Three Generations Behind One Counter Since 1944
Commercial Electric Motor Service is what 80+ years of doing one thing well looks like: a family business with the Midwest's deepest motor stock and the knowledge to match anything you carry in.
Founded in 1944. Still Family-Owned. Still Answering the Phone.
Since 1944, Commercial Electric Motor Service has been servicing commercial electric motors and supplying AC and DC electric motors, controls, variable frequency drives, and technical support to businesses across the greater St. Louis area and, by freight and daily FedEx, the entire country.
Three generations of technical sales and support staff work the counter. That depth is why HVAC techs across the region know our staff by name, and why a customer with nothing but photos of a 50-year-old motor walks out with a solution.
What hasn't changed in eight decades is the way we approach electric motor servicing: a real person picks up the phone, the counter stays stocked, and the goal is always to get you the right motor the same day. It's a standard you can only hold when the name on the door still belongs to the family behind it.
Partnerships That Put 20 Top Brands on Our Shelves
Over the decades we've built partnerships with the industry's top suppliers: ABB, GE Motors, Emerson, Fasco, Marathon, Nidec, and more. That network gives us the Mid-West's largest stock of products at competitive prices, and a sourcing reach for the motors nobody stocks.
Whether you're a contractor repairing something for a client or a DIY-er fixing it yourself, the deal is the same: honest advice, the right part, and wiring configured before you leave.
"With only a few pictures, Doug was able to match a vintage motor over 50 years old. Had a new one in stock, and the staff even configured the wiring for a minimal fee."Grant G. Vintage motor match
"You will not find an electric motor shop more knowledgeable and better stocked than Commercial. 20-year customer and their knowledge always impresses me."James H. 20-year customer
"Great service and a go-to place for any of our motor needs. They get me what I need the first time! Definitely recommend this place to anyone in the business."Mike F. Trade professional
Frequently Asked Questions
Is CEMSI really family-owned?
Do you only serve businesses?
Come Meet the Counter
3121 Washington Blvd., Midtown St. Louis. Mon-Fri 7am-4:30pm, Sat 8am-noon.
Call (314) 531-1888 Now