We strive to serve our customers with quality and integrity. Focusing on mostly residential service, installations and repairs. Our main customer base is homeowners who appreciate building trust with an honest contractor. And we love small jobs! We honor all american veterans with a 10% discount (upon request & proof of service)
"Quick professional installation of a new EV charger and surge protector. Communication was SO easy and the work was quick and very well done. "
Jim C on December 2025
We strive to serve our customers with quality and integrity. Focusing on mostly residential service, installations and repairs. Our main customer base is homeowners who appreciate building trust with an honest contractor. And we love small jobs! We honor all american veterans with a 10% discount (upon request & proof of service)
"Quick professional installation of a new EV charger and surge protector. Communication was SO easy and the work was quick and very well done. "
Livnik Investments, LLC is your number one electrical expert in Sudbury! Our passion and experience shine through on every job, big or small. We pride ourselves on attention to detail and building long-lasting business relationships with our clients. Call today for a free estimate!
"Paul was fantastic! He did an excellent job installing 4 ceiling fans for us. He kept me updated on what steps were needed in each location (e.g., removing existing track lighting, installing a fan box, extending the wiring, etc.) and worked efficiently. Paul was also kind enough to explain things to me, which I really appreciated. He has been in the field for a long time and is a wealth of knowledge. I will definitely reach out to Paul for future projects involving electrical!"
Chelsea F on August 2025
Livnik Investments, LLC is your number one electrical expert in Sudbury! Our passion and experience shine through on every job, big or small. We pride ourselves on attention to detail and building long-lasting business relationships with our clients. Call today for a free estimate!
"Paul was fantastic! He did an excellent job installing 4 ceiling fans for us. He kept me updated on what steps were needed in each location (e.g., removing existing track lighting, installing a fan box, extending the wiring, etc.) and worked efficiently. Paul was also kind enough to explain things to me, which I really appreciated. He has been in the field for a long time and is a wealth of knowledge. I will definitely reach out to Paul for future projects involving electrical!"
Amaury Castillo Electric is a locally owned and operated business serving the Lawrence area! Please call us for all your free estimates for your electrical needs! We will do residential and commercial work for you! We have over 12 years of experience! Call us right away to schedule your project with me!
"Amaury was a professional, efficient, clean electrician who understood precisely what I wanted. He was prompt, knowledgeable, and delivered the project quickly. I highly recommend him for any electrical job."
Jeanine W on December 2023
Amaury Castillo Electric is a locally owned and operated business serving the Lawrence area! Please call us for all your free estimates for your electrical needs! We will do residential and commercial work for you! We have over 12 years of experience! Call us right away to schedule your project with me!
"Amaury was a professional, efficient, clean electrician who understood precisely what I wanted. He was prompt, knowledgeable, and delivered the project quickly. I highly recommend him for any electrical job."
Cote Electric, LLC is a Manchester, New Hampshire-based electrical contractor specializing in residential, commercial, and industrial services. Established in 1987, the company has over 30 years of experience providing integrated electrical solutions throughout Northern New England.
"Emilio was quiet at first but I soon realized he was concentrating on diagnosing issues with my generator. He thoroughly went thru the system and then went about doing the repairs needed all the while being a personable and respectful person. Absolutely would recommend the company again"
Joseph A on October 2025
Cote Electric, LLC is a Manchester, New Hampshire-based electrical contractor specializing in residential, commercial, and industrial services. Established in 1987, the company has over 30 years of experience providing integrated electrical solutions throughout Northern New England.
"Emilio was quiet at first but I soon realized he was concentrating on diagnosing issues with my generator. He thoroughly went thru the system and then went about doing the repairs needed all the while being a personable and respectful person. Absolutely would recommend the company again"
I have the experience, and I am committed to providing quality workmanship and superior customer service on all my applications. I strive to maintain my reputation as a high quality, very service-oriented company with my main focus being customer satisfaction.
