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Gigawatts Electric LLC

Electricians in O'Fallon, Missouri
Ranked #4 in O'Fallon | Grade C+
4.90 (205 reviews)

Gigawatts Electric LLC

Local electrical contractor offering residential and light commercial service, remodel wiring, lighting, panel and circuit work, and code corrections. Known for responsive scheduling, clear communication, and safety-focused workmanship Serving homeowners across O'Fallon, Missouri.

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Gigawatts Electric LLC business photo 2 - Electrical in O'Fallon
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Why Homeowners Choose This Business

Projects are planned carefully, work areas are kept orderly, and timelines are communicated. Technicians explain options and resolve unforeseen issues with safety in mind. Local office presence in O'Fallon, Missouri supports quick scheduling and follow-up.

Service Area

Headquartered at 1025 Cool Springs Industrial Dr, O'Fallon, Missouri 63366, serving O’Fallon and surrounding St. Charles County and St. Louis metro communities.

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Listing details

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  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
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How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Electrical Services
  Electrical repairs
  Emergency Electrical
  Panel upgrades
  Circuit Installation
  Installations
  Lighting installation
  Remodel Wiring
  Repairs
  Basement Wiring
  EV Charger Circuit
  Dedicated Outlet Installation
  Code corrections
  Commercial Electrical Service
  Electrical Troubleshooting
  Outdoor Lighting

Services include electrical troubleshooting and repairs, lighting installation, panel and circuit upgrades, EV charger circuits, dedicated outlets, code corrections, remodel and basement wiring, and light commercial service.

Reviews

Customer Reviews

Zachary Hefner
Gavin was super helpful getting my emergency lighting batteries replaced. He was quick and easy to work with. Gigawatts responded to my initial call quickly and understood my tight timeline that I was under. I highly recommend!
Christopher Saul
We had Gigawatts Electric fix our electrical line to our detached garage and resolve the complex mess of wires on our back patio and front porch. Gavin, Bob, and Mason were a pleasure to work with and I really enjoyed them being here! Very…
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We had Gigawatts Electric fix our electrical line to our detached garage and resolve the complex mess of wires on our back patio and front porch. Gavin, Bob, and Mason were a pleasure to work with and I really enjoyed them being here! Very professional and efficient team. They made sure everything was safe and were even able to address some unforeseen issues. We have an older home with very outdated wiring. Everything came out better than I expected. Great company, great people, and I’m glad I was connected to them for my project.
Katie Clemens
So great working with Gigawatts Electric! Everyone is very professional and easy to work with. They definitely are knowledgeable and can handle basic to complex projects. The owner Mike is great and puts the customer first. Definitely recom…
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So great working with Gigawatts Electric! Everyone is very professional and easy to work with. They definitely are knowledgeable and can handle basic to complex projects. The owner Mike is great and puts the customer first. Definitely recommend!
Mike Zuniga
Dan and Mason were in our home multiple times for a large reno project in our basement. Their professionalism and expertise was greatly appreciated. Well thought out plan and great execution. Highly recommend both of them! Thank you very mu…
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Dan and Mason were in our home multiple times for a large reno project in our basement. Their professionalism and expertise was greatly appreciated. Well thought out plan and great execution.
Highly recommend both of them!
Thank you very much, super pleased with all of the work you completed.
Harry K
I know these guys since I completed my basement via Meyer Contracting, Gigawatts team did a great and neat job in completing the electrical work hence I called them back to install a 25amps socket for my newly purchased TV stand with firepl…
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I know these guys since I completed my basement via Meyer Contracting, Gigawatts team did a great and neat job in completing the electrical work hence I called them back to install a 25amps socket for my newly purchased TV stand with fireplace which requires 25amps and not 15amps. First Mike came in, to give me the quote and a week after Noah and Mason came to perform the installation, right from pulling the cables from basement till completion of job, very neat and professional work. Really appreciate them. I have recommended Gigawatts to many of my friends. Once again Kudos team!!

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Special Offers

Emergency Service

Emergency service may be available for urgent issues.

Frequently Asked Questions

They work on residential and light commercial projects, including repairs, lighting, panel work, dedicated circuits, and remodel wiring. Reviewers also mention help with complex wiring corrections and older-home upgrades.

Yes, customer feedback mentions successful updates in homes with older wiring and resolving messy or confusing setups. Technicians focus on safety, code compliance, and practical solutions.

Reviews suggest the office responds quickly and aims to accommodate tight timelines when possible. Actual availability varies by workload and project scope.

Based on customer notes, an upfront visit or discussion is common to outline scope and pricing. Final details depend on site conditions and any unforeseen issues discovered.

They are based in O’Fallon and work throughout nearby communities in the St. Charles County and St. Louis metro area. Exact availability can be confirmed when you call.
 Verified Listing

Opening Hours

  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details

Business Rating
4.90 (205 reviews) Featured BusinessPro Listing
Address
1025 Cool Springs Industrial Dr, O'Fallon, MO 63366
Business Type
Electrician
Website
http://www.gigawattselectric.com/
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