
From quick repairs to full electrical installations, Mundwiller Electric delivers safe, dependable solutions to the Eastern Missouri area backed by generations of experience. Quality workmanship, honest service, and affordable pricing — done right the first time.
We are proud to serve our local community in Franklin, Warren, Gasconade, St Charles, and Montgomery Counties.
Your home depends on safe, reliable electrical systems every single day. At Mundwiller Electric, we provide professional residential electrical services designed to keep your home powered, efficient, and up to today’s standards. Whether you’re upgrading an older electrical panel, installing new lighting, adding an EV charger, or troubleshooting ongoing electrical issues, our experienced team delivers quality workmanship with safety and reliability at the forefront. From simple repairs to modern home upgrades, we help homeowners create spaces that are safer, smarter, and built for the way families live today.
Electrical Panel Upgrades (200A & 400A)
Outlet & Switch Repair/Installation
GFCI Outlet Installation
LED & Recessed Lighting Installation
Chandelier & Dimmer Installation
EV Charger Installation
Electrical Troubleshooting & Repairs
Flickering Light & Breaker Diagnostics
Ceiling Fan Installation
Whole-Home Surge Protection
Smart Home Technology Installation
Security Camera Wiring
Smart Switch & Thermostat Installation
Smoke & Carbon Monoxide Detector Installation
Home Electrical Safety Inspections
Older Home Electrical Upgrades & Repairs
AND MORE

At Mundwiller Electric, we understand that commercial electrical work requires speed, precision, and dependable service you can trust. From emergency repairs and troubleshooting to full electrical upgrades and tenant build-outs, our team helps businesses minimize downtime while keeping operations safe, efficient, and up to code. Whether you manage an office, retail space, restaurant, warehouse, or commercial facility, we provide reliable electrical solutions tailored to the demands of your business with professional workmanship and responsive service every step of the way.
Emergency Electrical Repairs
Commercial Electrical Troubleshooting
Power Outage & Breaker Diagnostics
Safety Inspections & Code Compliance
LED Lighting Retrofits
Interior & Exterior Commercial Lighting
Parking Lot & Security Lighting
Emergency & Exit Lighting Installation
Electrical Panel Upgrades & Replacements
Backup Generator Installation & Service
Commercial EV Charger Installation
Dedicated Circuit Installation
Tenant Improvements & Build-Outs
Office, Retail & Restaurant Wiring
Data & Low-Voltage Cabling
POS System & Security Wiring
HVAC Control Wiring
Commercial Electrical Maintenance
Code Violation Corrections
Preventative Electrical Inspections
Equipment & Machinery Power Solutions
AND MORE

Building a new home is your opportunity to create a space that fits the way you live — and the right electrical plan makes all the difference. At Mundwiller Electric, we work with homeowners and builders to design and install safe, efficient, and modern electrical systems tailored to your lifestyle. From custom lighting layouts and smart home integration to upgraded outlets, EV chargers, and dedicated appliance circuits, our team helps bring comfort, convenience, and functionality into every room. We focus on quality workmanship, thoughtful design, and reliable installation so your new home is built for both today and the future.
Recessed & LED Lighting Installation
Custom Chandeliers & Pendant Lighting
Exterior & Landscape Lighting
Patio & Walkway Lighting
Under-Cabinet Kitchen Lighting
Custom Outlet Placement
USB Outlet Installation
Floor Outlet Installation
Dimmer Switch Installation
Smart Home Integration
Smart Thermostats & Smart Switches
Smart Lighting Control Systems
Video Doorbell & Security Camera Wiring
Whole-Home Surge Protection
EV Charger Installation
Ceiling Fan Installation
Smoke & Carbon Monoxide Detector Installation
Dedicated Appliance Circuits
Hot Tub & Specialty Equipment Wiring
Backup Generator Preparation & Interlock Kits
Electrical Panel & Circuit Upgrades

Today’s homes are smarter, more connected, and more convenient than ever before. At Mundwiller Electric, we help homeowners bring modern technology seamlessly into their everyday lives with professional smart home and automation solutions. From smart lighting and security systems to Wi-Fi thermostats, motorized blinds, and EV charger installations, our team delivers safe, reliable integration designed for comfort, convenience, and efficiency. Whether you’re building a fully connected smart home or upgrading a few key features, we provide expert installation and dependable performance you can count on.
Smart Lighting Installation
Smart Switch & Dimmer Installation
Lutron Lighting & Dimming Systems
Motion Sensor Lighting
Smart Thermostat Installation
Energy Monitoring Systems
Smart Electrical Panel Upgrades
Video Doorbell Installation
Security Camera Wiring & Installation
Smart Door Lock Installation
Motorized Blind & Shade Integration
Smart Appliance Wiring & Setup
Home Automation Hub Setup
Google Home & Amazon Alexa Integration
Structured Wiring & Network Preparation
EV Charger Installation
Electrical Panel Upgrades for Smart Homes
Whole-Home Smart System Integration

