A replacement is not one box swapped for another. A/C Now sizes every residential system from a room-by-room load calculation, matches the air handler and condenser as a rated pair, and commissions the finished install — static pressure, refrigerant charge and airflow measured at handover rather than estimated.
Most premature failures on the Treasure Coast trace back to the installation rather than the equipment. An oversized system short-cycles and never runs long enough to pull humidity out of the air, which is why a house can feel clammy while the thermostat says it reached the setpoint. Leaky duct runs put conditioned air into the attic. An incorrect refrigerant charge quietly costs efficiency for the whole life of the unit. We measure each of those before we leave and hand you the readings, so the system you paid for is the system you actually have.
🌧️ Climate Reality Check: High Water Table & Humidity Control
Heavy summer downpours and high local water tables create extreme indoor humidity loads. We size variable-speed inverter equipment and elevated hurricane pads so the system keeps up with the humidity load, and the outdoor unit sits above standing water.
A/C Now LLC is a locally owned, licensed HVAC contractor (License #CAC1820068) serving the region from Palm Beach Gardens and Jupiter to Stuart and Port St. Lucie. Call (772) 521-3568 for same-day service across the Treasure Coast.
AC & Heating Repairs
What is AC repair in Port St. Lucie, FL? AC repair is the professional diagnosis and restoration of a residential or commercial air conditioning system by licensed, certified technicians. A/C Now LLC services all major brands — Carrier, Trane, Lennox, Rheem, Goodman — across Martin County and St. Lucie County, FL.
When your air conditioning malfunctions, getting it restored fast is our top priority. We offer a full range of cooling services, from quick diagnostic calls and minor component fixes to complete system rebuilds. Our technicians are fully equipped to resolve issues on the spot.
- Same-Day Service (Mon–Fri)
- Thermostats, Compressors, & Fan Motors
- Refrigerant Leak Detection & Recharging
AC Installation & Replacement
Upgrade to a high-efficiency HVAC system and cut your monthly energy bills. We custom-size AC replacements based on your home's square footage, duct configuration, and shade levels, for more uniform cooling across all rooms.
- Free New System Estimates
- Leading SEER-rated Brands
- Complete Factory Warranties & Duct Checks
HVAC Preventative Maintenance
South Florida's heat keeps your air conditioner running most of the day. A dirty coil and a drifted refrigerant charge make it work harder and cost more to run. Our high-precision tune-ups keep your unit running cleanly, stop breakdown emergencies before they happen, and protect your manufacturer’s warranty.
- Coil Cleaning & Drain Line Flushing
- Electrical Connection & Capacitor Audits
- Priority Call Scheduling & Repair Discounts
The Snowbird Home Watch AC Guide
Leaving your Florida home vacant for the hot, humid summer months carries significant risk if your HVAC system fails. Elevated indoor relative humidity (above 60%) quickly fosters mold growth, potentially causing thousands of dollars in property damage.
Our specialty Snowbird Pre-Departure Inspection includes clearing condensate lines to prevent blockages, setting programmable thermostats to vacant humidity levels (typically 78°F or humidistat settings), and installing secondary safety float switches. We also coordinate with local home-watch services to verify system status, ensuring total peace of mind while you are away.
Maintenance Comfort Shield Protection Plans
Prevent expensive system breakdowns, save 15% on all repairs, and waive your diagnostic fee when we complete the repair with our annual protection plans starting at just $155/year.
HOA Condenser Screening & Clearances
Are you installing decorative fencing or matching landscape shrubs? Review regional Treasure Coast clearance rules to keep your system code-compliant and running at peak performance.
Clearance Compliance Guide
Climate & Comfort Add-ons
Not every space fits a standard central system. We install heavy-tonnage vertical units for larger homes and condo towers, and ductless mini-splits that cool a garage, addition, or sunroom with no new ductwork.
Indoor Air Quality
Improve air quality with HEPA filters, UV sanitizing lamps, and whole-house dehumidifier installations.
Storm-Season Tie-Downs
Wind-rated pads, anchor straps and elevated stands that keep your outdoor unit secured through storm season.
