Licensed Master Electrician Serving SE Wisconsin
Panel upgrades, EV chargers, rewiring & 24/7 emergency service. Family-owned since 2013. 111 five-star reviews.
What We Do
Professional electrical services for homes and businesses across SE Wisconsin
Panel Upgrades
100A to 200A+ upgrades. Permits handled. Code compliant.
EV Charger Installation
Level 2 chargers for Tesla, Ford, Chevy & all EVs. Same-week install.
Residential Wiring
New construction, remodels, rewiring. Knob & tube specialists.
Commercial Electrical
Offices, retail, restaurants. Minimal disruption.
Lighting & Design
Indoor, outdoor, landscape, security lighting.
Troubleshooting & Repair
Same-day fault diagnosis. Emergency service 24/7.
Generator Installation
Whole-home Generac standby generators.
24/7 Emergency
Power out? We answer. Call now.
Why Couillard Electric?
Six reasons SE Wisconsin homeowners and businesses choose us
12-Month Workmanship Warranty
Every job is backed by our written 12-month warranty on all work. If something isn't right, we fix it — no charge, no questions.
Vera AI — 24/7 Instant Response
Our AI assistant Vera answers calls and texts around the clock. Get estimates, schedule service, or report emergencies any time.
Same-Day Service Available
Electrical emergency? We offer same-day diagnostics and repairs. Most calls are answered within minutes, not hours.
We Handle All Permits
Permits, inspections, utility coordination — we manage the entire process. One call does it all, no runaround.
Local & Family-Owned
Based in Random Lake, serving 6 counties. We're your neighbors, not a national franchise. Proudly Wisconsin since 2013.
111 Five-Star Reviews
4.8-star average on Google with 111 reviews. Google Guaranteed, BBB A+, and Angi 5/5 rated.
How It Works
Three simple steps to get your electrical project done right
Call or Text
Call (262) 618-2851 or fill out our online form. We respond within minutes.
Free Estimate
We assess your project, explain your options, and provide a clear, upfront price. No surprises, no hidden fees.
Job Done Right
Licensed work, pulled permits, passed inspections. Backed by our 12-month workmanship warranty.
Recent Work
A sample of projects across SE Wisconsin
Panel Upgrade
200A service upgrade, new meter base, permits handled. Added dedicated circuits for workshop and HVAC.
EV Charger Install
Level 2 Tesla charger, dedicated 50A circuit, same-day install. New 60A circuit from main panel to garage.
Whole-Home Rewiring
1960s home, knob & tube removal, all-new wiring. New 200A service throughout.
Generator Install
Generac 22kW standby generator, automatic transfer switch. Whole-home backup power.
Landscape Lighting
24-fixture LED system, smart controls, 3 zones. Low-voltage landscape lighting design.
Commercial Buildout
Restaurant electrical, 3-phase, hood systems. Full buildout for 3,200 sq ft space.
What Customers Say
“FANTASTIC service! My homeowner's warranty sent Couillard out to fix my bathroom ceiling fan. Austin was GREAT! Extremely knowledgeable and friendly. He took the time to explain everything to me and also looked at some other projects I had in my home and is providing a quote. HIGHLY RECOMMEND Couillard Electric!”
“Great service in a timely fashion. My "home warranty" declined to pay for a necessary repair, and the technician explained the issues and my options. I had my problem solved in under an hour at an affordable, fair price. Will use again.”
“Had a Great experience with Couillard Electric today. Couillard was assigned to us through our Home Warranty company. They arrived on time, gave us a heads up prior to their arrival, and worked quickly to diagnose and resolve our issue.”
Dennis Couillard
Owner & Master Electrician
Meet Your Electrician
Dennis is a Wisconsin native and licensed master electrician who founded Couillard Electric in 2013. What started as a one-man operation has grown into a trusted name across six counties — but the commitment to quality, safety, and code compliance hasn't changed.
Every project is held to the highest standards, with proper permits pulled, thorough inspections completed, and work backed by our 12-month workmanship warranty.
- ✓WI Master Electrician License #1293757
- ✓Electrical Contractor License #1325885
- ✓DSPS Licensed · Expires 06/30/2027
- ✓Google Guaranteed
- ✓BBB Accredited Business — A+ Rating
- ✓12-Month Workmanship Warranty on All Work
Serving SE Wisconsin
Sheboygan, Ozaukee, Washington, Milwaukee & Waukesha Counties
Get Your Free Estimate
We respond within minutes via text
Frequently Asked Questions
Common questions about our electrical services
How much does an electrical panel upgrade cost in Wisconsin?+
A 200-amp electrical panel upgrade in Wisconsin typically costs $1,800 to $3,500 depending on your home's existing wiring, permit requirements, and whether the utility meter base needs replacement. Couillard Electric provides free estimates for all panel upgrades.
Do I need a permit for EV charger installation in Wisconsin?+
Yes, most Wisconsin municipalities require an electrical permit for Level 2 EV charger installation since it involves a dedicated 40-50 amp circuit. Couillard Electric handles all permit applications and inspections as part of our installation service.
What should I do if my circuit breaker keeps tripping?+
If a circuit breaker trips repeatedly, it may indicate an overloaded circuit, short circuit, or ground fault. Avoid repeatedly resetting it. Unplug devices on that circuit and call a licensed electrician. Repeated tripping can be a fire hazard.
How do I know if my home needs rewiring?+
Signs your home may need rewiring include: flickering lights, warm or discolored outlets, burning smell near outlets, two-prong outlets (ungrounded), aluminum wiring, knob-and-tube wiring, or a home built before 1970 that hasn't been updated.
Does Couillard Electric offer 24/7 emergency service?+
Yes. Couillard Electric provides 24/7 emergency electrical service throughout Southeast Wisconsin. Call (262) 618-2851 for urgent electrical issues or text (262) 667-7856 to reach our AI assistant Vera anytime.
What areas does Couillard Electric serve?+
Couillard Electric serves all of Southeast Wisconsin including Sheboygan County, Ozaukee County, Washington County, Milwaukee County, Waukesha County, and Racine County. Specific cities include Random Lake, Sheboygan, Port Washington, Grafton, Cedarburg, Mequon, West Bend, Milwaukee, Wauwatosa, and many more.