Top-rated generator installers.

Get matched with top generator installers in Cosby, TN

There are 3 highly-rated local generator installers.

Generator installers in Cosby

Alternative Electrical Services
255 Old Dandridge Pike
5.00(
2
)
Approved Pro
Alternative Electrical Services
255 Old Dandridge Pike
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

With years of experience serving the area, we are your solution for all your landscaping needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"Doug is reliable.. when he says he will be there.. he is... when he gives you an estimate it's more then fair and very close to what he thought it would be. He knows his stuff and he is very personable too. You don't get that with many trades people. I would hire him again and would recommend him highly to everyone I know"

darlene l on August 2022

With years of experience serving the area, we are your solution for all your landscaping needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers! Call us today so we can discuss your needs and make a plan that fits your budget. Satisfaction guaranteed!

"Doug is reliable.. when he says he will be there.. he is... when he gives you an estimate it's more then fair and very close to what he thought it would be. He knows his stuff and he is very personable too. You don't get that with many trades people. I would hire him again and would recommend him highly to everyone I know"

darlene l on August 2022


Santi & Son's Construction LLC
1935 W Morris Blvd Suite #250
New on HomeAdvisorNew on Angi
Approved Pro
Santi & Son's Construction LLC
1935 W Morris Blvd Suite #250
New on AngiNew on HomeAdvisor
Approved Pro
8 years of experience
Free onsite estimate

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

We've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing. Being a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!


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
119 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


Mr. Electric Of Tri Cities
3201 Kimberly Ct
4.87(
15
)
Mr. Electric Of Tri Cities
3201 Kimberly Ct
4.87(
15
)
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mr. Electric is a locally owned franchise serving the East Tennessee cities of Tri-Cities, Knoxville, Morristown and Sevierville, as well as communities in between. As full-service electricians, we can handle all your electrical needs from complete panel changes and home re-wiring to electrical systems for outdoor living spaces and boat docks. Need fixtures installed? We’ve got it. Installing a hot tub or pool? We can help. Call us to set up an appointment for a service technician to evaluate your situation and give you a quote. *Fees for quote waived with contracted work. After-hours emergency service is available. At Mr. Electric we have the power to make things better!

"Awesome technician, very polite friendly. Very knowledgeable"

Wayne H on January 2023

Mr. Electric is a locally owned franchise serving the East Tennessee cities of Tri-Cities, Knoxville, Morristown and Sevierville, as well as communities in between. As full-service electricians, we can handle all your electrical needs from complete panel changes and home re-wiring to electrical systems for outdoor living spaces and boat docks. Need fixtures installed? We’ve got it. Installing a hot tub or pool? We can help. Call us to set up an appointment for a service technician to evaluate your situation and give you a quote. *Fees for quote waived with contracted work. After-hours emergency service is available. At Mr. Electric we have the power to make things better!

"Awesome technician, very polite friendly. Very knowledgeable"

Wayne H on January 2023


Providing all your electrical service needs.


Crowell Electric
Unknown
No reviews
Crowell Electric
Unknown
No reviews
14 years of experience

After several years working in the electrical/HVAC field Crowell Electric was founded in early 2011 with the goal of being a full service, customer friendly Electrical/HVAC Mechanical contracting company. We currently have eight employees and cover a work area that spans the majority of TN and AL. We do not see any project as too small or large and treat all with the same level of preparation and professionalism. We appreciate you taking the time to evaluate Crowell Electric for your project and look forward to hearing from you with any questions you might have.

After several years working in the electrical/HVAC field Crowell Electric was founded in early 2011 with the goal of being a full service, customer friendly Electrical/HVAC Mechanical contracting company. We currently have eight employees and cover a work area that spans the majority of TN and AL. We do not see any project as too small or large and treat all with the same level of preparation and professionalism. We appreciate you taking the time to evaluate Crowell Electric for your project and look forward to hearing from you with any questions you might have.


