ELECTRICAL PANEL UPGRADES · TRI-CITIES
Panel Upgrades for Homes and Businesses Across the Tri-Cities
WHEN TO UPGRADE YOUR PANEL
What a Panel Upgrade Looks Like
A panel upgrade is often the first step when adding an EV charger, Powerwall, hot tub, electric heat pump, or other high-demand electrical equipment. RMS provides 100A to 200A service upgrades, sub-panel installations, and complete panel replacements throughout the Tri-Cities. We start with a load calculation to determine whether your existing service can support your current and future electrical needs, recommending upgrades only when they are necessary.
100A to 200A Service Upgrades
The most common upgrade. Replace the existing 100-amp panel and service equipment with a 200-amp panel and service. Includes the meter base, service entrance, panel, and grounding. Coordinated with your utility for the service swap.
Sub-Panels
A sub-panel adds circuit capacity in a specific area of the home or business without upgrading the main service. Useful for garage workshops, ADUs, EV charging installations, or large commercial loads on one part of the property.
Service Equipment Replacement
Older meter bases, service entrances, and disconnects sometimes need replacement even when the existing panel still has life. We replace the service-side equipment to meet current code and prepare the property for whatever comes next.
PLANNING AHEAD
Thinking About an EV Charger?
A panel upgrade often pairs with an EV charger install. The load calculation answers whether your existing service can support a 40-amp or 48-amp Level 2 charger, or whether you need additional capacity first.
Thinking About Backup Power?
Powerwall and other battery-backup systems have specific panel requirements — backup circuits get separated from non-essential loads, and the panel layout often needs adjusting at the time of install. If a Powerwall is on your radar, the panel decision and the battery decision should happen together.
WHY BUSINESSES PICK RMS
Cost and Timeline
Panel upgrades range widely based on service size, existing wiring condition, and whether sub-panels or backup-power equipment are part of the same project. A straightforward 100A-to-200A residential upgrade typically runs in a predictable range; service-side rework, mast replacement, or commercial three-phase work pushes the number up.
We give you a real number after a quick site visit, not a marketing range. Most residential panel upgrades take one day on site. Permitting and utility coordination add a few days on either side.
REQUEST AN ESTIMATE
Tell Us About Your Panel
Whether it’s an upgrade, a sub-panel, or you’re just not sure where to start, the first step is a short conversation.
Call or Text
(509) 205-8071