🏆 31 Years of Excellence
Expert Air Conditioning Services in Port St Lucie, FL
24/7 Emergency AC Repair | Same-Day Service Available
Port St Lucie’s #1 rated HVAC company serving the Treasure Coast for 31 years. Fast, reliable air conditioning installation, emergency AC repair, and preventative maintenance for all makes and models including Trane, Rheem, Lennox, Carrier, Mitsubishi, and Goodman. Licensed & insured (CAC1817316).
31+
Years Experience
★★★★★
125+ Google Reviews
24/7
Emergency
Servicing All Major Brands
Trane • Rheem • Lennox • Carrier • Mitsubishi • Goodman
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
OUR SERVICES
Complete HVAC Solutions in Port St Lucie
Professional air conditioning and heating services for residential and commercial properties throughout the Treasure Coast
Air Conditioning
Expert AC installation, repair, and replacement for all major brands. Our EPA-certified technicians keep your home cool with fast, same-day service and honest, upfront pricing.
- AC Installation
- AC Repair
- AC Replacement
- AC Maintenance
- Emergency AC Service
Heating Systems
From heat pumps to furnaces, we install and repair heating systems that keep your home comfortable through every Florida cold snap, with reliable, on-time service.
- Heater Installation
- Heater Repair
- Heat Pump Service
- Furnace Maintenance
Maintenance Plans
Routine tune-ups prevent costly breakdowns and extend system life. Our seasonal maintenance plans keep your AC running efficiently and lower your energy bills year-round.
- AC Tune-Ups
- Seasonal Tune-ups
- Preventive Maintenance
- System Inspections
- Filter Replacements
Indoor Air Quality
Breathe cleaner, healthier air with whole-home purification, UV light systems, dehumidifiers, and advanced filtration that reduce allergens, humidity, and indoor pollutants.
- Air Purification
- UV Light Systems
- Dehumidifiers
- HEPA Filtration
- Humidity Control
Why Choose Subzero Cooling & Heating?
With 31 years of experience serving Port St Lucie and the Treasure Coast, we specialize in both residential and commercial HVAC systems. Our certified technicians are trained to service all major brands including Trane, Rheem, Lennox, Carrier, Mitsubishi, and Goodman.
We Service All Major HVAC Brands in Port St Lucie
Expert technicians trained on all makes and models of air conditioning systems
Trane
Rheem
Lennox
Carrier
Mitsubishi
Goodman
York
American Standard
Bryant
Don’t see your brand? We service it too! Contact us for more information.
How It Works
Getting your AC fixed is easy with Subzero Cooling & Heating
1
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.
2
Schedule Your Service
We offer same-day and emergency appointments. Choose a time that works for your schedule – evenings and weekends available.
3
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.
4
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
AC Repair & HVAC Service Throughout the Treasure Coast
31 years of trusted air conditioning service in your community • ⭐ 4.9 Stars • 125+ Reviews
Port St Lucie
Saint Lucie County
As Port St Lucie’s premier HVAC company for 31 years, we’ve serviced thousands of homes in neighborhoods including Saint Lucie West, Tradition, and PGA Village. Our local technicians know PSL’s unique climate challenges.
Zip Codes: 34952, 34953, 34983, 34984, 34986, 34987, 34988
Fort Pierce
Saint Lucie County
Serving Fort Pierce and Fort Pierce South for over three decades, Subzero provides expert AC service to historic downtown, Indrio, and waterfront communities, with specialized coastal maintenance programs for salt air.
Zip Codes: 34945, 34946, 34947, 34948, 34949, 34951, 34954
Stuart
Martin County
Stuart homeowners trust Subzero for reliable AC service in downtown Stuart, Sewall’s Point, and Rio. From historic homes to modern waterfront properties, we service all makes with expertise in high-efficiency systems and smart thermostats.
Zip Codes: 34994, 34995, 34996, 34997
Jensen Beach
Martin County
Jensen Beach’s coastal climate demands reliable AC service. We’ve kept Jensen Beach homes cool since 1993, specializing in salt-resistant systems and humidity control. Emergency service available 24/7.
Zip Codes: 34957, 34958
Palm City
Martin County
Palm City’s luxury homes deserve premium HVAC service. We specialize in multi-zone systems, whole-home dehumidification, and high-end brands like Trane, Carrier, and Mitsubishi for Martin Downs, Monterey, and all Palm City communities.
Zip Codes: 34990, 34991
Port Salerno
Martin County
Port Salerno’s fishing village atmosphere meets expert HVAC service. We understand the unique needs of waterfront properties and boat-access homes, available 24/7 for emergency AC repair throughout Port Salerno and Manatee Pocket.
Zip Codes: 34992
Hobe Sound
Martin County
From Hobe Sound’s pristine beaches to Jonathan Dickinson State Park area homes, Subzero delivers expert AC service. We specialize in energy-efficient systems plus preventative maintenance for Florida’s year-round heat.
Zip Codes: 33455, 33475
Indiantown
Martin County
Indiantown residents rely on Subzero for fast, affordable AC service. We understand rural HVAC challenges and keep parts for all major brands in stock. Same-day service available throughout Indiantown and Booker Park.
Zip Codes: 34956
Don't See Your City Listed?
We serve the entire Treasure Coast area! If you’re in Saint Lucie County or Martin County, we can help. Call now to confirm service to your location. 24/7 Emergency Service • Same-Day Appointments • Free Quotes
What Our Customers Say
Trusted by homeowners throughout the Treasure Coast
Flexible Financing Options
Make your home comfort affordable with our special financing offer
0% Interest
for 36 Months
For Qualified Buyers
No Interest Charges
Pay 0% interest when paid in full within 36 months
Quick Approval
Fast and easy application process with instant decisions
Manageable Payments
Spread the cost over 36 months with affordable monthly payments
No Hidden Fees
Transparent terms with no surprise charges
Wells Fargo Home Projects
Finance your new air conditioning system, heating installation, or HVAC upgrade with the Wells Fargo Home Projects® credit card.
Example: For a $10,800 AC installation, pay just $300/month for 36 months with 0% interest*
- New AC installation
- System replacements
- Major repairs and upgrades
- HVAC equipment and installation
*Subject to credit approval. Minimum monthly payments required. 0% promotional APR for 36 months. Interest will be charged from the purchase date if the promotional balance is not paid in full within 36 months. Minimum interest charge is $1. Offer valid for qualified buyers through Wells Fargo Home Projects® credit card. See store for complete details. License #CAC1817316.