Pool Heat Pumps
Swim comfortably year-round with professional heat pump sales, efficient installations, and seasonal service.
Duct Cleaning
Purge mold, pollen, and pet dander from your ducts using negative-pressure vacuums and sanitizing foggers.
Ventilation Cleanliness Simulator
Home ventilation ducts act as the lungs of your house. Use the neglect slider below to see how dust, mold, and pet dander accumulate inside ductwork over years without cleaning, choking airflow and triggering respiratory allergies.
Buildup Controls
Dust and pet dander build up in ductwork over the years and restrict airflow.
INSIDE YOUR AIR DUCT
Quiet Comfort Decibel Soundboard
AC condensers are often located right next to pool decks, patios, or bedroom windows. Click the buttons below to hear the drastic operating noise difference between old single-stage systems and modern variable-speed inverters.
Standard Single-Stage
74 DECIBELSOperates at 100% capacity at all times. Cycles on and off with a loud contactor click followed by a harsh, continuous hum equivalent to a vacuum cleaner.
Variable-Speed Inverter
55 DECIBELSRamps up and down slowly. Matches exact cooling load needs of the house, so you hear it far less than a single-stage unit.
Frequently Asked Questions — HVAC Services on the Treasure Coast
Why does system sizing matter more in Florida than in other climates?
Because the load here is driven by humidity as much as by heat. An oversized unit satisfies the thermostat quickly and shuts off before it has removed much moisture, so the house reads the right temperature and still feels damp. A correctly sized system runs longer, gentler cycles and dehumidifies while it cools.
What do you measure when you commission a new residential system?
Total external static pressure across the air handler, supply and return airflow, refrigerant charge by superheat or subcooling depending on the metering device, and the temperature split across the coil. Those four tell you whether the equipment can actually deliver its rated capacity in your ductwork.
What should I expect on a service call?
The A/C Now Team is comprised of certified technicians who apply discipline, accountability, and attention to detail to every call. Technicians arrive in fully stocked trucks, deliver written flat-rate estimates before any work begins, and back all installations with factory warranties. No subcontractors on your service call, no surprises — just precise, dependable service.
Does A/C Now LLC offer same-day AC repair?
Yes. A/C Now LLC offers same-day AC repair Monday through Friday for calls received before 5 PM ($89 diagnostic; $39 for Comfort Shield members). After 5 PM weekdays and on Saturdays & Sundays (8 AM–7 PM), our on-call technicians provide emergency service ($169 diagnostic; $129 for members). Non-emergency weekend inquiries are booked for first-priority dispatch on Monday morning. Call (772) 521-3568, 8 AM–7 PM.
Is the diagnostic fee waived if I replace the system?
Yes. The standard $89 diagnostic fee is waived when the visit leads to a system replacement. Estimates on a new system are free either way. Comfort Shield members also have the diagnostic waived when a repair is completed.
What areas do you serve on the Treasure Coast?
A/C Now LLC serves the region from Palm Beach Gardens and Jupiter to Stuart and Port St. Lucie. We cover both Martin County and St. Lucie County for residential and commercial HVAC service. Call (772) 521-3568 to confirm availability in your neighborhood.
How often should I service my AC?
In Florida's hot, humid climate, HVAC systems should be professionally serviced at least twice per year — once before the summer cooling season (spring) and once before the winter heating season (fall). Twice-yearly tune-ups prevent breakdowns, extend system life, and maintain manufacturer warranties. A/C Now LLC's Comfort Shield Protection Plan starts at $155/year and includes precision cleanings.
Do you work on commercial HVAC systems?
Yes. A/C Now LLC is a licensed commercial HVAC contractor serving condo associations, HOA communities, office buildings, retail spaces, and restaurants throughout the corridor from Palm Beach Gardens and Jupiter to Stuart and Port St. Lucie. We handle rooftop package units, commercial split systems, multi-zone air handlers, and commercial preventive maintenance agreements. Learn more on our Commercial HVAC page.