Top-rated generator installers.

Get matched with top generator installers in Webster Groves, MO

There are 4 highly-rated local generator installers.

Generator installers in Webster Groves

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
1656 HEADLAND DR
1.00(
1
)
Approved Pro
Tri-State Water, Power & Air
1656 HEADLAND DR
1.00(
1
)
Approved Pro
201 local quotes requested
33 years of experience

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


Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
2060 Craigshire Road
4.73(
15
)
Approved Pro
Power Up Electrical Contractors, LLC
2060 Craigshire Road
4.73(
15
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
301 local quotes requested

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


Avatar for Hanks Handyman Services
Hanks Handyman Services
3424 Commonwealth Ave
New on HomeAdvisorNew on Angi
Approved Pro
Hanks Handyman Services
3424 Commonwealth Ave
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite 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!


Avatar for MGSTL, LLC
MGSTL, LLC
1650 N Warson Rd
4.30(
5
)
Approved Pro
MGSTL, LLC
1650 N Warson Rd
4.30(
5
)
Approved Pro
Customers say: True professional
15 years of experience
Emergency services offered

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


Avatar for JMD Electric, LLC
JMD Electric, LLC
141 Alta Mira Ct
4.97(
16
)
Approved Pro
JMD Electric, LLC
141 Alta Mira Ct
4.97(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.

"Mike is great, would recommend to anyone!"

Neil B on June 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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.

"Mike is great, would recommend to anyone!"

Neil B on June 2024


Electric Vehicle Charging Station, LLC
26 Elmdale Lane
New on HomeAdvisorNew on Angi
Approved Pro
Electric Vehicle Charging Station, LLC
26 Elmdale Lane
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite 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!

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!


Avatar for M.A.R. Electric
M.A.R. Electric
8541 Elgin Avenue
4.75(
6
)
Approved Pro
M.A.R. Electric
8541 Elgin Avenue
4.75(
6
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Review by JC & LaRue Winfrey I was so pleased with Del he actually worked us in that day to get new Light Switches in for us he told us we could buy our own switches and he came and popped them right in !"

LaRue W on October 2021

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"Review by JC & LaRue Winfrey I was so pleased with Del he actually worked us in that day to get new Light Switches in for us he told us we could buy our own switches and he came and popped them right in !"

LaRue W on October 2021


Avatar for Nightscapes Outdoor Lighting
Nightscapes Outdoor Lighting
101 Didion Dr
4.94(
9
)
Approved Pro
Nightscapes Outdoor Lighting
101 Didion Dr
4.94(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

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!

"Fred is great and did the job quickly, professionally, and the outcome is superb"

Mike K on December 2023

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!

"Fred is great and did the job quickly, professionally, and the outcome is superb"

Mike K on December 2023


Avatar for Custom Technology Solutions
Custom Technology Solutions
9632 Persimmon Point Drive
4.81(
8
)
Approved Pro
Custom Technology Solutions
9632 Persimmon Point Drive
4.81(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

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. We’re 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. We’re 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


Avatar for C&R Communications
C&R Communications
3646 Arpent Street
4.86(
11
)
Approved Pro
C&R Communications
3646 Arpent Street
4.86(
11
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

At C&R Communications, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer’s 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 consumer’s 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

Showing 1-10 of 48

FAQs for generator installation projects in Webster Groves, 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

The Webster Groves, MO homeowners’ guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
Generator transfer switch
Feb 10, 2025
Feb 10, 2025
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
A mother assisting her daughter with homework
Jul 24, 2024
Jul 24, 2024
Keeping on top of generator maintenance and repairs gives you extra peace of mind as a homeowner. Find out how much regular generator maintenance costs.
A portable inverter generator
May 22, 2025
May 22, 2025
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.
House natural gas backup generator
Mar 24, 2025
Mar 24, 2025
Generators are a home essential when a power outage strikes. Compare home standby generators vs backup battery systems to find the best one for you.
outdoor diesel power generator
Apr 1, 2025
Apr 1, 2025
Diesel remains a popular fuel option for a variety of home generators, but you will need to plan your maintenance carefully. Here’s how it works.
Exterior view of a modern house
Mar 26, 2025
Mar 26, 2025
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.
Share project details to get started.