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There are 13 highly-rated local generator installers.

Generator installers in Tewksbury

Avatar for Village Home Services
Village Home Services
9 Kidder Road
5.00(
11
)
Approved Pro
Village Home Services
9 Kidder Road
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
93 local quotes requested

Village Home Services formally known as Village Electric and Village HVAC. We stand at the intersection of expertise and community spirit. With our plumbing, electrical, and HVAC services, we go beyond fixing problems; we enrich lives, one home at a time. In our village, your comfort and safety are our top priorities.

"It went great! They were very responsive and the people who work there are very helpful and pleasant. I would highly recommend them to others."

Brenda R on November 2019

Village Home Services formally known as Village Electric and Village HVAC. We stand at the intersection of expertise and community spirit. With our plumbing, electrical, and HVAC services, we go beyond fixing problems; we enrich lives, one home at a time. In our village, your comfort and safety are our top priorities.

"It went great! They were very responsive and the people who work there are very helpful and pleasant. I would highly recommend them to others."

Brenda R on November 2019


Avatar for Heritage Home Service
Heritage Home Service
2550 Main St
4.14(
14
)
Approved Pro
Heritage Home Service
2550 Main St
4.14(
14
)
Approved Pro
Customers say: Quality work
165 local quotes requested
39 years of experience

Heritage Home Service is proud to serve residents from Northeast 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.

"My initial experience was good when I had Ryan come and rebuild the interior of the boiler and the associated electronics for a total of around $1500 including parts and lots of labor. Then when I called today to have a simple relay replaced, Richard arrived and these people at Heritage proved that they are hucksters of the first order. Stay away from them at all costs!! They tried to sell me a $80 off-the-shelf switching relay for $500!!! Then when I told Richard I would never pay $500 for a switching relay (which requires about 20 minutes to install) he offered to take $100 off his price if I supplied the part! In other words, he was making me the "wonderful" offer to charge me only $1200/hr for his installation time!!! Called the "sales manager" and he was smug, lecturing, defensive and TOTALLY unhelpful. I would NEVER do business with this company ever again. It's highway robbery!! The tech arrived and worked for approximately 90 minutes before ever quoting me the price. It was only AFTER he had uninstalled my existing relay that he quoted me the price of around $500 for a standard Honeywell relay that I just bought from Lowes for $80. The "Service Manager" went on-and-on on the phone about how it was like how a restaurant charges a lot more than the food cost for its dishes. Unfortunately, this "Service Manager" has NO IDEA what he is talking about. In a restaurant, a professional chef prepares the food with lots of other ingredients, it is then served in a pleasing environment, and there is service from waiters, busboys, maitre d, and sometimes the owner and chef. NONE of these things happen here. A tech spends 20 minutes installing a standard, off-the-shelf part to which the tech adds NO VALUE WHATSOEVER, and for that "service" these hucksters add $400 to the price of an $80 part!!! For 20 minutes of work that comes to $1200/hr. "Highway robbery" would be a kind way of phrasing it. Based on the fact that they DO NOT tell you up front how much it will cost, but only after 90 minutes of wasted time during which the tech accomplished nothing other than uninstalling my existing relay which I told him to put back, I would say "bait-and-switch" and virtual fraud would be more descriptive terms for the services that this company provides. Stay away from Heritage if you don't want to be massively ripped off and have your time wasted!"

Jonathan C on December 2018

Heritage Home Service is proud to serve residents from Northeast 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.

"My initial experience was good when I had Ryan come and rebuild the interior of the boiler and the associated electronics for a total of around $1500 including parts and lots of labor. Then when I called today to have a simple relay replaced, Richard arrived and these people at Heritage proved that they are hucksters of the first order. Stay away from them at all costs!! They tried to sell me a $80 off-the-shelf switching relay for $500!!! Then when I told Richard I would never pay $500 for a switching relay (which requires about 20 minutes to install) he offered to take $100 off his price if I supplied the part! In other words, he was making me the "wonderful" offer to charge me only $1200/hr for his installation time!!! Called the "sales manager" and he was smug, lecturing, defensive and TOTALLY unhelpful. I would NEVER do business with this company ever again. It's highway robbery!! The tech arrived and worked for approximately 90 minutes before ever quoting me the price. It was only AFTER he had uninstalled my existing relay that he quoted me the price of around $500 for a standard Honeywell relay that I just bought from Lowes for $80. The "Service Manager" went on-and-on on the phone about how it was like how a restaurant charges a lot more than the food cost for its dishes. Unfortunately, this "Service Manager" has NO IDEA what he is talking about. In a restaurant, a professional chef prepares the food with lots of other ingredients, it is then served in a pleasing environment, and there is service from waiters, busboys, maitre d, and sometimes the owner and chef. NONE of these things happen here. A tech spends 20 minutes installing a standard, off-the-shelf part to which the tech adds NO VALUE WHATSOEVER, and for that "service" these hucksters add $400 to the price of an $80 part!!! For 20 minutes of work that comes to $1200/hr. "Highway robbery" would be a kind way of phrasing it. Based on the fact that they DO NOT tell you up front how much it will cost, but only after 90 minutes of wasted time during which the tech accomplished nothing other than uninstalling my existing relay which I told him to put back, I would say "bait-and-switch" and virtual fraud would be more descriptive terms for the services that this company provides. Stay away from Heritage if you don't want to be massively ripped off and have your time wasted!"

