Top-rated generator install pros.

Get matched with top generator install pros in Alpharetta, GA

There are 14 highly-rated local generator install pros.

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    Verified generator installs reviews

Find Generator install pros in Alpharetta

Avatar for TE Certified Electrical, Plumbing, Heating & Cooling

TE Certified Electrical, Plumbing, Heating & Cooling

9800 Old Dogwood Rd
4.84(
589
)
Approved Pro

TE Certified Electrical, Plumbing, Heating & Cooling

9800 Old Dogwood Rd
4.84(
589
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
252 local quotes requested

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

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

3705 Harrison Rd SW
4.66(
131
)
Approved Pro

Keep Smiling Plumbing & Electric

3705 Harrison Rd SW
4.66(
131
)
Approved Pro
Customers say: Super punctual
1353 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.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 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.

"They told us "Our dispatch fee to come out is $39 and we waive that towards any work or repairs, including diagnostics." The electrician went to check and stayed at the property for less than 5 mins after confirmation to do full diagnostic of the electrical system. I don't think less than 5 mins is enough to run a full diagnostic and later on advise to upgrade the whole panel."

John P on May 2025


Franklin Home Services LLC - Electrical Division

211 Allatoona Highland Drive
5.00(
9
)
Approved Pro

Franklin Home Services LLC - Electrical Division

211 Allatoona Highland Drive
5.00(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
72 local quotes requested

We specialize in electrical services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"The guy knew his stuff and was very professional."

JL H on June 2025

We specialize in electrical services, repairs, installs, troubleshooting, lighting, panel upgrades, ceiling fans, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"The guy knew his stuff and was very professional."

JL H on June 2025


Avatar for Cronan Electric Service

Cronan Electric Service

714 Bill Hasty Boulevard
5.00(
2
)
Approved Pro

Cronan Electric Service

714 Bill Hasty Boulevard
5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
49 local quotes requested

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"I have used this company on multiple occasions. They have always been prompt, able to complete every job that I hired them for, and fairly priced. I would definitely recommend them for any electrical problem or installation that you need."

Mike B on February 2025

We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"I have used this company on multiple occasions. They have always been prompt, able to complete every job that I hired them for, and fairly priced. I would definitely recommend them for any electrical problem or installation that you need."

Mike B on February 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
331 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


Avatar for M.J. Power LLC

M.J. Power LLC

5341 Old Hwy 5
5.00(
15
)
Approved Pro

M.J. Power LLC

5341 Old Hwy 5
5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
112 local quotes requested

With over a decade of experience, we offer licensed and fully insured electrical services that prioritize both expertise and reliability. We ensure the highest standards of craftsmanship, delivering top-quality workmanship in every project we undertake. Clients can rest assured knowing that their electrical needs are in capable hands, providing them with peace of mind and confidence in the safety and efficiency of their electrical systems.

"Most professional electrician i ever had! Would highly recommend to anybody. Thanks M.J. Power!!!"

Michael A on June 2025

With over a decade of experience, we offer licensed and fully insured electrical services that prioritize both expertise and reliability. We ensure the highest standards of craftsmanship, delivering top-quality workmanship in every project we undertake. Clients can rest assured knowing that their electrical needs are in capable hands, providing them with peace of mind and confidence in the safety and efficiency of their electrical systems.

"Most professional electrician i ever had! Would highly recommend to anybody. Thanks M.J. Power!!!"

Michael A on June 2025


Avatar for Good N Handy Electrical

Good N Handy Electrical

1651 Hannah Rd
5.00(
23
)
Approved Pro

Good N Handy Electrical

1651 Hannah Rd
5.00(
23
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
40 local quotes requested

Good N' Handy provides top quality professional electrical and handyman services in Lawrenceville, GA and surrounding areas, commercial and residential. We love what we do and it shows in the quality of our work. Give us a call or click for an estimate today!

"VERY Good work for a fair price."

Tim B on January 2025

Good N' Handy provides top quality professional electrical and handyman services in Lawrenceville, GA and surrounding areas, commercial and residential. We love what we do and it shows in the quality of our work. Give us a call or click for an estimate today!

"VERY Good work for a fair price."

Tim B on January 2025


Avatar for Henry County Electric

Henry County Electric

4760 Peeksville Road
4.88(
17
)
Approved Pro

Henry County Electric

4760 Peeksville Road
4.88(
17
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
193 local quotes requested

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Great service quick response"

Tammie W on January 2025

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"Great service quick response"

Tammie W on January 2025


TR&JP HANDY ELECTRICIANS

4.89(
9
)
Approved Pro

TR&JP HANDY ELECTRICIANS

4.89(
9
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
172 local quotes requested

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Julues, the technician, was great. He was prompt and professional. He did a wonderful job installing our ceiling fans and replacing light fixtures. We would use his services again."

D'Andrea M on September 2025

We guarantee your satisfaction, and we won’t leave until the job is done right. Our team has quality experience in this industry, and we make sure our customers are happy before we leave. Call or click to schedule an estimate today!

"Julues, the technician, was great. He was prompt and professional. He did a wonderful job installing our ceiling fans and replacing light fixtures. We would use his services again."

D'Andrea M on September 2025


Avatar for MIKE & LIGHTS

MIKE & LIGHTS

5457 Hiram Lithia Springs Road Southwest
New on AngiNew on Angi
Approved Pro

MIKE & LIGHTS

5457 Hiram Lithia Springs Road Southwest
New on AngiNew on Angi
Approved Pro
37 local quotes requested
3 years of experience

At MIKE & LIGHTS, we are dedicated to brightening up your world with top-notch electrical services. As a premier electrical company, we specialize in both residential and commercial electrical solutions, ensuring that every project is executed with precision, professionalism, and a touch of innovation.

At MIKE & LIGHTS, we are dedicated to brightening up your world with top-notch electrical services. As a premier electrical company, we specialize in both residential and commercial electrical solutions, ensuring that every project is executed with precision, professionalism, and a touch of innovation.

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Generator Install questions, answered by experts

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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

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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

If you’re wondering whether gas generators produce carbon monoxide, know that natural gas generators do not produce carbon monoxide if they are functioning properly, as natural gas burns cleanly. However, if the generator malfunctions and the gas does not burn completely, there is potential for carbon dioxide to be produced. To prevent malfunctions, it's crucial to perform regular maintenance, including running the generator weekly and scheduling professional inspections every 6 to 12 months. Also, be sure to test your carbon monoxide detectors regularly to ensure they function in the rare case of the generator producing carbon monoxide.

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The Alpharetta, GA homeowners’ guide to generator installs

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