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Verified Reviews for Generator Install pros in Grain Valley, MO

*The Angi rating for Generator Install companies in Grain Valley, 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 Grain Valley, 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 June 11, 2026

Find Generator install pros in Grain Valley

Avatar for Anthony Plumbing, Heating & Cooling
Anthony Plumbing, Heating & Cooling
4.7(
1,472
)

Serving Grain Valley, 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 Grain Valley, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Raul is awesome! Couldn't have asked for a better electrician to work on my projects. He is an expert and has a great work ethic. He installed a chandelier, light switch, and neon sign above my fireplace. He also rerouted wires in my guest bathroom and installed a vanity light. He also added three outlets in the house. Great work all around. I would definitely recommend him for anyone that needs electric work done."
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 Grain Valley, 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 Grain Valley, MO and surrounding areas

Approved (Corporate)

In business since 1950

Emergency services offered

Warranties offered

"I had Hamilton install a whole house generator. Very professional and great work and communication from them. They were also very reasonably price compared to some other quotes I received."
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 Grain Valley, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"C&S was very professional and yet still very polite and personable. That makes perfect sense since the owner and founder is a US Armed Forces vet. Seth and Jeremiah made quick work of my flood light installation when they arrived. Earlier, Seth had recommended a supplier where I could select the fixture that worked best for my application. The labor cost was very fair and I was pleased to pay the "contractor price" for my fixture. Overall, I had a VERY GOOD experience with C&S and I would recommend this company highly."
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 Grain Valley, 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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MAZELECTRICAL SOLUTIONS, LLC
New to Angi

Serving Grain Valley, MO and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We offer over 15 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're 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.

Response time2 days
15 neighbors recently requested a quote
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Generator Install questions, answered by experts

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

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.

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.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Grain Valley, MO homeowners’ guide to generator installs

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

See all articles