Top-rated generator installers.

Get matched with top generator installers in North Grafton, MA

There are 9 highly-rated local generator installers.

Generator installers in North Grafton

Avatar for Cotti-Johnson Heating-Cooling-Electrical
Cotti-Johnson Heating-Cooling-Electrical
30 Waverly St
4.68(
154
)
Approved Pro
Cotti-Johnson Heating-Cooling-Electrical
30 Waverly St
4.68(
154
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
490 local quotes requested

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"The electrician, Mr. Jason Thompson, did an excellent job."

Armen S on April 2025

Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.

"The electrician, Mr. Jason Thompson, did an excellent job."

Armen S on April 2025


Avatar for VMA Electric Inc
VMA Electric Inc
81 Maple St
4.83(
437
)
Approved Pro
VMA Electric Inc
81 Maple St
4.83(
437
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
116 local quotes requested

Medium size Electrical Company based out of Metrowest Area. Currently have 9 licensed employees. Always free estimates. All pricing is based on specific work.

"Solid work. Problem solved."

Thabiti B on April 2025

Medium size Electrical Company based out of Metrowest Area. Currently have 9 licensed employees. Always free estimates. All pricing is based on specific work.

"Solid work. Problem solved."

Thabiti B on April 2025


Avatar for Heritage Home Service
Heritage Home Service
109 Washington St
4.29(
21
)
Approved Pro
Heritage Home Service
109 Washington St
4.29(
21
)
Approved Pro
Customers say: Quality work
153 local quotes requested
39 years of experience

Heritage Home Service is proud to serve residents from Massachusetts. We are the area’s premier home services provider and for 35+ years, we’ve brought the Heritage touch to homes throughout the state.

"I was told that the fee to simply come into my house to assess my furnace (that was not working) would be $260 on a Wednesday afternoon... and I was told this fee would not be absorbed into the work if I chose to have it done. If this company charges such an exorbitant assessment fee, I could only believe they would inflate other fees as well. I hired another local company for half that fee to assess then repair my furnace. Shame on Heritage Home Service."

Jeffrey D on December 2024

Heritage Home Service is proud to serve residents from Massachusetts. We are the area’s premier home services provider and for 35+ years, we’ve brought the Heritage touch to homes throughout the state.

"I was told that the fee to simply come into my house to assess my furnace (that was not working) would be $260 on a Wednesday afternoon... and I was told this fee would not be absorbed into the work if I chose to have it done. If this company charges such an exorbitant assessment fee, I could only believe they would inflate other fees as well. I hired another local company for half that fee to assess then repair my furnace. Shame on Heritage Home Service."

Jeffrey D on December 2024


Avatar for Rodenhiser Home Services
Rodenhiser Home Services
325 Hopping Brook Rd
4.39(
506
)
Approved Pro
Rodenhiser Home Services
325 Hopping Brook Rd
4.39(
506
)
Approved Pro
Customers say: Super punctual
344 local quotes requested
97 years of experience

When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.

"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."

stephen m on August 2024

When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.

"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."

stephen m on August 2024


Avatar for Wired Electrical Contractors, Inc.
Wired Electrical Contractors, Inc.
277 MAIN ST
4.91(
196
)
Approved Pro
Wired Electrical Contractors, Inc.
277 MAIN ST
4.91(
196
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
41 local quotes requested

At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.

"The electrician was prompt and courteous. Unfortunately, some of the things we wanted done weren't as simple as we had hoped, so they were quite expensive. In the end, we just had a broken floodlight fixture replaced. Good experience overall."

James Z on October 2020

At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.

"The electrician was prompt and courteous. Unfortunately, some of the things we wanted done weren't as simple as we had hoped, so they were quite expensive. In the end, we just had a broken floodlight fixture replaced. Good experience overall."

James Z on October 2020


Avatar for Palazis electrical
Palazis electrical
5.00(
3
)
Approved Pro
Palazis electrical
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 local quotes requested

Providing experienced and quality electrical work. I love what I do, and strive to complete projects surpassing any customers expectations. I I have made many many people happy with the Electrical services I provide. Nothing makes me happier than building a great customer relationship.

