*The Angi rating for Generator Install 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 Install needs.
*The HomeAdvisor rating for Generator Install 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 Install needs.
Last update on August 06, 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
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 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
St. Lawrence Electric is dedicated to providing its customers the highest quality electrical work paired with exceptional customer service and great attention to detail.
"Kevin was great. I called him with a few questions about the process and he was able to answer them quickly and accurately. He was also able to schedule me and get the job done quickly. I would highly recommend St. Lawrence Electric. "
Alex C on May 2025
St. Lawrence Electric is dedicated to providing its customers the highest quality electrical work paired with exceptional customer service and great attention to detail.
"Kevin was great. I called him with a few questions about the process and he was able to answer them quickly and accurately. He was also able to schedule me and get the job done quickly. I would highly recommend St. Lawrence Electric. "
Alex C on May 2025
Corporate Electric SRBA, LLC proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!
Corporate Electric SRBA, LLC proudly serves its customers with pride, integrity, and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are locally owned and operated. Give us a call today!
Elevate Electric LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
"Efficient and thorough. Excellent job at a good price. Kyle took the time to go through every step thoroughly and explain what needed to be done, and did it."
Matthew S on July 2025
Elevate Electric LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!
"Efficient and thorough. Excellent job at a good price. Kyle took the time to go through every step thoroughly and explain what needed to be done, and did it."
Matthew S on July 2025
Mikell Electric is a smaller company located in Bethel, CT. The young owner, Spencer, prides himself in providing quality electrical work for an affordable price. We cover anything commercial or residential. From service and emergency calls to wiring your dream home or a new restaurant, we have you covered. We also are a Generac Generator dealer for any of your backup power needs. Call or text our office at 203-220-8867 or email us at [email protected] to schedule a visit or a free estimate!
"Friday April 25 - company reached out after appointment starting time that they were no longer available and needed to reschedule Wednesday April 30 - company late for appointment Friday May 9th - company rescheduled installation date Wednesday May 14th - company rescheduled installation date again Saturday May 16th - company reached out at appointment starting time to reschedule Saturday May 16th - after we voiced our frustration with the above, company indicated with 40 minutes advance notice that they may not be able to make appt Saturday May 16th - company no-showed the time they suggested. We are unable to get in touch with company. Despite the company having read receipt functionality turned on, we did not receive a response after they read our message asking if anyone was coming so we could plan our Saturday accordingly "
Spencer F on May 2025
Mikell Electric is a smaller company located in Bethel, CT. The young owner, Spencer, prides himself in providing quality electrical work for an affordable price. We cover anything commercial or residential. From service and emergency calls to wiring your dream home or a new restaurant, we have you covered. We also are a Generac Generator dealer for any of your backup power needs. Call or text our office at 203-220-8867 or email us at [email protected] to schedule a visit or a free estimate!
"Friday April 25 - company reached out after appointment starting time that they were no longer available and needed to reschedule Wednesday April 30 - company late for appointment Friday May 9th - company rescheduled installation date Wednesday May 14th - company rescheduled installation date again Saturday May 16th - company reached out at appointment starting time to reschedule Saturday May 16th - after we voiced our frustration with the above, company indicated with 40 minutes advance notice that they may not be able to make appt Saturday May 16th - company no-showed the time they suggested. We are unable to get in touch with company. Despite the company having read receipt functionality turned on, we did not receive a response after they read our message asking if anyone was coming so we could plan our Saturday accordingly "
Spencer F on May 2025
New Home Contractor with the staff and Knowledge to build your home on time and on budget. Licensed and Insured since 2015 with over 20 years experience in the new construction business. Let us work with you to build the home of your dreams!!
"Bob and his crew are phenomenal. They are very professional and attentive to detail. All in all just a pleasure to work with. Couldn’t be happier with this project."
Jeremy M on May 2023
New Home Contractor with the staff and Knowledge to build your home on time and on budget. Licensed and Insured since 2015 with over 20 years experience in the new construction business. Let us work with you to build the home of your dreams!!
"Bob and his crew are phenomenal. They are very professional and attentive to detail. All in all just a pleasure to work with. Couldn’t be happier with this project."
Jeremy M on May 2023
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.
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 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