Warren County, Missouri

    Electrician in Marthasville, MO

    CAS Electric serves Marthasville, MO with full residential and commercial electrical services. Whether it's an older farmhouse needing a service upgrade or new construction along the Katy Trail corridor, you get a licensed electrician on every job.

    Call 314-852-8078Request Free Estimate

    Electrical Services We Provide in Marthasville

    Electrical Panel Upgrades
    200-amp & 400-amp Service Upgrades
    EV Charger Installation
    New Construction Wiring
    Generator Hookups & Transfer Switches
    Interior, Exterior & Landscape Lighting
    Electrical Troubleshooting & Repairs
    Commercial Tenant Finish & Equipment Circuits

    Why Marthasville Homeowners & Businesses Choose CAS Electric

    • Licensed and insured — the owner is on every job, not a sub.
    • Free, honest estimates with no pressure.
    • NEC code-compliant work that passes inspection the first time.
    • Local to the Warren County area — fast response, real availability.

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