*The Angi rating for Generator Install companies in Festus, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
*The HomeAdvisor rating for Generator Install companies in Festus, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
Last update on June 16, 2026
Serving Festus, MO and surrounding areas
Approved
In business since 1993
Free estimates
Emergency services offered
"Installed a back-up sump pump. Great job! Thank you!"
+3
Serving Festus, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2011
Free estimates
Emergency services offered
"It went great, I was selling my house and some electrical work was needed after the inspector flagged some things and closing date was coming quick. I got a hold of Jeff and he came to the house and said no problem we can take care of it. Very happy with the work that was done."
Serving Festus, MO and surrounding areas
Approved
Customers say: Quick response
"The installer was great. He answered all my questions and never got mad about it. He was friendly and worked fast. Great job."
Serving Festus, MO and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"Vinc came and gave estimate and was very professional. The original job turned into a bigger job and he handled that very well. He was upfront with us on any changes in cost and completed the project professionally and skillfully."
Serving Festus, MO and surrounding areas
Approved
In business since 2023
Offers commercial services
Lifestyle Contracting is an estimating and management company for sub contractors in the St. Louis and surrounding areas. Specializing in residential and commercial electrical services, we’ve teamed up with Pace Electric to offer the best in the industry. Let us help you to understand your home or businesses electrical system and assist in any installation.
Serving Festus, MO and surrounding areas
Approved (Corporate)
In business since 2024
Free estimates
Emergency services offered
Shinnova Power is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
Serving Festus, MO and surrounding areas
In business since 1975
Free estimates
Emergency services offered
"I had a great experience with them. Their bid was right in the middle where it should have been. The guy who showed up had estimated for 5-6 hours worth of work, and he ended up staying here for almost 9 hours, but they didn't charge me extra for it, and I was happy about that. He was able to run the wiring where I wanted it to run. There weren't all the cables showing and he was able to stick it through my wall, and that is why he ended up staying here for so long. I was really happy with the service. My biggest thing was that the guy stayed until the work was done, he didn't say he would come tomorrow even if it meant working overtime."
Serving Festus, MO and surrounding areas
In business since 2012
Free estimates
Emergency services offered
"Great! Quick notice to prepare install a gas stove that replaced a defective electric."
+7
Serving Festus, MO and surrounding areas
In business since 1999
Free estimates
Emergency services offered
"very friendly and helpful young man provided service to repair our kitchen electric outlet to the refrigerator."
+112
Serving Festus, MO and surrounding areas
In business since 2025
Credit card accepted
Offers commercial services
"I have had Eric do many projects for me from wiring a new garage to running circuits for my camper and welding equipment and also my wife’s kiln for pottery. He also put in several generator setups for several houses Also put in a bunch of can lights in our house Eric is efficient and reasonable in price also is very neat in your home and honest I would highly recommend using him for your projects for home and business"
+6
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a whole-house generator in St Louis, MO varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
