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Generator installers in Walnut Grove
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.
"Fantastic!"
Mike P on April 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.
"Fantastic!"
Mike P on April 2025
At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company
"Thumbs up for the construction at my residence, a three story elevator shaft"
Diana D on October 2024
At Casteel Heating, Cooling, Plumbing and Electrical, we provide world-class service to our customers, just as we have since 1987. Founded by Jan and Bob Casteel, our company was built on honesty and customer-focused care. To this day, we offer our Amazing Care Guarantee: We’ll take amazing care of you or we’ll refund your service call fee. Our expert team of plumbers, electricians, HVAC technicians, and system design managers performs top-quality repairs and installations while ensuring you are completely satisfied with your entire customer service. Because we offer so many services under one roof, you’ll save time and money by making one phone call to Casteel. Formerly: Knight Air Conditioning and Heating Company
"Thumbs up for the construction at my residence, a three story elevator shaft"
Diana D on October 2024
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!
"It went Great!"
Clarice L on March 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!
"It went Great!"
Clarice L on March 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
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
True Light Electric, LLC is proud to serve Georgia's electrical service needs! Owner and operator Drew has over 7 years of experience in the industry. They're excited to take on new clients immediately. Call today for a free estimate on your next project!
"Drew Skinner is a DEPENDABLE HARD WORKING PERSON His word and his handshake actually means something Great experience"
Slim M on May 2024
True Light Electric, LLC is proud to serve Georgia's electrical service needs! Owner and operator Drew has over 7 years of experience in the industry. They're excited to take on new clients immediately. Call today for a free estimate on your next project!
"Drew Skinner is a DEPENDABLE HARD WORKING PERSON His word and his handshake actually means something Great experience"
Slim M on May 2024
Sullivan Electric Services Co, LLC provides full service residential and commercial electrical services for the entire Atlanta metro area. With more than 30 years of experience in the electrical field, we will provide prompt and technically superior attention to all electrical issues. Our number one priority is customer satisfactiondoing it right the first time, according to your expectationsin order to build a long-term business relationship. At Sullivan Electric, we light the world the most excellent way. As a company that has been serving the entire Atlanta metro area for so many years, our longevity is a testament to our dedication to quality craftsmanship, customer service, and low prices. We have many happy customers that attest to our great customer service, pricing and quality of work.
"I found Mr Sullivan on HomeAdvisor gave him a call which he picked up right away which was a plus, but than he gave me an estimate over the phone without coming down to look at it made it seem like the minimum he would charge was $350 for instal of four outlets, troubleshoot and repair outlets in kitchen, and repair backyard light. The next day he arrived a little late installed four outlets as discussed, but turned out nothing was wrong with the outlets in the kitchen he said the " GFCI where doing what they were supposed to do", and the back yard light was fixed by replacing the old sensor that rain water damaged with a new one, but replaced it with a black sensor rather than a matching white, which I was fine with in the end, unfortunately in the end he didn't recalculate the fact that he really didn't had to do anything with the outlets in the kitchen yet he was still trying to charge me $25 more for the unmatching backyard sensor. I am not an electrician and he and his employee did get the job done, but was just dissapointed that I believe he did not charge a fair price for work he done seemed too expensive to me usually an instal of lights or switches are around $50 a pop and the sensor $25 itself just didn't add up to me other than that they got the mission accomplished."
EDUARDO L on August 2015
Sullivan Electric Services Co, LLC provides full service residential and commercial electrical services for the entire Atlanta metro area. With more than 30 years of experience in the electrical field, we will provide prompt and technically superior attention to all electrical issues. Our number one priority is customer satisfactiondoing it right the first time, according to your expectationsin order to build a long-term business relationship. At Sullivan Electric, we light the world the most excellent way. As a company that has been serving the entire Atlanta metro area for so many years, our longevity is a testament to our dedication to quality craftsmanship, customer service, and low prices. We have many happy customers that attest to our great customer service, pricing and quality of work.
"I found Mr Sullivan on HomeAdvisor gave him a call which he picked up right away which was a plus, but than he gave me an estimate over the phone without coming down to look at it made it seem like the minimum he would charge was $350 for instal of four outlets, troubleshoot and repair outlets in kitchen, and repair backyard light. The next day he arrived a little late installed four outlets as discussed, but turned out nothing was wrong with the outlets in the kitchen he said the " GFCI where doing what they were supposed to do", and the back yard light was fixed by replacing the old sensor that rain water damaged with a new one, but replaced it with a black sensor rather than a matching white, which I was fine with in the end, unfortunately in the end he didn't recalculate the fact that he really didn't had to do anything with the outlets in the kitchen yet he was still trying to charge me $25 more for the unmatching backyard sensor. I am not an electrician and he and his employee did get the job done, but was just dissapointed that I believe he did not charge a fair price for work he done seemed too expensive to me usually an instal of lights or switches are around $50 a pop and the sensor $25 itself just didn't add up to me other than that they got the mission accomplished."
EDUARDO L on August 2015
TC Shock Electric is much more than your run-of-the-mill electrical company. At TC Shock Electric, we are a personalized service who pride ourselves on reliability, communication, integrity and quality work. We are strong believers in giving our absolute best in all the work we do. Our goal is to ensure that you have a shocking experience in the best way! Call us for a free estimate and to get a professional out to your home today!
"Very professional from intro to cleanup"
Sherman A on February 2023
TC Shock Electric is much more than your run-of-the-mill electrical company. At TC Shock Electric, we are a personalized service who pride ourselves on reliability, communication, integrity and quality work. We are strong believers in giving our absolute best in all the work we do. Our goal is to ensure that you have a shocking experience in the best way! Call us for a free estimate and to get a professional out to your home today!
"Very professional from intro to cleanup"
Sherman A on February 2023
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
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.
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.
Premier Lightning Protection is a family owned and operated fourth generation company. We take pride in designing and installing lightning protection systems that will not only protect your home from the devastation of a lightning strike but also give you peace of mind during the fierce lightning storms we experience. Lightning is a catastrophic phenomenon, contact us to see how you can protect your home from it. WE DO NOT DO ELECTRICAL WORK.
"Great work from Patrick. Very professional and finish on timely manner."
Dheeraj J on September 2021
Premier Lightning Protection is a family owned and operated fourth generation company. We take pride in designing and installing lightning protection systems that will not only protect your home from the devastation of a lightning strike but also give you peace of mind during the fierce lightning storms we experience. Lightning is a catastrophic phenomenon, contact us to see how you can protect your home from it. WE DO NOT DO ELECTRICAL WORK.
"Great work from Patrick. Very professional and finish on timely manner."
Dheeraj J on September 2021
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
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