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Verified Reviews for Generator Install pros in Ladue, MO

*The Angi rating for Generator Install companies in Ladue, 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 Ladue, 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 04, 2025

Find Generator install pros in Ladue

Avatar for Wells Electric LLC
Wells Electric LLC
5.0(
5
)

Serving Ladue, MO and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

With over 20 years of experience, we’re a licensed, family-owned electrician proudly serving Warrenton and the surrounding areas—including St. Louis, St. Charles, Warren, and Franklin Counties. From expert electrical repairs to new home build wiring and generator installation, we bring dependable service, quality craftsmanship, and peace of mind to every job. Fully licensed in the state of Missouri and St. Charles County, we’re here to power your home or business with skill and care you can trust.

Response time2 days
Response rate100%
3 neighbors recently requested a quote
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Avatar for Tri-State Water, Power & Air
Tri-State Water, Power & Air
4.8(
37
)

Serving Ladue, 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."
My jobs
My jobs
My jobs
My jobs
My jobs

+3

49 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Power Up Electrical Contractors, LLC
Power Up Electrical Contractors, LLC
4.5(
19
)

Serving Ladue, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Hired “Power Up” to refit our electrical panel and install an outside connecting plug to run a new portable electric generator. Jeff came out and spent time to evaluate and discuss our needs. He was consultative throughout the whole process. Lisa was responsible for arranging installation and paperwork and was very responsive to inquiries as well as reaching out to confirm things were moving forward. Justin was our installer and he knew his stuff. Very friendly and completed the work on time and as expected. Great experience working with “Power Up.”"
27 neighbors recently requested a quote
Recommended by82%of homeowners
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Avatar for Hoffmann Brothers
Hoffmann Brothers
3.8(
32
)

Serving Ladue, MO and surrounding areas

Approved

In business since 1980

Emergency services offered

Warranties offered

"Best service I have ever received from a company and the employee who did the installation"
Burnt out panel
Burnt electrical panel
Panel replacement
Electrical Panel
Replacement Electrial panel with labeling

+14

Response time10 hrs
1 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for FixPro
FixPro
5.0(
5
)

Serving Ladue, 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 VMK Remodeling
VMK Remodeling
4.2(
19
)

Serving Ladue, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Very pleased with the quality of the kitchen cabinet installation. Company we contacted with for counter tops also commented on the quality of their work. Customer service was excellent. They arrived as scheduled and quickly responded to messages. Work was done well and on time."
Response time2 days
Response rate90%
66 neighbors recently requested a quote
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Avatar for Lifestyle Contracting, LLC
Lifestyle Contracting, LLC
New to Angi

Serving Ladue, MO and surrounding areas

Approved

In business since 2023

Offers commercial services

Lifestyle Contracting is an estimating and management company for sub contractors in the St. Louis and surrounding areas. Specializing in residential and commercial electrical services, we’ve teamed up with Pace Electric to offer the best in the industry. Let us help you to understand your home or businesses electrical system and assist in any installation.

Response time1 day
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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.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

The Ladue, 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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