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Harrington Electrical Services is a C-10 licensed electrical contractor with technicians based in Northern California, proudly serving the United States Postal Service since 1992. Our office (shop) is located within the coverage area, which allows us to respond quickly to project needs and emergencies. Our team brings years of practical experience in these regions, along with in-depth familiarity with USPS facilities throughout the area.

Harrington Electrical Services has completed a wide range of electrical installations for USPS, including fire alarm systems, power drops, EV charging stations, and CCTV systems. Our technicians are certified to work on March Networks CCTV systems, as required by the U.S. Postal Inspection Service (USPIS), and are also trained and certified by ChargePoint to service the new EV charging systems installed by the USPS.
We currently monitor and service the fire alarm systems for over 60 USPS locations throughout the Bay Area and Sacramento area including major processing and distribution centers like San Francisco, Oakland, San Jose, and West Sacramento. In addition, we maintain a strong working relationship with a network of subcontractors, who we collaborated with on USPS facilities projects over the years.
Our certified technicians provide installation services for March Networks CCTV surveillance systems.
ChargePoint has trained and certified our technicians to service the new EV charging systems.
We specialize in the installation, programming, testing, and monitoring of Honeywell and Potter fire alarm systems.

Harrington Electrical Services strives for prompt responses to all work order requests.
Qualified staff technicians will investigate all reported issues and compile a scope of work for repairs per USPS and code requirements. We follow clear, well-established procedures for all electrical work, based on the National Electrical Code and USPS specifications. These procedures are integrated into our workflow to ensure consistency and safety on every job.
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To get a quote, please contact us at your convenience. We look forward to serving you.
Monday - Friday: 8am - 4pm
Saturday: Closed
Sunday: Closed