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 estimateFast, Reliable AC Installation Across Ojus
Installing a new air conditioner in Ojus is a different job than almost anywhere else in South Florida. Most homes here were built between the 1950s and 1970s, which means original ductwork, older electrical panels, and flat or low-slope roofs that change how a new system should be placed. A new AC installation in Ojus typically runs $3,500 to $7,500, depending on home size, duct condition, and whether the electrical panel needs upgrading. Call (754) 354-7289 and we’ll give you a written price before any work begins.
Our team knows these neighborhoods. We’ve worked in the mid-century ranches along NE 203rd St, the split-levels near W Dixie Hwy, and the low-slung houses around Highland Lakes. That local knowledge matters because the right install in an older Ojus home looks very different from a generic swap.
Why Cold Harbour Heating and Air Fort Lauderdale Is Ojus’s Preferred AC Installation Company
Homeowners in Ojus tend to be practical. Many have already dealt with a contractor who showed up late or handed over a price that mysteriously grew at the door. That’s exactly the pattern we built Cold Harbour Heating and Air around undoing. Victor Mancini, who leads our team, insists on one rule that never bends: the written price comes before a single tool comes out, and that’s the price you pay. No changes at the door, no surprise line items.
We’re part of the Kingswell network of independently owned and operated HVAC businesses, all working to the same written standards. The Kingswell Way, as we practice it in Ojus, means saying the price before the work, showing up in the window we gave you, leaving the job site cleaner than we found it, putting the guarantee in writing, and coming back if something fails. A cold harbour, by the way, was once a roadside shelter where travelers waited out bad weather. We like that name because comfort in any season is the whole job.
Every install is covered by our 365-Day Done Right Promise. If a repair connected to your new installation fails inside a full year, we come back and make it right at no charge. The guarantee is on paper, not verbal.
Styles & brands we work with







AC Replacement in Ojus
AC Replacement in Ojus usually means pulling out a unit that was installed during the Jimmy Carter or Reagan administrations. These old systems were often sized for a 2-ton load, matched to original galvanized ducts, and wired into a 100-amp panel. Swapping in a new high-efficiency 2-ton unit without checking those conditions is one of the most common installation mistakes we see in this area. A new central replacement in Ojus generally lands between $3,500 and $7,500, but duct and electrical work can push the final figure toward the upper end of that range.
Duct Inspection Before the Swap
Before we quote a like-for-like replacement, we check the ducts. Original 1960s galvanized ductwork tends to sweat heavily in Ojus humidity, which causes those ceiling stains homeowners often mistake for roof leaks. New equipment on leaky or undersized ducts will not cool evenly, no matter how high the SEER rating is.
Electrical Load Review
Modern condensers and air handlers draw more at startup than older units. A 100-amp panel that has been fine for forty years may not handle a new heat pump. We check the load before installation, and if an upgrade is needed, we tell you the cost up front.
Central Air Conditioning Installation in Ojus
Central Air Conditioning Installation in Ojus is our most frequent full-system job. These homes have the footprint for ducted systems, but many still run the original single-zone layout with one return in a hallway. That is why some rooms in these houses stay warm in July no matter what the thermostat says. A central air install in Ojus typically runs $3,500 to $7,500, with the final number driven by system size, ductwork condition, and panel capacity.
Planning Around Flat and Low-Slope Roofs
Many Ojus homes have shallow attic space or none at all. That often pushes the condenser to a rooftop pad or a ground-mounted location beside the house. Coastal humidity and standing water on flat roofs are hard on condenser coils, so we recommend corrosion-resistant coil coating for any rooftop placement.
Sizing the System for the Actual House
We do not size by square footage alone. An older Ojus ranch with single-pane windows and poor insulation needs a different calculation than a newer build. Undersizing leaves you hot in August. Oversizing causes short-cycling, which kills compressors early and drives humidity up. Getting that right is the difference between a system that lasts twelve years and one that quits in five.
Trusted Brands We Service in Ojus
Our technicians are trained on nine major residential HVAC brands, and the ones we install most often in Ojus are AC Installation workhorses like Carrier, Trane, and Lennox. American Standard is another common pick for homeowners who want quiet operation on a small lot. We keep common parts in local stock so an Ojus customer is not waiting a week for a run capacitor or a contactor. Call (754) 354-7289 and we’ll walk the property, take measurements, and hand you a written installation quote before you commit to anything.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Ojus Homes
- Sweating galvanized ducts from the 1960s. In Ojus’s humid season, original metal ducts collect condensation that drips onto ceilings and breeds mold. Homeowners call this a roof leak; it’s usually the ducts, and it gets fixed before the new condenser goes in.
