Top-rated generator install pros.

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There are 2 highly-rated local generator install pros.

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Avatar for Mr. Electric of Chattanooga

Mr. Electric of Chattanooga

4295 Cromwell Rd
3.00(
4
)
•Approved Pro

Mr. Electric of Chattanooga

4295 Cromwell Rd
3.00(
4
)
•Approved Pro
Customers say: Super punctual
106 local quotes requested
29 years of experience

Mr. Electric of Chattanooga provides our local community with trusted electrical services for homes and businesses in the heart of our community. We pride ourselves in serving our customers with honesty and integrity; backed by the Neighborly Done Right Promise™, we offer transparent pricing and exceptional workmanship. From safety inspections, panel upgrades, generator installation, generator repairs, installations, repairs or any other electrical needs you have; our licensed electricians are committed to making your home or business safe while delivering exceptional service with up-front pricing. Let Mr. Electric of Chattanooga give you peace of mind about your electrical systems inside your home.

"Would not recommend Mr. Electric; they will try to scam and overcharge you. My girlfriend called them for a fried breaker and the technician tried to upsell and convince us to replace the ENTIRE electrical panel and additional unnecessary fixes for over $14,000. We called a different company for a second opinion and they assured us that the panel did not need a complete replacement to get things up and running, and only recommended a few replacements for safety measures. We were able to get the initial situation fixed the same day through the second company, all covered under the other companies ‘free second opinion promotion’ they were running. The thing is, we would have been willing to get some of the recommended safety work done, and still plan on doing it with a different company, but the Mr.Electric tech representative was pushy and dishonest, and tried to get us to finance a way more expensive fix than needed. I don’t frequently leave reviews, and I know it’s nearly impossible these days to find a company that isn’t trying to upsell or push you into something, but this is one company that should be avoided at all costs."

Tristan N on July 2023

Mr. Electric of Chattanooga provides our local community with trusted electrical services for homes and businesses in the heart of our community. We pride ourselves in serving our customers with honesty and integrity; backed by the Neighborly Done Right Promise™, we offer transparent pricing and exceptional workmanship. From safety inspections, panel upgrades, generator installation, generator repairs, installations, repairs or any other electrical needs you have; our licensed electricians are committed to making your home or business safe while delivering exceptional service with up-front pricing. Let Mr. Electric of Chattanooga give you peace of mind about your electrical systems inside your home.

"Would not recommend Mr. Electric; they will try to scam and overcharge you. My girlfriend called them for a fried breaker and the technician tried to upsell and convince us to replace the ENTIRE electrical panel and additional unnecessary fixes for over $14,000. We called a different company for a second opinion and they assured us that the panel did not need a complete replacement to get things up and running, and only recommended a few replacements for safety measures. We were able to get the initial situation fixed the same day through the second company, all covered under the other companies ‘free second opinion promotion’ they were running. The thing is, we would have been willing to get some of the recommended safety work done, and still plan on doing it with a different company, but the Mr.Electric tech representative was pushy and dishonest, and tried to get us to finance a way more expensive fix than needed. I don’t frequently leave reviews, and I know it’s nearly impossible these days to find a company that isn’t trying to upsell or push you into something, but this is one company that should be avoided at all costs."

Tristan N on July 2023

Avatar for Foster Electric

Foster Electric

2626 Walker Rd
4.88(
372
)
•Approved Pro

Foster Electric

2626 Walker Rd
4.88(
372
)
•Approved Pro
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
41 local quotes requested

FREE QUOTES ⚡CALL (423) 892-6759 ⚡ ALL Electrical. TV Mounting. Fast & Reliable. ⭐⭐⭐⭐⭐ 5-Star Service. Insured, Bonded, and Licensed for YOUR protection. Licensed in TN & GA. Solar Panel Installation.

