Electrical Panel Upgrades in Greenwood Village & Denver, CO
Service upgrades from 100A to 200A, fuse box and failing panel replacements, and sub-panels, permitted and inspected across the Denver Metro.
About Our Electrical Panel Upgrades & Replacement
Your electrical panel is the heart of the house. When it is undersized, outdated, or a known fire risk, everything downstream is affected: breakers trip, projects stall, and EV chargers and heat pumps have nowhere to connect.
BES upgrades 100 amp services to 200 amp, replaces old fuse boxes, and swaps out the panels Colorado inspectors flag on sight: Federal Pacific (FPE) Stab-Lok, Zinsco, and Pushmatic. We pull the permit, coordinate the meter pull with Xcel, complete the work in a day on most homes, and schedule the inspection for you. When you are planning an EV charger, a heat pump, a hot tub, or an addition, we size the new panel for what is coming, not just what is there today.
Every upgrade includes a fresh load calculation, a new main breaker, labeled circuits, and whole-home grounding and bonding brought up to current code.
Common Problems We Diagnose & Fix
Most AC issues show one of these symptoms. Here's what's usually causing it and what a typical repair runs.
Breakers trip whenever a few appliances run at once
The service is undersized for the home's current load, common on 100 amp panels with modern appliances.
The panel is a Federal Pacific or Zinsco
Known breaker-failure and fire risk. Replacement is recommended regardless of symptoms.
Burning smell or scorch marks at the panel
Loose connections or overheating breakers. Stop using the panel and call right away.
No room to add an EV charger or heat pump circuit
The panel is full or the service is too small for the new load. An upgrade or sub-panel opens up capacity.
Not sure which one matches? Our techs diagnose on-site and quote the repair before any work starts. No surprise charges.
Electrical Panel Upgrades & Replacement
Every job includes the following - no hidden add-ons, no upcharges.
100A to 200A Upgrades
Most homes upgrade to a 200 amp service so there is headroom for an EV charger, heat pump, AC, and future additions. Completed in a single day on most installs.
Meter & Service Coordination
We handle the Xcel meter pull, the mast or meter base replacement when needed, and the utility reconnect, so you are not chasing the power company yourself.
Permit & Inspection Handled
Every panel job is permitted and inspected. We pull the permit and schedule the inspection on your behalf. Skipping it can void your home insurance.
FPE, Zinsco & Fuse Box Replacement
Federal Pacific Stab-Lok, Zinsco, and Pushmatic panels are known fire and breaker-failure risks. We replace them with modern, safely-rated load centers.
Sub-Panels & Circuit Additions
Garage, shop, basement, and ADU sub-panels, plus dedicated circuits for hot tubs, ranges, and workshop tools.
EV & Heat-Pump Ready
We size the upgrade for the loads you are adding next so you only pay for the service work once.
Electrical Panel Upgrades & Replacement available across the Denver Metro
Same-day dispatch from our Greenwood Village office. Click your city for area-specific details.
- Electrical Panel Upgrades & Replacement in Englewood
- Electrical Panel Upgrades & Replacement in Lone Tree
- Electrical Panel Upgrades & Replacement in Highlands Ranch
- Electrical Panel Upgrades & Replacement in Douglas County
- Electrical Panel Upgrades & Replacement in Centennial
- Electrical Panel Upgrades & Replacement in Castle Pines
What Colorado Homeowners Say
“BES came out same-day when our AC went out during a heat wave. The tech was professional, explained everything, and had us cool again in under 2 hours. Highly recommend!”
Sarah M.
Greenwood Village, CO · AC Repair
“Had BES install a Level 2 EV charger in our garage. They handled the permit, the install was clean and professional, and they even helped us apply for the Colorado rebate. Excellent service!”
James T.
Parker, CO · EV Charger Installation
“After getting 3 quotes for our electrical panel upgrade, BES had the best price and the best reviews. The job was done on time, cleanly, and passed inspection the first time.”
Linda R.
Centennial, CO · Panel Upgrade
Electrical Panel Upgrades & Replacement FAQs
A standard 100 amp to 200 amp upgrade typically runs $2,500 to $4,500 in the Denver Metro, depending on whether the meter base or mast needs replacing and where Xcel's service drop comes in. We give you a firm written quote after a free in-home assessment.
Common signs: breakers that trip often, a fuse box instead of breakers, a 100 amp or smaller service, scorch marks or a burning smell at the panel, or plans to add an EV charger, heat pump, or addition. If your panel is a Federal Pacific or Zinsco, we recommend replacement regardless of symptoms.
Ready to Schedule Service?
Fill out the form below and a BES team member will contact you within 1 hour.
Related Services
Areas We Serve
Electrical Panel Upgrades & Replacement available throughout Denver Metro & Douglas County.