Drag the unit to turn it. Tap a part to see how we fix it.
The part that failed is usually a couple hundred dollars. The visit that starts with “you need a new system” is usually the one where the tech gets paid more if you say yes. Nobody here does. We're an HVAC company in Port St. Lucie owned by a technician, and we'll tell you what actually broke. Call (772) 203-2571.
Answered 24/7. JD usually picks up himself. Sundays and holidays are billed at double time.
Google rating
Google reviews
Years labor warranty on installs
Someone answers
The owner answers
JD Harmon started this company in March 2023, and he still answers the phone and still runs service calls. Describe the noise your unit is making and you're describing it to the person who will fix it.
That isn't a slogan about small business. It's what happens when the owner is a technician. He trained as an Army air conditioning technician, a 91C, spent five years in a union apprenticeship, and worked his way up to service manager before starting this.
Army 91C
Trained as an air conditioning technician
Five-year apprenticeship
Union journeyman, then service manager
Since March 2023
Still runs service calls himself
Services
Cooling, heating, and light commercial. If the unit is down, call. If you're planning ahead, we'll come look at it.
residentialRepair, replacement, and maintenance for the system that cools the house.
Explore →
residentialWe take calls around the clock, and we'll tell you the double-time rate before we come out.
Explore →
commercialRooftop units, splits, and light commercial repair.
Explore →
residentialHeat pumps, air handlers, and heat strips for the three cold weeks.
Explore →Commercial systems
Scroll to open up a packaged rooftop unit. Each label links to the commercial service for that part.
No commission
Here's what people are actually worried about when they call somebody out. Not whether the tech can fix it. Whether the tech looks at a ten-year-old unit and sees a commission.
In a lot of shops that's exactly the math. The technician makes more when you buy more. We took it off the table. Everyone here is paid hourly, so when we say what the unit needs, that's what it needs.
“We'll look at your specific unit, give you both numbers, and let you decide.”
If a repair will hold, we say so. If it won't, you get the repair number and the replacement number side by side and you pick. Replacement runs about $7,000 to $8,000 around here. You deserve to see that against the alternative before anyone asks you to sign.
We test the circuit, the airflow, and the temperatures. Then we hand you the capacitor or walk you out to the coil. You see what we see.
Every residential install carries a 2-year labor warranty from us, plus the manufacturer's 10-year parts warranty. Most companies around here give you one year. No callback fees on warrantied work.
Right now
Tell us what it's doing. Blowing warm, not blowing at all, water on the floor, a noise that's new. Say how long it's been like that. We'll tell you what it sounds like and when we can be there.
Recent work
Every one is a real call with a photo from the driveway or the roof. The dates and the places are ours, not stock.
AC drain line cleaning, Port St. Lucie
Sep 03, 2026 · Port St. Lucie
New condenser on a fresh pad, Stuart
Sep 03, 2026 · Stuart
York system at a local business, Port St. Lucie
Aug 28, 2026 · Port St. Lucie
Trane system installation, Port St. Lucie
Aug 28, 2026 · Port St. Lucie
No-cool call, fixed same day, Stuart
Aug 28, 2026 · Stuart
AC not working, air handler wiring, Port St. Lucie
Aug 17, 2026 · Port St. Lucie
Rooftop package unit repair, Stuart
Aug 17, 2026 · Stuart
AC running but not cooling, Stuart
Aug 13, 2026 · Stuart
Reviews
4.9 stars on Google. The word that comes up most is “honest.”
4.9 ★★★★★ · 167 Google reviews
Where we work
The shop is in Port St. Lucie, and the trucks cover the whole Treasure Coast, down as far as Tequesta. Not sure whether we reach you? Call and ask. It's a short answer.
Upfront numbers
Repair and replacement, then you decide.
We show up when we said
The most common line in our reviews.
Repair first
Replace only when a repair won't hold.
Veteran-owned
You do the job right and you stand behind it.
Veteran-owned
Harmony Air is a Service-Disabled Veteran-Owned Small Business. JD came up as a 91C, an Army air conditioning technician, and the habit that stuck is simple. Do the job right, and when something goes wrong, say so and fix it.
Our story →Good to know
Licensed CAC1822339
Tell us what the unit is doing and when it started. We'll call back to set a time.
Repairs over $500 can be financed, with approved credit.
Harmony Air LLC
5173 NW Aljo Court
Port St Lucie, FL 34986
Open 24/7 · License # CAC1822339
