Top-rated generator installers.

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There are 1 highly-rated local generator installers.

Generator installers in Festus

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
1656 HEADLAND DR
New on HomeAdvisorNew on Angi
Approved Pro
Tri-State Water, Power & Air
1656 HEADLAND DR
New on AngiNew on HomeAdvisor
Approved Pro
143 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.

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.


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 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


De Soto Ozark Electric Co.
PO Box 386
3.17(
3
)
Approved Pro
De Soto Ozark Electric Co.
PO Box 386
3.17(
3
)
Approved Pro
49 years of experience
Free onsite estimate

Welcome to De Soto Ozarks Electric Co., Owner and operator, Paul, takes great pride in his professionalism and customer satisfaction. Paul and his team are the experts you need to take care of your home! With over 15 years of experience we can handle any project you want with promptness and professionalism. We will always treat your home as we would our own and will make you our top priority. Give De Soto Ozarks Electric Co., a call today! You will not be disappointed. If reaching out please keep in mind we do have a $100 service call charge for travel time and first hour of labor.

"This business has no customer skills whatsoever. They do not respond. They do stupid stuff like they will like your message then come back and unlike your message but they will not respond to your message. I asked 3 times to just let me know if they were not interested or don?t come to my area and they refused to respond."

Ron S on July 2024

Welcome to De Soto Ozarks Electric Co., Owner and operator, Paul, takes great pride in his professionalism and customer satisfaction. Paul and his team are the experts you need to take care of your home! With over 15 years of experience we can handle any project you want with promptness and professionalism. We will always treat your home as we would our own and will make you our top priority. Give De Soto Ozarks Electric Co., a call today! You will not be disappointed. If reaching out please keep in mind we do have a $100 service call charge for travel time and first hour of labor.

"This business has no customer skills whatsoever. They do not respond. They do stupid stuff like they will like your message then come back and unlike your message but they will not respond to your message. I asked 3 times to just let me know if they were not interested or don?t come to my area and they refused to respond."

Ron S on July 2024


Avatar for Donohue's Lightning Rods
Donohue's Lightning Rods
501 North Las Vegas Trail, Lot D
4.89(
48
)
Approved Pro
Donohue's Lightning Rods
501 North Las Vegas Trail, Lot D
4.89(
48
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
45 local quotes requested

The modern suburban and small town home of today has become an ideal lightning target. The home owner would do well to recognize lightning for the destructive force that it is and protect against this major life and fire hazard. Donohue's Lightning Rods is based in Missouri, near the factory where most of the residential and commercial lightning rod supplies are manufactured. Jim travels regularly to Texas, Louisiana, Arkansas, Missouri, Kansas, Montana, Wyoming, Colorado, and New York. Call today to find out when Jim will be in your area. For installations outside Missouri, Kansas, or Texas, Jim waits until there are a few customers lined up, thus being able to provide the same quality services at affordable prices. **WE DO NOT DO ELECTRICAL SERVICES.** (ONLY LIGHTNING RODS)

"The man who did the job were awesome. They were very thorough, professional, and speedy. They left our church grounds spotless. I could not recommend them highly enough."

Betty Sue W on November 2023

The modern suburban and small town home of today has become an ideal lightning target. The home owner would do well to recognize lightning for the destructive force that it is and protect against this major life and fire hazard. Donohue's Lightning Rods is based in Missouri, near the factory where most of the residential and commercial lightning rod supplies are manufactured. Jim travels regularly to Texas, Louisiana, Arkansas, Missouri, Kansas, Montana, Wyoming, Colorado, and New York. Call today to find out when Jim will be in your area. For installations outside Missouri, Kansas, or Texas, Jim waits until there are a few customers lined up, thus being able to provide the same quality services at affordable prices. **WE DO NOT DO ELECTRICAL SERVICES.** (ONLY LIGHTNING RODS)

"The man who did the job were awesome. They were very thorough, professional, and speedy. They left our church grounds spotless. I could not recommend them highly enough."

Betty Sue W on November 2023


Avatar for SOHO Solutions
SOHO Solutions
3263 Yorkchester Dr
5.00(
3
)
Approved Pro
SOHO Solutions
3263 Yorkchester Dr
5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 years of experience

SOHO Solutions is committed to excellence 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

"Excellent work and excellent rate. Will use again in a few weeks."

Leroy G on March 2022

SOHO Solutions is committed to excellence 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

"Excellent work and excellent rate. Will use again in a few weeks."

Leroy G on March 2022


Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
1656 Headland Drive
4.00(
1
)
Approved Pro
Tri-State Water, Power & Air
1656 Headland Drive
4.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They performed everything they said would do."

Andrew H on August 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They performed everything they said would do."

Andrew H on August 2023


Tri-State Water, Power & Air
1656 HEADLAND DR
3.96(
24
)
Tri-State Water, Power & Air
1656 HEADLAND DR
3.96(
24
)
Customers say: Super punctual
217 local quotes requested

In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!

"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"

Jerry B on December 2024

In business since 1992, Tri-State prides itself on providing top notch services and products to it's many customers. Our Service Plumbing team is ready and willing to tackle your project - be the need immediate or not. Simply reach out and we will dispatch a technician immediately to provide a quote and solve your problem!

"Only rating 1 because it doesn't go lower. Had a new unit installed end of Sept 24. First time power goes out on 11/5, no electricity. When tri state sells you a product, they pitch their amazing customer service with all these guarnatees of knowing when your unit is out before you know and having someone there within 24 hours etc. Well, the first call we make we are told it will be the end of Nov to get someone out to look at it. 3 weeks. Nobody shows up. Then we get a call that says "your appointment on Dec 12 has been canceled and the earliest we can get to you is Jan 16th. This is 2.5 months wait to get service to fix a nearly $20k unit, that is upcharged because of the excellent service. You can't get anyone to answer your call. you wait on hold for 20 minutes, then have to leave a voicemail in which you will not get called back. Based on my experience, find someone else and pay less. Even if the service is bad, which it can't be worse than this, you save money! @kohler"

Jerry B on December 2024



EFS Energy
3407 S Jefferson Ave
5.00(
2
)
EFS Energy
3407 S Jefferson Ave
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As the premier solar and energy efficiency professionals in St. Louis and the Midwest, EFS Energy strives to help our customers achieve energy independence by reducing use and generating clean, renewable energy. Specializing in commercial and agricultural solar power installations, our team has the experience and skill to design and install a custom system based on each individual customer’s needs.

As the premier solar and energy efficiency professionals in St. Louis and the Midwest, EFS Energy strives to help our customers achieve energy independence by reducing use and generating clean, renewable energy. Specializing in commercial and agricultural solar power installations, our team has the experience and skill to design and install a custom system based on each individual customer’s needs.

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Generator installations FAQs

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 homeowners guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
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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.
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Is a whole-house generator worth it? Discover the key factors influencing ROI and whether it's the right choice for your home.
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How much does it cost to run a standby generator? The answer varies based on the type and size of the generator. Find out more.
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