Electrical Panel Upgrades and Replacements in Commerce City, CO

Your electrical panel doesn’t get much attention until something goes wrong. But it’s one of the most important parts of your home. Everything runs through it — your lights, your appliances, your HVAC, even your phone charger. When it starts struggling to keep up, you feel it. Breakers trip at the worst times, lights flicker for no clear reason, and you find yourself wondering if something bigger is going on.

At McCarrick Electric, we’ve helped a lot of Colorado homeowners figure out exactly what’s going on — and get it fixed right. If your residential electrical panel is aging, overloaded, or simply not built for the way you live today, we can walk you through your options and make sure the work gets done correctly.

Is Your Panel Keeping Up?

Most homes that are 20 or more years old are running on an old electrical panel that was never designed for modern power demands. Back then, nobody was running EV chargers, whole-home generators, multiple smart devices, and a high-efficiency HVAC system all at once. Today, that’s just a Tuesday.

Here are some signs your existing panel may be due for an upgrade or replacement:

Circuit breakers that trip frequently or won't reset cleanly
Lights that dim when the dishwasher or dryer kicks on
Warmth or a burning smell coming from the electrical panel box
Outlets or switches that buzz, spark, or feel hot
Your home still uses a fuse box instead of breakers
You're planning to add an EV charger, solar panels, heat pumps, or a major appliance
Your licensed electrician or home inspector flagged your panel as a concern

Any one of these on its own is worth a conversation. More than one, and we’d really encourage you not to wait.

What a Panel Upgrade Actually Involves

We know “electrical panel upgrade” can sound intimidating. It doesn’t have to be. Here’s how we approach it.

We start with an honest electrical panel inspection. Before we recommend anything, a licensed electrician looks at your current service panel, your home’s electrical load, and what you’re planning to add or change. Some homes need a full electric panel replacement. Others need a service upgrade to increase amperage — moving from a 100 amp panel to a 200 amp service panel, for example, or upgrading to 200 amp service entirely. We’ll tell you exactly what we find and why.

From there, we handle all the electrical work:

Pulling the necessary permits with your local jurisdiction
Removing the old panel and installing a properly sized new electrical panel
Upgrading wiring connections and breakers as needed
Testing the full system before we leave
Scheduling and passing the final inspection

Most panel upgrades and breaker panel replacements are completed in a single day. We’ll give you a clear timeline upfront.

Choosing the Right Panel Size

Panel size matters more than most people realize. Too small, and you’re back to tripped breakers and limited capacity. Too large, and you’ve spent more than you needed to. Here’s a quick breakdown of what we typically see:

100 amp panel — Found in older or smaller homes. Adequate for basic needs, but often insufficient for modern appliances, EV chargers, or home additions.
150 amp panel — A middle-ground option for mid-sized homes with moderate electrical demands.
200 amp service panel — The current standard for most Colorado homes. Handles today's typical load comfortably, with room to grow.
400 amp panel — Suited for large homes, homes with significant electrical additions, or properties running substantial equipment like a whole-home generator alongside solar and an EV charger.

We do a proper load calculation before recommending anything. We’re not going to suggest more than you need, and we’re not going to leave you short.

Why Panel Upgrades Matter Beyond Safety

Safety is the obvious reason to upgrade. An overtaxed or deteriorating electrical panel box is a genuine fire risk. But there are other real benefits worth knowing about.

Your home becomes more functional. When your service panel has the capacity it needs, things just work. No more timing your laundry around what else is running.

Your home’s value goes up. A modern electrical panel is a selling point. In some cases it’s a requirement before a sale can close.

You may pay less for insurance. Some home insurance providers discount premiums for homes with updated electrical systems after a home electrical panel upgrade. Worth checking with your carrier.

You’re ready for what’s coming. EV chargers, solar panel upgrades, battery storage, heat pumps, heat pump water heaters — these are all becoming common in Colorado homes. A properly sized panel means you won’t need another upgrade in three years when you’re ready to add them.

Energy efficiency improves. A new panel supports modern electrical loads more cleanly, reducing strain on your home’s system and supporting smart panel technology if that’s the direction you want to go.

Panels We Work With

We install panels from trusted manufacturers built to meet current National Electrical Code standards. Whether your home needs a 100 amp breaker box, a 200 amp breaker box, or a 400 amp electrical panel, we’ll match the solution to your actual usage.

If you have a Zinsco or Federal Pacific Electric panel, we want to flag that specifically. These brands have well-documented safety concerns and are no longer considered acceptable by most insurers or inspectors. If that’s what you have, electrical panel replacement isn’t just an upgrade — it’s a priority.

Frequently Asked Questions

What is the difference between an electrical panel upgrade and an electrical service upgrade?

A panel upgrade typically means replacing the electrical panel box itself — new breakers, new hardware, better capacity. An electrical service upgrade refers to increasing the amperage coming into your home from the utility, such as moving from 100 amp to 200 amp service. Sometimes you need both. We’ll tell you which applies to your situation after an inspection.

How do I know what panel size my home needs?

It depends on your home’s total electrical load and what you’re planning to run. We do a proper load calculation before recommending a panel size. Most modern Colorado homes are best served by a 200 amp service panel, but larger homes or those with significant electrical additions may need a 400 amp panel.

Do you handle permits and inspections for panel replacements?

Yes, always. Permits are a standard part of every panel job we do. We pull them, manage the process, and schedule the final inspection. Unpermitted electrical work creates real problems when you sell your home or file an insurance claim — we don’t cut that corner.

Can I upgrade my panel at the same time as adding an EV charger or solar?

Absolutely, and it often makes sense to do both at once. If your existing panel can’t support an EV charger or a solar panel upgrade, we can replace the panel and install the new circuit in the same visit. One job, one permit process, less disruption.

How long does a breaker box replacement take?

Most residential electrical panel replacements are completed in a single day. More involved jobs — like a full electrical service upgrade that requires coordination with your utility — may take longer. We’ll give you an honest timeline before we start.

Ready to Take a Look?

If your panel has been on your mind, give us a call. We’re happy to come out, take an honest look, and tell you exactly where things stand. No pressure, no overselling — just a straight answer from people who genuinely care about getting this right.

McCarrick Electric serves Commerce City and the surrounding Colorado communities. Contact us today to schedule your electrical panel inspection or get a free estimate on a panel upgrade or replacement.