Top-rated generator install pros.

Get matched with top generator install pros in Union, NJ

There are 13 highly-rated local generator install pros.

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    Verified generator installs reviews

Find Generator install pros in Union

Avatar for Gold Medal Service

Gold Medal Service

20 Booker St
4.44(
487
)
Approved Pro

Gold Medal Service

20 Booker St
4.44(
487
)
Approved Pro
Customers say: Super punctual
179 local quotes requested
49 years of experience

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"If I could, I would give this horrible service provider a 0.0! I scheduled a plumbing appointment on a call, which was confirmed via multiple texts the day prior to the appt. Then had an employee go to the location during the 4 hour window they specified and wait for the plumber. On the day of the appt, 1 hour into the time window someone calls and says, sorry we’re not going to go because we only do residential plumbing. This was a surprise, as it was communicated to them that this was a business when I had set up the appt. So, I decided to speak with a manager. After spending over an hour of being bounced around from one dept to another, asking for a manager, they never connected me to one and their dispatcher had the audacity to say “sorry for your inconvenience, but you’ll just have to find someone else.” WOW! The hoops they make you jump through and the rudeness is not worth the hassle. I would definitely recommend you find a different plumbing pro for your project!"

Mark K on March 2024

Plumbing, HVAC, and electrical systems make your house livable. One minor issue with any of these systems can put your home at a standstill. In case you find yourself in this unfortunate situation, know that you can count on Gold Medal Service. For over 24 years, our company has been taking care of the homes of New Jersey residents through our top quality plumbing, HVAC, and electrical services. We are available 24 hours a day, 7 days a week to address even the most mind-boggling issues of your in-home equipment. From repairs, installations, and upgrades, our technicians are known for getting the job done right every time. We also provide upfront pricing with a full description of the service before commencing work to avoid any surprises down the line.

"If I could, I would give this horrible service provider a 0.0! I scheduled a plumbing appointment on a call, which was confirmed via multiple texts the day prior to the appt. Then had an employee go to the location during the 4 hour window they specified and wait for the plumber. On the day of the appt, 1 hour into the time window someone calls and says, sorry we’re not going to go because we only do residential plumbing. This was a surprise, as it was communicated to them that this was a business when I had set up the appt. So, I decided to speak with a manager. After spending over an hour of being bounced around from one dept to another, asking for a manager, they never connected me to one and their dispatcher had the audacity to say “sorry for your inconvenience, but you’ll just have to find someone else.” WOW! The hoops they make you jump through and the rudeness is not worth the hassle. I would definitely recommend you find a different plumbing pro for your project!"

Mark K on March 2024


Avatar for MDL Electric LLC Cooling & Heating

MDL Electric LLC Cooling & Heating

4 Harrison Ave
4.61(
128
)
Approved Pro

MDL Electric LLC Cooling & Heating

4 Harrison Ave
4.61(
128
)
Approved Pro
Customers say: Quality work
229 local quotes requested
18 years of experience

We provide our diverse Northern NJ customers a prompt response, consistently top quality electrical work designed to meet and exceed local and national industry standards for safety and efficiency, regardless of the size or scale of the electrical work. MDL Electric LLC, a family owned electrical contracting business established in 2007. The owner, Miguel Deleon started working in the electrical industry since 1993; he has over 20 years of electrical experience in all aspects of electrical work. We are committed to providing exceptional service, expertise to every project and get the job done and guarantees customer satisfaction. All our technicians are trained and certified; backgrounds checked and attend continuing education seminars to be up to date on electrical codes. For more than 20 years, Miguel De Leon has been providing solutions oriented to each customer may it be Residential, Commercial, or Industrial. Our mission is to create successful and lasting partnerships by exceeding expectations and gaining trust through exceptional performance. Let MDL Electric LLC bring power to your next project. We are a fully licensed Electrical and HVAC Business. Call us and experience true family quality.

"Miguel contacted me almost instantly. Issac arrived right on time. Issac was professional, courteous, and explained everything every step of the way. I wasn’t big on trying Angi, and was very skeptical but I was wow’s by MDL. Such a great experience. I definitely will be calling them if I ever need electrical services again and I’ll use Angi again too for other projects. Such a great experience."

