Get matched with top generator installers in New Haven, CT
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Verified Reviews for Generator Installation pros in New Haven, CT
*The Angi rating for Generator Installation companies in New Haven, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in New Haven, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on April 25, 2025
Generator installers in New Haven
We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.
"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."
john j on January 2025
We joined Angie's List in August of 2007 and have earned their Super Service Award every year since 2009 when they started that program. HARP Home Services, LLC is here to take care of all your heating and air conditioning needs. Whether you are looking for a free quote on a new central air conditioning system or are ready to install radiant floor heating or a new boiler for those chilly winter months, we're just a phone call (or e-mail) away. Residential & Commercial.
"We had a furnace installed by Harp on July 8th 2024 after it being diagnosed by their technician as to the reason our ac system was not functioning properly. That’s when our troubles with Harp began. The installation was not done properly, we needed 3 service calls to get the ac to work properly. The installers were sloppy. We cleaned up screws and wire and parts from the old furnace for weeks. When heating season began we noticed that the humidifier installed with the furnace was not operating. We scheduled an appointment to have it repaired and they called the day of the appointment and told us they couldn’t come that day and we had to reschedule, so reluctantly we did. They finally came and repaired it. From what the technician told me it was not wired properly. On January 21st 2025( the coldest night of the year) the furnace stopped working. We called Harp to get someone to come to repair it as we had no heat in below 0º weather I was told the best they could do is to come the next day between 2 and 6 pm. I tried to explain that this was an emergency but to no avail. I called my local oil company and they were at my door within 30 minutes( which I would’ve expected from the company who sold us the furnace) the repaired it quickly and told us that one f the wires on the control panel was not attached properly. It cost me $300. I would NOT recommend Harp to anyone. They are not reliable and do not stand behind their promises of service 24/7. Stay as far away from this company as possible. We are sorry we ever started with them."
john j on January 2025
Our team of Electricians is skilled, professional, and conscientious with years of experience dealing with the unforeseeable circumstances the commercial and residential Industries present. In addition, we partner with teams of architects, engineers, contractors, manufacturers and suppliers to further, strengthen our foundation in the industry. Each new customer that we work with is welcomed with a lifelong commitment to brighten their lives along the way. We care about what we do and it shows!
"It went very well. Derick was prompted, knowledgeable, and friendly."
Felix V on August 2024
Our team of Electricians is skilled, professional, and conscientious with years of experience dealing with the unforeseeable circumstances the commercial and residential Industries present. In addition, we partner with teams of architects, engineers, contractors, manufacturers and suppliers to further, strengthen our foundation in the industry. Each new customer that we work with is welcomed with a lifelong commitment to brighten their lives along the way. We care about what we do and it shows!
"It went very well. Derick was prompted, knowledgeable, and friendly."
Felix V on August 2024
We have the experience and dedication to get the job done right! Specializing in Electrical services; 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! Call or click for your estimate today!
"Jhon exceeded my expectations. His work is excellent, he is a good guy, he is prompt and his price was good too"
jon w on November 2023
We have the experience and dedication to get the job done right! Specializing in Electrical services; 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! Call or click for your estimate today!
"Jhon exceeded my expectations. His work is excellent, he is a good guy, he is prompt and his price was good too"
jon w on November 2023
Candido Electric, LLC, is Connecticut's premiere electrical contractor. They are licensed and insured with the state with over seven years of experience. Call today for all of your electrical needs.
"Terry was fantastic! He was very friendly and did a great job replacing recessed lights for us as well as installing keypad lock. I’ll definitely be using Candido Electric for any future electrical work needed."
Mark C on May 2023
Candido Electric, LLC, is Connecticut's premiere electrical contractor. They are licensed and insured with the state with over seven years of experience. Call today for all of your electrical needs.
"Terry was fantastic! He was very friendly and did a great job replacing recessed lights for us as well as installing keypad lock. I’ll definitely be using Candido Electric for any future electrical work needed."
Mark C on May 2023
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Residential electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!
"I was having a hard time actually getting an electrician to call me back. Chris called me within an hour and set up an appointment. He came out, gave me a fair price and completed the work that day! I now have working hanging lights and my Jacuzzi is up and running! Couldn’t be happier! Highly recommend!"
Kelly R on November 2024
We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of Residential electrical services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!
"I was having a hard time actually getting an electrician to call me back. Chris called me within an hour and set up an appointment. He came out, gave me a fair price and completed the work that day! I now have working hanging lights and my Jacuzzi is up and running! Couldn’t be happier! Highly recommend!"
Kelly R on November 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! Book with us online or feel free to give us a call today!
"Very knowledgeable and extremely professional"
reginald m on May 2022
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! Book with us online or feel free to give us a call today!
"Very knowledgeable and extremely professional"
reginald m on May 2022
Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!
"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"
Samantha V on March 2025
Founded in 2007, Wa/ve Sound and Security, LLC has evolved as an industry leader in providing innovative solutions for the security, entertainment, and productivity of our customers. Our focus is to educate the customer so they can make the most informed decision on the products they are looking to purchase. We maintain a clean work environment, cleanup is important to us - we strive to leave the work site better than how we found it!
"Wes did an amazing job getting our dental practice music back up and running after a power surge took it out. His prompt attention brought the morality back up in the office while treating the patients. He was extremely communicative throughout the whole process. Thank you Wes!"
Samantha V on March 2025
It isnt easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , were ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, were the team you should call!
"Outstanding reliable service. I was very impressed with their level of professionalism and customer service. They completed the job quickly and are detailed in ensuring everything was perfect. I would definitely recommend and hire again."
Wendy B on December 2024
It isnt easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , were ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, were the team you should call!
"Outstanding reliable service. I was very impressed with their level of professionalism and customer service. They completed the job quickly and are detailed in ensuring everything was perfect. I would definitely recommend and hire again."
Wendy B on December 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
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
It isnt easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , were ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, were the team you should call!
It isnt easy finding the right company for your electrical services needs. Electricity is not just one of the most important parts of a home; it can also be one of the most dangerous if not handled by a professional electrician. At Mister Sparky® , were ready to provide the safe and reliable electrical services that you need. Our team receives some of the most thorough training in the industry. Importantly, they always adhere to the highest industry standards and obey all local codes and regulations. Whether you need a complete rewiring of your home or need a new light installed, were the team you should call!
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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