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There are 5 highly-rated local generator install pros.

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"I recently had an electrical inspection done by TE Certified Electrical, Plumbing, Heating & Cooling, and I couldn’t be more impressed. From the moment the technician arrived, the experience was professional, thorough, and reassuring. They took the time to explain everything they found in a way that was easy to understand, and I felt confident I was in good hands. What stood out most was their attention to detail—they didn’t just check the basics, they inspected the entire system to ensure my home was safe and up to code. No high-pressure sales, just honest advice and helpful recommendations. I’ll absolutely be using TE Certified again and would highly recommend them to anyone looking for top-tier electrical service."

BRIAN S on June 2025

TE Certified Electrical, Plumbing, Heating & Cooling is a customer-focused residential service company. We fix & replace electrical, plumbing, and HVAC systems for Greater Atlanta homeowners. Please call our office to schedule your appointment today. 770-667-6937

"I recently had an electrical inspection done by TE Certified Electrical, Plumbing, Heating & Cooling, and I couldn’t be more impressed. From the moment the technician arrived, the experience was professional, thorough, and reassuring. They took the time to explain everything they found in a way that was easy to understand, and I felt confident I was in good hands. What stood out most was their attention to detail—they didn’t just check the basics, they inspected the entire system to ensure my home was safe and up to code. No high-pressure sales, just honest advice and helpful recommendations. I’ll absolutely be using TE Certified again and would highly recommend them to anyone looking for top-tier electrical service."

BRIAN S on June 2025


Avatar for Keep Smiling Plumbing & Electric

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro

Keep Smiling Plumbing & Electric

4.66(
133
)
Approved Pro
Customers say: Super punctual
1433 local quotes requested
40 years of experience

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025

Keep Smiling Plumbing Electric Heating and Cooling is a family-owned, family-operated, full-service plumbing electric and HVAC business, serving Gwinnett County, Georgia. We are Master Plumbers and members of the Plumbing & Mechanical Association of Georgia. Keep Smiling Plumbing & Electric is there when you need us, ready to take care of any problem that you may have with your plumbing or electrical systems. We also have available a full line of quality replacement products if you want to upgrade or update.

"When facing unexpected plumbing issues, Keep Smiling provided truly excellent service. Their Technician was punctual, transparent, and highly skilled."

Dorothea G on November 2025


Avatar for True Light Electric, LLC

True Light Electric, LLC

5.00(
1
)
Approved Pro

True Light Electric, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

True Light Electric, LLC is proud to serve Georgia's electrical service needs! Owner and operator Drew has over 7 years of experience in the industry. They're excited to take on new clients immediately. Call today for a free estimate on your next project!

"Drew Skinner is a DEPENDABLE HARD WORKING PERSON His word and his handshake actually means something Great experience"

Slim M on May 2024

True Light Electric, LLC is proud to serve Georgia's electrical service needs! Owner and operator Drew has over 7 years of experience in the industry. They're excited to take on new clients immediately. Call today for a free estimate on your next project!

"Drew Skinner is a DEPENDABLE HARD WORKING PERSON His word and his handshake actually means something Great experience"

Slim M on May 2024


Avatar for Sullivan Electric Services Co. LLC

Sullivan Electric Services Co. LLC

4.68(
167
)
Approved Pro

Sullivan Electric Services Co. LLC

4.68(
167
)
Approved Pro
Customers say: True professional
19 years of experience
Free onsite estimate

Sullivan Electric Services Co, LLC provides full service residential and commercial electrical services for the entire Atlanta metro area. With more than 30 years of experience in the electrical field, we will provide prompt and technically superior attention to all electrical issues. Our number one priority is customer satisfaction–doing it right the first time, according to your expectations–in order to build a long-term business relationship. At Sullivan Electric, “we light the world the most excellent way.” As a company that has been serving the entire Atlanta metro area for so many years, our longevity is a testament to our dedication to quality craftsmanship, customer service, and low prices. We have many happy customers that attest to our great customer service, pricing and quality of work.

"I asked Mr Sullivan personally do the work needed. He agreed, but apprentice did the work.My experience thus far has been less than expected, and more importantly shocking with threats, bullying, including threats to put a lien on my home, insults, and the wrong assessment, invoiced for work not done, and work done, but not needed. Mr Sullivan came with an assistant who completed most of the work. Holes were left in my ceiling and wall and in addition garbage was left on the floor. He said he had to go home for lunch and would return. One Friday he called me and said he needed to pay his employee and to send him $850 with no invoice and just a payment link. The electrical box connections were faulty and could have caused an electrical fire. Hired a second professional company to fix the problem and paid over $1000 for the rewiring correctly.nSent several letters to Sullivan Electric to find a solution. Sent formal complaint to Better Business Bureau."

Dr K on August 2025

Sullivan Electric Services Co, LLC provides full service residential and commercial electrical services for the entire Atlanta metro area. With more than 30 years of experience in the electrical field, we will provide prompt and technically superior attention to all electrical issues. Our number one priority is customer satisfaction–doing it right the first time, according to your expectations–in order to build a long-term business relationship. At Sullivan Electric, “we light the world the most excellent way.” As a company that has been serving the entire Atlanta metro area for so many years, our longevity is a testament to our dedication to quality craftsmanship, customer service, and low prices. We have many happy customers that attest to our great customer service, pricing and quality of work.

