Get matched with top lighting pros in Groton, MA

•Approved Pro

NETR Inc

4.79(

Customers say: Super punctual

•Approved Pro

Recommended by 93% of Angi customers

242 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

"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

Paul Donlon

Paul Donlon

28 years of experience

I am very handy and have been working in the trades for over 25 years and over the years I've worked on all things house and property related to maintenance, repair and upkeep at one point or another. I'm great at problem solving and attention to detail and I take extreme pride in not only the work I do but also in giving the customer the best experience possible during what can often be difficult and stressful situation.

Callahan Electric

Callahan Electric

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

"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

Jusczak Electric

Jusczak Electric

19 years of experience

Electrical contractors completing projects of any size for residential, commercial, and industrial industries.

Modern Energy

Modern Energy

Modern Energy is a top rated Mass Save contractor that specializes in Whole Home Heat Pump installation for both residential and commercial customers. With deep roots in the energy efficiency world, we always make sure to install the most efficient, cost-effective products on the market. Plus - we have in house staff to help our customers handle the rebate and financing process!

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 2025

"The guys at Modern Energy did an excellent job, Ryan was VERY responsive and got me the best deal possible. These past two summers showed how beneficial this type of system mini-splits are. Highly recommend!"

Michael T on September 2025

Lyons Electrical Contractors, LLC

Lyons Electrical Contractors, LLC

With a wide variety of experience in almost all areas residential and commercial electrical services, Lyons Electrical Contractors is equipped to handle any electrical issue you may have, from simple repairs to complex installations. Electrical services include lighting installation, panel upgrades, EV charger install, remodels, fire alarm and more. We are committed to providing quality workmanship and exceptional customer service. Check out our website! https://lyonselectricalcontractorsllc.com/

"We hired Pat and his team to upgrade a subpanel and install a few new outlets on our house. From planning the project, to pulling permits, to installing and following up with the inspector to close the permit, every single step was handled spectacularly by Lyons. We will definitely be hiring them for more work in the future and would highly recommend!"

Sofia G on July 2024

"We hired Pat and his team to upgrade a subpanel and install a few new outlets on our house. From planning the project, to pulling permits, to installing and following up with the inspector to close the permit, every single step was handled spectacularly by Lyons. We will definitely be hiring them for more work in the future and would highly recommend!"

Sofia G on July 2024

Matthew Steele Electrical

Matthew Steele Electrical

Matthew Steele Electrical is your one stop shop for all your electrical needs. We do the following: -service upgrades and changes -whole house generators and transfer switches -recess lightning -ceiling fans -pools and hot tubs -electric car chargers -bathroom and kitchens -additions/ remodels -whole house -mini splits -low voltage wiring -knob and tube wiring -service calls. We take pride in all of our work and hope to help you on your next project!

"Very fast and very professional ."

Dennis C on July 2023

"Very fast and very professional ."

Dennis C on July 2023

Andrew Tsoukalas Electrician L.L.C.

Andrew Tsoukalas Electrician L.L.C.

Licensed electrician specializing in new/old work residential, commercial, and HVAC systems. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Andrew understood that my situation was an emergency and acted right away to get my house back on-line especially when we were having record cold."

Rich S on February 2023

"Andrew understood that my situation was an emergency and acted right away to get my house back on-line especially when we were having record cold."

Rich S on February 2023

The Wicked Whiz Property Services, LLC

The Wicked Whiz Property Services, LLC

The Wicked Whiz Property Services performs as many tasks as exist in your household! From general repairs to walls, interior painting, appliance troubleshooting/repair, mounting tv's and other items, moving furniture, electrical and plumbing fixtures, and anything else you can think of, we can do it for you! With years of experience in property management and maintenance, you can expect quality workmanship.

Vailante Electrical LLC

Vailante Electrical LLC