San Diego’s Electric Generator Specialists

San Diego businesses depend on reliable electric power to keep operations moving every day. Duthie Power Services has been the trusted name in generator sales, rentals, maintenance, and repair for more than 60 years. Since opening our Escondido location in 2019, we’ve partnered with facilities across the healthcare, biotech, education, and hospitality industries to deliver dependable backup power solutions throughout the area. Our electric generator expertise covers the full lifestyle of your backup power source, including equipment selection, professional installation, and ongoing service.

What We Do

Our team supports San Diego operations managers, facility engineers, and industrial clients with full-service emergency backup generator solutions. We work on all makes and models of commercial backup power equipment across every major fuel type. We also handle routine maintenance, diagnostics, and emergency repairs for standby generator fleets of any size.

  • Electric Generator Sales in San Diego

    When you’re adding a new standby generator, our sales engineers help you select equipment matched to your load and electrical power profile. We supply diesel, natural gas, and LP vapor electric generators by leading manufacturers including Caterpillar, Cummins, Blue Star, Generac, Gillette, and Kohler. For hospital expansions or new industrial builds, we coordinate professional installation with your licensed electrician and verify output voltage and transfer switch compatibility.

  • Generator Repair and Diagnostics

    Our union-trained technicians diagnose and repair electric generators, transfer switches, control panels, and complete Emergency Power Supply Systems (EPSS). We work on all makes and models of diesel, natural gas, and liquid spark-ignited generators, along with electric motor rewinds, cabling, and paralleling equipment. Our techs troubleshoot common failure points including short circuit conditions, controller faults, external circuit issues, and fuel contamination.

  • Commercial Generator Rentals

    Our generator rental program includes units ranging 22KW up to 1,500KW, giving San Diego businesses flexibility for short-term projects, planned maintenance windows, and extended power outage events. Every rental meets California emission and noise regulations and delivers dependable generator power for critical loads. We supply the full package of power sources, including fuel tanks, distribution panels, automatic transfer switches, and cables rated for high voltage.

  • Generator Maintenance Programs

    Preventive maintenance keeps your backup generator ready to perform when the grid goes down. Our San Diego technicians handle routine inspections, fuel system checks, battery testing, oil changes, and full diagnostics. Regular service protects your electrical system, reduces safety hazards associated with aging equipment, and extends the useful life of your power generator. Our diagnostics catch a wide range of developing issues early, including moisture absorption in windings, degraded insulation, and fuel breakdown, letting us schedule repairs on your terms instead of during an emergency.

  • 24/7 Emergency Service

    Power outages don’t follow business hours, and neither do we. Our emergency response team monitors calls around the clock, 365 days a year, and can deploy rental power sources or diagnostic support the moment your existing equipment fails. Whether you’ve lost grid power across an entire facility or a single critical generator has shut down unexpectedly, our San Diego technicians are ready to stabilize your operation and restore reliable electrical power quickly.

  • Automatic Transfer Switch Service

    Your automatic transfer switch is the critical link between utility power and your standby generator, and any fault in the switch can keep a perfectly good generator offline during an outage. Our technicians perform full preventative maintenance on all makes and models of ATS equipment, including contact cleaning, lubrication, calibration, and functional testing. We also diagnose and repair transfer switch faults that cause failed-start events during a power outage.

Duthie Power San Diego Operations Manager Nathan towing a commercial generator in front of the Escondido offices.

Industries We Serve Across San Diego County

Duthie Power supports San Diego’s most demanding commercial and industrial sectors, including healthcare, data centers, education, and hospitality. Healthcare clients, in particular, rely on our team to keep life-safety equipment and critical medical devices powered during any interruption in the electrical energy supply. Our sales engineers and technicians understand the code requirements and uptime demands specific to each sector.

As active members of the San Diego Building Engineers Association and IFMA San Diego, we stay closely connected to the local facilities and business community we serve.

Plan Ahead to Prevent Downtime

The most reliable backup power solution is one that’s installed, maintained, and tested before you need it. A properly sized standby generator paired with an automatic transfer switch activates within seconds of grid failure, keeping critical systems online when utility electricity generation is interrupted. Regular service by our San Diego team keeps every component of your backup power source in working order, including the transfer switch, controller, and fuel system.

Duthie Power Services Generator Technicians in front of the San Diego Division's Escondido offices with their service trucks.

Frequently Asked Questions

Our Escondido location allows us to respond quickly throughout San Diego County. Call our dispatch line to discuss your site location and timeline.

Generator sizing starts with your connected load, the equipment you need to keep running during a power outage, and your facility’s growth plans. Our sales engineers perform load calculations, review your electrical system, and recommend equipment, matching output voltage and generator power capacity to your application.

Yes. Our technicians repair and maintain generators by every major manufacturer in the United States generator market, including Caterpillar, Cummins, Blue Star, Generac, Gillette and Kohler. We also service automatic transfer switches, control panels, diesel fire pump engines, and related power station equipment.

Yes. We build maintenance plans around your equipment’s age, runtime, and facility requirements. Plans typically include annual inspections, fuel polishing, and full diagnostics that catch issues before they cause a failure. Consistent service protects your electrical power capacity and keeps your backup power source ready for the next outage.

Yes. We sell and install natural gas standby generators for commercial and industrial facilities that prefer utility-supplied fuel over on-site diesel storage. Our team coordinates with your licensed electrician and local inspectors to complete professional installation, verify safe electric power distribution across your meter base and panel, and bring the unit online.

Expert Team at Your Service

Our San Diego operations are led by experienced service managers and staffed by EGSA-certified generator technicians who live and work across Southern California. We lead with integrity, emphasize quality assurance, and go the extra mile for every customer. Whatever your power generator needs look like, including same-day emergency dispatch or a detailed site survey for a new installation, our team is ready to help.

Tom Glassen

San Diego Sales Engineer

Tom Glassen serves as a Sales Engineer for Duthie Power in San Diego, where he combines in-depth knowledge of generator systems with a passion for providing exceptional solutions and support to commercial clients across the region.

San Diego’s Generator Experts

As a family-owned business serving Southern California for over 60 years, we work hard to deliver quality service for every customer. 

Call us today or use the Request a Quote form below. If this is an emergency, call us right away, we monitor the line 24/7.

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