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Avatar for NETR Inc

NETR Inc

4.79(
76
)
Approved Pro

NETR Inc

4.79(
76
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1989 years of experience

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

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025

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

"Before installing a mini-split, the sales person told me that I'd need to cut down an interior shelf to a specific height. I paid a handyman $400 to do exactly what the sales person instructed. Later on, N.E.T.R. came and did the installation; however, AFTER the installation, a technician told me that they hadn't accounted for the vent opening and closing and that the shelf would need to be further cut down. As you can imagine, this type of service is rather ridiculous. If they knew that the shelf would need further cutting, they should have NOT installed the unit. I have called N.E.T.R. six (6) times in three weeks, and no one has called me back about this issue. After paying for the unit and for a handyman, it's ridiculous that I have AC that is compromised because no one with the company thought to properly measure the space so that the work by the handyman could be done once. At this point, I'd like for N.E.T.R. to take care of this for me."

Linda O on June 2025


Avatar for Sila Heating, Cooling, Plumbing and Electrical

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro

Sila Heating, Cooling, Plumbing and Electrical

4.54(
5,210
)
Approved Pro
Customers say: Super punctual
1989 years of experience
Free onsite estimate

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025

Live Your Most Comfortable Life with a Company You Trust. We offer Same Day Service and Next Day Installation! Sila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it’s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe — season after season. We guarantee satisfaction and are proud to have earned over 7,000 “A” ratings on Angie’s List and its prestigious Super Service Award!

"Great, as always. Sila is outstanding. We have a service contract with them for our furnace and AC and they keep them in tip-top shape. And when we have an urgent or emergency situation (heating, cooling, plumbing, electrical), they're who we call."

Jonathan P on November 2025


Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

4.68(
155
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
1948 years of experience

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.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 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.

"Happy with the work, and the customer service. Will definitely call on them for future work."

Fran P on June 2025


Avatar for Groundworks

Groundworks

3.72(
218
)
Approved Pro

Groundworks

3.72(
218
)
Approved Pro
Customers say: Super punctual
1984 years of experience
Free onsite estimate

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"I had the annual maintenance on our Water Grabber system performed today by service technician Archie Boone. Archie as always great customer service, communication and professionalism. It is always a pleasure to see him. He has been servicing our system the past several years. I highly recommend Groundworks and Archie for their services."

Mike S on October 2025

Groundworks, previously Busy Dog Basement Technologies, specializes in helping homeowners with their waterproofing, foundation repair, crawl space, and remodeling needs. Our top priority is providing high-quality home repair solutions and personalized service across Massachusetts and Rhode Island. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your foundation or basement. MA HIC 164895

"I had the annual maintenance on our Water Grabber system performed today by service technician Archie Boone. Archie as always great customer service, communication and professionalism. It is always a pleasure to see him. He has been servicing our system the past several years. I highly recommend Groundworks and Archie for their services."

Mike S on October 2025


Beth Finlayson Licensed Electrician

4.95(
117
)

Beth Finlayson Licensed Electrician

4.95(
117
)
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

My name is Beth Finlayson and I am the owner of this electrical business. I run a small business out of Woburn MA and have been in the trade for over a decade now. My company always strives to be prompt, professional, and yet still maintain reasonable rates.

"Beth did a great job installing new motion sensor lights on my property. Her customer service and communication was excellent. We arranged the entire job via text and email. She was very responsive to my questions and gave great advise. I will hire her again the next time I need a licensed electrician."

Dan F on January 2021

My name is Beth Finlayson and I am the owner of this electrical business. I run a small business out of Woburn MA and have been in the trade for over a decade now. My company always strives to be prompt, professional, and yet still maintain reasonable rates.

"Beth did a great job installing new motion sensor lights on my property. Her customer service and communication was excellent. We arranged the entire job via text and email. She was very responsive to my questions and gave great advise. I will hire her again the next time I need a licensed electrician."

