EV Charger Installation St. Louis, MO

St. Louis, MO homeowners can choose between Level 1 and Level 2 chargers. Each has its own benefits and drawbacks, so it's entirely up to you which to choose. A Level 1 charger comes with most electric vehicle purchases, and adds roughly 4 to 5 miles of range per hour on a standard 120V outlet, so you don’t need a special setup. Level 2 adds 20 to 30 miles per hour on a 240V circuit, so an overnight charge typically delivers a full or near-full battery by morning. However, they often require circuit, wiring, and panel work, making the installation more expensive.

The Electric Power Research Institute found that approximately 80% of EV charging occurs at home, and most drivers achieve the highest return on investment with a Level 2 charger. If your EV is a plug-in hybrid with a smaller battery, or if you drive fewer than 40 miles a day, a Level 1 setup at an existing outlet meets your needs without additional electrical work. But if you drive a full battery-electric vehicle daily, a Level 2 charger is worth the investment.

Yes. Installing a 240V circuit for a Level 2 EV charger in St. Louis requires an electrical permit from the City of St. Louis Building Division or the county building department, depending on your municipality. An inspection follows the work to confirm it meets the 2020 National Electrical Code, which Missouri adopted as its base standard.

Skipping the permit creates problems at resale. Home inspectors routinely flag unpermitted electrical work, and insurance claims related to that work can be denied.

A licensed electrician pulls the permit on your behalf and schedules the inspection, so you don't have to manage that process yourself.

A straightforward Level 2 charger installation on an existing 240V circuit takes two to four hours. If a new circuit needs to be run from the panel to the garage, plan for a half-day job. Panel upgrades extend the timeline further and may require a utility disconnect, which is scheduled in advance with Ameren Missouri. The permit inspection is a separate appointment scheduled after the installation is complete. Have your electrician walk you through the garage layout during the estimate. The distance from the panel to the charger location is the single biggest variable in both time and cost.

A Level 2 charger at 240V, 30 to 50 amps, requires spare capacity in your main panel. Most Level 2 chargers draw 24 to 40 amps continuously, so the NEC code requires a circuit rated at least 125% of that load. A 40-amp charger needs a 50-amp dedicated circuit.

Older St. Louis homes, particularly those in South City and the inner suburbs built from the 1940s through the 1970s, frequently have 100-amp service panels. Depending on existing loads, a 100-amp panel may accommodate a Level 2 charger, but it needs to be verified by a licensed electrician before installation. Homes with 200-amp service rarely need an upgrade for EV charging alone.

There are so many benefits to getting a home EV charging station installed in your garage, including the fact that it’s:

• It’s convenient
• It’s affordable
• It’s quick
• It’s cost-effective

Reap the benefits of our expert EV charging station installation services by calling our specialists at Mr. Electric of St. Louis when you need reliable EV charger installation near you.

St. Louis, MO residents can easily schedule service with one of our licensed electricians by calling our friendly customer care reps. At Mr. Electric of St. Louis, we pride ourselves on providing quality workmanship and expert installation services for electric car charging stations. Whether you need a Level 1 or a Level 2 EV charger installed in your garage for your electric car, leave it to our trusted local pros for reliable solutions.

Contact us today to book residential EV charger installation in St. Louis, MO. We also offer a wide range of other electrical services to help with other aspects of your home’s electrical system.