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Verified Reviews for Generator Install pros in Valley, AL

*The Angi rating for Generator Install companies in Valley, AL 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 Valley, AL 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 April 21, 2026

Find Generator install pros in Valley

Avatar for BNA Electric
BNA Electric
5.0(
5
)

Serving Valley, AL and surrounding areas

In business since 2021

Emergency services offered

Warranties offered

"Brian with BNA was professional and knowledgeable about the service I had done. He was willing to work with my budget and got the job done well. My TVs look great mounted on the wall thanks to BNA Electric!"
Response time1 day
Recommended by100%of homeowners
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Avatar for Parker Service Company
Parker Service Company
5.0(
2
)

Serving Valley, AL and surrounding areas

Emergency services offered

"From the estimate to the end of the job we were pleased with Parker Service Company. Bud was the technician that came for the estimate. He was very knowledgeable about what we needed as well as giving us options of how things could be done. The estimate was half of what another company quoted. The following week Bud and two others came to do the work. They were professional and polite from start to finish. We will be doing a few things in the future using PSC again as well as requesting Bud and the same crew. Thanks for a job well done."
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Avatar for The Home Depot - Generators
The Home Depot - Generators
2.5(
1
)

Serving Valley, AL and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

Today, we're proud to be the world's largest home improvement retailer. In 2,300 stores across North America, we aspire to excel in service – to our customers, associates, communities and shareholders. That's what leadership means to us. That's The Home Depot difference.

Generators
Generators
Generators
Generator
Generators

+5

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NightLight Electric LLC
New to Angi

Serving Valley, AL and surrounding areas

In business since 2022

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

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Dowdell Electrical Service
New to Angi

Serving Valley, AL and surrounding areas

In business since 2020

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n\n

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Avatar for SAC
SAC
5.0(
1
)

Serving Valley, AL and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"He has done an excellent job. He was determined to get the job done. He ran into some difficulties due to the partitions and he went an extra mile to get the job done. He was very professional."
Recommended by100%of homeowners
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Showing 1-10 of 16
Generator Install questions, answered by experts

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

The Valley, AL 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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