Dan F on January 2021


Avatar for E R Electric

E R Electric

4.89(
773
)

E R Electric

4.89(
773
)
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

I'm a master electrician, with one employee at the moment. I do not use sub contractors. I'm a licensed in the state of MA and NH. I give out free estimates, ask for details. Depending on the job it could be charged hourly or a set price. I give a 1 year warranty on all my work. I'm always on time!!! Hope to hear from you soon...SPECIAL OFFER FOR AL MEMBERS--$699 FOR INSTALLATION OF UP TO 6 SMOKE DETECTORS FOR ANGIE'S LIST MEMBERS. PLEASE CALL US FOR DETAILS!

"E/R electric did a great job setting up my electric car charger. I will definitely use them for other electrical needs in the future"

Robert S on April 2023

I'm a master electrician, with one employee at the moment. I do not use sub contractors. I'm a licensed in the state of MA and NH. I give out free estimates, ask for details. Depending on the job it could be charged hourly or a set price. I give a 1 year warranty on all my work. I'm always on time!!! Hope to hear from you soon...SPECIAL OFFER FOR AL MEMBERS--$699 FOR INSTALLATION OF UP TO 6 SMOKE DETECTORS FOR ANGIE'S LIST MEMBERS. PLEASE CALL US FOR DETAILS!

"E/R electric did a great job setting up my electric car charger. I will definitely use them for other electrical needs in the future"

Robert S on April 2023


Avatar for JDO Electric

JDO Electric

4.91(
202
)

JDO Electric

4.91(
202
)
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

• 2016 Super Service Award Winner - 10th Consecutive Year! • With 20+ Years of Experience, JDO Electric is a Locally Owned & Family Operated Electrical Contracting Company Proudly Serving Metro Boston & the Surrounding Suburbs of Eastern MA! • A+ BBB Rating! • 24/7 Emergency Services • Residential & Commercial Electrical Service • Owner On-Site & Present at each Residence/Location ensuring the highest-quality service is being performed • Additional Service Area: All Eastern MA, Metro Boston • Suburban Service Areas: Cambridge, Somerville, Charlestown, Arlington, Lexington, Newton, Brookline, Waltham, Winchester, Wilmington, Burlington, Reading, & Andover • Additional Service Areas: Metro West, Lynn Beverly, Norwood & Brockton Counties. Portions of York Counties • Master Electrician License # A15472 •• Please Communicate by E-Mail - [email protected] or by Phone -

"This is the 2nd time I've contracted Mr. DiOliviera. Still stellar service from this pro. Even though busy he made time to come immediately and resolved the issues quickly and efficiently. 5 stars and high marks for this company. As a retried hotel GM i am used to dealing with contractor issues and truly appreciate having someone reliable and professional to contact when needed."

robert j on July 2021

• 2016 Super Service Award Winner - 10th Consecutive Year! • With 20+ Years of Experience, JDO Electric is a Locally Owned & Family Operated Electrical Contracting Company Proudly Serving Metro Boston & the Surrounding Suburbs of Eastern MA! • A+ BBB Rating! • 24/7 Emergency Services • Residential & Commercial Electrical Service • Owner On-Site & Present at each Residence/Location ensuring the highest-quality service is being performed • Additional Service Area: All Eastern MA, Metro Boston • Suburban Service Areas: Cambridge, Somerville, Charlestown, Arlington, Lexington, Newton, Brookline, Waltham, Winchester, Wilmington, Burlington, Reading, & Andover • Additional Service Areas: Metro West, Lynn Beverly, Norwood & Brockton Counties. Portions of York Counties • Master Electrician License # A15472 •• Please Communicate by E-Mail - [email protected] or by Phone -

"This is the 2nd time I've contracted Mr. DiOliviera. Still stellar service from this pro. Even though busy he made time to come immediately and resolved the issues quickly and efficiently. 5 stars and high marks for this company. As a retried hotel GM i am used to dealing with contractor issues and truly appreciate having someone reliable and professional to contact when needed."

