Top-rated generator installers.

Get matched with top generator installers in Madison, SC

There are 1 highly-rated local generator installers.

Generator installers in Madison

Avatar for Knights Electrical Services
Knights Electrical Services
201 Chadwick Rd
5.00(
1
)
Approved Pro
Knights Electrical Services
201 Chadwick Rd
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
68 local quotes requested

We are a smaller company that can give you the respect, honesty, and pricing that most other companies can not offer. We let you know details on every electrical problem and how we can repair them. We are always upfront on all pricing and never do the work and charge you without prior approval.

"Showed up on time and fixed issue fast. Will be sure to use them again if needed"

morris l on December 2023

We are a smaller company that can give you the respect, honesty, and pricing that most other companies can not offer. We let you know details on every electrical problem and how we can repair them. We are always upfront on all pricing and never do the work and charge you without prior approval.

"Showed up on time and fixed issue fast. Will be sure to use them again if needed"

morris l on December 2023


Avatar for Greens Electrical
Greens Electrical
4.95(
21
)
Approved Pro
Greens Electrical
4.95(
21
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
63 local quotes requested

We offer a wide range of Electrical needs. From trouble shooting to complete rewires, nothing is too big or too small. Free quotes and family oriented. Give Robert Green a call to schedule a quote at 864-207-3823. We work in the upstate area, Seneca, Clemson, Greenville, Spartanburg, Anderson.

"Well. This company was able to make my project fit into their schedule due to my travel schedule They were slammed due to hurricane Helene and went above and beyond to accommodate me . The tech that came to my home JC was knowledgeable and on time."

Courtney C on October 2024

We offer a wide range of Electrical needs. From trouble shooting to complete rewires, nothing is too big or too small. Free quotes and family oriented. Give Robert Green a call to schedule a quote at 864-207-3823. We work in the upstate area, Seneca, Clemson, Greenville, Spartanburg, Anderson.

"Well. This company was able to make my project fit into their schedule due to my travel schedule They were slammed due to hurricane Helene and went above and beyond to accommodate me . The tech that came to my home JC was knowledgeable and on time."

Courtney C on October 2024


Avatar for Noble Electric
Noble Electric
761 Rodgers Road
5.00(
1
)
Approved Pro
Noble Electric
761 Rodgers Road
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Noble Electric LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"John was very prompt in getting back to me after I submitted my request. He was able to work us in very quick and was very easy to work with. We appreciate his quality service. If you have a small job that nobody else wants to take then Noble Electric is the place to call. We can not imagine a better experience."

Brian H on January 2024

Noble Electric LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"John was very prompt in getting back to me after I submitted my request. He was able to work us in very quick and was very easy to work with. We appreciate his quality service. If you have a small job that nobody else wants to take then Noble Electric is the place to call. We can not imagine a better experience."

Brian H on January 2024


Avatar for Just Electric, LLC
Just Electric, LLC
307 Shores Drive
4.97(
17
)
Approved Pro
Just Electric, LLC
307 Shores Drive
4.97(
17
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
25 years of experience

Just Electric, LLC is committed to excellence in every aspect of our business. With over 25 years of experience in the electrical field, we offer a variety of electrical service for residential and commercial customers. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Quick turnaround time. Came the following day and completed job with no issues. Reasonable price for services"

Jessica B on April 2025

Just Electric, LLC is committed to excellence in every aspect of our business. With over 25 years of experience in the electrical field, we offer a variety of electrical service for residential and commercial customers. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Quick turnaround time. Came the following day and completed job with no issues. Reasonable price for services"

Jessica B on April 2025


GSP Electric
123 Martin Circle
5.00(
21
)
Approved Pro
GSP Electric
123 Martin Circle
5.00(
21
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

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.

"Always punctual. Never leaves until problem is solved. Best electrician ever had."

Homeowner on October 2019

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.

"Always punctual. Never leaves until problem is solved. Best electrician ever had."

Homeowner on October 2019


Avatar for Accent Tel USA
Accent Tel USA
3501 Bessie Coleman Blvd, Suite 25203
4.88(
8
)
Approved Pro
Accent Tel USA
3501 Bessie Coleman Blvd, Suite 25203
4.88(
8
)
Approved Pro
Customers say: Quick response
13 local quotes requested
16 years of experience

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Joe, Mark, and Their Team did a Splendid Job for Us on this Business Phone Line Install. There are Very Knowledgeable and provided the Needed Assessment and "Fix" in a Very Timely Manner. I Highly Recommend Accent Tel USA! God Bless You! Philippians 1:3-6! Have a Wonderful Day in the Neighborhood & "Stay on the Nice List"! :)"

Buck B on August 2024

Our Company provides a one-stop solution for all of your voice, internet, and telecom needs. Leveraging the Cloud we provide your Office state-of-the-art telephones for little or no upfront cost striving to keep your monthly costs the same. Sound too good to be true? Give us a call and we will show you how.

