Get matched with top generator installers in Saint Louis, MO
There are 6 highly-rated local generator installers.
Verified Reviews for Generator Installation pros in Saint Louis, MO
*The Angi rating for Generator Installation companies in Saint Louis, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in Saint Louis, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on June 16, 2025
Generator installers in Saint Louis
We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.
"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."
James K on May 2025
We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.
"They initially contacted me via email ready to make a visit for the install. Said that they could do the project no problem. Then when they realized I wouldn’t be buying a generator from them, which I had TOLD them upfront, they canceled on me. That is not an acceptable way to do business. They should simply state that they only install generators that they sell and not waste my time."
James K on May 2025
We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards
"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."
Tim W on February 2025
We are a 4.9 star rating on Home Advisor/Angie's List. Licensed and Union. We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. We accept Check, Cash or Credit Cards
"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."
Tim W on February 2025
Lights & Switches has been serving Saint Louis and the surrounding areas for nearly 15 years with over 30 years of experience in the electrical industry. We are extremely passionate about the work we do and pride ourselves on providing a high quality service at an extremely affordable price. Customer service is our highest priority and we know building a loyal customer base is essential to the future success of our business. If you are looking for an electrician you can trust, please call Frank today for your free estimate!
Lights & Switches has been serving Saint Louis and the surrounding areas for nearly 15 years with over 30 years of experience in the electrical industry. We are extremely passionate about the work we do and pride ourselves on providing a high quality service at an extremely affordable price. Customer service is our highest priority and we know building a loyal customer base is essential to the future success of our business. If you are looking for an electrician you can trust, please call Frank today for your free estimate!
Hanks Handyman Services proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!
Hanks Handyman Services proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!
We work with our clients to help them wrangle the technology they use every day. We don't draw a distinction between home and business, we help ALL users attain the productivity they need with tech. Computers, Networks, Cloud Apps, Streaming Services, Phone Service, and Security - we can help our users - because those are the ones that need to USE the technology every day. We are here for you - no matter how small or big the job is.
"Very expensive and took two different visits by different techs and a long amount of time (3+ hours) to set up basic file sharing within a home network. This should have taken less time and one visit in my opinion."
Mark K on September 2024
We work with our clients to help them wrangle the technology they use every day. We don't draw a distinction between home and business, we help ALL users attain the productivity they need with tech. Computers, Networks, Cloud Apps, Streaming Services, Phone Service, and Security - we can help our users - because those are the ones that need to USE the technology every day. We are here for you - no matter how small or big the job is.
"Very expensive and took two different visits by different techs and a long amount of time (3+ hours) to set up basic file sharing within a home network. This should have taken less time and one visit in my opinion."
Mark K on September 2024
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!
Nightscapes Outdoor Lighting is proud to be a locally owned and operated business that has been serving the community since 2004. With years of experience and unmatched expertise we can help with any and all of your residential and commercial exterior lighting needs. From landscapes to parking lots, security to holidays we have a lighting solution for you. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. We will work with you on discovering exactly what you are wanting to accomplish and communicate through the process of making that a reality. Let us show you the Nightscapes Outdoor Lighting difference, get in touch today!
"My landscape lighting is several years old and was starting to need on-going maintenance. Fred made some suggestions that have made a world of difference on how the new LED lighting looks. Feel like it's a brand new installation. Would definitely recommend Night Scapes to anyone. Very professional with a very quick installation."
Jackie O on April 2020
Nightscapes Outdoor Lighting is proud to be a locally owned and operated business that has been serving the community since 2004. With years of experience and unmatched expertise we can help with any and all of your residential and commercial exterior lighting needs. From landscapes to parking lots, security to holidays we have a lighting solution for you. Since opening our doors we have built our business on providing our customers with the highest quality products and service at a fair price. We will work with you on discovering exactly what you are wanting to accomplish and communicate through the process of making that a reality. Let us show you the Nightscapes Outdoor Lighting difference, get in touch today!
"My landscape lighting is several years old and was starting to need on-going maintenance. Fred made some suggestions that have made a world of difference on how the new LED lighting looks. Feel like it's a brand new installation. Would definitely recommend Night Scapes to anyone. Very professional with a very quick installation."
Jackie O on April 2020
Where Highest Quality Meets Lowest Price! We offer over 18 years experience in the low-voltage Industry. We've established a solid reputation in security projects, home automation, home theater, TV installation and access points, phone and data communications for large executive homes, corporations, and residential homes across the country. We are licensed in both the city and the county. Were committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"This company is absolutely fantastic! Tony is so professional and a really great guy. He bid me a price for some work that turned out to be much more complicated than originally thought. He did not try and increase his price and did the work for the pre-determined rate. In addition, I had a tv he was supposed to hang that was brand new in the box. When he opened it, he discovered the screen was shattered. I was able to return the tv and he is coming back out on a separate trip to hang it. He has really gone above and beyond. I cannot recommend him more highly."
Dan M on December 2019
Where Highest Quality Meets Lowest Price! We offer over 18 years experience in the low-voltage Industry. We've established a solid reputation in security projects, home automation, home theater, TV installation and access points, phone and data communications for large executive homes, corporations, and residential homes across the country. We are licensed in both the city and the county. Were committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"This company is absolutely fantastic! Tony is so professional and a really great guy. He bid me a price for some work that turned out to be much more complicated than originally thought. He did not try and increase his price and did the work for the pre-determined rate. In addition, I had a tv he was supposed to hang that was brand new in the box. When he opened it, he discovered the screen was shattered. I was able to return the tv and he is coming back out on a separate trip to hang it. He has really gone above and beyond. I cannot recommend him more highly."
Dan M on December 2019
We offer over 25 years of experience the security and audio visual industries. We take on a wide range of projects to include Satellite Dish System as well as Security Systems and a variety of related jobs. Were committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"The owner of Electronics 9-1-1 installed an eight-camera home security system in my home. The entire experience, from initial consultation to finished product, was the model on which all other advertisers' services on Homeadvisor should be based! The company owner's recommendations about installation techniques, technical knowledge and considerations, equipment capabilities, scheduling accommodations, and modifications in mid-installation to overcome unforeseen issues were all spot-on, and resulted in a system that exceeded every expectation. Would use Electronics 9-1-1 again in a heartbeat, and it is a pleasure to recommend them to anyone needing security system installation or service of the highest quality."
LTC Karson K on August 2020
We offer over 25 years of experience the security and audio visual industries. We take on a wide range of projects to include Satellite Dish System as well as Security Systems and a variety of related jobs. Were committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
"The owner of Electronics 9-1-1 installed an eight-camera home security system in my home. The entire experience, from initial consultation to finished product, was the model on which all other advertisers' services on Homeadvisor should be based! The company owner's recommendations about installation techniques, technical knowledge and considerations, equipment capabilities, scheduling accommodations, and modifications in mid-installation to overcome unforeseen issues were all spot-on, and resulted in a system that exceeded every expectation. Would use Electronics 9-1-1 again in a heartbeat, and it is a pleasure to recommend them to anyone needing security system installation or service of the highest quality."
LTC Karson K on August 2020
At C&R Communications, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.
"showed up on time stayed until got everything figured out and installed"
Dave b on July 2023
At C&R Communications, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.
"showed up on time stayed until got everything figured out and installed"
Dave b on July 2023
FAQs for generator installation projects in Saint Louis, MO
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
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