Denver Circuit Breaker Installation | Breaker Panel Replacement

Circuit Breaker Installation Frequently Asked Questions

• Why does my circuit breaker keep tripping?

  A breaker trips because it’s doing its job, cutting power before a circuit overheats. The usual causes are an overloaded circuit (too many high-draw devices on one line), a short circuit, or a ground fault. Space heaters, hair dryers, and window AC units are common overload culprits. If one specific breaker trips repeatedly, the circuit is likely overloaded or there’s a fault on that line. If multiple breakers trip or the main keeps going, that points to a panel-level issue. Occasional trips are normal, but a repeating pattern is worth having looked at, because the breaker may also be wearing out and no longer protecting the circuit reliably.

• How do I know if I need a new breaker panel or just a breaker replaced?

  A single bad breaker, one that won’t reset, feels hot, or trips with nothing unusual plugged in, can often be swapped on its own. You likely need a full panel upgrade when the panel can’t keep up with your home’s demand: breakers tripping across multiple circuits, no open slots for new circuits, a panel under roughly 100 to 150 amps in a home adding modern loads, or visible problems like scorching, rust, or a burning smell. An electrician can tell you which it is during an inspection rather than guessing from symptoms alone.

• My panel is a Federal Pacific or Zinsco. Should I be worried?

  Yes, this is worth taking seriously. Federal Pacific (FPE) and Zinsco panels were installed widely in homes built from roughly the 1950s through the 1980s, and a fair number are still in service across older Denver-area homes. Both brands have well-documented histories of breakers that fail to trip when they should, which defeats the entire purpose of the panel and creates fire risk. Many insurers and home inspectors flag them specifically. If you have one, it’s worth having it evaluated for replacement even if it seems to be working fine. “Working” and “safe” aren’t the same thing with these panels.

• How many amps does my Denver home need?

  Most modern homes are served well by a 200-amp panel, though smaller or older homes may run on 100 to 150 amps. The number that matters is whether your panel can handle your actual load. Front Range homes are adding electrical demand fast, including EV chargers, heat pumps, induction ranges, hot tubs, and finished basements, and a lot of older panels in the metro were never sized for that. If you’re planning any of those upgrades, that’s the moment to confirm your panel has the capacity, because the panel often needs to come first.

• Is it safe to replace a breaker myself?

  We’d strongly advise against it. Even with the main breaker off, the lugs feeding the panel stay energized. That’s live, potentially fatal voltage inside the box. Beyond the shock risk, using the wrong breaker type or amperage for your panel, or over-torquing a connection, can create the exact fire hazard the breaker is supposed to prevent. Panels are also brand-specific, so the wrong breaker may physically fit but not be compatible. This is work for a licensed electrician, and in Colorado most panel and breaker work requires a permit and inspection anyway.

• Do I need a permit to replace a panel in the Denver area?

  In most cases, yes. Panel replacements and many breaker and circuit modifications require an electrical permit and inspection across Denver-area jurisdictions, and the specific requirements vary by city and county. A licensed electrician pulls the permit and coordinates the inspection as part of the job, so it’s handled for you. This matters beyond compliance, since permitted, inspected work protects you on insurance claims and comes up when you sell the home.

• How long does a panel replacement take?

  A straightforward residential panel swap is often completed in a day, though it depends on the condition of the existing wiring, whether the service is being upsized, and utility coordination if the meter or service entrance is involved. Your power will be off for part of the work. We’ll give you a realistic timeline and walk you through what to expect after assessing your specific panel and electrical needs.