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Your Air Conditioning Installation & Replacement Company in MA Since 1989

Are you hearing loud noises coming from your AC unit? Is your unit frequently leaking, or do you have high utility costs and frequent power losses? Then it might be time to replace your system.

A modern AC system can save you money and have a positive impact on your comfort..

AC System Installation MA

Our highly trained technicians can maintain your current air conditioning system or install newer energy-efficient technologies like ductless AC systems.

We stand by our work 100% and make your comfort and satisfaction our top priority!Contact Us

Why Choose N.E.T.R Inc. for Your AC Installation, Repair or Maintenance?

  • 24/7 quick-response service
  • 30 years of satisfied customers
  • 5,000 of AC system installations in Massachusetts, Maine and New Hampshire
  • Satisfaction guarantee: If you’re not happy with your AC system, we’re not happy
  • Flexible financing options on AC and heating systems
  • 10 year warranties on premium products like Mitsubishi, LG and American Standard  
  • Better air conditioning products mean better savings and reliability

Get a Free Air Conditioning Quote or Set Up an In-Home Consultation

Have questions on what you should do regarding your aging AC system or purchasing a new one?

Set up a free in-home consultation now and one of our knowledgeable HVAC experts will answer all your air conditioning questions, until you feel comfortable deciding if maintaining, upgrading or replacing your AC unit is right for you. 

Or, simply request a free quote and see how we stack up.

AC Systems That N.E.T.R Inc. Can Install and Maintain

Our expert Massachusetts-based AC installation technicians install and service all major brands of high-efficiency cooling systems, including but not limited to heat pumps, and ductless split systems.

Mitsubishi ElectricLG-Logoamerican-logo


Benefits of Central Air Conditioning

  • Comfort control
  • Programmable thermostats
  • Peace & quiet
  • Better warranties
  • Increased home value

Thinking about going ductless? Learn more about our ductless AC options here.

Servicing AC Systems throughout eastern Massachusetts, Southern New Hampshire, and Southern Maine.

If you need maintenance on any type of air conditioning systems, from traditional central air to ductless HVAC, we can help. Our certified AC repair technicians handle everything from simple part replacements to major repairs.

Tired of high air conditioning costs?

Contact Us

Our business hours are 8:00 a.m. - 5:00 p.m. Monday – Friday

For emergencies any day and any time, call 781-933-6387.



85 Flagship Drive, North Andover MA 01845




Satisfied Customers Just Like You

We recently installed a ductless air conditioning units in my house. Brian B. and Ivan B. were great! They came promptly, worked real professionally and cleaned up afterwards too! I loved their work!


By Dongeun Lee on 08/20/19

Ray was very pleasant and knowledgeable. He did a great job cleaning our air conditioning unit. Highly recommend him.


By Diane Correale on 08/12/19

When I was on the phone with Kris regarding an issue with my air conditioner he took his time to explain it all but most of all the way he did very soothing with out been negative ( I am a business owner but kris did not know that ) I am all about costumer service , I give him a 10 he really impressed me hoping his owner appreciation Kris


By Maria Pintone on 08/03/19




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