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Avatar for Cotti-Johnson Heating-Cooling-Electrical

Cotti-Johnson Heating-Cooling-Electrical

30 Waverly St
4.68(
155
)
Approved Pro

Cotti-Johnson Heating-Cooling-Electrical

30 Waverly St
4.68(
155
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
968 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.

"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 NETR Inc

NETR Inc

85 FLAGSHIP DR
4.79(
76
)
Approved Pro

NETR Inc

85 FLAGSHIP DR
4.79(
76
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
246 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

"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 PW DiMasi Electric

PW DiMasi Electric

63 Boynton St
4.61(
38
)
Approved Pro

PW DiMasi Electric

63 Boynton St
4.61(
38
)
Approved Pro
Customers say: Quality work
26 local quotes requested
32 years of experience

We have been a Waltham based local electrical company since 1993. I Peter W DiMasi Master Electrician (15273A) owner of PW DiMasi Electric am committed to serving our customers with the best service and quality of work. We have courteous and qualified electricians that will complete any electrical job, small or large. We pride ourselves in quality, service and when the job is done, cleanliness! You will not need to clean after us. We are here for all your electrical needs from lighting design, installing an extra receptacle to wiring a new building. We install phone, cable TV, lighting, recessed lights, electric heat, service upgrades, circuit breakers, power generators, computer networking and much more. We are fully licensed and insured and have been vote best of the best since 2000.

"We hired PW DiMasi to install receded lighting in an upstairs office and could not be happier with the results. Peter, the owner, was prompt in scheduling a time to provide a project estimate and quoted us a fair price. He also showed up on the day of the project to introduce the two electricians that would be doing the work. The team was courteous, professional, and did a great job installing the lights. They also were careful to cover the room with tarps to minimize dust and cleaned up the workspace afterwards. If we have a future need for an electrician, PW DiMasi will be our first call."

Jeff F on January 2025

We have been a Waltham based local electrical company since 1993. I Peter W DiMasi Master Electrician (15273A) owner of PW DiMasi Electric am committed to serving our customers with the best service and quality of work. We have courteous and qualified electricians that will complete any electrical job, small or large. We pride ourselves in quality, service and when the job is done, cleanliness! You will not need to clean after us. We are here for all your electrical needs from lighting design, installing an extra receptacle to wiring a new building. We install phone, cable TV, lighting, recessed lights, electric heat, service upgrades, circuit breakers, power generators, computer networking and much more. We are fully licensed and insured and have been vote best of the best since 2000.

"We hired PW DiMasi to install receded lighting in an upstairs office and could not be happier with the results. Peter, the owner, was prompt in scheduling a time to provide a project estimate and quoted us a fair price. He also showed up on the day of the project to introduce the two electricians that would be doing the work. The team was courteous, professional, and did a great job installing the lights. They also were careful to cover the room with tarps to minimize dust and cleaned up the workspace afterwards. If we have a future need for an electrician, PW DiMasi will be our first call."

Jeff F on January 2025


Avatar for JP McCurdy Electrical Services Inc

JP McCurdy Electrical Services Inc

330 Lynnway
4.38(
494
)
Approved Pro

JP McCurdy Electrical Services Inc

330 Lynnway
4.38(
494
)
Approved Pro
Customers say: Quality work
55 local quotes requested
26 years of experience

We are your solution to everything electrical! From your everyday electrical construction and repair items to the design of a complete integrated home system from the ground up and more! McCurdy Electric - call for peace of mind - we'll do the rest. Our trained and certified team of Electricians bring many years of experience to meet every one of your electrical projects. We stay ahead of the curve in custom installation and design of specialty electronic items, such as generator systems, smart home technology, advanced lighting control, Audio/Video, alarm, video surveillance, and much more. We can help you with all of your Electrical needs, and we have the track record to back it up. Please visit our website at www.McCurdyElectric.com for more information. Call for Peace of Mind. We'll Do the Rest.

"Thank you Joe/McCurdy electrical for coming on very short notice. I appreciate the time and care you took to figure out our electrical needs for the installation of a whole house water filtration system. Thank you also for the advice on some other projects we plan to do in the near future."

Paul P on May 2025

We are your solution to everything electrical! From your everyday electrical construction and repair items to the design of a complete integrated home system from the ground up and more! McCurdy Electric - call for peace of mind - we'll do the rest. Our trained and certified team of Electricians bring many years of experience to meet every one of your electrical projects. We stay ahead of the curve in custom installation and design of specialty electronic items, such as generator systems, smart home technology, advanced lighting control, Audio/Video, alarm, video surveillance, and much more. We can help you with all of your Electrical needs, and we have the track record to back it up. Please visit our website at www.McCurdyElectric.com for more information. Call for Peace of Mind. We'll Do the Rest.

"Thank you Joe/McCurdy electrical for coming on very short notice. I appreciate the time and care you took to figure out our electrical needs for the installation of a whole house water filtration system. Thank you also for the advice on some other projects we plan to do in the near future."

Paul P on May 2025


Avatar for WR Heating Cooling & Electrical

WR Heating Cooling & Electrical

64 Victoria Street
4.93(
27
)
Approved Pro

WR Heating Cooling & Electrical

64 Victoria Street
4.93(
27
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
11 years of experience

We are 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.