"I asked Mr Sullivan personally do the work needed. He agreed, but apprentice did the work.My experience thus far has been less than expected, and more importantly shocking with threats, bullying, including threats to put a lien on my home, insults, and the wrong assessment, invoiced for work not done, and work done, but not needed. Mr Sullivan came with an assistant who completed most of the work. Holes were left in my ceiling and wall and in addition garbage was left on the floor. He said he had to go home for lunch and would return. One Friday he called me and said he needed to pay his employee and to send him $850 with no invoice and just a payment link. The electrical box connections were faulty and could have caused an electrical fire. Hired a second professional company to fix the problem and paid over $1000 for the rewiring correctly.nSent several letters to Sullivan Electric to find a solution. Sent formal complaint to Better Business Bureau."

Dr K on August 2025


Avatar for TC Shock Electric, LLC

TC Shock Electric, LLC

5.00(
10
)
Approved Pro

TC Shock Electric, LLC

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

TC Shock Electric is much more than your run-of-the-mill electrical company. At TC Shock Electric, we are a personalized service who pride ourselves on reliability, communication, integrity and quality work. We are strong believers in giving our absolute best in all the work we do. Our goal is to ensure that you have a shocking experience in the best way! Call us for a free estimate and to get a professional out to your home today!

"Very professional from intro to cleanup"

Sherman A on February 2023

TC Shock Electric is much more than your run-of-the-mill electrical company. At TC Shock Electric, we are a personalized service who pride ourselves on reliability, communication, integrity and quality work. We are strong believers in giving our absolute best in all the work we do. Our goal is to ensure that you have a shocking experience in the best way! Call us for a free estimate and to get a professional out to your home today!

"Very professional from intro to cleanup"

Sherman A on February 2023


Doc Enterprise Contractors

5.00(
1
)
Approved Pro

Doc Enterprise Contractors

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Excellent work done in a timely manner."

Terah B on April 2022

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"Excellent work done in a timely manner."

Terah B on April 2022


Peach Electric

New on AngiNew on Angi
Approved Pro

Peach Electric

New on AngiNew on Angi
Approved Pro
15 years of experience
Free onsite estimate

Peach Electric 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.

Peach Electric 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.


Avatar for All Nations Electric, LLC

All Nations Electric, LLC

5.00(
14
)
Approved Pro

All Nations Electric, LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

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!

"Quality work and great customer service."

Kara D on April 2023

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!

"Quality work and great customer service."

Kara D on April 2023


Avatar for Southern Power Systems, LLC

Southern Power Systems, LLC

4.94(
75
)
Approved Pro

Southern Power Systems, LLC

4.94(
75
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
48 local quotes requested

Southern Power Systems LLC is a licensed and insured electrical contractor, authorized Generac, Cummins and Champion dealer for automatic residential and commercial generators, and certified service provider. We offer turnkey solutions for automatic generators and take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels, as well as wiring/panel upgrades and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients, and guarantee your satisfaction.

"Zack and Aaron went above and beyond to do a great job for us!"

Mark L on March 2025

Southern Power Systems LLC is a licensed and insured electrical contractor, authorized Generac, Cummins and Champion dealer for automatic residential and commercial generators, and certified service provider. We offer turnkey solutions for automatic generators and take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels, as well as wiring/panel upgrades and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients, and guarantee your satisfaction.

"Zack and Aaron went above and beyond to do a great job for us!"

Mark L on March 2025


Avatar for Wired Pro Electrical Services, LLC

Wired Pro Electrical Services, LLC

4.89(
19
)
Approved Pro

Wired Pro Electrical Services, LLC

4.89(
19
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
9 years of experience

Welcome to Wired Pro Electrical Services. We are Atlanta's Premier, Veteran Owned, full-service electrical contracting company. Wired Pro Electrical Services, LLC, specializes in residential, commercial and industrial electrical. Serving the Metro Atlanta area, Wired Pro Electrical Service, does all wiring, lighting and panel upgrades. Our Company also specializes in servicing light fixtures at heights of up to 30 Feet. As a fully licensed and insured contractor, Wired Pro Electrical Services, will beat any estimate and provides 24/7 emergency services!

"On time for helping fix my bad DIY job. Very reasonable rate, will be my go to electrician going forward."

Ben Q on May 2022

Welcome to Wired Pro Electrical Services. We are Atlanta's Premier, Veteran Owned, full-service electrical contracting company. Wired Pro Electrical Services, LLC, specializes in residential, commercial and industrial electrical. Serving the Metro Atlanta area, Wired Pro Electrical Service, does all wiring, lighting and panel upgrades. Our Company also specializes in servicing light fixtures at heights of up to 30 Feet. As a fully licensed and insured contractor, Wired Pro Electrical Services, will beat any estimate and provides 24/7 emergency services!

"On time for helping fix my bad DIY job. Very reasonable rate, will be my go to electrician going forward."

Ben Q on May 2022

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Generator Install questions, answered by experts

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. 

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

The Walnut Grove, GA 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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