Michael D on December 2023

We provide our diverse Northern NJ customers a prompt response, consistently top quality electrical work designed to meet and exceed local and national industry standards for safety and efficiency, regardless of the size or scale of the electrical work. MDL Electric LLC, a family owned electrical contracting business established in 2007. The owner, Miguel Deleon started working in the electrical industry since 1993; he has over 20 years of electrical experience in all aspects of electrical work. We are committed to providing exceptional service, expertise to every project and get the job done and guarantees customer satisfaction. All our technicians are trained and certified; backgrounds checked and attend continuing education seminars to be up to date on electrical codes. For more than 20 years, Miguel De Leon has been providing solutions oriented to each customer may it be Residential, Commercial, or Industrial. Our mission is to create successful and lasting partnerships by exceeding expectations and gaining trust through exceptional performance. Let MDL Electric LLC bring power to your next project. We are a fully licensed Electrical and HVAC Business. Call us and experience true family quality.

"Miguel contacted me almost instantly. Issac arrived right on time. Issac was professional, courteous, and explained everything every step of the way. I wasn’t big on trying Angi, and was very skeptical but I was wow’s by MDL. Such a great experience. I definitely will be calling them if I ever need electrical services again and I’ll use Angi again too for other projects. Such a great experience."

Michael D on December 2023


Avatar for Pipe Works Services Inc

Pipe Works Services Inc

33 River Rd
4.43(
174
)
Approved Pro

Pipe Works Services Inc

33 River Rd
4.43(
174
)
Approved Pro
Super Service Award
Customers say: Quick response
329 local quotes requested
25 years of experience

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Excellent service!"

Mayan B on September 2025

Since 2000, we have built our reputation as one of Northern New Jersey’s most trusted experts for home comfort and efficiency. Improving the overall comfort and energy efficiency of your home is our #1 priority, and we believe we are the best. What sets us apart from other home energy contractors is that our team undergoes continuous extensive training that is unmatched by anyone in the industry. You can rest assured that we will perform the job right the first time around! With over 75 years of combined service experience, Pipe Works Services Inc. is a New Jersey Plumbing, Heating, Air Conditioning, Water Conditioning, Insulation, Electrical, Installation, Drain Cleaning, Maintenance, Replacement company located in Morris County. Pipe Works will send you only the best technician or specialist to fix, replace or install your needs.

"Excellent service!"

Mayan B on September 2025


Avatar for First Class Electric

First Class Electric

619 Raritan Rd.
4.79(
103
)
Approved Pro

First Class Electric

619 Raritan Rd.
4.79(
103
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
49 local quotes requested

Established in 2007, First Class Electric is here to help you with all electrical needs for your home and business in Cranford, NJ. Our licensed, insured, and bonded electricians will make your home and business more comfortable, safer, and brighter. About 70% of our business comes from repeat customers, demonstrating the high level of quality and service we provide. All of our work is 100% satisfaction guaranteed and comes with a lifetime warranty on labor which sets us apart from other electrical contractors. To schedule an appointment, give us a call at (908) 325-1777.

"second job- ceiling fans installed in bedroom"

Mark K on May 2021

Established in 2007, First Class Electric is here to help you with all electrical needs for your home and business in Cranford, NJ. Our licensed, insured, and bonded electricians will make your home and business more comfortable, safer, and brighter. About 70% of our business comes from repeat customers, demonstrating the high level of quality and service we provide. All of our work is 100% satisfaction guaranteed and comes with a lifetime warranty on labor which sets us apart from other electrical contractors. To schedule an appointment, give us a call at (908) 325-1777.

"second job- ceiling fans installed in bedroom"

Mark K on May 2021


Avatar for SteerElectric

SteerElectric

148 Dodd St
4.64(
33
)
Approved Pro

SteerElectric

148 Dodd St
4.64(
33
)
Approved Pro
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
53 local quotes requested

SteerElectric is a family-owned small business that offers all aspects of electrical contracting to any type customer. No job is too big or too small. Just give us a call! We know your home is one of your most valuable investments and we're dedicated to bringing our customers’ homes back to their former glory. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. Please call us directly or click for a free estimate today!

"I’m very satisfied with the work that was done. The job was done professionally and in a timely manner which allowed my family to enjoy the rest of our day. Odane installed an EV charger for my Tesla and he delivered on exactly what he promised. Before he left he asked me to confirm everything worked as requested and I saw the car was charging exactly at the speed that it was supposed to. Overall I’m very satisfied with his work and I know others will be too. Thank you for helping me find him through Angi’s."

Igor K on September 2024

SteerElectric is a family-owned small business that offers all aspects of electrical contracting to any type customer. No job is too big or too small. Just give us a call! We know your home is one of your most valuable investments and we're dedicated to bringing our customers’ homes back to their former glory. When you hire us, you're hiring a team of professionals who are trained and skilled to deliver lasting value to your home. Please call us directly or click for a free estimate today!