Jonathan C on December 2018


Avatar for Integrity Electrical Services
Integrity Electrical Services
20 Fairview Ave
4.95(
41
)
Approved Pro
Integrity Electrical Services
20 Fairview Ave
4.95(
41
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
37 local quotes requested

Our Services-24/7 Emergency Service, Fast Same Day Service, Electrical Repairs, Wiring Upgrades, Panel Replacements & Upgrades, Generator Install, Ceiling Fan Repair/Installations, Indoor/Outdoor Lighting Installations, Smart Home Installations, Electric Vehicle Charging Stations And Much More! Please Call Or Text Our Office Today To Schedule An Appointment At 978-761-5978.

"Joe O'Connell did extensive rewiring to replace knob/tube wiring in our 150 year old house. The project involved running new wires through walls and ceilings into over six rooms, along with upgrades to electrical panels. Joe and his assistant were very courteous and respectful - they were careful to cover the hardwood floors and use drop cloths to control the dust, and vacuumed up at the end of each day. Joe did great work, everything to code, no cut corners, and brought to my attention some concerns outside the scope of the project that we also had him address. He is a good communicator and returns phone calls promptly. I completely trust him and the work he does, and recommend him highly."

Derek P on October 2018

Our Services-24/7 Emergency Service, Fast Same Day Service, Electrical Repairs, Wiring Upgrades, Panel Replacements & Upgrades, Generator Install, Ceiling Fan Repair/Installations, Indoor/Outdoor Lighting Installations, Smart Home Installations, Electric Vehicle Charging Stations And Much More! Please Call Or Text Our Office Today To Schedule An Appointment At 978-761-5978.

"Joe O'Connell did extensive rewiring to replace knob/tube wiring in our 150 year old house. The project involved running new wires through walls and ceilings into over six rooms, along with upgrades to electrical panels. Joe and his assistant were very courteous and respectful - they were careful to cover the hardwood floors and use drop cloths to control the dust, and vacuumed up at the end of each day. Joe did great work, everything to code, no cut corners, and brought to my attention some concerns outside the scope of the project that we also had him address. He is a good communicator and returns phone calls promptly. I completely trust him and the work he does, and recommend him highly."

Derek P on October 2018


Avatar for NETR Inc
NETR Inc
85 FLAGSHIP DR
4.84(
74
)
Approved Pro
NETR Inc
85 FLAGSHIP DR
4.84(
74
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
213 local quotes requested

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"I reached out to couple of companies and ultimately decided to go with NETR, and I’m glad I did. From the salesman Chip, to the installer Daniel Rodriguez, their professionalism was exceptional. Their work ethic and attention to detail sets them apart from other companies in this business. Daniel is an expert and went above and beyond to make sure everything was tidy and perfect! They’re really invested in customer satisfaction!"

Navya P on March 2024

For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England

"I reached out to couple of companies and ultimately decided to go with NETR, and I’m glad I did. From the salesman Chip, to the installer Daniel Rodriguez, their professionalism was exceptional. Their work ethic and attention to detail sets them apart from other companies in this business. Daniel is an expert and went above and beyond to make sure everything was tidy and perfect! They’re really invested in customer satisfaction!"

Navya P on March 2024


Avatar for TMF Construction Services
TMF Construction Services
51 Richardson Street
5.00(
3
)
Approved Pro
TMF Construction Services
51 Richardson Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
67 local quotes requested

TMF Construction Services is proud to provide you with window, doors, decks and other remodeling needs. We take the time to understand each our customers' needs and strive to ensure their satisfaction. We have been in the construction field for over 20 years. If you're looking for a company that provides outstanding service, then look no further than TMF. Please check out recent work under the photos section. Call us at 781-241-2206, email at [email protected] or click to schedule an estimate today! We look forward to hearing from you. Thanks Brian and Jimmy TMF Construction Services

"They did an excellent job. Did electrical modifications and microwave installation. They were on time and reasonably priced. I will definitely use them again. I could not be happier. Thank you Jimmy and Brian. Diana"

Diana D on December 2024

TMF Construction Services is proud to provide you with window, doors, decks and other remodeling needs. We take the time to understand each our customers' needs and strive to ensure their satisfaction. We have been in the construction field for over 20 years. If you're looking for a company that provides outstanding service, then look no further than TMF. Please check out recent work under the photos section. Call us at 781-241-2206, email at [email protected] or click to schedule an estimate today! We look forward to hearing from you. Thanks Brian and Jimmy TMF Construction Services

