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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
)

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."
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+38

237 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Lat/Long Electric
Lat/Long Electric
5.0(
56
)

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
)

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 Hamilton Electric
Hamilton Electric
4.3(
114
)

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
)

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
177 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for KB Complete Electrical
KB Complete Electrical
4.6(
5
)

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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Generator Install questions, answered by experts

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

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 natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

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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