What Is a Sub Panel and How Do I Know If I Have One?
A sub-panel is a smaller electrical panel fed from your main panel, used to distribute power to a specific area like a…
Read AnswerFrequently Asked Questions
Straight answers to the questions our customers ask most — covering plumbing, heating, cooling, and electrical service across our service area.
What Kind of Services Does Mainstream Offer for Electrical Panels?
Mainstream offers full electrical panel services — diagnostics, repair, breaker replacement, panel upgrades (typically 100A to 200A or 400A), sub-panel installation, smart…
Read AnswerWhat Are Arc Fault Circuit AFCI Breakers?
An AFCI (arc-fault circuit interrupter) breaker is a special breaker that detects dangerous electrical arcs — like those caused by damaged wire…
Read AnswerDo Circuit Breakers Go Bad?
Yes — circuit breakers can absolutely go bad. Like any mechanical switch, breakers wear out from age, repeated tripping, heat exposure, and…
Read AnswerHow Do I Change a Circuit Breaker?
Replacing a circuit breaker is licensed-electrician work because it involves opening a live panel, identifying the right breaker brand and amperage, safely…
Read AnswerHow Do I Test My Electrical Circuit Breakers?
You can do a basic test of your circuit breakers at home by flipping each one off and on while watching what…
Read AnswerWhat Is a Circuit Breaker?
A circuit breaker is a safety switch that automatically shuts off power to a circuit when it senses too much current. It’s…
Read AnswerWhat Outdoor Lighting Can Help Improve the Safety and Security of My Home?
The most effective outdoor lighting for home safety and security is motion-activated floodlighting around entry points, well-placed pathway lights, fixture-mounted porch lights…
Read AnswerCan Mainstream Install Outdoor Lighting That Complements My Garden and Landscape Design?
Yes — Mainstream designs and installs outdoor lighting that complements your garden and landscape, including pathway lights, up-lighting on specimen trees, wash…
Read AnswerCan Mainstream Add Overhead Lighting or Fixtures in a Room That Doesnt Currently Have Any?
Yes — Mainstream can add overhead lighting and ceiling fixtures to almost any room, even ones without existing wiring. The work involves…
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