Top-rated generator install pros.

Get matched with top generator install pros in Ballwin, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Ballwin, MO?

Select your specific project to find the pro for you.

Find Generator install pros in Ballwin

Avatar for Streib Company
Streib Company
4.7(
161
)

Serving Ballwin, MO and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Streib was extremely professional, courteous, patient, and friendly throughout the entire process. They did a great job with the installation - the city inspector was impressed by their work. Additionally, everyone I interacted with was just so nice. It made for a very pleasant and stress-free experience."
Additional Photos
Additional Photos
Solar Panel Install
Additional Photos
Additional Photos

+7

Response time2 days
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for J BATHE ELECTRIC
J BATHE ELECTRIC
4.7(
41
)

Serving Ballwin, MO and surrounding areas

Approved

In business since 1945

Free estimates

Warranties offered

"We highly recommend JBathe Electric. They were very knowledgeable and professional! They were very reasonably priced! From the office staff to the installers the customer service was superb!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time2 days
Response rate87%
12 neighbors recently requested a quote
Avatar for Potts Electric, LLC
Potts Electric, LLC
4.8(
24
)

Serving Ballwin, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Emergency services offered

Warranties offered

"Under cabinet light install. The technician was great. He confirmed that the job would be out of my price range and gave me an alternate solution. I felt that he was honest and wasn't pushy."
Panel upgrade
Panel upgrade
Light switch
Light switch
Outdoor light

+2

Response time1 day
Response rate90%
183 neighbors recently requested a quote
Avatar for Wells Electric LLC
Wells Electric LLC
5.0(
5
)

Serving Ballwin, 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
5 neighbors recently requested a quote
Avatar for Snider Constructors, LLC
Snider Constructors, LLC
4.2(
587
)

Serving Ballwin, MO and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"Steve and Charlie from Handyman Connection did great work!! They replaced/installed the bird guard vents quicker than expected!! Plus, they had to deal with a dead bird in the attic, and did it with no problem at all!!"
Small bath remodel
Chimney chase cover
Deck addition
Additional Photos
Additional Photos

+5

Recommended by88%of homeowners
...
Showing 1-10 of 368
Generator Install questions, answered by experts

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.

Portable generators provide backup power for essential appliances during outages and are easy to relocate.

It might seem counterintuitive, but installing a generator transfer switch will save you money in the long run. While you’ll have to pay between $400 and $2,500 to have the transfer switch installed, you’ll recoup that amount later on when you don’t have to pay for expensive repairs to your appliances, devices, and electrical system that may have burned out, overloaded, or stopped working due to a sudden loss of power or an incorrect hook up of a generator to your home

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

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.

The Ballwin, MO homeowners’ guide to generator installs

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"