“My highest recommendations for Devon and the Maritime Air team — thorough, honest, and on time. They explained everything in plain language and didn't push any unnecessary upsells.”
Spencer Fuller
May 2026
St. Lucie County · Treasure Coast
AC Repair & HVAC Installation in Port St. Lucie, FL
Maritime Air Co. is Port St. Lucie's family-owned air conditioning contractor — delivering same-day AC repair, energy-efficient installations, duct cleaning, and salt-air-resistant maintenance to homes from St. Lucie West to the river. Class-A licensed, fully insured, and rated 5.0 stars on Google.
License # CAC1824400 5.0 · 37 Google Reviews ZIPs: 34952, 34953, 34983, 34984, 34986, 34987
Why Treasure Coast Trusts Us
Reasons Homeowners & Captains Pick Maritime Air Co.
5-Star Rated
Verified Google reviews
Licensed & Insured
Class-A CAC1824400
Family Owned & Operated
Treasure Coast residents
Residential · Commercial · Marine
Full-spectrum HVAC
Written Estimates
Approved before work begins
Photo-Documented Work
Warranties registered for you
Chamber of Commerce
St. Lucie County member
Port St. Lucie HVAC Services
Trusted Air Conditioning Services for Port St. Lucie Homeowners
AC Repair in Port St. Lucie
Same-day diagnostics for failed compressors, refrigerant leaks, frozen coils, and thermostat issues.
AC Installation in Port St. Lucie
Right-sized, energy-efficient systems engineered for Florida humidity and salt-air corrosion.
Duct Cleaning in Port St. Lucie
Remove dust, pollen, pet dander and mold for healthier indoor air across coastal homes.
Maintenance Plans in Port St. Lucie
Captain's Comfort Club — twice-a-year tune-ups, priority dispatch, and warranty-keeping service.
Local Climate
What Port St. Lucie's Climate Means for Your HVAC
Port St. Lucie sits in USDA zone 10a with a humid subtropical climate. Summer dewpoints regularly exceed 75°F from June through September, our AC systems run 12–16 hours per day, and August indoor latent loads can double a home's design moisture removal requirement. Homes within 3 miles of the Atlantic or Indian River Lagoon also face chloride-laden salt air that destroys uncoated aluminum condenser coils in 5–8 years. Equipment selection, coil coatings, and dehumidification strategy in Port St. Lucie are not the same as inland Florida — and they shouldn't be priced or installed the same way either.
Common HVAC Issues
The Most Common HVAC Problems We See in Port St. Lucie
After thousands of service calls across the Treasure Coast, these are the failures we diagnose week after week in Port St. Lucie homes. If any of them sound familiar, call us before they turn into a compressor or coil replacement.
Frozen evaporator coils
Florida humidity overworks under-maintained systems — a common Port St. Lucie call. We diagnose airflow restrictions, dirty filters, and low-charge issues that cause icing.
Compressor failures from voltage spikes
Summer storms and FPL surges destroy compressors across Port St. Lucie. We install whole-system surge protectors and source warranty-replacement Trane, Carrier, and Goodman scroll compressors fast.
Refrigerant leaks at coil joints
Salt air corrodes aluminum coil fins on homes east of US-1. We pressure-test with nitrogen, electronically leak-detect, and re-braze or replace coils with coastal-grade Heresite-coated alternatives.
Sky-high humidity (60%+ indoor RH)
Oversized or single-stage systems short-cycle and never pull moisture out. We right-size with Manual J, install variable-speed equipment, and add dedicated dehumidification when needed.
Mold and mildew on supply registers
Standing condensation, dirty blower wheels, and biofilm in the drain pan all show up as black streaks on ceilings. We sanitize coils, replace drain pans, and add UV-C lights.
Sudden FPL bill spikes
A failing capacitor, dirty condenser coil, or partial duct collapse can quietly add $80–$150/month. Our $89 tune-up catches all three before they snowball.
Local Expertise
Why Port St. Lucie Homes Need a Coastal HVAC Specialist
Salt-Air Corrosion on East-Side Homes
Port St. Lucie homes near the river and Hutchinson Island deal with relentless salt-air corrosion on outdoor condenser coils. We apply marine-grade protective coatings and stock OEM coastal coils for fast repair.
Humidity-Driven Air Quality Issues
High humidity and frequent rain push moisture into ducts and attics, fueling mold growth and allergens. Our IAQ techs run moisture diagnostics and offer UV, dehumidifier, and duct cleaning solutions.
Tradition & St. Lucie West New Builds
Newer master-planned communities often ship with under-sized or builder-grade systems. We right-size replacements using Manual J calculations for true Florida efficiency.
Neighborhoods We Serve in Port St. Lucie
- St. Lucie West
- Tradition
- Tesoro
- PGA Village
- The Reserve
- Tradition Lakes
- Veranda Falls
- Sandpiper Bay
- Tradition Square
- River Park
- Lake Charles
- Torino
Marine HVAC in Port St. Lucie
Dockside Marine Air Conditioning Service for Port St. Lucie Boaters
Serving Sandpiper Bay Marina, Club Med Sandpiper Bay, North River Shores Boat Ramp, St. Lucie River private docks and every private dock in Port St. Lucie. Class-A licensed and EPA 608 certified — we diagnose, repair, and replace every major marine HVAC brand with the saltwater corrosion expertise your vessel demands.
