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Roofing equipment repair is the core specialty of Josias Auto Service LLC. With over 20 years of hands-on industry experience, we service the full range of machinery that roofing contractors depend on every day — from precision welding robots to portable generators and adhesive application systems. Whether you’re dealing with a sudden breakdown on a job site or scheduling routine maintenance between projects, we have the expertise to get your equipment back in service quickly and reliably.

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Equipment We Service

Leister Robots

Weld seam repair and calibration to restore consistent, high-quality welds on single-ply roofing membranes.

Heat Guns

Heating element replacement and temperature regulation repairs to keep your heat guns performing within spec.

Generators

Engine repair and electrical diagnosis for portable and stationary generators used on roofing job sites.

Roof Cutters

Blade maintenance and drive system repair to keep your roof cutting equipment operating cleanly and efficiently.

Adhesive Machines

Pump and hose servicing for adhesive application machines to prevent clogs, leaks, and pressure loss.

Other Roofing Machinery

Operating something not on this list? Reach out — we’re happy to evaluate any roofing equipment you bring in.

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Why Timely Repairs Matter

When roofing equipment fails on an active job site, the entire crew can come to a standstill. Every hour of downtime translates directly into lost labor, delayed project timelines, and frustrated clients. A malfunctioning Leister robot or a generator that won’t start can turn a productive day into an expensive one. At Josias Auto Service, we treat every repair with that urgency in mind. Quick turnaround is a priority for us — we understand that your equipment sitting in our shop means your crew is sitting idle, and we work hard to prevent that.
Not sure if your equipment is something we service? Contact us — we’re happy to evaluate any roofing equipment and let you know what repairs are needed.

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Get a Repair Quote

Ready to get your roofing equipment back in working order? Reach out to us directly and we’ll discuss your repair needs, provide an honest assessment, and give you a straightforward quote. You can also visit our contact page for more details. We’re a family-owned shop in Seguin, TX, and we take pride in treating every customer — and every piece of equipment — with care and professionalism.