DOWN TO EARTH — AND DOWN TO BUSINESS.
WHO WE SERVE // DRILLING PROFESSIONALS
We service the drilling equipment and rigs that keep your projects moving from the ground up.
DRILL RIG REPAIR & SPECIALTY SERVICES
We offer full-service, in-shop repairs for environmental, geotechnical, geothermal, and water well drilling rigs. Whether you're running track-mounted units, truck-mounted rigs, or custom hydraulic setups, we know what it takes to keep your equipment field-ready and working under pressure. Repairing or rebuilding your drill rig to OEM spec is our minimum standard— and we pride ourselves on relentlessly exceeding that benchmark.
HYDRAULIC SYSTEMS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Troubleshoot and repair hydraulic circuits, directional valves, pumps, motors, and cylinders across all rig types. We handle hose replacements, hydraulic leaks, flow loss, and system overheating. Pressure test and restore functionality to OEM spec or better with clean, efficient routing and robust sealing.
AUGER DRIVES
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Disassemble and rebuild auger drives, including gearboxes, output shafts, and drive couplings. We service hydraulic-powered and mechanical drive systems, ensuring torque delivery, shaft alignment, and smooth auger feed for reliable penetration across varying soil conditions.
TRACK & CHASSIS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
We service crawler undercarriages, track drives, and chassis mounts for tracked rigs. This includes drive motor diagnostics, tensioner adjustments, and frame reinforcement. We also offer cosmetic work such as touch-up paint or complete respray to help rigs look as solid as they run.
TOP DRIVE & ROTARY SYSTEMS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Service and rebuild top drive heads, rotary gearboxes, and spindle drive assemblies. We repair misaligned torque heads, worn bushings, and cracked rotary platforms, and offer upgrades to rotation motors and gear reduction systems for increased drilling control and performance.
WINCHES, SHEAVES, & CABLES
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Service and calibrate lifting systems, including hydraulic winches, sheave wheels, cable drums, and tension assemblies. We repair or replace damaged lift cables, worn fairleads, and sticking spools to keep your load-handling systems safe, responsive, and ready for field use.
FABRICATION & MODIFICATIONS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Custom fabrication to fit your workflow — from toolboxes, control mounts, and step frames to full rig remounts or bracket rebuilds. We engineer solutions to real-world field problems like recurring cable snags or operator obstructions. If it’s been hacked together before, we’ll build it better.
PREVENTATIVE MAINTENANCE
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Keep your rigs running without interruption. Our preventative maintenance plans are built around your equipment, your schedule, and your workload — not a cookie-cutter checklist. We perform oil changes, fluid top-offs, filter replacements, and system checks based on usage hours and operating conditions.
Clients enrolled in a PM plan receive priority scheduling, service reminders, and the option to have fluids and filters pre-stocked at our shop for fast turnaround. We track wear patterns, flag early warning signs, and help prevent expensive breakdowns before they happen
ELECTRICAL SYSTEMS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Troubleshoot rig electrical issues including start-up failures, short circuits, and low-voltage dropouts. We repair or replace custom wiring harnesses, switch panels, sensor connectors, and control boxes — with clean routing, sealed terminations, and function-first design for field durability.
MAST & FEED SYSTEMS
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
Rebuild mast guides, feed cylinders, and carriage tracks for vertical and angle-drill rigs. We address tracking issues, warped mast structures, and actuator misalignment. Whether your rig needs complete feed rail replacement or targeted straightening and welding, we restore mast integrity for daily field use.
PUMPS & VALVES
INSPECT | | DIAGNOSE | | REPAIR | | REBUILD
In-shop testing and rebuilds of fluid pumps, directional control valves, and pressure regulators. We replace worn seals, correct bypass issues, and restore system flow and pressure performance. All components are flushed, resealed, and bench-tested for field-ready operation.
WHAT CLIENTS ARE SAYING…
CEO // Geotechnical Drilling Company
“I haven’t met a more dedicated or thorough mechanic in my 30 years of working in construction.”
THE SPECIALISTS IN DRILLING EQUIPMENT REPAIR.
Sun Wolf Equipment Repair approaches every repair like an investigation, diagnosing the root cause to deliver lasting solutions, not temporary fixes. When you work with us, you can expect:
In-shop repairs and full rebuilds for specialty and fleet equipment
Fast, responsive service and clear communication
Skilled technicians experienced with custom and one-off machinery
Practical advice focused on keeping you operational — not upselling
A commitment to doing the job right the first time
Expert service technicians with real-world field experience
Honest, knowledgeable service advisors focused on your success
Precision repairs that solve problems at their source — not just patch symptoms