Industrial Preventive Maintenance Programs
Southern California Facilities
Unplanned downtime in a Southern California manufacturing, food processing, or distribution facility costs thousands of dollars per hour — and most of it is preventable. Direct Source designs and delivers scheduled preventive maintenance programs for industrial facilities across LA, Orange, San Bernardino, Riverside, Ventura, Kern, and San Diego counties — covering electrical systems, PLCs and automation controls, and mechanical equipment. One PM contract. One point of contact. No surprises.
Call (562) 396-9924Request a PM Program Quote
We assess your facility and build a custom PM schedule — respond within one business day.

Trusted by industry leaders
Direct Source serves Southern California’s top manufacturers







What We Do
What's Included in a Direct Source PM Program
We build a custom preventive maintenance schedule around your equipment, your production calendar, and your compliance requirements.
Electrical PM
Panel inspections, thermal imaging, breaker testing, connection tightening, load monitoring, and switchgear maintenance on a scheduled basis.
PLC & Controls PM
PLC program backup, battery replacement, I/O card testing, HMI maintenance, VFD parameter documentation, and control panel inspection.
Mechanical PM
Motor inspections, bearing lubrication, belt and coupling checks, conveyor tensioning, pump and gearbox service, and pneumatic system checks.
Infrared / Thermal Imaging
Annual or semi-annual thermal scanning of electrical panels and MCC equipment to identify hot spots before they become failures.
PM Reports & Documentation
Every PM visit produces a written report — findings, work performed, and recommended follow-up — so your maintenance records are always current.
Emergency Priority Response
PM contract clients get priority scheduling for emergency calls — you move to the front of the line when production is down.
Industries Served
Who We Serve
We serve industrial facilities across Southern California in every major industry sector.
Food & Beverage / Cold Storage
Refrigeration systems, production MCCs, conveyor drives, and cold chain electrical — scheduled PM keeps your lines running and your USDA/FDA compliance intact.
Distribution & Warehousing
Conveyor systems, dock levelers, lighting, HVAC controls, and facility electrical — we keep high-throughput distribution centers operating at full capacity.
Manufacturing
Machine tool electrical, hydraulic and pneumatic systems, PLC-controlled production lines, and facility power — customized to your production schedule.
Oil & Gas / Refineries
Production facility electrical, pump station MCCs, classified location equipment, and control systems — PM programs designed for continuous operation environments.
Water & Wastewater
Pump station electrical, SCADA/PLC controls, motor and drive maintenance, and facility switchgear — keeping critical infrastructure running reliably.
Aerospace & Defense
Test facility electrical, cleanroom HVAC controls, precision manufacturing equipment, and facility power — PM programs that meet your compliance documentation requirements.
What Clients Say
Trusted by City of Industry & Los Angeles County Manufacturers
“We were experiencing electrical and PLC problems at our manufacturing plant and needed help ASAP. Direct Source came in the same day, gave us a very fair estimate, found the problem, and fixed it. We got back up and running with little downtime. These guys know what they're doing.”
“We had an unexpected production issue at our facility in City of Industry and Direct Source responded quickly. Their industrial electrician team diagnosed the problem fast and got us back up and running the same day. Professional and dependable.”
“They were professional and prompt, diagnosed the issue quickly, and fixed it at no charge since it was an easy fix. That type of customer service goes a long way in showing how they operate. They will be our FIRST call for the next electrical need.”
Why Direct Source
Why Southern California Industrial Facilities Choose Us
One Contractor, All Three DisciplinesElectrical, PLC/automation, and mechanical — most facilities juggle three separate vendors. Direct Source covers all three under one PM contract.
Custom Schedules Around Your ProductionWe build your PM calendar around your shutdown windows, production peaks, and compliance deadlines — not ours.
Priority Emergency ResponsePM contract clients get priority scheduling. When you're down, you move to the front of the line.
Full DocumentationEvery PM visit is documented — findings, work performed, parts replaced, and recommendations. Your records are always audit-ready.
Get Started
Get a Quote for a PM Program Quote
- Electrical, PLC/automation, and mechanical covered
- Custom schedule — monthly, quarterly, or annual
- No obligation assessment
Tell Us About Your Facility
Submit below — we respond within one business day.
Industrial Preventive Maintenance — Common Questions
What does an industrial PM program include?
A Direct Source PM program covers electrical (panel inspections, thermal imaging, breaker testing), PLC and controls (program backup, I/O testing, VFD maintenance), and mechanical (motor inspections, bearing lubrication, conveyor service) — on a schedule matched to your facility's needs.
How often should industrial equipment be serviced?
Most industrial facilities benefit from quarterly electrical and mechanical PM with annual deep inspections. PLC systems typically need semi-annual backup and inspection. We assess your specific equipment and production schedule to recommend the right interval.
Do you serve facilities outside of Los Angeles?
Yes. Direct Source serves industrial facilities throughout Southern California — Los Angeles, Orange, Riverside, San Bernardino, Ventura, Kern, and San Diego counties.
Can you take over PM from our current vendor?
Yes. We can review your existing PM records and equipment list and build a transition plan. We'll identify any gaps and bring your program current.
Ready to Talk to Direct Source?
We serve industrial facilities throughout Southern California. Call us or submit a request — we respond within one business day.