Get matched with top generator install pros in Jayess, MS

Q: Can you switch fuel types for a whole-house generator?

• <div><p>In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.</p></div>

Q: How do I know what size of whole house generator to choose?

• <div><p>Generators are usually sized by running watts and starting watts. Ideally, you&rsquo;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. <a href="https://www.angi.com/articles/electrical-load-calculation.htm">Calculate your home&rsquo;s electrical load</a> based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.</p></div>

Q: What can I run on different generator sizes?

• <div><p>Here&rsquo;s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home&rsquo;s power is still on.</p></li></ul><p></p></div>

Q: What’s the normal lifespan of a diesel generator?

• <div><p>You can expect a diesel generator to last for up to <b>30,000 hours of use</b>, 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. </p></div>

Q: What is the life expectancy of a whole house generator?

• <div><p>With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.</p></div>

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Verified Reviews for Generator Install pros in Jayess, MS

*The Angi rating for Generator Install companies in Jayess, 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 Jayess, 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 November 03, 2025

Reviewed in November 2025
From start to finish RidgeCrest handled everything quickly and efficiently to get me my beautiful new roof.
RidgeCrest Roofing and Restoration, LLC
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Reviewed in September 2025
The job was very well done and I received an excellent result. The entire process was professional from estimate to completion. Floors were completely demoed to the floor joists and the source of the damage was revealed and corrected with the installation of a French drain. I was kept informed...
Service Group as a Service - General Construction
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Reviewed in August 2025
Apex Plumbing and Gas LLC did an outstanding from initial estimate to the end of the completed project. I definitely would without a doubt hire this company as well as refer to family and friends who may be in the need of their services.
Apex Plumbing and Gas LLC
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Reviewed in February 2023
Angel did multiple jobs for me including replacing rotted wood on front eaves of house and painting outside. Inside, he not only did painting, he built a bookcase into the alcove by the fireplace. Replaced hinges on kitchen cabinet doors, and a member of his team installed an outdoor ceiling...
Garcia's Remodeling Services
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Reviewed in January 2023
Willie is one of the easiest person to work with that I've ever been in contact with. He will work with your budget anyway he knows how and he is very personable!
Lil Man Power Wash and Painting
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Reviewed in December 2020
If you intend to get your house painted, I recommend that you check out the professionals at Abbot's Carpentry and Painting. They do a nice neat job, in a reasonable time, at competitive rates.
Abbott's Carpentry and Painting
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Reviewed in May 2019
We were still living in another State when we purchased our home that needed some updating. We were confident enough to give the owner a key, and although we were far away; when we finally saw our new home-Step by Step had done an amazing job on the granite and marble they installed in our...
Stepp by Stepp Granite Services, LLC
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Reviewed in September 2016
<p>Very Professional company.. Company rep came out and measured for sizing. He explained to me my options and efficiency ratings compared to costs. The unit was installed as promised and on time. Very neat and organized job. When trim out time came, technician came in with boot covers on his...
Southern Air of Mississippi
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Reviewed in October 2012
He did all the work and hired electrical worker and made sure the central air and heat was properly installed <br />
Wesley Vaughan Construction
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Reviewed in August 2007
Couldn't have asked for better service. Initially, I contacted them on a Tuesday and was told they would be out here on Friday at 1pm. I had ordered a replacement windshield for an '02 Honda. When he arrived (2 hours early but he was in the neighborhood so he thought he'd try and do this job...
ASAP Auto Glass
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Find Generator install pros in Jayess

Climate Guard LLC

4.8(

)

Serving Jayess, MS and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Climate guard did an amazing job had amazing pricing,also did in a timely manner I would highly recommend them to anyone for services"

Response time1 day

Response rate94%

53 neighbors recently requested a quote

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AirSouth Cooling and Heating

4.7(

352

)

Serving Jayess, MS and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Emergency services offered

Credit card accepted

"These guys are hands down professional. They understood our needs and went about installing our new dryer vent. I highly recommend them."

Response time5 hrs

Response rate91%

126 neighbors recently requested a quote

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Donohue's Lightning Rods

4.3(

)

Serving Jayess, MS and surrounding areas

Approved

In business since 1971

Free estimates

Emergency services offered

"Within minutes after submitting an inquiry, Seamus contacted me to find out specifics of my project and although he provided an estimate, he was receptive to coming out for a site visit before I committed. Edward came for the preliminary site visit and afterwards, I accepted their proposal. Cliff, the installer, communicated with me with scheduling and was very professional and easy deal with. Edward performed an inspection after install to make sure everything was done properly. The people representing this company seem very knowledgeable about their work and is backed up by generations of experience."

+10

Response time1 day

73 neighbors recently requested a quote

Recommended by96%of homeowners

Serving Jayess, MS and surrounding areas

Approved

In business since 1954

Free estimates

Emergency services offered

"Highly recommend Carrigan for competitive quote? and quality of product and installation."

+23

Response time2 days

13 neighbors recently requested a quote

Recommended by100%of homeowners

Serving Jayess, MS and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"He done the job right was very neat and I highly recommend him"

Response time1 day

Response rate93%

4 neighbors recently requested a quote

Serving Jayess, MS and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"our phone system is old, but they got the work done! Thanks Joe and the teams!"

Response time3 hrs

Response rate99%

5 neighbors recently requested a quote

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Peak Electrical Works

5.0(

)

Serving Jayess, MS and surrounding areas

Approved

In business since 2001

Offers commercial services

Customers say: Quick response

Peak Electrical Works, LLC is the place to call for all your electrical needs. I bring over 20 years of residential, commercial, and industrial experience to each project. I pride myself on neat, quality work that is always up to code. Reach out today!\n

Response time8 hrs

Recommended by100%of homeowners

Serving Jayess, MS and surrounding areas

Approved

In business since 1996

Free estimates

Customers say: Quick response

"Very professional Sales and installation staff. No pressure sales here. They did not try to oversell product that were not necessary for our situation. The installation crew worked quick. The install was neat and professional."

1 neighbors recently requested a quote

Recommended by100%of homeowners

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Wayne Lambert

New to Angi

Serving Jayess, MS and surrounding areas

Approved

I do small basic electrical jobs, that usually won’t take much time. I have a full time job as an electrician but I want some side money.

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1A Contractors

New to Angi

Serving Jayess, MS and surrounding areas

Approved

Emergency services offered

Small jobs welcome

professional entrepreneur dedicated to quality service, clear communication, and dependable results

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...

Showing 1-10 of 118

Generator Install questions, answered by experts

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

20,000 watts and above will make it seem like your home’s power is still on.

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.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

The Jayess, MS homeowners’ guide to generator installs

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

See all articles

Alison Kasch
•
May 3, 2026May 3, 2026
How Much Does a Natural Gas Generator Cost? [2026 Data]
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
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•
Apr 4, 2026Apr 4, 2026
How Much Does It Cost to Install a Generator Transfer Switch? [2026 Data]
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
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•
Apr 6, 2026Apr 6, 2026
How Much Does a Whole-House Generator Cost? [2026 Data]
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
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•
May 2, 2026May 2, 2026
8 Types of Generators for Homeowners
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
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•
Apr 10, 2026Apr 10, 2026
How To Connect a Generator to Your House Without a Transfer Switch
Using a generator during a power outage is a lifesaver. Our guide will show you how to connect a generator to your house without a transfer switch.
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•
May 21, 2026May 21, 2026
How to Hire a Generator Installer
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.