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Verified Reviews for Generator Install pros in Alexandria, SD

*The Angi rating for Generator Install companies in Alexandria, SD 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 Alexandria, SD 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 01, 2026

Find Generator install pros in Alexandria

Avatar for Eie Electric
Eie Electric
4.3(
18
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Alexandria, SD and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Jason communicated with me right away when I contacted him. He was on time, he charged a fair price He gave us options and finished the job in one day! Very professional! I would definitely recommend him to family and friends!"
Gas Station Setup
Gas Station Setup
Gas Station Setup
Gas Station Setup
Gas Station Setup

+35

Response time2 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
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Avatar for Trinity Electric
Trinity Electric
5.0(
3
)
Fixed Generator - RepairGenerator - Install - For Business

Serving Alexandria, SD and surrounding areas

In business since 2012

Free estimates

Small jobs welcome

"They show up and on time. If they do run behind, they call. Sounds simple, but itâ s a real challenge these days"
Response time2 days
Response rate86%
Recommended by100%of homeowners
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Avatar for TT Electric, LLC
TT Electric, LLC
5.0(
2
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Alexandria, SD and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"He was easy to work with, good at listening what we wanted and open to changes."
Response time10 mins
Recommended by100%of homeowners
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D & J Electric, Inc.
New to Angi
Fixed Generator - InstallFixed Generator - Repair

Serving Alexandria, SD and surrounding areas

In business since 1980

Free estimates

We offer over 35 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, generator installs, wiring and panel upgrades, and a variety of other jobs. We take pride in our quality of work and our commitment to outstanding results. We are committed to providing a personalized service for each individual project we take on. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction. No job is too small. We will help you find your short!

Response time12 hrs
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Trinity Electric LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Alexandria, SD and surrounding areas

In business since 2012

Free estimates

Credit card accepted

Welcome to Trinity Electric! With over 18 years of experience, we take pride in the quality of work and customer satisfaction that we give every customer! We are known to be extremely hands on and involved, while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

Response time3 hrs
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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.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Alexandria, SD 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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