Mon-Fri 7:00am-4:30pm  •  Sat 8:00am-12:00pm 3121 Washington Blvd., St. Louis, MO 63103
Technician rewinding an electric motor stator with copper wire
Granite City, IL

AC Motor Repair for Granite City's Hardest-Working Systems

From steel-town industrial equipment to residential HVAC off Nameoki Road, Granite City runs on motors. When one quits, we repair it, replace it, or sell you the wholesale stock to do it yourself.

Repair + Wholesale

Factory-Trained Repair, Contractor-Friendly Pricing

Our technicians handle everything from minor electrical issues to full motor rebuilds, with advanced diagnostic tools doing the deciding. And for contractors, building managers, and HVAC pros around Granite City, our wholesale AC motor program makes sourcing parts affordable at volume.

In-stock inventory covers residential HVAC systems, commercial rooftop units, industrial cooling equipment, and the custom and hard-to-find models this town's older buildings demand. Bring the nameplate data, or the whole motor, and we'll match it.

Technician repairing an air conditioning motor for a Granite City, IL customer
Keep It Running

AC Motor Maintenance That Prevents the Next Repair

Four habits extend motor life: clean the vents monthly so dust doesn't cause overheating. Lubricate motors that require it to cut friction and wear. Check electrical connections, since loose wiring causes failures and shorts. And monitor performance, because unusual noises and falling airflow are the early warnings.

Getting here: Granite City to the shop is about 15 minutes: Route 3 south to I-55/I-70 west, across the river, exit Grand Blvd. Closer than the parts counter wait times you're used to.

4.8from 132 Google reviews
"Fantastic service. These guys know everything there is to know when it comes to motors."
Kim K. Counter service
"What an amazing family business they have! There's a reason businesses all over the Midwest have trusted CEMSI for decades."
Jeremy R. Midwest business
"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
Questions

Frequently Asked Questions

What's included in your AC motor repair?
Full inspection, diagnosis, and performance testing. We clean internal components, replace worn parts, and verify alignment and wiring, restoring the system to working condition quickly and cost-effectively.
How do I know if I need motor repair?
Strange noises, weak airflow, irregular cycling, failure to start, warm air, or an overheating motor. Acting early avoids the cascading failures that turn a motor repair into a system replacement.
Do you sell AC motors in Granite City?
Yes, the full range, including top brands and hard-to-find models, with help matching horsepower, voltage, RPM, frame size, and shaft type.
Can I buy wholesale air conditioner motors?
Yes. Our wholesale program serves HVAC contractors, repair shops, and property managers with competitive pricing and bulk availability.
What's the best way to choose a replacement motor?
Bring the old motor or its nameplate data. We match frame size, shaft type, voltage, and speed to ensure performance, or recommend a suitable upgrade.

Motor Down? Pick It Up Today or We'll Ship It Today.

Grab it at our Midtown St. Louis counter, or call before noon and in-stock motors and parts go out same day, anywhere in the country.

Call (314) 531-1888 Now
Call Now Find My Motor