"Joe, Mark, and Their Team did a Splendid Job for Us on this Business Phone Line Install. There are Very Knowledgeable and provided the Needed Assessment and "Fix" in a Very Timely Manner. I Highly Recommend Accent Tel USA! God Bless You! Philippians 1:3-6! Have a Wonderful Day in the Neighborhood & "Stay on the Nice List"! :)"

Buck B on August 2024


Avatar for REDSTONE ELECTRIC LLC
REDSTONE ELECTRIC LLC
1202 Garden Circle
5.00(
4
)
Approved Pro
REDSTONE ELECTRIC LLC
1202 Garden Circle
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

REDSTONE ELECTRIC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"I had my meter box/ panel combo replaced, they managed to get the utility company to pull back power, they replaced/ upgraded it, and had the utility company reconnect all in the same day. Their price was also better than 5 other quotes i got."

Jacob S on September 2024

REDSTONE ELECTRIC LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"I had my meter box/ panel combo replaced, they managed to get the utility company to pull back power, they replaced/ upgraded it, and had the utility company reconnect all in the same day. Their price was also better than 5 other quotes i got."

Jacob S on September 2024


Avatar for Surface Bella, LLC
Surface Bella, LLC
246 Santa Ana Way
4.25(
51
)
Approved Pro
Surface Bella, LLC
246 Santa Ana Way
4.25(
51
)
Approved Pro
Customers say: Quality work
216 local quotes requested
6 years of experience

At Surface Bella our philosophy is simple, we will take care of our customers, and the rest takes care of itself. We started from day one with a simple mission that has served us well. "We install QUALITY home improvement products at a FAIR price". Thank you for your support, and we look forward to beautifying your home soon.

"no comment"

George L on May 2024

At Surface Bella our philosophy is simple, we will take care of our customers, and the rest takes care of itself. We started from day one with a simple mission that has served us well. "We install QUALITY home improvement products at a FAIR price". Thank you for your support, and we look forward to beautifying your home soon.

"no comment"

George L on May 2024


Wilson Creek Electric
1250 Antreville Hwy
New on HomeAdvisorNew on Angi
Approved Pro
Wilson Creek Electric
1250 Antreville Hwy
New on AngiNew on HomeAdvisor
Approved Pro
26 years of experience
Free onsite estimate

We pride our company on reliability, great communication, integrity and quality work. We are experts in our electrical contracting and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

We pride our company on reliability, great communication, integrity and quality work. We are experts in our electrical contracting and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.


Stephens Electric LLC
19 Little River Dr
5.00(
27
)
Approved Pro
Stephens Electric LLC
19 Little River Dr
5.00(
27
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
35 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Joseph from Stephens Electric LLC was punctual and very efficient in installing a new ceiling fan for us. His pricing was reasonable as well. Great contractor!!"

Timothy S on November 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Joseph from Stephens Electric LLC was punctual and very efficient in installing a new ceiling fan for us. His pricing was reasonable as well. Great contractor!!"

Timothy S on November 2024

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Generator installations FAQs

Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:

  • Portable generators with 1kW–7.5kW capacity: $500–$2,000

  • Partial generators with 9kW–20kW capacity: $2,000–$6,300

  • Whole-house generators with 22kW–48kW: $5,000–$18,000

When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.

When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 watts

Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. 

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.

The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:

  • Experience frequent or prolonged power outages

  • Work from home

  • Store a lot of cold food

  • Have a sump pump

  • Have a pump for well water

  • Use electronic medical devices

  • Live in a climate requiring heating or cooling

The homeowners guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
A portable inverter generator
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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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A whole house generator can keep your home running during a power outage, but can it handle the energy demands of an air conditioner? Here’s what to consider.
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Natural gas generators emit carbon monoxide, a harmful gas. Learn about what carbon monoxide is and tips to operate your generator safely.
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Is a whole-house generator worth it? Discover the key factors influencing ROI and whether it's the right choice for your home.
outdoor diesel power generator
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emergency power supply outside home
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How much does it cost to run a standby generator? The answer varies based on the type and size of the generator. Find out more.
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