About Subzero Cooling & Heating

Your trusted Port St Lucie HVAC partner since 1994

Your Trusted HVAC Partner Since 1994

For over 31 years, Subzero Cooling & Heating has been the premier choice for air conditioning and HVAC services throughout Port St Lucie, Florida and the entire Treasure Coast area.

31 Years Experience

Trusted HVAC experts since 1994

Licensed & Insured

Fully certified technicians

24/7 Emergency Service

Available when you need us most

Customer Satisfaction

100% satisfaction guarantee

How It Works

Getting your AC fixed is easy with Subzero Cooling & Heating

Call or Request a Quote

Contact us 24/7 at (772) 344-3700 or fill out our online form. We respond immediately to all service requests and emergencies.

Schedule Your Service

We offer same-day and emergency appointments. Choose a time that works for your schedule – evenings and weekends available.

Expert Technician Arrives

Our licensed, EPA-certified technician arrives on time with a fully-stocked truck. We diagnose the issue and provide upfront pricing before any work begins.

Job Completed Right

We fix your AC right the first time using quality parts and proven techniques. You get a warranty on all work and 100% satisfaction guarantee.

Ready to Get Started?

Join thousands of satisfied customers in Port St Lucie and the Treasure Coast

What Our Customers Say

Trusted by homeowners throughout the Treasure Coast

      EXCELLENT  
   Based on 143 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Fidelina Palestis 
 
 
 
 Trustindex verifies that the original source of the review is Google. If you’re looking for a company that cares and does exactly what they say or advertise, Subzero Cooling is the company. We have been blessed to receive above and beyond service from both Jeff and Natalie. Try them you will never regret it. 💯 Recommend them 🤗🤗
  
 
      Posted on Google  
   
   Stefano Riina 
 
 
 
 Trustindex verifies that the original source of the review is Google. Jeff is the best.... There is no better.  Fair priced
  
 
      Posted on Google  
   
   Debra Ammons 
 
 
 
 Trustindex verifies that the original source of the review is Google. Jeff did a great job today. We added ac to our garage. Very reasonable price.
  
 
      Posted on Google  
   
   DLGaffer63 Smith 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have been a customer of Sub Zero since the beginning of time and before. We had family coming into town for Thanksgiving and as it always goes our heat pump for the hot tub failed, I called Jeff and he was on the spot that afternoon to fix it. Happy family, happy Thanksgiving, thanks SubZero
  
 
      Posted on Google  
   
   JW Wohlever 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great job! Great Service!
  
 
      Posted on Google  
   
   Deborah Gelinas 
 
 
 
 Trustindex verifies that the original source of the review is Google. Love this company, so professional and friendly
  
 
      Posted on Google  
   
   Audrey Snuggs 
 
 
 
 Trustindex verifies that the original source of the review is Google. Absolutely the BEST👍💯
  
 
      Posted on Google  
   
   Rosemary Jones 
 
 
 
 Trustindex verifies that the original source of the review is Google. Cleaned drain of zooglia
  
 
      Posted on Google  
   
   Mary Lucia 
 
 
 
 Trustindex verifies that the original source of the review is Google. Although I am a fairly new customer with Subzero, I have to say they have exceeded all my expectations with their service, in meeting my needs, with their expertise and   friendly manner.
  
 
      Posted on Google  
   
   Jesus Casales 
 
 
 
 Trustindex verifies that the original source of the review is Google. Jeff and Natalie really helped me with my blower replacement. Also fixed a drainage issue in my drain line of the A/C. Truly awesome service and experience. I highly recommend them to anyone who needs A/C service. Update: Aug 2026 another successful service call during this heat advisory.  Thanks again Jeff.
  
 
  
  
 
     Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more