Our Story
Owner-led electrical work since 1981
Interstate Electrical Contractors is a licensed electrical company based in Glendora, run by Frank Chiavarini. Frank has worked as an electrician since 1981, bringing 45+ years of hands-on experience with residential and commercial electrical systems across the San Gabriel Valley. The company follows one simple idea: the person you talk to is the person who does the work.
We serve Glendora and nearby communities with residential and commercial electrical work under California C-10 Electrical Contractor License #415324. Frank handles the work directly, so customers are not passed from one unfamiliar crew to another.
Interstate Electrical has served the Glendora area since 1981. Over the years, Frank has worked on new construction, older homes with aluminum wiring, panel upgrades, remodels, and commercial electrical systems. The technology has changed, EV chargers, smart-home equipment, and LED lighting are now part of everyday electrical work, but the focus on careful workmanship has stayed the same.
Many calls come from nearby homeowners, property owners, and businesses. The work can be as small as tracing a dead outlet or adding a circuit, or as involved as updating older wiring, supporting a remodel, or handling commercial electrical upgrades. Different jobs still require the same careful approach.
Frank owns it, and he is doing the work. That's what people are seeing. He comes over, sees the problem himself, explains what's going on in plain language, and does the work with his own hands. After decades in the trade, Frank has worked with a wide range of electrical systems found in Glendora and nearby communities. Just as important, he explains the problem before work begins, discusses what needs attention and what can wait, and gives customers clear information about the job. No unnecessary upselling. No runaround.
