Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Key Biscayne, FL
HVAC work in Key Biscayne means servicing homes that sit a few feet above sea level, get hit with salt air every day of the year, and run their air conditioning roughly nine months out of twelve. We’re Dalton Heating & Air, a Garrison Partners company, and we handle AC repair, heat pump installation, and furnace repair across the island. If your system’s struggling or you’re planning a replacement, call (361) 306-9515 and you’ll get a live person, a straight answer, and a written price before any work starts.
Why Key Biscayne Homes Are Different
Key Biscayne is an island, and that changes everything about HVAC. The salt that carries in off the Atlantic corrodes condenser coils and fins faster than almost anywhere else in Miami-Dade. We routinely see outdoor units on Key Biscayne that are seven or eight years old but look like mainland units that have been out there for fifteen. Condensate drain lines clog more often too, since the humid island air means these systems pull gallons of moisture out of the house every day. Homes around Harbor Drive, West Wood Drive, and the Village are a mix of 1960s and 1970s concrete construction and newer builds, and the older stock often has ductwork sized for a system from three decades ago. That matters when you’re putting in a modern heat pump and expecting even cooling in every room.
Permitting here goes through the Village of Key Biscayne and Miami-Dade County, and HOA rules in communities like Towers of Key Biscayne and Ocean Club add another layer. We handle the paperwork on installs and replacements and know what the Village wants to see before the crew rolls up. The geography also means we plan dispatch carefully: there’s one causeway on and off the island, and we schedule Key Biscayne calls so a technician isn’t fighting Rickenbacker Causeway traffic at the worst possible hour.
Our Main Key Biscayne Services
Most of the calls we take from Key Biscayne homeowners are about two things: an AC that stopped cooling, and a furnace that hasn’t run all year and won’t fire when a cold front actually arrives. Here’s what each involves on the island.
AC Repair in Key Biscayne
In Key Biscayne’s salt air, the most common failures we see are corroded contactors, pitted condenser coils, blown capacitors, and clogged drain lines that trigger the float switch and shut the whole system down. A repair here usually runs $150 to $650, and we write the exact price down before we open a single panel. The fix is guaranteed in writing for a full year through our 365-Day Done Right Promise. If it fails inside that window, we come back at no charge. Details are on the dedicated page: AC Repair in Key Biscayne.

Heat Pump Installation in Key Biscayne
A heat pump makes particular sense on Key Biscayne because it handles both cooling and the short-lived cold snaps this part of Florida sees in January and February. The salt exposure means we size the unit, then spec a coastal-rated condenser and coil so you’re not replacing it early. Installation on the island matters as much as the equipment itself: proper elevation off a concrete pad, correct line-set routing, and a clean filter-dryer install. We carry the full line of major brands and give you a written fixed price before ordering anything. Read more at Heat Pump Installation in Key Biscayne.

Furnace Repair in Key Biscayne
Plenty of Key Biscayne homes still run a furnace for the few truly cold nights, and when it fails, it’s usually an igniter, flame sensor, or gas valve issue on a unit that has sat idle for months. Most furnace repairs run $150 to $700, and that number is in writing before we start. We carry common parts for the brands below, which means most furnace jobs on the island are done the same day. See Furnace Repair in Key Biscayne for the full breakdown of what’s covered.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Key Biscayne
Our technicians are factory-trained on Goodman, Rheem, York, and Daikin, among the nine major HVAC brands we service. We keep common parts for those four makes on the truck and in local stock, which keeps most Key Biscayne repairs to a single visit. You can see the full lineup on our brands page.
Pricing for HVAC Company in Key Biscayne, FL
| Service | Typical range in Key Biscayne |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
| Capacitor replacement | $150 – $350 |
| Contactor replacement | $150 – $300 |
| Condensate drain clearing | $150 – $300 |
| Refrigerant recharge (per lb, includes leak check) | $150 – $450 |
| Thermostat replacement | $180 – $350 |
| Blower motor replacement | $350 – $650 |
| Heat pump installation | $3,500 – $7,500 |
Salt corrosion is the biggest price driver on Key Biscayne: a coil that’s been eating ocean air for eight years costs more to replace than the same part in a drier zip code, and we’re honest about that before the work, not after. Every quote is a written, line-item price, and it does not change at the door.
Neighborhoods We Serve in Key Biscayne
We cover all of Key Biscayne, from the Village and its mid-century homes to the towers and townhome communities further south.
- Village of Key Biscayne
- Harbor Drive area
- Towers of Key Biscayne
- Ocean Club and Grand Bay
- West Wood Drive and Buttonwood
Typical response time for a Key Biscayne call is same-day for repairs, though installs are scheduled with a set date and written price ahead of time.
Service Area – Cities Near Key Biscayne
Our Key Biscayne crews also cover the surrounding communities. We serve Miami Beach, FL, Miami, FL, Coral Gables, FL, and Hialeah, FL. Dispatch and scheduling are coordinated from our Miami (South FL) office, and technicians travel to Key Biscayne daily.
Serving Key Biscayne, FL - Our Local Coverage Area
We’re based in the Key Biscayne area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Key Biscayne
Same-day for most AC and furnace repairs on Key Biscayne. We schedule island calls around Rickenbacker Causeway traffic so the crew is not burning an hour in the car. Call (361) 306-9515 and we’ll give you a window, not a vague “sometime tomorrow.”
Yes, the Village of Key Biscayne and Miami-Dade County require permits for installation and replacement work. We pull the permit, schedule the inspection, and handle the paperwork. It’s included in the written price you get upfront.
We do, and we work within HOA rules on access, hours, and equipment placement. If your community has specific requirements for condenser location or noise limits, tell us when you call and we’ll spec the job accordingly from the start.
If your AC or furnace is acting up on Key Biscayne, call Dalton Heating & Air at (361) 306-9515. You’ll get a written price before any work starts, a technician who shows up on time and leaves the site clean, and a repair guaranteed in writing for a full year.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Key Biscayne Customers Say
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.







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