"Amazing experience with Foster Electric! On Sunday our dryer caught fire which caused flickering lights and blinking electronics. A call to Foster Electric diagnosed the problem over the phone, had us make sure we unplug everything and had Joshua out right away. Joshua diagnosed the technical problem – it seems our electric box was old and rotted – and made sure the new installations were up to code in my community. He finished four hours earlier than promised and walked back through the house with me to make sure I was back in business. With the exception of the dryer (it was toast), some dead light bulbs were the only problem – easily replaced. Without Foster Electric and his employee Joshua our house could have burnt down. They replaced my faulty electric box, had EPB turn the power back on and viola, a very happy customer. HIGHLY RECOMMEND!"

THOMAS H on April 2020

FREE QUOTES ⚡CALL (423) 892-6759 ⚡ ALL Electrical. TV Mounting. Fast & Reliable. ⭐⭐⭐⭐⭐ 5-Star Service. Insured, Bonded, and Licensed for YOUR protection. Licensed in TN & GA. Solar Panel Installation.

"Amazing experience with Foster Electric! On Sunday our dryer caught fire which caused flickering lights and blinking electronics. A call to Foster Electric diagnosed the problem over the phone, had us make sure we unplug everything and had Joshua out right away. Joshua diagnosed the technical problem – it seems our electric box was old and rotted – and made sure the new installations were up to code in my community. He finished four hours earlier than promised and walked back through the house with me to make sure I was back in business. With the exception of the dryer (it was toast), some dead light bulbs were the only problem – easily replaced. Without Foster Electric and his employee Joshua our house could have burnt down. They replaced my faulty electric box, had EPB turn the power back on and viola, a very happy customer. HIGHLY RECOMMEND!"

THOMAS H on April 2020

Avatar for Mister Sparky

Mister Sparky

710 South Thornton Ave Suite E
4.64(
1,097
)
•Approved Pro

Mister Sparky

710 South Thornton Ave Suite E
4.64(
1,097
)
•Approved Pro
Customers say: Quality work
3 years of experience
Free onsite estimate

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!

"Murphy was are technician and he did a Great job! Fast worker and willing to help!"

Deena B on January 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!

"Murphy was are technician and he did a Great job! Fast worker and willing to help!"

Deena B on January 2024

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
312 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

Avatar for McCay Southern Electrical, LLC

McCay Southern Electrical, LLC

148 Co Rd 738
5.00(
3
)
•Approved Pro

McCay Southern Electrical, LLC

148 Co Rd 738
5.00(
3
)
•Approved Pro
Customers say: Quick response
26 local quotes requested
15 years of experience

McCay Southern Generators is your first choice for professional residential electrical project sales and service. We are an authorized Generac generator dealer and offer a full line of standby generators for your home. We are fully licensed and insured to ensure project is completed efficiently and affordable. Find out why our customers love working with McCay Southern Generoators. Call us today!

"Very professional sales and installation people."

Domenick A on August 2024

McCay Southern Generators is your first choice for professional residential electrical project sales and service. We are an authorized Generac generator dealer and offer a full line of standby generators for your home. We are fully licensed and insured to ensure project is completed efficiently and affordable. Find out why our customers love working with McCay Southern Generoators. Call us today!

"Very professional sales and installation people."

Domenick A on August 2024

Avatar for Elemental Electrical

Elemental Electrical

1400 West 53rd Street
5.00(
34
)
•Approved Pro

Elemental Electrical

1400 West 53rd Street
5.00(
34
)
•Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
32 local quotes requested

Elemental Electrical concentrates its expertise in the residential field. Often when working in a home multiple specialists are needed to get the job done. An electrician for the outlet, a handyman to repair the walls, a plumber for the disposal. Call Elemental Electrical, and we get it done in one visit, saving you time and money. We are Licensed, Bonded, and fully Insured. We are able to offer solutions we know are Code compliant and most importantly, as safe as possible. Pricing is up front, meaning you will have a quote before we leave, and each task is line Item, so you can choose how the work proceeds. If safety issues are discovered, they are always quoted before the repair work starts. You can rely on Elemental Electrical to bring quality work and kindly customer care to your biggest investment, your home.

"On time project assessment. Fast return from hardware store with multiple fixes to complete the project. Great people to work with and stayed in budget."

