CAS Electric – Licensed Electrician Serving Franklin County & the Greater St. Louis Region
Residential Electrical • New Construction Wiring • Panel Upgrades • Lighting Installation • EV Charger Installation • Commercial Electrical
WHAT WE DO
Electrical Services in Franklin County & Greater St. Louis
Safe, code-compliant electrical services for homes and businesses throughout Franklin County and the Greater St. Louis region. Every job is handled by a licensed, insured electrician, not a subcontractor.
RESIDENTIAL ELECTRICAL
New Construction Wiring
Complete rough-in and finish wiring for new home builds. We work directly with builders and homeowners across Franklin County and the Greater St. Louis area to get your project wired right and ready for inspection on time.
Electrical Panel Upgrades
Old or undersized panel holding you back? We install new electrical panels that meet current NEC code and handle the demands of today's homes. Safe, clean, and done right the first time.
See Electrical Panel Upgrades detailsService Upgrades
We handle electrical service upgrades from 100-amp to 200-amp or 400-amp depending on your home’s needs. Whether you’re in an older home that needs more capacity or building a large custom home with high electrical demands, we manage the full upgrade from meter base to panel, coordinated with your utility company.
Lighting Installation
Interior, exterior, and landscape lighting installed by a licensed electrician. Recessed lighting, ceiling fans, outdoor security lights, and more. We make sure everything is wired safely and up to code.
EV Charger Installation
Level 2 home EV charger installation for all major vehicle brands. We assess your panel capacity, run the circuit, and install your charger — ready to charge overnight.
See EV Charger Installation detailsGenerator Hookups
Keep your home powered when the grid goes down. We install transfer switches and connect standby or portable generators safely to your home's electrical system — no backfeeding, no code violations.
Whole-House Surge Protection
Missouri storms and grid switching send voltage spikes straight into your home. We install Type 2 surge protectors at your panel to protect HVAC, appliances, EV chargers, and electronics — usually in under an hour.
See Whole-House Surge Protection detailsElectrical Troubleshooting & Repairs
Breakers tripping? Outlets not working? Flickering lights? We diagnose and fix electrical problems fast. Don't ignore electrical issues — they don't get better on their own.
COMMERCIAL ELECTRICAL
Commercial New Construction
We provide full electrical services for commercial new construction projects — from rough-in to final inspection. We work with general contractors and developers to keep your project on schedule and up to code across the Greater St. Louis region.
Tenant Finish
Opening a new business or renovating a commercial space? We handle all electrical work for tenant finish projects — panel work, circuits, lighting, and final connections — on schedule and to code.
Lighting Systems
Commercial lighting installation and upgrades for offices, warehouses, retail spaces, and more. We install energy-efficient LED systems that reduce your operating costs and meet code requirements.
Equipment Circuits
Dedicated circuits for commercial equipment, machinery, HVAC systems, and more. We size and install circuits correctly the first time so your equipment runs safely and efficiently.
Licensed & Insured • Free Estimates • Serving the Greater St. Louis Region
Where We Work
Serving Franklin County and the Greater St. Louis Region
CAS Electric provides licensed residential and commercial electrical services throughout Franklin County and the Greater St. Louis region. No matter where your project is located, you get the same licensed, insured electrician on every job.
Our Service Area Includes:
City Service Pages
Not sure if we cover your area? Call or text us at 314-852-8078. If we can get there, we'll get it done.
Who We Are
About CAS Electric
CAS Electric is a licensed, insured electrical contractor based in Pacific, Missouri — built on doing the job right the first time. We bring hands-on expertise to every project, serving homeowners, builders, and businesses throughout Franklin County and the Greater St. Louis region.
We specialize in residential new construction wiring, panel upgrades, EV charger installation, lighting, and commercial electrical work. Whether you’re building a new home or upgrading an older one, you get a licensed electrician on your job — not a subcontractor.
Licensed in Missouri • Fully Insured • Free Estimates • Fast Response
Testimonials
What Our Customers Say
Trusted by homeowners, builders, and businesses across Franklin County and the Greater St. Louis region.
"We had CAS Electric handle the electrical work while building our home, and I highly recommend them. Everything was clean, organized, and done right. Communication was easy, and they were always willing to answer questions and talk through ideas during the build. CAS Electric was reliable, knowledgeable, and great to work with from start to finish."
Tyler H.
New Construction Customer
"CAS Electric has been our go-to electrician for a number of projects at West County Roofing. We call them for electrical service work and solar panel removal and reinstall when we are doing roof replacements. They are reliable, knowledgeable, and always does high-quality electrical work. If you need a professional electrician in Franklin County or the greater St. Louis area, I highly recommend CAS Electric."
Dallas H.
Commercial Customer, West County Roofing
"CAS Electric did an outstanding job rewiring our 1920s home and replacing the electrical panel. Their pricing was very fair, communication was excellent throughout the entire process. If you're looking for an electrician who is reliable, honest, and does high-quality work, I would absolutely recommend CAS Electric. They were a great find!"
Tonya W.
Washington, MO
Portfolio
Recent Projects
Quality craftsmanship on every project.
Electrical Panel Installation – Clean & Code-Compliant
New Construction Wiring – Franklin County, MO
Exterior Lighting Installation – St Clair, MO
Kitchen Lighting & Electrical – Pacific, MO
Bathroom Electrical & Recessed Lighting – St Clair, MO
Pool Equipment Electrical – Villa Ridge, MO
The CAS Difference
Why Choose CAS Electric
Get In Touch
Get Your Free Estimate Today
Licensed electrician serving Franklin County and the Greater St. Louis region. We respond to all estimates within 1 business day. Call or text for faster response.