Marine AC Repair
Full-spectrum dockside marine HVAC service & emergency response.
View serviceCruisair Repair
Self-contained, split-gas, and chilled-water Cruisair systems.
View serviceDometic Marine AC Repair
Dometic Turbo, Emerald, SMX controls, and chiller diagnostics.
View serviceMarine Chiller Systems
Chilled-water yacht HVAC, fan-coil units, zone controls.
View serviceBarnacle Buster Service
Closed-loop seawater coil descaling to restore cooling capacity.
View serviceMarine Water Pump Replacement
March, Cruisair & Headhunter raw-water pumps swapped dockside.
View serviceBoat AC Down?
Same-day dockside response in Port St. Lucie.
Why Maritime Air Co.
Why Port St. Lucie Homeowners Choose Maritime Air Co.
Class-A Licensed (CAC1824400)
Florida Class-A Certified Air Conditioning Contractor with no job-size limitations — residential, commercial, and marine.
Family-owned, Treasure Coast based
Local Port St. Lucie shop. You speak to the owner, not a national call center.
5.0 ★ on Google + Nextdoor Fave 2025
Hundreds of neighbors trust us. Read every review before you book — we publish them all, good and bad.
10-year parts & labor warranty
Standard on qualifying new installs. We register every system the day it's commissioned.
Marine HVAC specialists
Cruisair, Dometic, Webasto chillers and air handlers. Dockside service across every Treasure Coast marina.
Upfront flat-rate pricing
You approve the price before we turn a wrench. No surprise add-ons, no commission-driven tech upsells.
Our Work
View all projects Recent Port St. Lucie Area Projects
A sample of installs and repairs we've completed near Port St. Lucie.
Coil Cleaning
Evaporator Coil Pull & Deep Clean — Port St. Lucie
Port St. Lucie, FL · Residential Split System
Trane Installation
Trane XR16 + Heat Pump Installation — Port St. Lucie
Port St. Lucie, FL · Trane XR16
Commercial HVAC
Commercial Rooftop HVAC Repair — Port St. Lucie Medical Plaza
Port St. Lucie, FL · Carrier 48TC Rooftop Units
Reviews
What Port St. Lucie Customers Say
Real Google reviews from Treasure Coast homeowners, business owners, and captains.
5.0
37 Google Reviews
Google
“Devon has provided thorough maintenance and excellent service. Truly family-owned care — they treat your home like it's their own. Highly recommend for Treasure Coast homeowners.”
Oh Canada
March 2026
“Working with Devon on my HVAC system was a great experience from start to finish. Fair, clean install, and the system has been running perfectly through Florida summer heat.”
David Alker
February 2026
FAQ
Port St. Lucie HVAC Questions, Answered
How fast can you get to my home in Port St. Lucie for AC repair?+
We offer same-day service across Port St. Lucie — typically within 2–4 hours for emergency calls. Our Port St. Lucie shop is minutes from I-95 and US-1, giving us fast access to every Port St. Lucie ZIP code.
Do you service new construction homes in Tradition and Tesoro?+
Yes. We install and service high-efficiency HVAC systems in newer Port St. Lucie communities including Tradition, Tesoro, PGA Village, Tradition Lakes, and Veranda Falls.
What's the average cost of AC installation in Port St. Lucie?+
Most Port St. Lucie homes (1,500–2,500 sq ft) fall in the $5,500–$9,800 range for a complete high-SEER2 system, including permits and warranty. We provide free in-home estimates with no upsells.
Do you offer maintenance plans for Port St. Lucie homeowners?+
Yes — our Captain's Comfort Club includes two annual tune-ups, priority dispatch, no overtime fees, and 15% off repairs. Designed specifically for the humidity and salt-air conditions of St. Lucie County.
Knowledge Graph
Related HVAC Diagnostics
Every honest repair starts with the same measurements. These are the diagnostic guides our technicians use in the field — read them before you accept a diagnosis.
Diagnostic
Static Pressure: What It Is and Why It Matters
Static pressure is the resistance your blower has to overcome to move air through the duct system. Total External Static Pressure (TESP) is …
Read diagnosticDiagnostic
Delta-T: Return-Air Minus Supply-Air
Delta-T is the temperature drop across the indoor coil — return-air temperature minus supply-air temperature. A healthy Florida system runs …
Read diagnosticDiagnostic
Superheat: Reading Your Evaporator's Health
Superheat is degrees Fahrenheit that refrigerant vapor sits above its saturation temperature at the suction pressure. On a fixed-orifice sys…
Read diagnosticDiagnostic
Subcooling: The TXV Charge Measurement
Subcooling is degrees Fahrenheit that liquid refrigerant sits below its saturation temperature at the liquid-line pressure. On a TXV system …
Read diagnostic