Founded in 2018 and backed by over two decades of hands-on experience, NI HVAC Services has become a trusted name in the HVAC industry across Massachusetts, Connecticut, and surrounding areas. What started as a small family business has grown into a company known for quality craftsmanship, honest service, and customer satisfaction. We take pride in offering premium HVAC solutions that meet American standards, combining expertise, reliability, and personalized attention for every client.
At NI HVAC Services, we proudly serve homeowners and businesses across Massachusetts, Connecticut, and nearby regions — covering up to 250 miles from our base in Lowell, MA.
Whether you need an HVAC installation, heating repair, or AC maintenance, our licensed team delivers prompt, reliable, and high-quality service wherever you are.
We combine advanced tools, expert technicians, and a commitment to comfort — ensuring that every client receives the same standard of excellence, no matter the location.
Our Commitment to Quality, Precision, and Customer Satisfaction
Decades of proven expertise delivering high-performance HVAC systems with professional precision and attention to detail.
Our certified technicians follow the highest U.S. standards, ensuring safety, compliance, and top-tier results in every project.
We act quickly to restore your comfort — most service calls are solved on the first visit, without unnecessary
delays.
All installations include
a 12-month warranty,
giving you peace of mind
and long-term
performance.
Expert AC installation for homes and businesses,
designed for comfort and energy efficiency.
Preventive care to extend the life of your HVAC system and reduce energy costs.
Fast and professional repairs available across MA, CT, and nearby states.
Reliable heating system setups to keep your property warm and efficient during the coldest months.
From residential air conditioning installations to large-scale commercial heating systems, NI HVAC Services has successfully completed more than 750 projects. Each job is handled with precision and a commitment to lasting performance, reflecting our dedication to quality and customer satisfaction.
Our reputation is built on satisfied customers who rely on us for fast response, honest pricing, and exceptional workmanship. See what our clients have to say about their experience with NI HVAC Services.
Posted on Juscelia L20. October, 2025Trustindex verifies that the original source of the review is Google. “I had a fantastic experience with the installation and maintenance of my air conditioner. They were extremely punctual and did an excellent job. I’m very pleased with the service!”Posted on Valerio O9. October, 2025Trustindex verifies that the original source of the review is Google. When my 5-year-old furnace stopped working, I first contacted a large local HVAC company. They condemned the unit and quoted me $15–20K for a full replacement. A family member referred me to NI HVAC for a second opinion, and I’m so glad they did. Ismael and his team came out the same day I called and had my furnace running again within an hour. He returned the next day to correct the original installation design issue and bring the furnace and ductwork up to code—all within 48 hours of my first call. I was extremely impressed by Ismael’s honesty and professionalism. It was clear he had my family’s best interests in mind, not just a sale. The cost was very fair, and most importantly, I didn’t need a new furnace after all. I’ll continue to use NI HVAC for all my heating and cooling needs and strongly recommend them to anyone looking for trustworthy, knowledgeable, and reliable service.Posted on Aline H22. September, 2025Trustindex verifies that the original source of the review is Google. Excellent work. Very competent professionals. I highly recommend it.Posted on Gabriela T19. September, 2025Trustindex verifies that the original source of the review is Google. Great service, very professional. Highly recommend!
Whether you need installation, repair, or maintenance, our licensed team is ready to deliver the perfect HVAC solution for your space. Experience reliability, precision, and excellence from start to finish.
Tell us about your project — our licensed technicians will contact you to schedule your HVAC service or provide a free quote.
24/7 Email Support
Monday to Saturday: 8:00 AM – 6:00 PM
Serving all major counties
Monday - Saturday: 8:00 AM - 6:00 PM
Sunday: Closed
Emergency services available 24/7
We respond to all inquiries within 24 hours during regular business hours.
Monday to Saturday: 8:00 AM – 6:00 PM
24/7 Email Support
Serving all major counties