"Wilmer was absolutely stellar in his project to replace my old oil boiler with a a gas one. I shopped around heavily and Wilmer provided me the best quote and walked me through my setup to help me understand it before I ever committed to giving him the job. He was incredibly friendly, honest and knowledgeable. He provided communication throughout the project and was quick to get back to me on any questions I had. The work got done in 3 days as he promised. His team showed up on time, worked hard and cleaned up after themselves. The quality of the work is top notch. I am a very happy customer and would absolutely love to do business with WR again. "

Andrey N on June 2025

We are 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.

"Wilmer was absolutely stellar in his project to replace my old oil boiler with a a gas one. I shopped around heavily and Wilmer provided me the best quote and walked me through my setup to help me understand it before I ever committed to giving him the job. He was incredibly friendly, honest and knowledgeable. He provided communication throughout the project and was quick to get back to me on any questions I had. The work got done in 3 days as he promised. His team showed up on time, worked hard and cleaned up after themselves. The quality of the work is top notch. I am a very happy customer and would absolutely love to do business with WR again. "

Andrey N on June 2025


Avatar for Net DirXions, Inc.

Net DirXions, Inc.

27 Mica Lane, Suite 101
5.00(
11
)
Approved Pro

Net DirXions, Inc.

27 Mica Lane, Suite 101
5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

Commercial Business Only. Our Team is as diverse as you need it to be. Our Help Desk Team can help your employees with their desktop support issues, such as MS Office, Gmail, and much more. We provide immediate access to our live IT support professional via telephone, chat, or e-mail 24 hours a day. Our Advisory Team can guide management as to how your company can move forward with new technology. We recognized the fundamental challenges of small to medium sized businesses to support an IT infrastructure as well implement, integrate and support cloud-based solutions. The benefits of partnering with NDX and using our NDX Cloud Platform Services removes the need of maintaining in-house skilled technical staff, allows for the focus on your business and not technology, predictable IT budgets and enables business flexibility and mobility.

"They were very professional and went far beyond what I expected. I'm am an architect and paying attention to detail is very important to me. I was very impressed and would highly recommend them to anyone. C D Calhoun"

CD C on September 2023

Commercial Business Only. Our Team is as diverse as you need it to be. Our Help Desk Team can help your employees with their desktop support issues, such as MS Office, Gmail, and much more. We provide immediate access to our live IT support professional via telephone, chat, or e-mail 24 hours a day. Our Advisory Team can guide management as to how your company can move forward with new technology. We recognized the fundamental challenges of small to medium sized businesses to support an IT infrastructure as well implement, integrate and support cloud-based solutions. The benefits of partnering with NDX and using our NDX Cloud Platform Services removes the need of maintaining in-house skilled technical staff, allows for the focus on your business and not technology, predictable IT budgets and enables business flexibility and mobility.

"They were very professional and went far beyond what I expected. I'm am an architect and paying attention to detail is very important to me. I was very impressed and would highly recommend them to anyone. C D Calhoun"

CD C on September 2023


Aim Electric

22 Worcester Road
New on AngiNew on Angi
Approved Pro

Aim Electric

22 Worcester Road
New on AngiNew on Angi
Approved Pro
6 years of experience
Free onsite estimate

Welcome to Aim Electric,. We have been proudly serving the Sharon, MA area and are excited to work with you. Contact us today for quality service at an affordable rate. At Aim Electric, we treat your job as if it were our own! We are always ready to help!

Welcome to Aim Electric,. We have been proudly serving the Sharon, MA area and are excited to work with you. Contact us today for quality service at an affordable rate. At Aim Electric, we treat your job as if it were our own! We are always ready to help!


Avatar for EITS

EITS

2193 Commonwealth Avenue, Unit 382
5.00(
12
)
Approved Pro

EITS

2193 Commonwealth Avenue, Unit 382
5.00(
12
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
27 years of experience

Executive IT Strategies is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 20 years of experience in computer networking.. Call today and let us put our experience to work for you!

"Smooth process from beginning to end. Bruce and his team were attentive and thorough. A pleasure!"

Craig F on May 2024

Executive IT Strategies is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 20 years of experience in computer networking.. Call today and let us put our experience to work for you!

"Smooth process from beginning to end. Bruce and his team were attentive and thorough. A pleasure!"

Craig F on May 2024


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 Thang Phan

Thang Phan

22 Arcadia Street
4.67(
18
)
Approved Pro

Thang Phan

22 Arcadia Street
4.67(
18
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

I am a local electrician that services the Dorchester area. We are fully insured for all of your electrical needs and licensed to perform residential electrical services. We have over 10 years experience in the electrical trade. For a free quote, please call me today.

"Great work very professional"

Wayne J on July 2024

I am a local electrician that services the Dorchester area. We are fully insured for all of your electrical needs and licensed to perform residential electrical services. We have over 10 years experience in the electrical trade. For a free quote, please call me today.

"Great work very professional"

Wayne J on July 2024

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Generator Install questions, answered by experts

No, this is extremely dangerous, often illegal, and you should never attempt it. If you connect your generator to your home without a transfer switch, the generated power can backfeed, essentially flowing back into the utility lines. Backfeeding exposes a significant threat of fatalities or harm to you and utility personnel, in addition to jeopardizing the structural integrity of your home.

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.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

Whole-house generators can last 20 to 40 years with normal operation and proper maintenance. If you look up the specifications for your generator, you may be able to find a lifespan rated in hours of operation. Life expectancy will vary depending on how often and for how long you use the generator each year. Choosing a fuel with low impact like natural gas or diesel can help generators last as long as possible.

The East Boston, MA homeowners’ guide to generator installs

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