Tipton Electric, LLC
PO Box 36
5.00(
1
)
Tipton Electric, LLC
PO Box 36
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a small husband and wife owned business located in Tiptonville, TN. We employee two service technicians/electricians and are licensed and insured to provide you with and knowledgeable service for when you need it most. We are the only Generac Automatic Home Standby Generator sales and service dealer located in Northwest TN. We service all of Northwest TN and the Bootheel of MO. Our technicians have been to multiple Generac training classes and continually take refresher courses to stay ontop of their trade. For your convenience we accept all major credit crads, debit cards, cash or checks.

We are a small husband and wife owned business located in Tiptonville, TN. We employee two service technicians/electricians and are licensed and insured to provide you with and knowledgeable service for when you need it most. We are the only Generac Automatic Home Standby Generator sales and service dealer located in Northwest TN. We service all of Northwest TN and the Bootheel of MO. Our technicians have been to multiple Generac training classes and continually take refresher courses to stay ontop of their trade. For your convenience we accept all major credit crads, debit cards, cash or checks.



GREGG'S ELECTRICAL SVC LLC
3402 TURKEY RUN LN
4.36(
14
)
GREGG'S ELECTRICAL SVC LLC
3402 TURKEY RUN LN
4.36(
14
)
Customers say: Quality work
33 years of experience

Gregg's Electrical Service LLC has been in business for over 20+ years! We are a small family owned business based in the Karns area. We would love to help you with your needs.

"Chris Gregg performed the work, and he worked expeditiously and professionally. The new transmitter in the fan doesn't work yet, but it's probably because we have the wrong control box (my error). The pole light works very well. The doorbell cameras are a problem - the backdoor works fine, the front door not yet. We think it's a problem with the voltage from the transformer, and Chris has committed to figuring out the wiring and return to complete that job. The doorbell itself works fine, but the camera is yet to function. Chris was very helpful in explaining the issue to me."

Donald L on November 2020

Gregg's Electrical Service LLC has been in business for over 20+ years! We are a small family owned business based in the Karns area. We would love to help you with your needs.

"Chris Gregg performed the work, and he worked expeditiously and professionally. The new transmitter in the fan doesn't work yet, but it's probably because we have the wrong control box (my error). The pole light works very well. The doorbell cameras are a problem - the backdoor works fine, the front door not yet. We think it's a problem with the voltage from the transformer, and Chris has committed to figuring out the wiring and return to complete that job. The doorbell itself works fine, but the camera is yet to function. Chris was very helpful in explaining the issue to me."

Donald L on November 2020


Power Solutions
2409 Lebanon Rd
4.71(
14
)
Power Solutions
2409 Lebanon Rd
4.71(
14
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Power Solutions, LLc Of NC is a full service generator company specializing in installation, warranty, repair and maintenance of standby generators. We offer free estimates on standby generators of all sizes. With our small staff, we are able to keep costs down and in turn pass the savings on to you. Please contact us today with any of your generator needs.

"I have used Power Solutions for a number of years and have been very pleased by the work performed by Mr. Raymond. However, I paid $427.00 for twice a year service in November 2022. To date, I have not received any service, nor does Power Solutions return my calls or my emails. I am truly surprised by this as I always received excellent service from them in the past. Regarding the next question on this form, money was paid but no services were performed. Regarding the question of would I hire them again, unless someone can explain what is happening, I probably would not hire them again."

Bobby M on January 2023

Power Solutions, LLc Of NC is a full service generator company specializing in installation, warranty, repair and maintenance of standby generators. We offer free estimates on standby generators of all sizes. With our small staff, we are able to keep costs down and in turn pass the savings on to you. Please contact us today with any of your generator needs.

"I have used Power Solutions for a number of years and have been very pleased by the work performed by Mr. Raymond. However, I paid $427.00 for twice a year service in November 2022. To date, I have not received any service, nor does Power Solutions return my calls or my emails. I am truly surprised by this as I always received excellent service from them in the past. Regarding the next question on this form, money was paid but no services were performed. Regarding the question of would I hire them again, unless someone can explain what is happening, I probably would not hire them again."

Bobby M on January 2023

Showing 1-10 of 14

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
Apr 1, 2025
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.
Share project details to get started.