- Undersized ductwork on a modern high-SEER system. The original 2-ton galvanized runs often cannot handle the airflow a modern unit needs. Static pressure climbs, the blower motor works harder than it should, and the motor fails years early.
- New compressor on an old 100-amp panel. Without a load calculation, the new condenser trips breakers and overheats wiring during peak July heat. In some Ojus homes we’ve had to upgrade to a 200-amp panel before a heat pump could be safely connected.
- Rooftop condenser without corrosion protection. Flat and low-slope roofs collect standing water, and Ojus’s coastal humidity accelerates coil pitting. A condenser without a corrosion-resistant coating on the coil will not make its expected lifespan.
Pricing for AC Installation in Ojus, FL
A full central AC installation in Ojus typically runs $3,500 to $7,500. A basic 2-ton replacement on an existing ducted system with a healthy electrical panel lands near the lower end. A 4-ton high-efficiency heat pump with duct replacement, a panel upgrade, and rooftop work lands near the upper end. AC repair in Ojus runs $150 to $650, Furnace Repair in Ojus runs $150 to $700, and a seasonal tune-up $80 to $200. Every quote includes the written price before work starts, and the price does not change at the door. Call (754) 354-7289 for a free estimate on your Ojus home.
We Also Serve Cities Near Ojus
We work throughout this stretch of South Florida, including Ojus and the nearby communities of Fort Lauderdale, Hollywood, Davie, and Sunrise. Dispatch and scheduling are coordinated from our South FL office, and crews serve Ojus locally. If you’re in one of these neighboring cities and need AC installation, call the same number: (754) 354-7289.
Serving Ojus, FL - Our Local Coverage Area
We’re based in the Ojus 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 AC Installation in Ojus
The most common reason is original galvanized ductwork that is undersized or leaking. A new high-efficiency system needs proper airflow to push cool air to every room. When the ducts are from the 1960s and were sized for a much less efficient unit, the static pressure rises and the cold air dies in the ducts before it reaches distant bedrooms. In Ojus houses, we often find that fixing the ductwork resolves uneven cooling even before the old condenser is removed. Call (754) 354-7289 and we’ll inspect the ducts first, not after the install.
Often, yes. Many Ojus homes still run on 100-amp panels that were sized for 1960s electrical loads. A modern central AC or heat pump draws more at startup, and if the panel cannot deliver, breakers trip, wiring overheats, and capacitors fail during peak July heat. We check the panel load before the install. If an upgrade is needed, the cost is included in your written quote before work begins.
Yes, many Ojus homes have flat or low-slope roofs with little attic space, so the condenser often goes on the roof. That placement carries a specific risk here: standing water and coastal humidity accelerate coil pitting and corrosion. We recommend a corrosion-resistant coil coating for any rooftop condenser. It adds modest cost and meaningfully extends equipment life. Call (754) 354-7289 and we’ll talk through the placement options for your specific roof.
For an older Ojus home that needs ductwork replacement along with the new system, expect the total to land between $5,500 and $7,500. A basic like-for-like swap on a house with healthy ducts and an adequate electrical panel can run closer to $3,500 to $5,000. Duct replacement, panel upgrades, and rooftop work are the three factors that push the price up. Our written quote covers all of it before any work begins.
Stains on your ceiling after a new install usually point to the existing ducts sweating, not the new equipment. Ojus’s humidity is relentless, and original 1960s galvanized ductwork collects condensation that drips onto drywall. The stains can look exactly like a roof leak, which is why so many Ojus homeowners misdiagnose them. If your ducts were not replaced or insulated when the new system went in, we can inspect and fix them under our AC Installation service. Call (754) 354-7289 and we’ll come look.
In a 1958 ranch on NE 203rd St, our crew found the original galvanized ducts sweating so badly the hallway ceiling had bloomed with mold the owner blamed on a roof leak. We replaced the rusty duct runs with insulated flex, upgraded a 100-amp panel to 200 amps to handle the new 4-ton Carrier heat pump, and set the SEER2 rating to 16.2 under proper static pressure. The stains disappeared and the old 2.5-ton system’s short-cycling problem went with them.
If you’re in Ojus and your AC is on its last legs, or you’re already living with those ceiling stains and uneven rooms, call (754) 354-7289. We’ll inspect the ducts, check the panel, measure the house, and hand you a written price before any equipment is ordered. The 365-Day Done Right Promise applies to every install. We put it in writing.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Fort Lauderdale, serving Ojus since 2003.