"I’m very satisfied with the work that was done. The job was done professionally and in a timely manner which allowed my family to enjoy the rest of our day. Odane installed an EV charger for my Tesla and he delivered on exactly what he promised. Before he left he asked me to confirm everything worked as requested and I saw the car was charging exactly at the speed that it was supposed to. Overall I’m very satisfied with his work and I know others will be too. Thank you for helping me find him through Angi’s."

Igor K on September 2024


Avatar for Green Sun Energy Services, LLC

Green Sun Energy Services, LLC

79 McCutcheon Ct.
4.96(
69
)
Approved Pro

Green Sun Energy Services, LLC

79 McCutcheon Ct.
4.96(
69
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
64 local quotes requested

Founded in 2010, Green Sun Energy Services has helped thousands of New Jersey homeowners become more energy independent. We are a leading provider of solar panel installation programs, EV charging stations, GAF Timberline roofing systems, Generac generator installations and maintenance, as well as seasonal services like soft washing and professional Christmas light installation. Headquartered in Middletown, NJ, our local team proudly serves clients throughout Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties.

"It’s been just shy of year since we had Green Sun Energy Services design and install a solar array and a standby generator at our home. I’d been thinking about “going solar” for some time. I spoke with one or two other solar-install companies before speaking with Green Sun. Glen, Green Sun head-honcho, came to my home and discussed the technical and economic aspects of the solar array. In addition to being very personable, I found Glen to be professional and exceedingly knowledgeable. I liked that fact that rather speaking with a sales rep, I was speaking with an owner of the company. And I took comfort in the fact that Green Sun is local (at least to me) and has been around for a number of years, has done many solar installs, and has several regular crews of installers. After surveying the attic and taking some measurements of the roof, Glen worked up an estimate for a solar array and standby generator. The estimate detailed what the system would look like, what it could do, and what it would cost. A further and very important consideration for me was what the solar array would look like. Having just completed a significant renovation to the exterior of our home, including a nice new roof, I didn’t want to compromise the look we achieved. In fact, I didn’t want to see the panels at all, at least from the front or sides of my home. Glen assured me that I wouldn’t. In fact, unlike some other solar-install companies, it turns out that Green Sun always sets the panels back at least four feet or so from the side edges of the roof. They “get” it. Since the payout looked good and I was very comfortable with Green Sun and Glen, we decided to proceed. Since part of my project was a standby generator, the electrical work was a bit more involved. Glen’s electrical contractor was amazing. He was easy to work with and really sweated the details. He showed up when we he said he would, and did all the prep work he could in anticipation of the actual solar-panel install and generator delivery. He obviously took great pride in his work, making sure everything was neat and expertly done. No less impressive were the solar-panel installers. Per the layout, they moved a roof vent and took the time necessary to line-up everything in accordance with Greg’s plan. The install proceeded without a hitch and looked great. Inspecting the attic, I couldn’t find a single fastener penetrating the roof deck; every screw/nail was sunk into the rafters. As promised, no part of the array is visible from the front or sides of the house. In fact, in my situation, the solar panels aren’t visible until I stand quite a distance away from the house in the backyard. Glen’s plumbing contractor showed up to plumb the stand-by generator as scheduled. Like the electrical, everything was done professionally and very neatly. In fact, when the inspector came by to perform his inspection, he commented on how neatly the unit was plumbed. As noted at the outset, my system has been operating for about a year. Everything started up without issue. My monthly electric bill is just under $3.00 per month; that’s not for usage –it’s a minimum that must be paid─ I have actually been banking electricity every month, for which I will receive a check/credit from my electric company at some point. I have cashed in the solar credits (SRECs) that I receive every few months. Between the SRECs, my $3-a-month electric bill, and the 30% federal tax credit, I’m on track for a 6-year or so payout. Just a couple of weeks ago, during the April Nor’easters, the power in my neighborhood went out for 4-5 hours. But not at my house; the generator kicked on in a few seconds. My only continuing awareness of the outage was how dark things were outside and the audible, but inoffensive drone of the generator. Bottom line, I couldn’t be more satisfied. The few questions I’ve had have been answered promptly and cheerfully by Glen or his business partner Chris. If you are thinking about “going solar,” or even just getting a standby generator, you really ought to give Glen at Green Sun a call. By the way, I understand that the federal tax credit is being phased out over the next 4-5 years, so if you are interested, you probably should move on it. I realize that this might sound like an “ad,” not a review, but it isn’t. I have no connection with Glen or Green Sun other than being an extremely satisfied customer; this review is simply my way of saying “thank you” to Green Sun."

