Panel Upgrade · Franklin County & St. Louis, MO
If your home still runs on a 60-, 100-, or 150-amp panel — or you're seeing tripped breakers, flickering lights, or scorched outlets — it's time for a panel upgrade. CAS Electric installs 200-amp and 400-amp service upgrades across Franklin County and the Greater St. Louis area, pulls the permit, coordinates with Ameren, and gets you inspected the first time.
Typical 200-amp residential service upgrades in the St. Louis area run $1,500–$4,500 depending on meter relocation, grounding, and Ameren coordination. We give you a flat written price before any work starts.
We look at your existing service, panel location, grounding, and what's feeding it from Ameren. You get a flat, written quote.
We pull the electrical permit and schedule the disconnect/reconnect with your utility so you're not chasing paperwork.
New meter base, service entrance, panel, grounding, and breakers — most residential upgrades wrap in a single day.
The inspector signs off, power is restored, and you get the labeled panel directory before we leave.
Most 200-amp residential upgrades in Franklin County and the St. Louis area fall between $1,500 and $4,500. Cost depends on the existing service, whether the meter has to move, grounding upgrades, and how far the breaker panel sits from the meter. We give a flat written quote — no hourly surprises.
Yes. A service or panel upgrade requires a permit and an inspection in every Franklin County and St. Louis-area jurisdiction. We pull the permit, schedule the inspection, and coordinate the disconnect/reconnect with Ameren so you don't have to.
If you're adding an EV charger, a hot tub, central A/C, an addition, or an electric range/dryer to an older home, 100 amps is usually not enough headroom. 200 amps is the modern residential standard and is what insurers and appraisers expect to see.
Most straightforward 200-amp residential upgrades are a one-day job. Power is off for several hours while we swap the service entrance, meter base, and panel. We schedule the inspection and reconnect for the same day whenever possible.
Yes — those are the most common panels we replace. Federal Pacific (Stab-Lok) and Zinsco panels are known fire/safety hazards and many insurers won't cover homes that still have them. We swap them for a modern 200-amp panel and bring grounding up to current NEC code.
Licensed, insured, owner-operated. We respond to all estimates within 1 business day.