"They did an excellent job. Did electrical modifications and microwave installation. They were on time and reasonably priced. I will definitely use them again. I could not be happier. Thank you Jimmy and Brian. Diana"

Diana D on December 2024


Avatar for Penney Electrical Corp
Penney Electrical Corp
3 Daniel Drive
5.00(
11
)
Approved Pro
Penney Electrical Corp
3 Daniel Drive
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
42 local quotes requested

Local family electrical business since 1984 servicing Boston and greater Boston/north shore area. We specialize in all types of wiring: Commerical, residential, generators, fire alarm, data, and can fully install heat pumps/mini split AC systems.

"It went seamlessly well. Great dudes and they even fixed some light switches for me for free!!"

Pre P on November 2024

Local family electrical business since 1984 servicing Boston and greater Boston/north shore area. We specialize in all types of wiring: Commerical, residential, generators, fire alarm, data, and can fully install heat pumps/mini split AC systems.

"It went seamlessly well. Great dudes and they even fixed some light switches for me for free!!"

Pre P on November 2024


Avatar for Callahan Electric
Callahan Electric
76 Old Marsh Hill Road
5.00(
5
)
Approved Pro
Callahan Electric
76 Old Marsh Hill Road
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
60 local quotes requested

New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers

"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"

Abbygail Z on January 2025

New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers

"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"

Abbygail Z on January 2025


Heenan Electric
19 Franklin St
4.90(
5
)
Approved Pro
Heenan Electric
19 Franklin St
4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We can take on a wide range of residential electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Since hiring Chris Iâ ve recommended him to several family and friends. Communication was seamless and the project was completed within the timeframe outlined. We are really happy with the final project and we would certainly hire Chris again with any future project!"

Rachel M on April 2023

We can take on a wide range of residential electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

"Since hiring Chris Iâ ve recommended him to several family and friends. Communication was seamless and the project was completed within the timeframe outlined. We are really happy with the final project and we would certainly hire Chris again with any future project!"

Rachel M on April 2023


KSG Electric
12 Prospect Court
4.88(
8
)
Approved Pro
KSG Electric
12 Prospect Court
4.88(
8
)
Approved Pro
Customers say: Quality work
6 years of experience

KSG Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Had him install 3 Ring Cameras and fix some switches. Reached out via phone. Showed up to do estimate. Was quick to give estimate. Let me know when he was available. Did a great job, cleaned up. Was good about making sure cats didn't get out. Will hire again. "

Melissa W on April 2025

KSG Electric is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Had him install 3 Ring Cameras and fix some switches. Reached out via phone. Showed up to do estimate. Was quick to give estimate. Let me know when he was available. Did a great job, cleaned up. Was good about making sure cats didn't get out. Will hire again. "

Melissa W on April 2025


Avatar for Bellas Electric
Bellas Electric
8 Riverbank Terrace
5.00(
3
)
Approved Pro
Bellas Electric
8 Riverbank Terrace
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Finding reliable electrical services for commercial or residential projects is vital to ensure safety, quality, and efficiency. Electrical work requires precision and expertise, as improper installation or repair can lead to serious consequences, including electrical fires or system failures. That’s where Bella’s Electric Inc comes into play. As a trusted electrician in the Massachusstes area, we provide top-notch services backed by years of experience and a commitment to excellence. Our team takes pride in delivering safe, efficient, and cost-effective solutions that meet our clients’ unique needs. Choose Bella’s Electric Inc for your next project and experience the difference that professionalism and dedication can make.

"Highly recommended Ti ago who is a master electrician, devoted family man, earnest, thorough,hardworking,honest,gave upfront pricing, punctual,wants homeowner to be pleased with his job, will return promptly for any concerns or additional work, he likes to stay with one customer at a time before taking on another job, 5 stars"

Steven C on February 2023

Finding reliable electrical services for commercial or residential projects is vital to ensure safety, quality, and efficiency. Electrical work requires precision and expertise, as improper installation or repair can lead to serious consequences, including electrical fires or system failures. That’s where Bella’s Electric Inc comes into play. As a trusted electrician in the Massachusstes area, we provide top-notch services backed by years of experience and a commitment to excellence. Our team takes pride in delivering safe, efficient, and cost-effective solutions that meet our clients’ unique needs. Choose Bella’s Electric Inc for your next project and experience the difference that professionalism and dedication can make.

"Highly recommended Ti ago who is a master electrician, devoted family man, earnest, thorough,hardworking,honest,gave upfront pricing, punctual,wants homeowner to be pleased with his job, will return promptly for any concerns or additional work, he likes to stay with one customer at a time before taking on another job, 5 stars"

Steven C on February 2023

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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
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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
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emergency power supply outside home
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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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