Wayne B on May 2018

Founded in 2010, Green Sun Energy Services has helped thousands of New Jersey homeowners become more energy independent. We are a leading provider of solar panel installation programs, EV charging stations, GAF Timberline roofing systems, Generac generator installations and maintenance, as well as seasonal services like soft washing and professional Christmas light installation. Headquartered in Middletown, NJ, our local team proudly serves clients throughout Monmouth, Ocean, Middlesex, Somerset, Mercer, and Union counties.

"It’s been just shy of year since we had Green Sun Energy Services design and install a solar array and a standby generator at our home. I’d been thinking about “going solar” for some time. I spoke with one or two other solar-install companies before speaking with Green Sun. Glen, Green Sun head-honcho, came to my home and discussed the technical and economic aspects of the solar array. In addition to being very personable, I found Glen to be professional and exceedingly knowledgeable. I liked that fact that rather speaking with a sales rep, I was speaking with an owner of the company. And I took comfort in the fact that Green Sun is local (at least to me) and has been around for a number of years, has done many solar installs, and has several regular crews of installers. After surveying the attic and taking some measurements of the roof, Glen worked up an estimate for a solar array and standby generator. The estimate detailed what the system would look like, what it could do, and what it would cost. A further and very important consideration for me was what the solar array would look like. Having just completed a significant renovation to the exterior of our home, including a nice new roof, I didn’t want to compromise the look we achieved. In fact, I didn’t want to see the panels at all, at least from the front or sides of my home. Glen assured me that I wouldn’t. In fact, unlike some other solar-install companies, it turns out that Green Sun always sets the panels back at least four feet or so from the side edges of the roof. They “get” it. Since the payout looked good and I was very comfortable with Green Sun and Glen, we decided to proceed. Since part of my project was a standby generator, the electrical work was a bit more involved. Glen’s electrical contractor was amazing. He was easy to work with and really sweated the details. He showed up when we he said he would, and did all the prep work he could in anticipation of the actual solar-panel install and generator delivery. He obviously took great pride in his work, making sure everything was neat and expertly done. No less impressive were the solar-panel installers. Per the layout, they moved a roof vent and took the time necessary to line-up everything in accordance with Greg’s plan. The install proceeded without a hitch and looked great. Inspecting the attic, I couldn’t find a single fastener penetrating the roof deck; every screw/nail was sunk into the rafters. As promised, no part of the array is visible from the front or sides of the house. In fact, in my situation, the solar panels aren’t visible until I stand quite a distance away from the house in the backyard. Glen’s plumbing contractor showed up to plumb the stand-by generator as scheduled. Like the electrical, everything was done professionally and very neatly. In fact, when the inspector came by to perform his inspection, he commented on how neatly the unit was plumbed. As noted at the outset, my system has been operating for about a year. Everything started up without issue. My monthly electric bill is just under $3.00 per month; that’s not for usage –it’s a minimum that must be paid─ I have actually been banking electricity every month, for which I will receive a check/credit from my electric company at some point. I have cashed in the solar credits (SRECs) that I receive every few months. Between the SRECs, my $3-a-month electric bill, and the 30% federal tax credit, I’m on track for a 6-year or so payout. Just a couple of weeks ago, during the April Nor’easters, the power in my neighborhood went out for 4-5 hours. But not at my house; the generator kicked on in a few seconds. My only continuing awareness of the outage was how dark things were outside and the audible, but inoffensive drone of the generator. Bottom line, I couldn’t be more satisfied. The few questions I’ve had have been answered promptly and cheerfully by Glen or his business partner Chris. If you are thinking about “going solar,” or even just getting a standby generator, you really ought to give Glen at Green Sun a call. By the way, I understand that the federal tax credit is being phased out over the next 4-5 years, so if you are interested, you probably should move on it. I realize that this might sound like an “ad,” not a review, but it isn’t. I have no connection with Glen or Green Sun other than being an extremely satisfied customer; this review is simply my way of saying “thank you” to Green Sun."

