HVAC Services in Port St Lucie & the Treasure Coast

Complete HVAC services for Port St. Lucie & the Treasure Coast

Subzero Cooling & Heating has provided expert HVAC services across Port St. Lucie and the Treasure Coast for 31 years. Whether you need a quick AC repair, a full system installation, seasonal maintenance, or help with your ductwork and indoor air quality, our licensed technicians handle every part of your home comfort system.

Our HVAC services at a glance

• AC Repair — fast, reliable repairs for every make and model, with 24/7 emergency service.
• AC Installation — energy-efficient new systems sized correctly for the Florida climate.
• AC Maintenance — tune-ups that extend system life and prevent breakdowns.
• Heating Services — heat pump repair and installation for cool Treasure Coast nights.
• Ductwork Services — duct repair, sealing, and installation for better airflow and efficiency.
• Ductless Mini-Splits — zoned comfort for additions, garages, and older homes.
• Indoor Air Quality — filtration, purification, and humidity control.

Why homeowners choose Subzero for HVAC services

For three decades, Treasure Coast families have trusted Subzero for honest, dependable HVAC services. We give upfront pricing before any work begins, employ licensed and background-checked technicians (Florida license #CAC1817316), and back our work with a satisfaction guarantee. We service every major brand and offer flexible financing to keep comfort affordable, and we help you choose ENERGY STAR® certified systems that lower your monthly energy bills.

HVAC services throughout the Treasure Coast

We provide HVAC services in Port St. Lucie, Fort Pierce, Stuart, Jensen Beach, Palm City, Port Salerno, Hobe Sound, and Indiantown. Ready to get started? Request your free quote today.

Frequently asked questions about our HVAC services

Do you offer emergency HVAC service? Yes — we provide 24/7 emergency HVAC services across the Treasure Coast, because cooling and heating problems don’t wait for business hours.

Do you service all brands? Yes. Our technicians repair and install all major HVAC brands, and we help you choose the right system when it’s time to replace.

Do you offer financing? Yes. We offer flexible financing on new installations and major repairs so you can restore comfort without straining your budget.

What areas do you serve? We provide HVAC services in Port St Lucie, Fort Pierce, Stuart, Jensen Beach, Palm City, Port Salerno, Hobe Sound, Indiantown and the surrounding Treasure Coast communities.

Are your technicians licensed and insured? Yes. Subzero Cooling & Heating is fully licensed and insured (FL License CAC1817316), and our technicians are EPA-certified to handle refrigerants safely and to code.

Do you offer HVAC maintenance plans? Yes. Regular tune-ups catch small problems before they turn into breakdowns, keep your system running efficiently in the Florida heat, and help protect your equipment warranty. Ask us about a maintenance plan that fits your home.