Top-rated generator install pros.

Get matched with top generator install pros in Cumming, GA

There are 8 highly-rated local generator install pros.

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    Average homeowner rating
  • Verified reviews icon16
    Verified generator installs reviews

Find Generator install pros in Cumming

"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 Lightning Bug Electric

Lightning Bug Electric

629 COLLINS RD
4.73(
475
)
Approved Pro

Lightning Bug Electric

629 COLLINS RD
4.73(
475
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
316 local quotes requested

Having been awarded for our excellence by numerous professional organizations, our team at Lightning Bug Electric has the skills and knowledge to help you with a wide array of electrical problems. Our Marietta electricians have over 25 years of experience in the industry and we always provide around-the-clock availability. If you are looking for a team led by a master electrician, you have come to the right place. We provide residential and commercial customers with wiring and rewiring, lighting upgrades, outlets and switches, full electrical remodeling and installation, and more. Call our team today to schedule your free electrical service estimate.

"Leyton was fantastic. Arrived right on time(and scheduling was very easy and convenient- got my exact day and time I wanted.) He saw exactly what I needed for installing a ceiling fan, and it looks, and works perfectly. The price was more than fair. Second experience with LBE, and again, 5 stars!"

Stephen K on May 2025

Having been awarded for our excellence by numerous professional organizations, our team at Lightning Bug Electric has the skills and knowledge to help you with a wide array of electrical problems. Our Marietta electricians have over 25 years of experience in the industry and we always provide around-the-clock availability. If you are looking for a team led by a master electrician, you have come to the right place. We provide residential and commercial customers with wiring and rewiring, lighting upgrades, outlets and switches, full electrical remodeling and installation, and more. Call our team today to schedule your free electrical service estimate.

"Leyton was fantastic. Arrived right on time(and scheduling was very easy and convenient- got my exact day and time I wanted.) He saw exactly what I needed for installing a ceiling fan, and it looks, and works perfectly. The price was more than fair. Second experience with LBE, and again, 5 stars!"

Stephen K on May 2025


Doc Enterprise Contractors

2573 Stratford Lane
5.00(
1
)
Approved Pro

Doc Enterprise Contractors

2573 Stratford Lane
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


Avatar for 3 One 4 Data

3 One 4 Data

188 Gilleland Drive
5.00(
14
)
Approved Pro

3 One 4 Data

188 Gilleland Drive
5.00(
14
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
30 years of experience

3one4 Data 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.

"Very professional. Highly recommend "

Jonathan K on January 2025

3one4 Data 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.

"Very professional. Highly recommend "

Jonathan K on January 2025


Avatar for Rico Electric

Rico Electric

135 Avalon Forest Dr
4.75(
4
)
Approved Pro

Rico Electric

135 Avalon Forest Dr
4.75(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We can 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. Podemos asumir una amplia gama de proyectos eléctricos residenciales y comerciales que incluyen la instalación completa para adiciones y remodelaciones, así como actualizaciones de cableado / paneles, y una variedad de otros proyectos. Estamos orgullosos de la calidad de nuestro trabajo y nuestro compromiso con resultados sobresalientes. Esperamos construir relaciones sólidas y duraderas con nuestros clientes y garantizar su satisfacción.

"Takes pride in his work"

Rebecca S on November 2021

We can 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. Podemos asumir una amplia gama de proyectos eléctricos residenciales y comerciales que incluyen la instalación completa para adiciones y remodelaciones, así como actualizaciones de cableado / paneles, y una variedad de otros proyectos. Estamos orgullosos de la calidad de nuestro trabajo y nuestro compromiso con resultados sobresalientes. Esperamos construir relaciones sólidas y duraderas con nuestros clientes y garantizar su satisfacción.

"Takes pride in his work"

Rebecca S on November 2021


Avatar for Dependable Electric Service, LLC

Dependable Electric Service, LLC

4413 Mendi Ct Suite D
4.64(
378
)
Approved Pro

Dependable Electric Service, LLC

4413 Mendi Ct Suite D
4.64(
378
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
11 years of experience

At Dependable Electric, we pride ourselves on our dedication to our local customers, ensuring you have an electrician you can trust and rely on every step of the way. As a family-owned company, we believe that competent and safe electrical work should not be handled by just anyone. Our team of specialists brings over 50 years of combined experience to the table and is certified, licensed, and trained to deliver excellent service every time. We treat your home or business with the same care as we would our own, ensuring that your electrical woes are a thing of the past. Let Dependable Electric be the name you turn to for a job done safely and correctly, the first time, every time.

