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Verified Reviews for Generator Install pros in Warrenton, MO

*The Angi rating for Generator Install companies in Warrenton, 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 Warrenton, 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 March 11, 2026

Find Generator install pros in Warrenton

Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)

Serving Warrenton, MO and surrounding areas

Approved

In business since 1993

Free estimates

Emergency services offered

"Kelly installed a new toilet for us. He did a superb job and he deserves a raise. He has such a great attitude. He is a keeper & again, he deserves a raise!! And I am not his mother or grandmother."
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+3

49 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for FixPro
FixPro
5.0(
5
)

Serving Warrenton, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

FixPro is a locally owned and operated handyman service proudly serving St. Louis, St. Charles, Lincoln, Warren, Franklin, and Jefferson Counties. We specialize in high-quality home repairs, carpentry, drywall, painting, flooring, deck repair, and general maintenance—handling everything from small fixes to larger improvement projects with precision and professionalism.\n\nWith years of hands-on experience across construction, maintenance, and service industries, I built FixPro to deliver what most contractors don’t: clear communication, reliable scheduling, and work done right the first time. We show up when we say we will, diagnose issues properly, and provide straightforward solutions without cutting corners.\n\nOur approach is simple—treat every home like it’s our own. We focus on clean workmanship, long-term durability, and customer satisfaction. If you want it done right the first time, FixPro is ready.\n\nNeed Something Fixed? Hire a Pro.

1 neighbors recently requested a quote
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Avatar for Shinnova Power
Shinnova Power
New to Angi

Serving Warrenton, MO and surrounding areas

Approved (Corporate)

In business since 2024

Free estimates

Emergency services offered

Shinnova Power is committed to excellence in 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.

Response time1 day
Response rate100%
21 neighbors recently requested a quote
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Avatar for Summit Power Systems, LLC
Summit Power Systems, LLC
4.1(
12
)

Serving Warrenton, MO and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"Great and friendly installer and helper. Always answered phone when called. Felt very confident about work."
St Louis Hill Generator
Chicago, IL Generator
Chicago, IL 60 kW
Wentsville, Missouri
Wentsville, Missouri 80 kW Generac

+18

Response time5 hrs
Response rate95%
Recommended by90%of homeowners
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Showing 1-10 of 16
Generator Install questions, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The Warrenton, 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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