You quote a job by feel, do the work, and find out at the end you bought $200 in parts you didn't charge for and spent two hours more than you estimated. Without job-level tracking, you can't improve your estimating and the same jobs stay unprofitable indefinitely.

What TMI Builds

Six systems. One operating layer.

Designed for the independent diesel mechanic or small mobile repair operation - simple enough to actually use in the field, complete enough to capture every dollar you earn.

01

Mobile Job Tracking

Start and stop time captured on a phone. Parts logged as they're used. All of it tied to the work order automatically. Billing is built by the time you close the job, not reconstructed from memory later.

02

Deferred Work Follow-Up

Every deferred repair logged against the customer and the unit. Automated follow-up at the right interval. Jobs that were walked away from come back to you instead of to the next mechanic who answers the phone.

03

Job Costing Reports

Actual hours versus estimated, actual parts cost versus charged - tracked per job and per job type. Over time you see exactly which jobs make money and which ones don't. Your estimates get sharper.

04

Customer Vehicle History

Every vehicle serviced has a digital history tied to your account. When a customer calls about the same truck they brought in eight months ago, you know exactly what you did and what you saw without searching through paper files.

05

Invoice and Payment Tracking

Invoices generated from completed work orders. Payment status tracked. Outstanding balances flagged. You stop losing money to slow-paying customers because you can see exactly who owes what.

06

Dispatch Coordination

For multi-tech operations, job assignments managed from a central dispatch board. The right tech sent to the right call based on location, skills, and current availability. No more coordinating by text message.

23%
Average revenue increase when all time and parts are captured systematically
44%
Of deferred repairs converted to booked jobs within 45 days with follow-up
8 hrs
Weekly time saved on paperwork, invoicing, and administrative tasks
$340
Average additional revenue captured per week from previously unbilled diagnostic time
Get Started

Build the operating system your diesel mechanics business needs.

Start with The Audit. One session to map your workflows, find the highest-leverage problems, and build your plan.