AC Installation and Replacement | HVAC Service Louisville KY

In short

What AC installation & replacement covers

This service covers taking out a worn or failed central air conditioner and putting in a new, correctly sized system, or adding central air to a home that doesn't have it. It is for homeowners planning ahead or facing a repair that no longer makes sense. The number on this page connects you with independent local installers.

A good installation depends on more than the equipment. Size, matching indoor and outdoor parts, ductwork condition and careful setup all affect how well a new system cools and controls humidity.

If your current system just stopped working, start with AC repair to find out whether a fix is reasonable. Installation is the path when replacement is on the table or you are adding air conditioning to a house for the first time.

Signs homeowners notice

Signs it may be time to consider a new AC

Repairs are becoming frequent, and each one seems to lead to another.
A technician has diagnosed a failed compressor or a major coil leak.
It runs on an older refrigerant such as R-22, which has been phased out and is getting hard to source.
The house stays humid and sticky through the summer.
You want central air added to a home heated by a furnace or boiler.

Noticing one of these signs? Call to describe it.

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Two-story red brick house with white trim, a green lawn and an outdoor air conditioner on a pad beside the house in warm afternoon light

What a technician may check

What a technician may check before installation

A room-by-room load calculation (often called Manual J) covering floor area, insulation, glass, sun exposure and air leaks.
The existing indoor coil and furnace or air handler, to see whether they can be matched with a new outdoor unit.
Ductwork size, leaks and condition, since the ducts carry all the cooling the system makes.
Electrical service, the outdoor disconnect and breaker size for the new equipment.
Placement of the outdoor unit and the route for the condensate drain.

What an installation may involve

After the assessment, the provider explains the recommended system and why it fits your home. On installation day, the crew typically removes the old equipment, sets the new outdoor unit, installs or replaces the indoor coil, connects the refrigerant lines and wiring, and runs the drain. Refrigerant recovery and charging are regulated and handled by the provider.

Once installed, the system should be started and tested, including airflow and refrigerant charge checks. Ask the installer to walk you through the thermostat, the filter location and any recommended upkeep.

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Repair or replace

Sizing, matching and efficiency in plain terms

Bigger is not better with air conditioning. An oversized unit cools the air quickly but shuts off before removing much moisture, which leaves a house cool and clammy in humid weather. An undersized one runs constantly on the hottest days. Sizing from the house itself, not a guess, helps avoid both.

Efficiency ratings, such as SEER2, describe how much cooling a system delivers for the electricity it uses. Higher ratings can mean less energy use, but they only reach their potential when indoor and outdoor parts are matched and the ductwork is sound.

Weighing repair against replacement? A local provider can look at the system with you.

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Service areas

AC Installation & Replacement by market

AC installation and replacement calls can be placed through the number on this page across these markets and smaller Kentucky areas.

Smaller areas

Not sure which market your town is in? Call and give your address.

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Before you call

Safe checks a homeowner can make

Note which rooms run warm or humid and share that with the provider.
Note the model numbers on your current equipment if the labels are easy to read.
Look at visible duct runs in the basement or crawlspace for loose or crushed sections.
Clear a path to the indoor equipment and the outdoor unit for the assessment.

When professional help makes sense

Call when a technician has advised replacement, when your system is aging and you would rather plan than wait for a midsummer failure, or when you want central air added.

Installation is not a homeowner project. It involves refrigerant handling, electrical connections and equipment setup that belong with a trained provider.

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Local considerations

Choosing a system for the regional climate

Humidity is a major part of summer comfort in the Ohio River valley, so a new system here should be sized and set up to remove moisture well, not just lower the temperature. Ask how the recommended equipment handles long, muggy stretches.

Older homes across the area sometimes have ductwork designed for heating only, or returns too small for central air. Newer homes may have tighter construction that changes the load. Some homeowners also look into ductwork service at the same time.

Keep exploring

Technician kneeling beside an outdoor air conditioner with its service panel removed, testing the controls with a meter probe

AC Repair

AC repair means finding and fixing the fault that keeps an existing central air conditioner from cooling or running properly.

Newly installed high-efficiency gas furnace in a clean basement with white PVC vent pipes and a new sheet-metal supply plenum

Furnace Installation & Replacement

This service covers taking out a worn or broken furnace and putting in a properly sized new one, or adding a furnace where none existed.

Unfinished basement ceiling with a rectangular sheet-metal supply trunk running between wooden floor joists and round branch ducts leading off to the rooms above

Ductwork & Airflow Problems

Ductwork service covers finding and fixing problems in the supply and return ducts that move air between your HVAC equipment and your rooms.

Heat pump outdoor unit on a raised stand beside a house in light snow, with frost on the coil and a faint plume of steam

Heat Pump Repair

Heat pump repair means finding and correcting the fault in an air source system that won't heat, won't cool, gets stuck in defrost, runs constantly or leans too hard on backup heat.

AC Installation & Replacement: common questions

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A provider should use a load calculation that accounts for your home's square footage, insulation, windows, sun exposure and air leakage. Simply matching the size of the old unit can repeat an earlier mistake. Ask whether a load calculation will be done and how it shaped the recommendation.

Not always, but the indoor coil should be matched to the new outdoor unit for the system to perform as rated. Replacing the furnace or air handler too depends on its age, condition and compatibility.

SEER2 is an efficiency rating that describes how much cooling a system produces for the electricity it uses over a season, measured under updated test conditions. Federal minimum efficiency standards for new systems have used it since 2023. A higher number can mean lower energy use, though real performance also depends on correct sizing, matched equipment and duct condition.

Often it can, but ducts that are leaky, crushed or undersized can limit any new system. A provider may inspect accessible ductwork, check airflow and recommend sealing or changes. Duct problems are easier to address during installation.

AC Installation and Replacement in the Louisville, KY Area

What AC installation & replacement covers

Signs it may be time to consider a new AC