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Average homeowner rating star icon4.6
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Verified generator installations reviews

Generator installers in Nelson

Avatar for TE Certified Electrical, Plumbing, Heating & Cooling
TE Certified Electrical, Plumbing, Heating & Cooling
9800 Old Dogwood Rd
4.84(
588
)
Approved Pro
TE Certified Electrical, Plumbing, Heating & Cooling
9800 Old Dogwood Rd
4.84(
588
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
190 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

"Prompt, reasonably priced"

Brigette G on March 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

"Prompt, reasonably priced"

Brigette G on March 2025


Hamrick Power Systems
40 Buckner Way
4.67(
3
)
Approved Pro
Hamrick Power Systems
40 Buckner Way
4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
53 local quotes requested

Hamrick Power SYSTEMS is an authorized Generac, Kohler and Cummins full service generator dealer. We offer turnkey jobs. All of the work is done in-house so you will not be burdened by hiring additional contractors to complete your generator job. This is how we keep our prices lower than most of our competitors . 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 our services offered and call or click to schedule a free estimate today.

"Exceptionally well."

Phyllis J on October 2023

Hamrick Power SYSTEMS is an authorized Generac, Kohler and Cummins full service generator dealer. We offer turnkey jobs. All of the work is done in-house so you will not be burdened by hiring additional contractors to complete your generator job. This is how we keep our prices lower than most of our competitors . 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 our services offered and call or click to schedule a free estimate today.

"Exceptionally well."

Phyllis J on October 2023


Avatar for TE Certified Electrical, Plumbing, Heating & Cooling
TE Certified Electrical, Plumbing, Heating & Cooling
3400 Cobb International Blvd NW
5.00(
4
)
Approved Pro
TE Certified Electrical, Plumbing, Heating & Cooling
3400 Cobb International Blvd NW
5.00(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
375 local quotes requested

TE Certified Electrical, Plumbing, Heating & Cooling understands there is never a great time to need a home repair. That's why we make scheduling easy, arrive in three-hour arrival windows, drive fully stocked trucks, give flat rate pricing, and back our work with a lifetime workmanship guarantee. Services offered: Residential Electrical, Plumbing, Heating and Cooling - Inspection, Repair, Replacement, Maintenance. Electrical - Rewiring, Outlets, and Switches, Whole House Backup Generators, Indoor/Outdoor Lighting, Car Chargers, Surge Protection, Ethernet & Cable Installation. Plumbing - Water Lines, Water Heaters, Tankless Water Heaters, Fixtures and Faucets, Garbage Disposals, Sewer Lines, and Pressure Regulators. HVAC - Air Conditioners, Furnaces, Air Handlers, Heat Pumps, Ductless Heaters, Indoor Air Quality

"Dakota Cash and his apprentice Vincent were very knowledgeable and passionate about doing quality work. They showed up within the window given explained everything very thoroughly."

Bryant O on June 2024

TE Certified Electrical, Plumbing, Heating & Cooling understands there is never a great time to need a home repair. That's why we make scheduling easy, arrive in three-hour arrival windows, drive fully stocked trucks, give flat rate pricing, and back our work with a lifetime workmanship guarantee. Services offered: Residential Electrical, Plumbing, Heating and Cooling - Inspection, Repair, Replacement, Maintenance. Electrical - Rewiring, Outlets, and Switches, Whole House Backup Generators, Indoor/Outdoor Lighting, Car Chargers, Surge Protection, Ethernet & Cable Installation. Plumbing - Water Lines, Water Heaters, Tankless Water Heaters, Fixtures and Faucets, Garbage Disposals, Sewer Lines, and Pressure Regulators. HVAC - Air Conditioners, Furnaces, Air Handlers, Heat Pumps, Ductless Heaters, Indoor Air Quality

"Dakota Cash and his apprentice Vincent were very knowledgeable and passionate about doing quality work. They showed up within the window given explained everything very thoroughly."

Bryant O on June 2024


Avatar for Casteel Heating, Cooling, Plumbing & Electrical
Casteel Heating, Cooling, Plumbing & Electrical
2218 Canton Rd
4.68(
916
)
Approved Pro
Casteel Heating, Cooling, Plumbing & Electrical
2218 Canton Rd
4.68(
916
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
303 local quotes requested

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I have missing items from my house!"