Residential | Commercial | Construction | Panel Repairs + Upgrades | Event + Permanent Lighting and MORE!
Breaker Replacement
Circuit Additions
Code Compliance
Commercial Electrical
Controls
Dimmers
Electrical Inspection
Electrical Repairs
Emergency and Safety-Related
Equipment Wiring
EV Charger Installation
Exit Lighting
Fault Finding
Garage Power Upgrades
Generators
GFCI
Hazardous Location & Explosion-Proof Installation
Industrial Controls
Industrial Electrical
Interior & Exterior Lighting Installations
Lighting
Machinery
Manufacturing Lines
Motor Hookups
Outlets
Panels
PLC Systems
Power Distribution
Process Power
Residential Electrical
Safety Inspections
Rewiring
Service Contracts
Service Panel Upgrades
Signage
Smoke and CO2 Detectors
Specialized & Industrial
Subpanels
Surge Protection
Switches
Three-Phase Power
Troubleshooting
Upgrades
UPS
Wiring
AND MORE!
We understand there can be a lot of questions when it comes to your home or business’s electrical needs - here’s a few we get often:
How much does an electrical service call cost?
The cost of a service call can vary depending on the nature of the issue, the time required, and the scope of work involved. In most cases, homeowners can expect a typical service call to range between $150–$450. After evaluating the issue, our technicians will discuss your options and provide clear, straightforward pricing before any work begins.
Do you offer financing?
Yes — we offer financing options to help make electrical projects more manageable for homeowners and businesses. Our financing partners provide simple application options and flexible payment plans for qualifying customers. Whether you’re planning an upgrade, repair, or larger installation project, we’re happy to help you explore available financing solutions.
Residential electrical service focuses on single-family homes and smaller residential properties, including services like lighting, panel upgrades, generators, remodels, and home electrical repairs. Commercial electrical service involves larger-scale systems for businesses and commercial properties such as multi-family buildings, churches, retail stores, factories, offices, sports complexes, and more. Commercial projects often require more complex electrical systems, higher power demands, and specialized equipment to support larger operations.
Yes — we install EV chargers for both residential and commercial properties. With so many charger options available today, choosing the right setup depends on your vehicle, charging needs, and installation location. Our team can help you select the right charger for your space, or we can professionally install a customer-provided unit. We’ll make sure your electrical system is properly prepared for safe, reliable charging at home or your business.
Yes — smoke alarms do require regular maintenance to ensure they continue working properly when you need them most. We recommend testing your alarms monthly, replacing batteries at least once a year, and cleaning them regularly to prevent dust buildup that can affect performance. Most smoke alarms should also be completely replaced every 10 years, as the sensors become less reliable over time. If your alarm is chirping, giving false alarms, or you’re unsure of its age, it may be time for a replacement. Keeping smoke alarms properly maintained is one of the simplest ways to help protect your home and family.
If a breaker trips when your dryer is running in a new construction home, it could be caused by an overloaded circuit, an improper wiring connection, or a sensitive AFCI breaker detecting a potential issue. Newer dryers require a dedicated 220–240V circuit, and even a small wiring problem or loose connection can cause the breaker to trip as a safety precaution. In some cases, the issue may also stem from the dryer itself or an incompatible breaker setup. Because the home is newly built, this type of issue is often related to installation and may be covered under your builder’s warranty. If the breaker continues to trip, it’s important to have the circuit and appliance inspected rather than repeatedly resetting it.
In newer homes, breakers are often more sensitive because they’re designed with updated safety technology like AFCI breakers (Arc Fault Circuit Interrupters). These breakers can trip when high-powered appliances like vacuums, hair dryers, or space heaters create electrical patterns that resemble a potential hazard. In many cases, it’s simply caused by too many devices running on the same circuit at once, but loose wiring connections, faulty appliances, or damaged cords can also trigger the breaker. While an occasional trip may not be unusual, frequent tripping should always be inspected to rule out an underlying electrical issue. Resetting the breaker repeatedly without addressing the cause is never recommended.
Usually, it comes down to one of a few things:
🔺 Your current panel may not safely handle your home’s electrical demand anymore
🔺 The panel could be outdated or showing signs of wear
🔺 Breakers may be failing or tripping frequently
🔺 Your system may no longer meet current electrical code standards
🔺 Your electrical panel is the heart of your home’s electrical system. When it’s overloaded, outdated, or not functioning properly, it can affect everything from everyday convenience to overall safety.
A panel upgrade isn’t always about “selling more work” — in many cases, it’s about making sure your home can safely and reliably handle modern electrical use.
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