Wayne B on May 2018


Avatar for Arctic Air Conditioning

Arctic Air Conditioning

1 Pleasant Valley Rd
4.84(
828
)
Approved Pro

Arctic Air Conditioning

1 Pleasant Valley Rd
4.84(
828
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
750 local quotes requested

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Great!! Would hire again"

Erik A on May 2025

Arctic Air Conditioning is a family run business that has served New Jersey since 1977. We specialize in residential and commercial Air Conditioning, Heating, Humidification, and indoor air quality. Our other services include Plumbing, Electrical, and Garage Doors. Our philosophy is to provide top of the line equipment with the best installation and service available in the industry. We are an award winning Lennox Dealer and Home Depot Service Provider.

"Great!! Would hire again"

Erik A on May 2025


Avatar for Best Dressed Electric

Best Dressed Electric

16 Hilltop Rd
5.00(
31
)
Approved Pro

Best Dressed Electric

16 Hilltop Rd
5.00(
31
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
109 local quotes requested

The replacement of any receptacle, switch, or lighting fixture, or part thereof. Receptacles in locations where ground-fault circuit interrupter protection, damp/wet, tamper-resistant are required. Repairs to any electrically operated equipment such as doorbells, communication systems, and any motor operated device. The installation of burglar alarms, security systems, or doorbells one and two family dwellings. Smoke and co detectors. Etc…,

"Jeremy was quick to respond, arrived right on time, and did a phenomenal job faster than most others would. He was very neat and professional and I highly recommend his services to anyone looking to have an electrical project completed."

Michael D on February 2025

The replacement of any receptacle, switch, or lighting fixture, or part thereof. Receptacles in locations where ground-fault circuit interrupter protection, damp/wet, tamper-resistant are required. Repairs to any electrically operated equipment such as doorbells, communication systems, and any motor operated device. The installation of burglar alarms, security systems, or doorbells one and two family dwellings. Smoke and co detectors. Etc…,

"Jeremy was quick to respond, arrived right on time, and did a phenomenal job faster than most others would. He was very neat and professional and I highly recommend his services to anyone looking to have an electrical project completed."

Michael D on February 2025


Avatar for Nova Building & Design, LLC

Nova Building & Design, LLC

207 Elizabeth St
4.67(
3
)
Approved Pro

Nova Building & Design, LLC

207 Elizabeth St
4.67(
3
)
Approved Pro
25 local quotes requested
10 years of experience

Please feel free to call or text 732-328-0507 for any estimate questions Nova Building and Design, 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!

"Jeff at Nova was great to work with. He listened to what I wanted, provided feedback, and together we agreed on a plan. His quote was clear and complete and while it was not the cheapest, it was reasonable for the work. He proactively provided his insurance coverage which I found very professional. While we did have a few hiccups (equipment delay) during the project, Jeff kept me informed and was present on the job site. He and his team completed the work in a reasonable time and left the site clean and fresh. My wife and I are both very happy with outcome."

Michael W on September 2025

Please feel free to call or text 732-328-0507 for any estimate questions Nova Building and Design, 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!

"Jeff at Nova was great to work with. He listened to what I wanted, provided feedback, and together we agreed on a plan. His quote was clear and complete and while it was not the cheapest, it was reasonable for the work. He proactively provided his insurance coverage which I found very professional. While we did have a few hiccups (equipment delay) during the project, Jeff kept me informed and was present on the job site. He and his team completed the work in a reasonable time and left the site clean and fresh. My wife and I are both very happy with outcome."

Michael W on September 2025


Concept Electric, LLC

115 Brill St Apt 2
5.00(
1
)
Approved Pro

Concept Electric, LLC

115 Brill St Apt 2
5.00(
1
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Alex did an amazing job in replacing electrical panel. He was prompt, on time and finished the replacement quickly. Explained the process and was informative when asked questions regarding the panel and the rest of the existing set up. Price was more than fair compared to other estimates received, Will be using them for some other electrical work needed. I recommend Concept Electrical for all your electrical needs because of the fair prices compared to others and type of service they provide."

Noel C on March 2023

We offer over 30 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Alex did an amazing job in replacing electrical panel. He was prompt, on time and finished the replacement quickly. Explained the process and was informative when asked questions regarding the panel and the rest of the existing set up. Price was more than fair compared to other estimates received, Will be using them for some other electrical work needed. I recommend Concept Electrical for all your electrical needs because of the fair prices compared to others and type of service they provide."

Noel C on March 2023

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Generator Install questions, answered by experts

Many services include assembling the unit and securing it in the window. Confirm with your provider.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

No, you shouldn’t use an extension cord to plug a generator directly into your home without using a transfer switch. That’s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of electrical fire or electrical shock to you or any workers repairing lines on your local electrical grid.

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

The Union, NJ homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.