Electrical Panel Upgrades in Denver & Centennial
Panel Upgrades
Your electrical panel is the heart of your home’s power supply, distributing electricity safely to every outlet, appliance, and circuit. As Denver-area homes add central air, EV chargers, hot tubs, and home offices, older panels are often asked to carry far more load than they were built for. United Electric installs 100-amp, 200-amp, and 400-amp panel upgrades for homes and businesses across Denver, Centennial, Aurora, Highlands Ranch, Parker, Castle Rock, and Littleton, bringing older electrical systems up to current code safely and cleanly.
Signs Your Electrical Panel Needs an Upgrade
A handful of warning signs tell us a panel is overdue for an upgrade: breakers that trip repeatedly or won’t reset, lights that flicker or dim when an appliance kicks on, a panel still using fuses or rated below 100 amps, a burning smell or buzzing sound near the panel, or a home addition, EV charger, or hot tub you’re planning that the current panel can’t support. Older Denver-area homes sometimes still have Federal Pacific or Zinsco panels, both widely recognized in the industry as fire-risk brands that insurers may require you to replace before renewing a policy.
100A vs. 200A vs. 400A: Choosing the Right Panel Size
Most modern Denver-area homes are comfortably served by a 200-amp panel, which gives enough headroom for central air, an electric range, and a Level 2 EV charger without maxing out the system. A 100-amp panel is typically only adequate for a smaller home with gas heat and few major appliances, while a 400-amp panel is generally reserved for larger homes, homes with multiple EV chargers, or properties with a workshop or detached structure drawing significant power. During your free assessment, we run a load calculation on your actual home rather than guessing, so you’re not paying for more capacity than you need or getting stuck with too little.
What to Expect During Your Panel Upgrade
We start with an on-site load calculation and inspection of your existing panel, wiring, and grounding. Once you approve the scope, we pull the required electrical permit with your local jurisdiction and coordinate any necessary shutdown with Xcel Energy. On installation day, we disconnect and remove the old panel, install and label the new one to current National Electrical Code requirements, and restore power the same day in most cases. A final inspection closes out the permit, and we walk you through the new panel before we leave.
Why Hire a Licensed Electrician for a Panel Upgrade
A panel upgrade is not a do-it-yourself project. You’re working with your home’s main electrical service, and a mistake can mean fire risk, code violations that complicate a home sale, or a voided homeowner’s insurance policy. Faulty electrical wiring and equipment is a leading cause of house fires in the United States, according to the National Fire Protection Association, which is exactly why panel work should always go to a licensed, insured electrician who pulls the proper permits and follows current code.
Panel Upgrade FAQs
How do I know if I need a panel upgrade? If breakers trip often, your panel is a fuse box or rated under 100 amps, or you’re adding an EV charger, hot tub, or home addition, it’s worth having a licensed electrician run a load calculation.
How long does a panel upgrade take? Most residential panel upgrades are completed in a single day, though older homes with outdated wiring or required utility coordination can occasionally take longer.
Will I lose power during the upgrade? Yes, power is shut off for part of the installation while the old panel is removed and the new one is connected – we schedule this to minimize disruption and restore power the same day in most cases.
Do I need a permit for a panel upgrade in the Denver metro area? Yes. Panel upgrades require an electrical permit and inspection in every jurisdiction we serve, and we handle that process for you.
What does a panel upgrade cost? Cost depends on your panel size, home’s electrical load, and local permit fees. We provide a free, no-obligation quote after a quick on-site or virtual assessment so you know the exact price before any work begins.