robert j on July 2021


Avatar for JP O'Brien Electric LLP

JP O'Brien Electric LLP

4.88(
303
)

JP O'Brien Electric LLP

4.88(
303
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Since 2004, we have established the most reliable and trusted service around. We do the job right the first time and will not take short cuts to get a project done faster or cheaper. We do the work the way we would want it done in our own homes! It is of the utmost importance to us to be there for our customers when needed, whether it be nights, weekends, rain or shine, no matter how big or small the job. We are fully licensed and insured. Licenses & Affiliations: MA Journeyman License #50824 MA Masters License #20729 BBB - Better Business Bureau

"Punctual, polite, good suggestions, worked very hard to snake in new wiring, did a great job over 4 days rewiring the whole house except kitchen which was modern. Replaced and added dozens of outlets and fixtures in basement and 3 living floors, new elect heat in one room, removed old wiring and cleaned up afterwards. Work was done October 2021, no problems at all in the 3 months since then. Joe and Dave are highly recommended."

David D on January 2022

Since 2004, we have established the most reliable and trusted service around. We do the job right the first time and will not take short cuts to get a project done faster or cheaper. We do the work the way we would want it done in our own homes! It is of the utmost importance to us to be there for our customers when needed, whether it be nights, weekends, rain or shine, no matter how big or small the job. We are fully licensed and insured. Licenses & Affiliations: MA Journeyman License #50824 MA Masters License #20729 BBB - Better Business Bureau

"Punctual, polite, good suggestions, worked very hard to snake in new wiring, did a great job over 4 days rewiring the whole house except kitchen which was modern. Replaced and added dozens of outlets and fixtures in basement and 3 living floors, new elect heat in one room, removed old wiring and cleaned up afterwards. Work was done October 2021, no problems at all in the 3 months since then. Joe and Dave are highly recommended."

David D on January 2022


Avatar for Amaury Castillo Electric

Amaury Castillo Electric

5.00(
37
)

Amaury Castillo Electric

5.00(
37
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Looking for reliable electrical services in Boston? Look no further than Amaury Castillo Electric. Our team of experts is dedicated to providing top-notch solutions for all your electrical needs. Contact us today for a safe and efficient home project experience.

"Amaury was very professional and helpful. He took his time to understand the work we needed accomplished, sent an estimate promptly, completed the work quickly and explained everything, answering all our questions."

Susan M on September 2024

Looking for reliable electrical services in Boston? Look no further than Amaury Castillo Electric. Our team of experts is dedicated to providing top-notch solutions for all your electrical needs. Contact us today for a safe and efficient home project experience.

"Amaury was very professional and helpful. He took his time to understand the work we needed accomplished, sent an estimate promptly, completed the work quickly and explained everything, answering all our questions."

Susan M on September 2024


Avatar for Philip's Electric LLC

Philip's Electric LLC

4.91(
140
)

Philip's Electric LLC

4.91(
140
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Established in 2006. Creativity of Imagination at Work! Our knowledge, experience, and ability to provide all your electrical needs and the ability to provide quality craftsmanship. Welcome to Philip’s Electric, company own Philip Mendonca. I personally oversees every aspect of your project. As a result, we deliver quality, efficiency, and on-schedule performance that we are proud to stand behind. I can always be reached at 617-888-5434

"I was very pleased."

Amy D on August 2022

Established in 2006. Creativity of Imagination at Work! Our knowledge, experience, and ability to provide all your electrical needs and the ability to provide quality craftsmanship. Welcome to Philip’s Electric, company own Philip Mendonca. I personally oversees every aspect of your project. As a result, we deliver quality, efficiency, and on-schedule performance that we are proud to stand behind. I can always be reached at 617-888-5434

"I was very pleased."

Amy D on August 2022

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Generator Install questions, answered by experts

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

The Peabody, MA homeowners’ guide to generator installs

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