"Ryan provided great service and advice at a reasonable price. He communicated project plans with a detailed itemized proposal and kept me up to date on the progress throughout. He also took time to explain various options and help me best understand what type of electrical upgrades were needed. He obtained all the necessary permits and passed the town inspection with no issues, paying attention to all relevant electrical codes."
Erich K on December 2025
I have the experience, and I am committed to providing quality workmanship and superior customer service on all my applications. I strive to maintain my reputation as a high quality, very service-oriented company with my main focus being customer satisfaction.
"Ryan provided great service and advice at a reasonable price. He communicated project plans with a detailed itemized proposal and kept me up to date on the progress throughout. He also took time to explain various options and help me best understand what type of electrical upgrades were needed. He obtained all the necessary permits and passed the town inspection with no issues, paying attention to all relevant electrical codes."
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.
"I called Integrity Electrical after several outlets in the house failed, including the one for the refrigerator. Joe responded immediately, figured out the problem, and did a great job of explaining the work that needed to be done. Joe and Alex upgraded the house to 200 amp service, which involved replacing the electrical panel, upgrading outlets, and replacing a meter box that had water damage. I would not hesitate to call them again."
maureen k on June 2020
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.
"I called Integrity Electrical after several outlets in the house failed, including the one for the refrigerator. Joe responded immediately, figured out the problem, and did a great job of explaining the work that needed to be done. Joe and Alex upgraded the house to 200 amp service, which involved replacing the electrical panel, upgrading outlets, and replacing a meter box that had water damage. I would not hesitate to call them again."
With over 25 years of experience, JBR Computers works hard to bring each customer the best possible service and quality available. JBR Computers can help you with Design and Installation of Wi-Fi Networks and Hardwired Network for your Business or Home. We install Routers, Switches, Firewalls and Wi-Fi Networks. We sell Internet ISP Service for Verizon or Comcast for Business speeds from 100MB to 1GB service We Sell, Install and Maintain our (VoIP) Voice Over IP Phone service JBR Computers can help you from Setup and Installation We can help you with your existing network to help with better performance we install Cat-6, Cat-7 or Fiber cabling. ++++++++++++++++++++We Do NOT Repair Cell Phones of any kind+++++++++++++++++++++++++++++++++
"John was knowledgeable and efficient. He finished all the projects satisfactorily."
Joan T on October 2025
With over 25 years of experience, JBR Computers works hard to bring each customer the best possible service and quality available. JBR Computers can help you with Design and Installation of Wi-Fi Networks and Hardwired Network for your Business or Home. We install Routers, Switches, Firewalls and Wi-Fi Networks. We sell Internet ISP Service for Verizon or Comcast for Business speeds from 100MB to 1GB service We Sell, Install and Maintain our (VoIP) Voice Over IP Phone service JBR Computers can help you from Setup and Installation We can help you with your existing network to help with better performance we install Cat-6, Cat-7 or Fiber cabling. ++++++++++++++++++++We Do NOT Repair Cell Phones of any kind+++++++++++++++++++++++++++++++++
"John was knowledgeable and efficient. He finished all the projects satisfactorily."
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."
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Hia work was prompt and clean. Very pleased with the overall experience."
CARL E on September 2025
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"Hia work was prompt and clean. Very pleased with the overall experience."
CARL E on September 2025
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Generator Install questions, answered by experts
No, you cannot plug a generator directly into a wall outlet in your home. Plugging in a generator without an interlocking kit, extension cord, or wall outlet receptacle is incredibly dangerous and can cause back-feeding—power from the generator back-feeds into utility lines. Also, if the main power comes back on while your generator is on, it could damage the generator and cause a house fire.
Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.
A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.
A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.
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.
The Reading, MA homeowners’ guide to generator installs
From average costs to expert advice, get all the answers you need to get your job done.
Keeping on top of generator maintenance and repairs gives you extra peace of mind as a homeowner. Find out how much regular generator maintenance costs.
Traditional and inverter generators can provide off-grid or emergency power. Learn the pros and cons of a traditional generator vs. inverter generator.