Serving the St. Louis Region Since 1948
Industrial Electrical Services in St. Louis
3-phase service entrance, motor control, UPS, and emergency power for manufacturing
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Licensed Master Electricians
Field-trained team with decades of experience
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Meets all local electrical codes
75+ Years in Business
Serving St. Louis since 1948
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Industrial Electrical Services
Our Services:
More Information:
- (314) 837-3308
- info@kaybeeelectric.com
- 250 St. Francois St., Florissant, MO 63031
- Mon–Thu: 8AM–4:30PM · Fri: 8AM–3:30PM
- Free Site Walk-Throughs
Industrial Electrical Contractor for the St. Louis Manufacturing Corridor
Kay-Bee Electric has been doing industrial electrical work in St. Louis for more than 75 years. Industrial service installations run differently than commercial work: large power services, three-phase distribution, and clients who cannot tolerate downtime on the production floor. Our master electricians and journeymen know the tolerances that industrial facilities require, and they work on permit under the supervision of our in-house engineering staff.
Common industrial electrical scopes we run across St. Louis County, St. Charles County, and Jefferson County:
- 3-phase service entrance upgrades, switchgear, and feeder runs for new production equipment
- Motor control centers (MCCs), variable frequency drives (VFDs), and soft-start installations
- NFPA 70E arc-flash studies, labeling, and PPE coordination for plant electrical safety
- Uninterruptible Power Supplies (UPS), emergency lighting, and back-up power systems for production continuity
- Hazardous-location wiring per NEC Article 500 where flammable processes or dusts are present
Our engineers and designers have scope across every aspect of an industrial facility, from the service entrance to the last branch circuit on the production floor. Learn more about industrial electrical safety at NFPA.org and process energy efficiency at Energy.gov.



Emergency Power, Damage Recovery, and Plant Continuity
Your emergency power requirements can all be installed by Kay-Bee, including emergency lighting, Uninterruptible Power Supplies (UPS), generator paralleling, and full back-up power systems. Our engineering staff will work with you to establish your requirements, size the generator and ATS correctly, and make sure your installation keeps the plant up and running through utility outages, voltage sags, and weather events.
- Free electrical construction cost estimation on new service entrance and equipment installations
- Damage recovery after fire, flood, lightning strikes, or production equipment failures
- Generator sizing, ATS coordination, and load-bank testing per NFPA 110 on critical loads
- 24/7 emergency response on contract for production-down events and equipment failures
- Scheduled maintenance agreements with quarterly panel infrared scans and switchgear inspections
For ground-up plant projects with full engineering scope, see our Electrical Design & Build page. For commercial fit-outs and tenant work, see Commercial Services. For dedicated backup power scope, see Backup Power.
Our Clients Testimonials
EXCELLENT Based on 73 reviews Posted on Google Cody WeibleTrustindex verifies that the original source of the review is Google. Steve was friendly and professional, completed all tasks in a timely manner. Would use Kay Bee again for any electrical needs.Posted on Google Kim SimonTrustindex verifies that the original source of the review is Google. They did a great job. Came to the house right on time for the appointment. It did not take long to get someone to come over just a couple days for a nonemergency request. Pricing was very reasonablePosted on Google Brendan JamesTrustindex verifies that the original source of the review is Google. Jake came out and did a fantastic job figuring out where my problem was and getting it fixed right away! KayBee is the only electrical company I’ve ever used and couldn’t imagine anyone else providing better service and pricing!Posted on Google Mr. Tron Lamonte BentleyTrustindex verifies that the original source of the review is Google. They do great work and I highly recommend them for any electrical issues you may have.Posted on Google Allyson FoleyTrustindex verifies that the original source of the review is Google. Excellent job!!Posted on Google Mary WeinmanTrustindex verifies that the original source of the review is Google. Beyond impressed and satisfied with Kay Bee Electric! They were kind, efficient, quick, knowledgeable, trustworthy and did a fantastic job. Corrected the issue without trying to sell us on much more costly work another company had insisted we “had to have” at the cost of thousands of dollars and Kay Bee fixed the issue to code for under $300. HIGHLY recommend!Posted on Google Rebecca CaldwellTrustindex verifies that the original source of the review is Google. I have used Kay Bee three different times and all have been great! We have had a variety of jobs done; total replacement of electrical panel to upgrade it, moved an electrical outlet to higher in the wall for tv, replaced four lights with wafer lighting, and updated all electrical boxes on our main floor). They take care of you in a couple of days and offer a good price. They brought all materials needed, and when I added more tasks, Scott called the main office and had the supplies delivered that day so he could complete the job. You can trust them to take care of you without killing the bank account. This last time, Scott came out and he did a super job. He has worked for the company for over 20 years, that says something about the company.
Serving the Greater St. Louis Area
St. Louis County
St. Charles County
Frequently Asked Questions
Planning a service upgrade, an equipment install, or a generator project for your plant? Call (314) 837-3308 or request a site walk-through across the St. Louis manufacturing corridor.
Yes. We can perform the arc-flash hazard analysis (or coordinate with your existing engineering consultant), produce the labels and the boundary calcs, and update them whenever your service entrance or major loads change. Arc-flash labeling is required on every panel, switchgear, MCC, and disconnect under NFPA 70E. We can also coordinate the PPE category requirements with your plant safety lead so your team has the correct gear on the floor.
Yes, on contract. Industrial clients with a signed service agreement get 24/7 after-hours emergency response for production-down events, generator failures, and equipment outages. The response window depends on the agreement tier. For plants where unplanned downtime costs more than scheduled response time, we recommend the higher tier with on-call rotation. Talk to one of our representatives about the options that fit your operation.
Call us. We handle facility damage recovery from fire, flood, lightning strikes, accidents, and equipment failures. We will inspect the affected service entrance, switchgear, and branch wiring, determine what is salvageable versus what needs replacement, coordinate with your insurance adjuster on the scope and the cost, and run the rebuild on permit so your plant comes back online with documented, code-compliant work.