Roger H on March 2025

Elemental Electrical concentrates its expertise in the residential field. Often when working in a home multiple specialists are needed to get the job done. An electrician for the outlet, a handyman to repair the walls, a plumber for the disposal. Call Elemental Electrical, and we get it done in one visit, saving you time and money. We are Licensed, Bonded, and fully Insured. We are able to offer solutions we know are Code compliant and most importantly, as safe as possible. Pricing is up front, meaning you will have a quote before we leave, and each task is line Item, so you can choose how the work proceeds. If safety issues are discovered, they are always quoted before the repair work starts. You can rely on Elemental Electrical to bring quality work and kindly customer care to your biggest investment, your home.

"On time project assessment. Fast return from hardware store with multiple fixes to complete the project. Great people to work with and stayed in budget."

Roger H on March 2025

Avatar for Allstar Electric, LLC

Allstar Electric, LLC

33 2nd St SW
4.98(
21
)
•Approved Pro

Allstar Electric, LLC

33 2nd St SW
4.98(
21
)
•Approved Pro
Customers say: Quick response
17 local quotes requested
6 years of experience

Allstar Electric, LLC brings an unmatched commitment to excellence to your electrical projects. We have 21 years experience delivering unsurpassed professionalism, expertise, and value. We take pride in providing our customers with personalized customer service, the highest industry standards, and top quality workmanship. References available upon request. Give us a call today!

"Did a fantastic job"

Jay B on September 2025

Allstar Electric, LLC brings an unmatched commitment to excellence to your electrical projects. We have 21 years experience delivering unsurpassed professionalism, expertise, and value. We take pride in providing our customers with personalized customer service, the highest industry standards, and top quality workmanship. References available upon request. Give us a call today!

"Did a fantastic job"

Jay B on September 2025

MT Electrical services

1398 Old Chattanooga Pike Southwest
No reviews yet

MT Electrical services

1398 Old Chattanooga Pike Southwest
No reviews yet
12 years of experience

Residential Electrical work, we offer a 24-hour emergency electrical service and we also have an electrical Preventative Maintenace plan we offer. We repair broken electrical systems we troubleshoot and repair issues

Residential Electrical work, we offer a 24-hour emergency electrical service and we also have an electrical Preventative Maintenace plan we offer. We repair broken electrical systems we troubleshoot and repair issues

All Pro Generator Service & Repair, LLC

PO Box 801456
5.00(
3
)

All Pro Generator Service & Repair, LLC

PO Box 801456
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We Sale, service, install & repair Emergency Backup Generator Systems (residential & commercial) as well as transfer switches and all related accessories. We are a Generac authorized dealer with over 25 yrs experience. We have service deals and discounts available

"Very great!! Ashley was very professional and knowledgeable! Will definitely be calling again! Highly recommend"

Dakota L on March 2024

We Sale, service, install & repair Emergency Backup Generator Systems (residential & commercial) as well as transfer switches and all related accessories. We are a Generac authorized dealer with over 25 yrs experience. We have service deals and discounts available

"Very great!! Ashley was very professional and knowledgeable! Will definitely be calling again! Highly recommend"

Dakota L on March 2024

Ld electric

5.00(
3
)

Ld electric

5.00(
3
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in electrical services, repairs, installs, 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!

"Everything was great! Would highly recommend if you need any electrical work done."

Jason S on May 2023

We specialize in electrical services, repairs, installs, 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!

"Everything was great! Would highly recommend if you need any electrical work done."

Jason S on May 2023

Showing 1-10 of 18
Generator Install questions, answered by experts

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.

In most cases, there are no tax credits available for home generators. However, that’s a general statement that applies to federal tax credits, so you might have access to state or local tax incentives. You can check the Database of State Incentives for Renewables & Efficiency (DSIRE) for more information about your area. If you hire a reliable home generator installer, they should also know if there are any state or local perks you can use to reduce your installation costs, including tax breaks and rebates.

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.

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. 

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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The Ooltewah, TN 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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