Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal 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.
Get your free estimateHVAC Company in Olympia Heights, FL
Coldharbour Heating & Air is an HVAC company working throughout Olympia Heights, FL, where most of the homes were built between the 1950s and 1970s and were not designed for the cooling loads we deal with today. The single-story concrete block and CBS construction that dominates this area holds heat differently than newer wood-frame homes, and the humidity in Olympia Heights pushes AC systems harder than the temperature alone would suggest. We repair and install systems in Olympia Heights every week, and the jobs here tend to share a pattern: older ductwork, tighter mechanical closets, and a real need for dehumidification. If your system is struggling, call us at (850) 810-1910 and we’ll walk you through what’s going on.
Why Olympia Heights Homes Are Different
Olympia Heights sits in a subtropical pocket of Miami-Dade County where salt-laden coastal breezes drift inland and settle on outdoor condensing units. That salt plus the near-constant heat from May through October means condenser coils in Olympia Heights corrode faster than they do even a few miles north. We regularly see units that are mechanically fine but have coils so pitted and oxidized that heat transfer has dropped to the point where the system can’t keep up. The humidity here is just as hard on the indoor side. Ductwork in Olympia Heights homes, especially the original galvanized runs in 1960s ranchers, grows mold and mildew faster than in drier parts of Florida, so aggressive dehumidification matters as much as cooling capacity.
The housing stock itself creates the second set of challenges. Most Olympia Heights homes are single-story concrete block or CBS construction on slab foundations with minimal attic space. That means there is no basement to run new ductwork through and often no easy path to add a return in a back bedroom. When a homeowner here needs a real fix, not just a patch, the conversation often turns to high-velocity mini-duct systems or ductless mini-splits, both of which fit the architecture better than a traditional forced-air retrofit. On Bird Road and Miller Drive corridors especially, we also run into original 100-amp electrical panels that must be upgraded before any high-efficiency heat pump or mini-split can be installed. Homeowners in Olympia Heights have learned to expect that panel conversation, and we try to flag it early so there are no surprises in the quote.
Styles & brands we work with







Our Main Olympia Heights Services
Most calls from Olympia Heights homeowners come down to two things: an AC that stopped cooling in the middle of a humid afternoon, or a furnace that won’t light on one of the rare cold snaps. We also do a steady number of full system replacements for homes that have outgrown their original equipment.
AC Repair in Olympia Heights
AC repair in Olympia Heights usually means working on a system that has been running nearly nonstop for months. We find failed capacitors, refrigerant leaks, corroded contactors, and clogged condensate lines more often than anything else. The salt air here accelerates corrosion on electrical connections inside the outdoor unit, so a system that worked fine in April can fail in August for a reason that has nothing to do with age. We stock parts for most major brands on the truck, and we’ll give you a written price before any work begins. AC Repair in Olympia Heights covers our full repair process and what to expect on the day of the visit.

Furnace Repair in Olympia Heights
Furnace repair is less of a year-round concern in Olympia Heights, but when the temperature drops into the 40s, a lot of homeowners discover their furnace has been sitting unused for nine months and will not start. The most common culprits are failed igniters, dirty flame sensors, and inducer motors that have seized from disuse in the humid air. Our technicians service furnaces from York, Daikin, Bryant, American Standard, and the other major brands, and every repair comes with the 365-Day Done Right Promise in writing. Furnace Repair in Olympia Heights explains the guarantee and the repair process in detail.

AC Installation in Olympia Heights
AC installation in Olympia Heights is rarely a simple swap. Most of the homes here were built with undersized ductwork and no central air at all originally, so a new system often means a full duct redesign or a switch to a high-velocity or ductless configuration. We handle the load calculation, the equipment selection, and the coordination with Miami-Dade’s wind-load and energy code requirements. The 100-amp panel issue on Bird Road and Miller Drive corridors is something we will flag during the estimate, not after the crew shows up. AC Installation in Olympia Heights walks through the process, the equipment options, and the written fixed price.

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 Olympia Heights
Our technicians are trained to work on nine major residential HVAC brands, including York, Daikin, Bryant, and American Standard. We keep common repair parts for those brands stocked locally so most repairs in Olympia Heights are completed on the first visit. For less common parts, our Miami (South FL) office coordinates delivery quickly. See our brands for the full list of equipment we service.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Olympia Heights, FL
| Service | Typical range in Olympia Heights |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
What pushes an Olympia Heights job toward the top of those ranges is usually the condition of the ductwork and the age of the electrical panel. A corroded coil on a condenser is a straightforward repair, but a full duct replacement on a 1960s slab home with minimal attic space is a different kind of job. Whatever the scope, you will receive a written price before the work starts, and that price does not change at the door.
Neighborhoods We Serve in Olympia Heights
Our crews work throughout Olympia Heights and are typically able to reach most of the area within a short drive. We know the ranch-heavy side streets and the busier Bird Road and Miller Drive corridors well enough to plan our arrival windows realistically.
- Bird Road corridor
- Miller Drive corridor
- West Olympia Heights
- Olympia Heights central
- South Olympia Heights
Service Area – Cities Near Olympia Heights
Beyond Olympia Heights, our crews also cover nearby communities across Miami-Dade County. We routinely work in Miami, FL, Hialeah, FL, Miami Beach, FL, and Fountainebleau, FL. If you are not sure whether we reach your address, call us and the live person who answers will confirm it.
Serving Olympia Heights, FL - Our Local Coverage Area
We’re based in the Olympia Heights 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 Olympia Heights
We can usually reach most Olympia Heights addresses the same day you call, and we give you a firm arrival window rather than an open-ended estimate. Call (850) 810-1910 and the person who answers is a live dispatcher, not a voicemail tree, any hour of the day or night.
Most AC installations and some repairs in Olympia Heights require permits under Miami-Dade code, and we handle the paperwork as part of the job. We coordinate directly with the county so you do not have to manage the permitting process yourself.
Yes, we cover all of Olympia Heights, from the Bird Road corridor to Miller Drive and the residential streets in between. Our scheduling is coordinated from our Miami (South FL) office, and crews are dispatched locally to keep response times short. If you want to confirm a specific street, call (850) 810-1910.
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 Olympia Heights Customers Say
"New mini split for the addition. Clean install, on time two days running, and the price matched the written quote to the dollar."
- Yvonne Prewitt"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood