Electrical Panel Installation in St. Louis

Electrical Panel Replacement Services Throughout St. Charles & St. Louis Counties

The electrical panel is the central nervous system of your home. Every circuit, every outlet, and every appliance traces back to it, and when it's not up to the job, the rest of the system suffers. 

Panels rarely fail suddenly; they age, they get overloaded, and they eventually stop keeping pace with the demands of modern living. For many St. Louis homeowners, the panel installed when the house was built hasn’t been touched since, and the needs of the household it was designed to serve look very different from those of the household using it today.

Potts Electric handles panel replacements, upgrades, and smart panel installations for homeowners throughout the St. Louis metro. Our licensed team pulls permits, conducts inspections, and takes the time to confirm the work is done correctly and to code before packing up and heading home.

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Why Upgrading Your Electrical Panel Is One of the Smartest Home Investments

Your electrical panel is the command center of your home’s power. If it’s undersized, outdated, or showing signs of wear, it can limit your comfort, prevent upgrades, and create safety concerns. Potts Electric, LLC helps homeowners and business owners in St. Louis, MO and across the St. Louis area modernize their electrical service so it’s ready for today’s demands—and tomorrow’s.

Common Reasons Customers Replace a Panel:

• You’re adding major appliances like an HVAC system, hot tub, EV charger, or a finished basement.
• Lights flicker or breakers trip frequently when using everyday devices.
• You smell burning or notice heat near the panel, or see corrosion/rust.
• Your panel is outdated (older styles may not meet modern safety expectations or may be hard to service).
• You want peace of mind knowing your home’s power is protected with modern breakers and proper grounding.

What You Get With a Modern Panel

• Improved safety with updated breakers, correct wire terminations, and code-compliant protection.
• More capacity for renovations and new technology without overloading circuits.
• Cleaner organization and labeling for easier troubleshooting in the future.
• Better reliability that reduces nuisance trips and power interruptions.

What to Expect From Potts Electric, LLC

We focus on doing the job correctly—starting with an on-site assessment of your current panel, service size, grounding/bonding, and load requirements. Then we recommend the right solution for your property and handle the details that matter, including safe shutoff procedures, neat workmanship, and clear communication from start to finish.

Electrical Panel Considerations for St. Louis Homeowners 

Homes across St. Louis County, St. Charles County, and Franklin County span a wide range of ages, and panel concerns tend to follow that pattern. 

Older homes in areas like Affton, Lemay, and South St. Louis City often still have 100-amp service panels, or in some cases fuse boxes, which weren’t built to handle modern electrical loads. For context, running a central air system, an electric dryer, a home office, and a Level 2 EV charger simultaneously on a 100-amp service is a stretch at best and a hazard at worst.

Upgrading to 200‑amp service can give you the headroom today’s households actually need.

Two panel brands come up regularly during inspections of older metro‑area homes: Federal Pacific and Zinsco. Both have documented histories of breaker failure, meaning the overcurrent protection the panel is supposed to provide may not function reliably. If your home has either of these panels, a replacement is worth prioritizing.

For newer homes or recent renovations, the question is often less about capacity and more about whether the panel is appropriately configured, with circuits correctly sized, breakers properly labeled, and protective devices like AFCI breakers installed where current code requires them.

What to Expect During an Electrical Panel Upgrade

A panel upgrade begins before anyone touches a wire.

• The first step is an assessment of your current service, your household's electrical load, and the upgrade's objectives. For most homes, that means moving from a 100-amp or 150-amp service to a 200-amp panel, though some larger homes or properties with significant electrical additions may require more. Potts Electric performs this evaluation upfront so the scope of work and the cost are clear before anything is scheduled.
• On installation day, the process starts with a service disconnection coordinated with Ameren Missouri. With power safely off, the old panel is removed, and the new one is installed, wired, and labeled. Existing circuits are reconnected and inspected in the process, which sometimes surfaces wiring conditions worth addressing while the panel is open and accessible. Most residential panel upgrades are completed in a single day, and power is restored before our team leaves the job.
• The final step is inspection. Panel upgrades require a permit in virtually every municipality across the St. Louis metro, and the work must be inspected by the local authority having jurisdiction before it is considered complete. 

Potts Electric manages the permit application and coordinates the inspection as part of every panel upgrade project, so homeowners do not have to navigate that process on their own.

Schedule service for your electrical panels in St. Louis today. Call Potts Electric at (636) 322-2006 or contact us online to get started. Remember: upfront pricing and a free safety inspection are always part of the deal.