"Great! He was professional and came on time when I needed him, helped me during an emergency when my outlets burnt out around my sandwich unit."

Antony g on August 2022

Providing experienced and quality electrical work. I love what I do, and strive to complete projects surpassing any customers expectations. I I have made many many people happy with the Electrical services I provide. Nothing makes me happier than building a great customer relationship.

"Great! He was professional and came on time when I needed him, helped me during an emergency when my outlets burnt out around my sandwich unit."

Antony g on August 2022


Avatar for 4th Generation Electric, Inc.
4th Generation Electric, Inc.
375 Harvard Street
5.00(
5
)
Approved Pro
4th Generation Electric, Inc.
375 Harvard Street
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
52 local quotes requested

At 4th Generation Electric, we proudly uphold a legacy of excellence in electrical services that spans four generations. For 13 years, we've been delivering top-tier residential electrical solutions. Our mission is to provide comprehensive and cutting-edge design, installation, and upgrades. As a certified Generac dealer, we specialize in backup power solutions and EV charger installations. Our team, with unmatched expertise, is dedicated to analyzing, troubleshooting, and solving all your electrical needs. Trust 4th Generation Electric to deliver innovative solutions for the modern electrical world. Your satisfaction and safety are our top priorities.

"With the latest job John and his team completed for us, I am now able to say that for the better part of two decades, the electrical work needs of four generations of my family have been completed by 4th Generation Electric. As John and I were catching up before the install of our transfer switch and generator hook up, he recalled when we first met almost 20 years ago. From that time forward, he and his teams have completed work for my family that spanned from outlet installation and replacement, wiring our full new build construction home, inclusive of aiding with the installation of the power line from the street (which was 700 feet away from the house), outside patio electrical work for an elaborate tiered landscape, generator hook up requirements, among other things. Just as our electrical needs grew over time, and John and 4th Generation Electric have as well, the same level of attention to detail, focus on customer satisfaction, and not only the desire to strive for perfection but the expectation to do so, has been the standard that he knows not only his customers expect but that he expects for himself and his teams. It’s easy to write a review like this when it writes itself. If you have any sort of electrical work needs, big or small, you’d be doing yourself a disservice not asking John for a quote."

Joe F on September 2024

At 4th Generation Electric, we proudly uphold a legacy of excellence in electrical services that spans four generations. For 13 years, we've been delivering top-tier residential electrical solutions. Our mission is to provide comprehensive and cutting-edge design, installation, and upgrades. As a certified Generac dealer, we specialize in backup power solutions and EV charger installations. Our team, with unmatched expertise, is dedicated to analyzing, troubleshooting, and solving all your electrical needs. Trust 4th Generation Electric to deliver innovative solutions for the modern electrical world. Your satisfaction and safety are our top priorities.

"With the latest job John and his team completed for us, I am now able to say that for the better part of two decades, the electrical work needs of four generations of my family have been completed by 4th Generation Electric. As John and I were catching up before the install of our transfer switch and generator hook up, he recalled when we first met almost 20 years ago. From that time forward, he and his teams have completed work for my family that spanned from outlet installation and replacement, wiring our full new build construction home, inclusive of aiding with the installation of the power line from the street (which was 700 feet away from the house), outside patio electrical work for an elaborate tiered landscape, generator hook up requirements, among other things. Just as our electrical needs grew over time, and John and 4th Generation Electric have as well, the same level of attention to detail, focus on customer satisfaction, and not only the desire to strive for perfection but the expectation to do so, has been the standard that he knows not only his customers expect but that he expects for himself and his teams. It’s easy to write a review like this when it writes itself. If you have any sort of electrical work needs, big or small, you’d be doing yourself a disservice not asking John for a quote."

