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Verified Reviews for Generator Install pros in Liberty, MO

*The Angi rating for Generator Install companies in Liberty, 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 Liberty, 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 December 18, 2025

Find Generator install pros in Liberty

Avatar for Anthony Plumbing, Heating & Cooling
Anthony Plumbing, Heating & Cooling
4.7(
1,472
)
Fixed Generator - InstallPortable Generator - RepairFixed Generator - Repair+4 more

Serving Liberty, MO and surrounding areas

Approved (Corporate)

In business since 1951

Free estimates

Emergency services offered

"The installation crew of Drew and Tanner was outstanding. Very professional and knowledgeable. Drew explained everything he was going to do and always answered my questions promptly. Definitely did a high quality installation. The work area was left spotless. An outstanding crew."
Additional Photos
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+38

261 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Lat/Long Electric
Lat/Long Electric
5.0(
56
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Liberty, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"He did a great job with several items including install new outlets, switches, ceiling fans, correctly wiring fixtures, diagnosing & repairing wall fixtures. Highly recommend!"
Response time5 hrs
Response rate98%
6 neighbors recently requested a quote
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Avatar for Smart Power Services
Smart Power Services
4.3(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Liberty, MO and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

We are a small business based in Lee's Summit, MO. Our goal is to cultivate long lasting relationships with all our clients. Above all, we value honesty and integrity in the way we do business. We do it all: Standby Generators - maintenance and repairs, installations, residential/commercial/industrial Residential - service repairs, panel upgrades, EV chargers, remodels, and new construction. Commercial/Industrial - service repairs, electrical additions, remodels, and new construction. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward working with you!

Cummins Generator
Kohler 12 kW
Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
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Avatar for East Side Electric, LLC
East Side Electric, LLC
5.0(
10
)
Fixed Generator - InstallPortable Generator - Install

Serving Liberty, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Warranties offered

Small jobs welcome

"Brian was thorough, made suggestions and recommendations. Installed 220 outlet."
New CH Breaker Panel
FedPac Panel
New Panel Old Wire
Central Lighting
Wide Shot Ab Sink

+7

Response time1 day
Recommended by30%of homeowners
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Avatar for Hamilton Electric
Hamilton Electric
4.3(
114
)
Fixed Generator - Install

Serving Liberty, MO and surrounding areas

Approved (Corporate)

In business since 1950

Emergency services offered

Warranties offered

"The Serviceman was on time. I had questions about the humidifier, which he answered thoroughly. He corrected a small issue with the A/C and the circuit breaker box as well. He went over the entire install from A to Z. We feel safe and secure with the knowledge that absolutely nothing was overlooked."
Generator Installation
Response time8 hrs
Recommended by86%of homeowners
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Avatar for C&S Electric, LLC
C&S Electric, LLC
4.6(
61
)
Portable Generator - InstallPortable Generator - Repair

Serving Liberty, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"Glad to find electricians that I could depend on and that knew what to do."
Response time1 day
182 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for T&L Services Group
T&L Services Group
5.0(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Liberty, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Tyler did a great job installing the garbage disposal. He was prompt, kept me advised on his time of arrival and the pricing was reasonable. I would highly recommend him for your plumbing repairs and installations."
46 neighbors recently requested a quote
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Avatar for KB Complete Electrical
KB Complete Electrical
4.6(
5
)
Fixed Generator - Install

Serving Liberty, MO and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

At KB Complete, every job is an opportunity to highlight our unwavering dedication to meticulousness, ensuring every detail is accounted for. We view our role as your partner in maintaining a safe, comfortable, and efficient home, offering tailored solutions that address all your needs.

Response time2 days
29 neighbors recently requested a quote
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Tri-State Water, Power & Air
New to Angi
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business

Serving Liberty, MO and surrounding areas

Approved (Corporate)

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.

Response time1 day
Response rate100%
58 neighbors recently requested a quote
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House of Watts Electric, LLC
New to Angi
Fixed Generator - InstallPortable Generator - Install

Serving Liberty, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Hello\nMy name is Joe Derby I am the owner operator of House of Watts Electric, LLC. I have 30+ years experience in all aspects of electrical. No job is to small or to big. All estimates are free and I know you will love my prices. I am looking forward to helping you with all your electrical needs.

6 neighbors recently requested a quote
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Generator Install questions, answered by experts

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the total wattage of the devices that you’d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.

Carbon monoxide emissions aren’t only dangerous to human life, but they also harm our planet. While natural gas generators emit lower levels of CO than other fuel sources, there are still ways to reduce emission levels. For example, shop around for an eco-friendly generator that complies with current emission standards. Also, make sure your generator is serviced regularly to avoid CO buildup. 

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

The Liberty, MO homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

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