Josh M on September 2024

**2018, 2017, 2016,2015, 2014, & 2013 SUPER SERVICE AWARD WINNER!** During the past 30 years, Casteel Heating and Cooling has been one of the most respected names in metro Atlanta for heating and air conditioning. Since then we have grown and added a Plumbing and Electrical division with some of the industries best technicians! We are now offering experts in hydro jetting to clear even the worst clogged drains in your commercial or residential property. With over 30,000 5 star and A+reviews, the #1 Plumber in Atlanta as voted by Atlanta Home Improvement Magazine, and having been awarded Top 25 Small Business of the year -7 times in a row, Casteel is your only call to have your home repairs completed in a timely and budget friendly manner by the best! When we say "We'll take Amazing Care of You," we guarantee it! Your Amazing Care continues to our craftsmanship, technician know how, and even to the job clean up. Your home will be left as if we were never there. Knowing that you are a satisfied customer is our top priority and each survey is personally seen and responded to. As one of the top Heating, Cooling, Plumbing and Electrical companies in the metro Atlanta area, Casteel is your one and only call for your home service needs.

"I have missing items from my house!"

Josh M on September 2024


Avatar for Lightning Bug Electric
Lightning Bug Electric
629 COLLINS RD
4.73(
474
)
Approved Pro
Lightning Bug Electric
629 COLLINS RD
4.73(
474
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
362 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.

"I highly recommend Lightning Bug Electric! The technicians were incredibly knowledgeable and helpful. They took the time to explain everything clearly, making sure I understood the process. I was so impressed with their work that I’m hiring them again for another project. I’ve found my go-to electrician!"

Caroline C on March 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.

"I highly recommend Lightning Bug Electric! The technicians were incredibly knowledgeable and helpful. They took the time to explain everything clearly, making sure I understood the process. I was so impressed with their work that I’m hiring them again for another project. I’ve found my go-to electrician!"

Caroline C on March 2025


Avatar for M.J. Power LLC
M.J. Power LLC
5341 Old Hwy 5
5.00(
14
)
Approved Pro
M.J. Power LLC
5341 Old Hwy 5
5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
191 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.

"It was such a pleasure dealing with MJ Power. We needed a very complicated chandelier put together and hung. Jake arrived exactly when he said he would be there and finished the job beautifully. We are definitely going to use MJ Power for all of our electrical work. Thank you so much for providing us with your excellent service!!!"

Kathy C on January 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.

"It was such a pleasure dealing with MJ Power. We needed a very complicated chandelier put together and hung. Jake arrived exactly when he said he would be there and finished the job beautifully. We are definitely going to use MJ Power for all of our electrical work. Thank you so much for providing us with your excellent service!!!"

Kathy C on January 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
87 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 Britebox Electrical Services
Britebox Electrical Services
1787 Williams Dr
4.70(
20
)
Approved Pro
Britebox Electrical Services
1787 Williams Dr
4.70(
20
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
199 local quotes requested

BriteBox Electrical is Atlanta's Elevated Electrician. From re-wiring an outlet, to home back up generators, to full home Audio, Video low voltage and home security needs. We provide a full range of services for homeowners. Estimates on back up generators and home automation system designs are free.

"Electrician identified then installed the charger in a location where the cord would reach my car. He the completed the cable run back to the distribution panel in a cosmetically appealing way. Excellent job."

MARTIN B on November 2024

BriteBox Electrical is Atlanta's Elevated Electrician. From re-wiring an outlet, to home back up generators, to full home Audio, Video low voltage and home security needs. We provide a full range of services for homeowners. Estimates on back up generators and home automation system designs are free.

"Electrician identified then installed the charger in a location where the cord would reach my car. He the completed the cable run back to the distribution panel in a cosmetically appealing way. Excellent job."

MARTIN B on November 2024


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


Morris Home Solutions
580 Twin Mountain Lake Cir.
5.00(
2
)
Approved Pro
Morris Home Solutions
580 Twin Mountain Lake Cir.
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

Welcome to Morris Home Solutions! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Kyle and his father are fantastic. They came out on time gave me a fair quote and came out and installed my whole house generator. They will be out to finalize once I have my gas line run."

Chris D on October 2022

Welcome to Morris Home Solutions! We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"Kyle and his father are fantastic. They came out on time gave me a fair quote and came out and installed my whole house generator. They will be out to finalize once I have my gas line run."

Chris D on October 2022

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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
Mar 3, 2025
Mar 3, 2025
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.
Boy and girl jumping on the couch sofa
Apr 1, 2025
Apr 1, 2025
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.
A natural gas generator outside a house
Apr 1, 2025
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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.
A house generator in the backyard of a house
Apr 1, 2025
Apr 1, 2025
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
Apr 1, 2025
Apr 1, 2025
Diesel remains a popular fuel option for a variety of home generators, but you will need to plan your maintenance carefully. Here’s how it works.
emergency power supply outside home
Apr 4, 2025
Apr 4, 2025
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.