Get matched with top generator install pros in Bethlehem, NC

Q: How much does it cost to install a whole-house generator?

• <div><p>The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.</p><p>Generator costs can be broken down by type:</p><ul><li><p>Portable or Emergency Backup Generators (1kW&ndash;7.5kW): $500 to $2,000</p></li><li><p>Partial-Home Generators (9kW&ndash;20kW): $2,000 to $6,500</p></li><li><p>Whole-House Generators (22kW&ndash;48kW): $5,000 to $18,000</p></li></ul><p>To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.</p></div>

Q: Do diesel generators have any important downsides?

• <div><p>While diesel is relatively stable, it won&rsquo;t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it&rsquo;s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn&rsquo;t always ideal for home use. </p></div>

Q: What are the benefits of a portable generator?

• <div><p>Portable generators provide backup power for essential appliances during outages and are easy to relocate.</p></div>

Q: How big of a generator do I need for a transfer switch?

• <div><p>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&rsquo;s largest outlet is 30 amps, you&rsquo;ll need a 30-amp transfer switch.</p></div>

Q: Can you use biofuel in a whole-house generator?

• <div><p>In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.</p></div>

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Verified Reviews for Generator Install pros in Bethlehem, NC

*The Angi rating for Generator Install companies in Bethlehem, NC 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 Bethlehem, NC 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 March 13, 2026

Reviewed in March 2026
Easy experience with install. Steve O and crew did an amazing job making my house look brand new! Recommend Home Genius!
Home Genius Exteriors
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Reviewed in January 2026
I was concerned about an impending snow man’s ice storm. My generator wouldn’t start or eun. He got it started and running right away. Excellent response time.
Gentry Electrical Solutions LLC
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Reviewed in December 2025
Christifor showed up on time and did the installation properly. I would use him again.
Apex Home and Assembly Services
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Reviewed in December 2024
Walker Electric did a great job each time I hired them. On separate occasions they installed two ceiling fans, installed an electric outlet, and finally installed a full house generator. I will have them out again when there is need, and recommend their service to family and friends.
Walker Electrical Service L.L.C.
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Reviewed in November 2024
Corey and his crew installed a whole house Generac generator for me. From beginning to end the entire process was great. Corey and his crew were professional, knowledgeable, and on time. I highly recommend Corey and his crew. Kerry P. Newton NC
Powerhouse Electric & Generators, LLC
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Reviewed in June 2024
Site visit with Anthony and quote was best price by comparison with other quotes. Install was on point as discussed, installing electric to newly built metal building
Stickler's Electrical Service
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Reviewed in May 2024
Bob and Eric very professional They did a great job on the install
West Shore Home Richmond
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Reviewed in September 2023
Very professional and efficient. Mike did an awesome job installing 12 indoor door knobs.
Cutting Edge Home
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Reviewed in April 2023
The project was spot on. Our installer was fantastic and professional, he explained everything that he did while he was there. I couldn't ask for a better installer
West Shore Home Charlotte
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Reviewed in December 2020
Came out to see what was wrong and found out my old generator was shot, Bad storm damage, so I bought me a new one.
SVSR, Inc.
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Find Generator install pros in Bethlehem

Walker Electrical Service L.L.C.

4.9(

)

Serving Bethlehem, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Warranties offered

"Walker Electric did a great job each time I hired them. On separate occasions they installed two ceiling fans, installed an electric outlet, and finally installed a full house generator. I will have them out again when there is need, and recommend their service to family and friends."

+25

Response time8 hrs

48 neighbors recently requested a quote

Recommended by62%of homeowners

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Mister Sparky by Wise Electric Control, Inc.

4.6(

293

)

Serving Bethlehem, NC and surrounding areas

Approved

In business since 1988

Free estimates

Emergency services offered

"Christian was helpful, answering my questions and showing me where my generator could be placed and explained the installation process, His visit was not to repair a generator, but to get me a quote."

+13

Recommended by83%of homeowners

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Stickler's Electrical Service

5.0(

)

Serving Bethlehem, NC and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Site visit with Anthony and quote was best price by comparison with other quotes. Install was on point as discussed, installing electric to newly built metal building"

Response time7 hrs

2 neighbors recently requested a quote

Recommended by88%of homeowners

Serving Bethlehem, NC and surrounding areas

Approved

Credit card accepted

Customers say: Quick response

"I've called several electricians prior but none have responded. My fixtures/outlets in two rooms were out for a month and when I stumbled upon the HomeAdvisor, the request got put in and within an hour, Matt answer the service call. He's pretty thorough, I'm very impressed with his professionalism. I have three other rental, definitely will call him again."

Recommended by93%of homeowners

Serving Bethlehem, NC and surrounding areas

Approved

Emergency services offered

Credit card accepted

Customers say: True professional

"Went great, he picked a/c unit. Installed unit including the duck work. Wired unit in with bigger wiring (wire to code) and breaker. Very happy with the work done. I would highly recommend this company. Jason ever professional, I will be doing business again with him."

Response time2 days

19 neighbors recently requested a quote

Recommended by90%of homeowners

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Mills Electric Company LLC

5.0(

)

Serving Bethlehem, NC and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"Installed a security doorbell. Great service, clean work, great prices!"

Response time5 days

Recommended by87%of homeowners

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Coleman Electrical LLC

4.9(

)

Serving Bethlehem, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Credit card accepted

"I had a great experience with Coleman Electric. They are reliable, honest and operate with integrity. I would recommend them to anyone that has any type of electrical needs."

Response time6 hrs

Response rate89%

Recommended by83%of homeowners

Serving Bethlehem, NC and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Install went smoothly good and I'm very satisfied. I hope to use Pablo again soon . I would highly recommend"

+44

Response time7 hrs

4 neighbors recently requested a quote

Recommended by63%of homeowners

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Mr. Electric of Gastonia

4.7(

)

Serving Bethlehem, NC and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Our electrician Daniel was amazing he was on time and got the job done in no time. He was very nice and knowledgeable about the services that I needed done. Thank you very much."

+83

Response time4 hrs

Response rate92%

Recommended by95%of homeowners

Serving Bethlehem, NC and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"William Burden is the third generation owner of WBLightningRods and his company has been in business since 1950. He is very courteous, professional, was on time, and has a very good crew. William was present for the entire installation. We chose the copper system. We are glad for the peace of mind a lightning rod system will provide."

+79

Response time1 day

62 neighbors recently requested a quote

Recommended by98%of homeowners

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Showing 1-10 of 167

Generator Install questions, answered by experts

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000
Partial-Home Generators (9kW–20kW): $2,000 to $6,500
Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

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

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.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

The Bethlehem, NC 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

Taylor Freitas
•
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.
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.
Alison Kasch
•
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.
Elisa Greenberg
•
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.
Melissa Graham
•
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.
Tyler Lacoma
•
May 21, 2026May 21, 2026
How to Use a Portable Generator: A Complete Guide
Portable generators are handy for many reasons, but they require care to prevent fire, electrocution, and more. Stay safe with this guide on how to use a generator.