"Consumer beware!!! This electric company put a lien on my house for work that wasn't completed. They were well aware that the contractor was paid in full and he needed to be the one to pay them but they decided to put a lien on my property anyways instead of taking the contractor to court. The work done was poor quality and they used the wrong rated wires on an outdoor structure. They left our bathroom electrical hanging out of the wall and didn't even put outlet covers on the new outlets. We have been forced to obtain legal representation to get this sorted out, please save a massive headache and money by using any other electric company than dependable electric services."

Nathan D on April 2024

At Dependable Electric, we pride ourselves on our dedication to our local customers, ensuring you have an electrician you can trust and rely on every step of the way. As a family-owned company, we believe that competent and safe electrical work should not be handled by just anyone. Our team of specialists brings over 50 years of combined experience to the table and is certified, licensed, and trained to deliver excellent service every time. We treat your home or business with the same care as we would our own, ensuring that your electrical woes are a thing of the past. Let Dependable Electric be the name you turn to for a job done safely and correctly, the first time, every time.

"Consumer beware!!! This electric company put a lien on my house for work that wasn't completed. They were well aware that the contractor was paid in full and he needed to be the one to pay them but they decided to put a lien on my property anyways instead of taking the contractor to court. The work done was poor quality and they used the wrong rated wires on an outdoor structure. They left our bathroom electrical hanging out of the wall and didn't even put outlet covers on the new outlets. We have been forced to obtain legal representation to get this sorted out, please save a massive headache and money by using any other electric company than dependable electric services."

Nathan D on April 2024


".."

Mahendra M 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!

".."

Mahendra M on November 2024


Avatar for Hamilton LP Lightning Rods

Hamilton LP Lightning Rods

14350 Mundy Dr. Suite 800
5.00(
9
)
Approved Pro

Hamilton LP Lightning Rods

14350 Mundy Dr. Suite 800
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
66 local quotes requested

With more than 30 yrs of experience, Hamilton Lightning Protection is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"He was on time and has a great work ethic. His workers were hard workers and did a great job."

Monte B on September 2022

With more than 30 yrs of experience, Hamilton Lightning Protection is dedicated to providing our customers with the best quality at a great price. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

"He was on time and has a great work ethic. His workers were hard workers and did a great job."

Monte B on September 2022


Bullzeye Electric, LLC

1248 Granite Lane
4.86(
109
)
Approved Pro

Bullzeye Electric, LLC

1248 Granite Lane
4.86(
109
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
21 local quotes requested

Bullzeye Electric, LLC, is a five star rated electrical company serving all of metro Atlanta. We are a locally owned and operated company. Bullzeye Electric, LLC, was started with the intention of providing the type of customer service that is missing in the service industry. We strive to show you, our customer, honesty, dependability and the attention to detail that you thought was a thing of the past. We offer free estimates and up-front pricing with no hidden fees. Please call for your free quote and meet your new family electrician. You will see why... "We Hit The Mark!"

"Super responsive, fast quote and was able to get work done quickly at fair price. Great Electrician and overall good guy."

Brian G on June 2025

Bullzeye Electric, LLC, is a five star rated electrical company serving all of metro Atlanta. We are a locally owned and operated company. Bullzeye Electric, LLC, was started with the intention of providing the type of customer service that is missing in the service industry. We strive to show you, our customer, honesty, dependability and the attention to detail that you thought was a thing of the past. We offer free estimates and up-front pricing with no hidden fees. Please call for your free quote and meet your new family electrician. You will see why... "We Hit The Mark!"

"Super responsive, fast quote and was able to get work done quickly at fair price. Great Electrician and overall good guy."

Brian G on June 2025


Avatar for W B Lightning Rods

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
257 local quotes requested

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

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Generator Install questions, answered by experts

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

The Cumming, GA homeowners’ guide to generator installs

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

What do you need done? We’ll find top pros.
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