Shop Capabilities.
In-house machining, motor rewind, pump rebuild, fabrication, and parts — everything under one roof so your equipment gets done right the first time.
Fast Turnaround
In-house capabilities mean no waiting on outside contractors. We machine, rewind, test, and ship — often same-week for critical jobs.
Three Locations
Full-service shops in San Dimas, Camarillo, and San Bernardino — strategically positioned to serve all of California quickly.
Quality Guaranteed
Every unit that leaves our shop is tested to ensure it meets performance specs. We stand behind our work with a full workmanship warranty.
Precision
Machining.
Our machine shop is equipped with full-sized lathes, milling machines, and drill presses — capable of handling shafts, bowls, impellers, and casings across the full range of pump and motor sizes we service.
- Shaft turning, straightening, and keyway cutting
- Impeller trimming and balancing for performance optimization
- Bowl and diffuser machining and reconditioning
- Seal and bearing seat machining
- Custom sleeve and bushing fabrication
- Flange facing and thread repair
- Tolerances held to manufacturer specifications
Fabrication
& Welding.
When off-the-shelf parts don’t cut it, our fabrication team builds what you need. From custom discharge heads to structural pump supports, we weld and fabricate in carbon steel, stainless, and other alloys.
- Custom discharge head and well seal fabrication
- Pump base plate and support structure welding
- Pipe spool fabrication and modification
- MIG, TIG, and stick welding in steel and stainless
- Column pipe cutting, threading, and coupling installation
- Custom bracket and adapter fabrication
- Field and shop welding capabilities
Pump Rebuild
& Overhaul.
From small booster pumps to multi-stage turbines pulling from hundreds of feet down, GPC’s shop technicians have the experience and equipment to completely disassemble, inspect, recondition, and rebuild virtually any pump we work on.
- Full teardown, cleaning, and component-level inspection
- Wear ring, bowl, and diffuser replacement
- Impeller reconditioning or replacement
- Column pipe and lineshaft straightening and replacement
- Packing and mechanical seal replacement
- Performance testing post-rebuild before return to service
- Detailed inspection and rebuild report provided
Parts &
Inventory.
GPC stocks an extensive inventory of wear parts, bearings, seals, and components across the most common pump and motor brands we service — reducing lead times and keeping your systems running with minimal downtime.
- Impellers, bowls, wear rings, and diffusers in stock
- Bearings, seals, and packing for common pump models
- Column pipe and lineshaft sections available
- Common submersible motor inventory on hand
- Parts sourced from leading manufacturers: Goulds, Berkeley, Grundfos, and more
- Emergency parts procurement for critical repairs
- Inventory across all three California shop locations
Send us your pump
or motor today.
Drop it off at any of our three California shops or arrange pickup. Our team will inspect, quote, and get it back to you fast.