Joe F on September 2024


Avatar for Digital City Technology, Inc.
Digital City Technology, Inc.
68 Mountain Gate Road
5.00(
5
)
Approved Pro
Digital City Technology, Inc.
68 Mountain Gate Road
5.00(
5
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020

Digital City Technology, Inc. (Digital City) is based in Ashland, MA, supporting greater Boston and New England since 2008. We are a Telecommunications, Network, Low Voltage and Fiber Optic professional service provider. Digital City installs VOIP Phone systems, LAN/WAN, IP Surveillance and Audio/Visual Systems. We specialize in Phone/Internet cutovers, Data Center installations, Network and System design, CAT 5 & 6 and Fiber Optic cabling, Structured Cabling and Wireless Internet implementation. Digital City has participated in Technology Roll-outs for Fortune 500 companies and performed Technology, Network and Wi-Fi deployments, VOIP installs etc. Our main goal is to provide cost-justifiable, top quality IT services designed to meet business, customer and user demands.

"Low voltage work was clean and labeled!"

Shane H on February 2020


Avatar for EvanTechs
EvanTechs
827 Massachusetts
5.00(
13
)
Approved Pro
EvanTechs
827 Massachusetts
5.00(
13
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 years of experience

For over 10 years, Evantechs has been providing voice and data services for residential and commercial customers. Our services include: design, expansion, and relocation services of existing telcom data and surveillance systems. Our experience enables us to design and install systems that are cost effective and optimized to your specific requirements. Our team of highly skilled technicians is professional, timely, and sensitive to the needs of the client. We don't simply install equipment, we provide solutions. Give us a call today! .

"He was very helpful, quick to understand what I needed. Was able to diagnose the issue, and what I was looking for was not practical. Made another recommendation that ended up being much better. He even made time for us on a Saturday, without giving us the runaround. I appreciate his service very much."

Paul L on November 2022

For over 10 years, Evantechs has been providing voice and data services for residential and commercial customers. Our services include: design, expansion, and relocation services of existing telcom data and surveillance systems. Our experience enables us to design and install systems that are cost effective and optimized to your specific requirements. Our team of highly skilled technicians is professional, timely, and sensitive to the needs of the client. We don't simply install equipment, we provide solutions. Give us a call today! .

"He was very helpful, quick to understand what I needed. Was able to diagnose the issue, and what I was looking for was not practical. Made another recommendation that ended up being much better. He even made time for us on a Saturday, without giving us the runaround. I appreciate his service very much."

Paul L on November 2022


Avatar for TV Electric
TV Electric
2 Princess Pine Lane
5.00(
6
)
Approved Pro
TV Electric
2 Princess Pine Lane
5.00(
6
)
Approved Pro
22 years of experience
Free onsite estimate

Thank you for considering hiring us for your project! At TV Electric we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project. We are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family! As the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review. We look forward to earning your business, so please ask us for references!

"Had work performed by Terry from TV Electric and was very impressed. He installed multiple light fixtures including hanging lights, fan lights and dimmers. He was courteous, worked quickly and was reasonably priced. I would highly recommend as his work was top notch."

Nichole M on April 2025

Thank you for considering hiring us for your project! At TV Electric we pride ourselves on quality work, integrity and competitive pricing. We believe in giving our absolute best, no matter how big or small your project. We are experts in our trade, and we will keep you educated and informed throughout the completion of your project. We treat your property like it's our own, with the utmost respect, just like we would our own family! As the owner, my aim is to earn a 5-star review on the completion of your project. So, please let me know if at any time we are not living up to earning your perfect 5-star review. We look forward to earning your business, so please ask us for references!

"Had work performed by Terry from TV Electric and was very impressed. He installed multiple light fixtures including hanging lights, fan lights and dimmers. He was courteous, worked quickly and was reasonably priced. I would highly recommend as his work was top notch."

Nichole M on April 2025

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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

The homeowners guide to generator installations
From average costs to expert advice, get all the answers you need to get your job done.
A portable inverter generator
Mar 3, 2025
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The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Boy and girl jumping on the couch sofa
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A whole house generator can keep your home running during a power outage, but can it handle the energy demands of an air conditioner? Here’s what to consider.
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Is a whole-house generator worth it? Discover the key factors influencing ROI and whether it's the right choice for your home.
outdoor diesel power generator
Apr 1, 2025
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Diesel remains a popular fuel option for a variety of home generators, but you will need to plan your maintenance carefully. Here’s how it works.
emergency power supply outside home
Apr 4, 2025
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How much does it cost to run a standby generator? The answer varies based on the type and size of the generator. Find out more.
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