We Diagnose. We Don't Upsell Repairs.
Glass Box Diagnostics is a one-man mobile diagnostic service in Canyon Lake, TX. We find what's wrong with your car and hand you a report. What you do with it is your business.
The auto repair industry has a conflict of interest: the person diagnosing your car is the same person profiting from fixing it. That creates an incentive to find problems — real or not.
Glass Box removes that conflict. We don't have bays. We don't have parts inventory. We don't have service writers on commission. We have scan tools, oscilloscopes, and the training to use them.
We come to you, diagnose the problem, and hand you a detailed report with root cause, repair path, and cost estimates. Take it to any shop. Fix it yourself. Decide it's not worth fixing. All correct — because it's an informed decision.
Trent
Owner & Diagnostician
I spent years in shops and dealerships watching good technicians get pressured to upsell. A simple diagnosis turned into a $3,000 repair ticket. Not because the tech was dishonest — because the system demanded it.
I started Glass Box with one rule: our only product is the truth.