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NisAir has proudly been serving Martin, Palm Beach, St. Lucie, and Indian River County since 1973. As a family-owned and operated business, we were founded on the principals of integrity, quality work, and always putting the customer first. We've grown a lot over the years, and that growth has been fueled by our customer's satisfaction and referrals.

In fact, our Lennox Premier Dealer status recently rated us at 99% customer satisfaction. NisAir offers exceptional air conditioning, heating, and HVAC services that can keep your home comfortable throughout the year.
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NisAir was founded in 1973 by our parents Philip and Patricia Nisa. After a few years of working in the HVAC field, the Nisas started their own company in a small office in Jensen Beach with their partner, who Philip worked for previously in Boca Raton, FL. Growing up in and around the air conditioning business with our father made every day a learning experience. It was a time when contracts and projects were approved with a handshake and a smile. Dad had a strong work ethic, and he passed that down to us.
A humming air conditioner can be completely normal, as long as it's making a steady, low sound. However, if any of your A/C components start to. Just like any type of mechanical equipment, your air conditioner makes noise when it's operating. Over time, you get used to hearing its usual. If you're in the market for a new air conditioner, you want to make sure that you get the best system to fit your needs and your budget.
Is your air conditioner on its last legs? Do you spend more time sweating and opening windows in your home than you do enjoying the fresh air? If so, then it's time to give yourself the climate control you need for a fair price. At NisAir, we offer the finest A/C installations, repairs, and maintenance in the Treasure Coast area.
You don't fully appreciate your air conditioner until the day it stops working. If you need an effective replacement of your climate control system call the professionals at NisAir. We're family owned and operated and have over 40 years of experience in the industry. We inspect your ducts, diagnose your A/C issues, and offer affordable and effective repairs or replacements that will keep your home cool and comfortable.
Reviews (17)
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Peggy Radanovich
May 19, 2022
The technician was very qualified knew what he was doing. Friendly clean the AC system and didn't try to up sell more. We like that it's a family owner and operated business. Prices are very fair. Service: A/C system maintenance
Robin Raney
Oct 19, 2021
Always reliable, on time and professional. Have used them fir over 20 years!
Kathleen Pickering
Jun 05, 2021
This family owned company knows their business! Prompt, friendly and efficient service. All techs have complete knowledge of air-conditioning systems. Phil and his team are a delight to work with! Highly recommend NisAir for any AC needs-commercial or residential. Services: AC maintenance, Installation, AC repair
A. Anter
Apr 23, 2021
Excellent service. They installed my new a/c last September. Those guys were so good and cleaned up everything. (Orlando and Abu). After the tropical storm passed I called them to come and check something. Fred was efficient and explained things to me. Office staff are very courteous, too.
Beverly Shea
Dec 20, 2020
Love Now Air Conditioning. They are the best! Better than all the rest!
Nancy Stewart
Aug 24, 2020
It was a long time since they did a maintenance fo us on a previous a/c and they also did a good job. Nancy Stewart
Kristi Trombley Keller
Aug 05, 2020
NisAir saved me when my entire AC unit broke down unexpectedly. The team was honest and very professional. I am a single mom of two toddlers and they were able to come out and quote me same day and have the unit installed the next day! They took so much stress off of my shoulders, and were very competitive on pricing and warranty. I would highly recommend this company and will be calling them again for any of our HVAC needs in the future! 5 stars and a huge THANK YOU to the entire team.
Donna M.
Jul 06, 2020
Living in Florida does require a great HVAC Company. NisAir does have quality, value, professionalism, responsiveness and of course punctuality too. Extremely knowledgeable! Our units were installed a few days ago in PGA Port St. Lucie. Thank the Lord to finally have a Company that truly cares about their customers. I would highly recommend you call NisAir. Have a blessed day.
Valerie Bomar
Sep 17, 2019
I've been using Nis Air for 12 years. They are knowledgeable and fast. I highly recommend. Do not hesitate to call them. Very honest. Thank you Nis Air you are a true 5 star company.
Albert Lucci
Apr 20, 2019
Our fifteen year-old Lennox A/C Unit in the main house malfunctioned on May 6, 2019. We never used NISAir A/C before. They were actually recommended by a competitor I had been using who did not carry Lennox. We had the distinct pleasure of meeting sales rep, Scott F. who came to our home the same day I called. Scott was most professional and honest in his evaluation and recommendation for a replacement unit and did not attempt to "oversell" me.

He promised me that if I liked the efficiency of the Lennox Unit that needed to be replaced (which I did express to him) than I would love the new Unit he recommended. Scott's proposal price not only beat two other proposals, his promise about the efficiency of the new Unit exceeded my expectation. The unit is absolutely outstanding. Before I agreed to his proposal, I did insist that Scott send out his A-Team for installation and he agreed. James L. and his team came out the next morning to install the new unit.

They were an extremely professional, efficient and courteous team who took great pride in the perfection of their work. It was truly refreshing and encouraging to experience this level of work ethic and professional excellence. I strongly recommend this NISAir Company from the Fort Pierce, Florida location for an outstanding experience. Al
Scott Farnham
Apr 03, 2019
I have worked for NISAIR for almost 25 years great company to work for! They have always taking care of me so I know they will take care of you!
Patricia Hetzler
Feb 09, 2019
I arrived home Monday evening and had no A/C. Called them Tuesday morning and they came out and said my coil in the air handler was bad and they would have to order one. I told them I couldn't wait a week for it to come in as I have breathing problems. They went above and beyond and found a coil and installed it this morning (Wednesday) I am so impressed with this company, they have a customer for life!
Sharon Faraci
Jan 24, 2019
Great response time! Within 1 hour I got a return phone call and 1 hour after that Nick from Nis Air was at my home. Polite, efficient and informative about future maintenance. Thank you.
Trina Gibson
Oct 20, 2018
We've had Nis Air service our Lennox system for 14 years. When it came time for replacement we chose Lennox and Nis Air. We love our new system and the service we received. Looking forward to many more years of great service.
Gary Miller
Oct 18, 2018
Both James and Chris were highly professional and meticulous. They put down protection so the floor would not be scuffed. They cleaned the area before and after the installation. The installation was Superior. They took care of problems with the old installation. Which I thought was outside of their scope. Making the system more efficient. They answered all our questions and help get the thermostat on to the wireless router. I believe they went above and beyond and would recommend this company to anyone. I will try to post a photo later.
Robert Holland
May 29, 2018
We live in Stuart and have worked with NisAir for 23 years. They've done everything from maintenance & service to system replacement and even new construction design & installation for us. Tremeondous people, crews and ownership. And somehow they not only do good work but they are often the most competitive price as well.
Steven Hsmilton
Nov 15, 2017
The people work there they know what they are doing especially the technicians