A Mechanic First.
A Business Second.
Fire Truck Repairs is owned and operated by Nick Zimmerman — 25+ years on heavy diesels and apparatus, now running mobile across the mid-Atlantic.
The story most diesel mechanics tell is the same — started young, learned on whatever came through the door, ended up specializing. The story here is the same, with one difference: when the work shifted toward fire apparatus, I stayed in that lane on purpose. Fire trucks aren't “diesel work plus a pump.” They're their own discipline, and most generalist diesel shops never get good at them because they don't see enough of them.
25+ years on heavy diesels.
Started in the late 1990s on over-the-road and vocational diesels. Cummins, Detroit Series 60, CAT, Mack — back when injection systems were mostly mechanical and a tech could fix things in a parking lot with a few tools and a knowledge of how the engine actually worked. Worked through the transition to electronic engines, then through emissions controls — EGR, DPF, DEF, SCR — as the industry changed.
The shift to fire apparatus.
Started picking up apparatus work years ago — first as a sub for a local department's regular mechanic, then for combination and volunteer departments across Schuylkill, Carbon, and Luzerne counties, then further out as word got around. The thing that kept me in it was the same thing that kept me out of the dealer-shop world: chiefs don't want excuses, they want the rig back in service. That fits the way I work.
Why mobile.
A fire truck sitting in a dealer's parking lot doesn't help anybody. Departments that lose their first-out engine for two weeks lose response coverage they can't replace. So the model is simple: bring the shop to the apparatus, do most of the work in your bay, schedule the rest around your call coverage. Inside 100 miles of Lansford, that's almost always faster, cheaper, and better than the alternative.
What I won't do.
Pretend to be something I'm not. Structural aerial work goes to specialists who do NDT. Major warranty engine rebuilds go to authorized OEM shops. Fire pump acceptance testing (the original certification at delivery) goes to the manufacturer. Honest scope is more useful than a salesperson pitching the biggest invoice.
What you can count on.
Certified diesel mechanic
25+ years on heavy-duty diesels. Real factory diagnostic tools.
Honest scope
What needs to be fixed now, what can wait, what isn't worth touching.
Mobile-first
Most repairs happen in your bay. Shop scope only when it has to be.
Apparatus-specific
Pumps, aerials, multiplex — not a generalist learning on your truck.
Talk to a Mechanic.
Tell us what's going on. We'll tell you straight whether we're the right shop for it.