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Verified Reviews for Generator Install pros in Petal, MS

*The Angi rating for Generator Install companies in Petal, MS 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 Petal, MS 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 28, 2026

Find Generator install pros in Petal

Avatar for On-Site Generator Services, LLC
On-Site Generator Services, LLC
4.9(
10
)

Serving Petal, MS and surrounding areas

Approved

In business since 2020

Credit card accepted

Offers commercial services

"Jessie was a professional in all aspects... My RV Generator was fixed and Jessie not only fixed the problem...he explained to me what he was doing....and I very much appreciated that.. I highly recommend On-Site Generator Services for any generator needs"
Response time5 hrs
12 neighbors recently requested a quote
Recommended by88%of homeowners
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Hodas Generator & Electrical LLC
New to Angi

Serving Petal, MS and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

We take great pride 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 the start to the completion of a project. order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

12 neighbors recently requested a quote
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Robert Knight
5.0(
1
)

Serving Petal, MS and surrounding areas

Approved

In business since 1997

Free estimates

Offers commercial services

You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

Response time6 days
Response rate94%
Recommended by100%of homeowners
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Nail Electric
New to Angi

Serving Petal, MS and surrounding areas

Approved

Hey everyone my names Parker Nail. I’m excited to launch my LLC. I’ve been doing Electrical work for 4 years now. I’m always looking for side work and would be happy to handle any type of electrical service needed. My goal is to provide quality and safe work that you can rely on. I’m available after I get off work during the week and on weekends.

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Avatar for Electrical Repair Service
Electrical Repair Service
5.0(
54
)

Serving Petal, MS and surrounding areas

In business since 2013

Free estimates

Credit card accepted

"He arrived on Time. He was very friendly and efficient. He did excellent work and cleaned up when he was finished. I would recommend him fully."
Ring Security Light
Shed and pole barn
Shed and pole barn
Shed and pole barn
Shed and pole barn

+6

Response time8 hrs
Response rate94%
Recommended by100%of homeowners
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Avatar for Beacon Power
Beacon Power
3.8(
27
)

Serving Petal, MS and surrounding areas

In business since 1994

Free estimates

Credit card accepted

"Beacon came out, did an assessment and provided a quote for a generator based on my power consumption. They also provided recommendations based on my current setup ( pointed out things that were not up to code) and possible fix actions. Installation took 1 day and looked very professional. Follow up for the 1st year is part of the installation also. Overall, a great experience. Rated value a little lower simply because your paying a lot of money for something that may never be needed, but it's always nice to know it's there."
Response time1 day
Recommended by89%of homeowners
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Avatar for Mister Sparky
Mister Sparky
4.9(
10
)

Serving Petal, MS and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"My family and I just purchased this home and had no idea where the GFCI was to control the outlets. Technician was going to trace the power on a later date but hearing him say it was controlled tripped at a GFCI that my wife and I couldn't find gave me the idea to look behind boxes in the garage that need to be unpacked still. Found it to be tripped and outlets work. Overall the company is very kind people over the phone and in person and if I had a problem that couldnt be fixed from GFCI I would definitely hire them again."
Generators
Panel Replacement
Relocate Wiring
Relocate switches
Relocate wiring

+4

Response time4 hrs
Response rate97%
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Generator Install questions, answered by experts

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.

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.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The Petal, MS 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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