When electrical systems age, they can’t always keep up with modern energy demands. Outdated wiring and undersized panels can lead to frequent breaker trips, flickering lights, or even serious fire hazards. That’s why panel upgrades and rewiring projects are some of the most impactful improvements homeowners can make.

Recently, our licensed electricians at Mainstream Electric, Heating, Cooling, & Plumbing completed a panel replacement and partial rewiring for a Spokane homeowner—modernizing the home’s electrical infrastructure for safety, capacity, and long-term reliability.

The Job Overview

Location: Spokane, WA
Scope: Full panel upgrade with partial home rewiring, including roofline service connections, updated outlets and switches, and code-compliant grounding.
Why it mattered: The home’s original electrical system was no longer meeting safety or performance standards. By upgrading the panel and replacing aging wiring, the homeowner gained improved electrical capacity, reduced fire risk, and peace of mind knowing their system was brought up to current code.

Here’s a look at some of the key improvements we made during this Spokane panel upgrade:

What We Found

During the initial inspection, our electricians evaluated the home’s main panel, service line, and branch circuits. The existing panel was outdated, with limited capacity and breakers that were no longer reliable. Wiring throughout parts of the home showed clear signs of age, including outdated connections and insufficient grounding.

We also identified roofline service connections that required updating to meet Spokane electrical codes, as well as outlets and switches that needed modern, grounded replacements to handle everyday appliance and device loads safely.

The Solution

To address these issues and future-proof the home’s electrical system, our team:

Removed the outdated electrical panel and installed a modern, properly sized service panel with updated breakers.
Completed partial home rewiring, replacing aging wiring and connections to support higher electrical loads safely.
Upgraded roofline service connections and grounding systems for full code compliance.
Replaced older outlets and switches with safe, modern components.
Secured permits and ensured the installation passed all city inspections.

This work was completed over multiple days, reflecting the size and complexity of a professional rewiring and service upgrade.

The Results

The homeowner now has a safe, modern, and reliable electrical system capable of supporting their home’s needs for years to come. With a new panel, updated wiring, and code-compliant service connections, the system is built to handle modern appliances, future upgrades, and provide critical protection against electrical hazards.

Key benefits after the upgrade:

Increased panel capacity for future electrical additions
Safer, up-to-code wiring and service connections
Improved reliability and reduced risk of overloads or shorts
Peace of mind backed by Mainstream’s licensed electrical expertise

Trusted Electrical Experts in Spokane

Major electrical work—like panel upgrades and rewiring—requires precision, permitting, and deep knowledge of local codes. Mainstream Electric has been serving Spokane homeowners for over two decades, delivering safe, professional installations that protect your home for the long haul.

Mainstream Electric has over 20 years of experience handling complex electrical upgrades in Spokane. From modern service panels to whole-home rewiring, our team ensures every project is code-compliant, permitted, and built to last.

If your panel is outdated, your lights flicker, or your breakers trip often, it may be time to consider a panel upgrade or rewiring project. Contact Mainstream today to schedule your electrical inspection and get expert guidance on modernizing your home’s power.