How much does it cost to replace an outside AC unit?

Author: Kayleigh Block  |  Last update: Tuesday, September 30, 2025

A new outdoor AC unit installation costs the average homeowner $3,460 to $4,760 for a basic outdoor air conditioner replacement.

How much does it cost to replace an outdoor AC unit?

The average cost to replace just the outdoor AC unit is around $6,000, but the price could be as low as $4,000 or as high as $15,000 to $20,000.

Can I replace only the outside AC unit?

You can, although a technician will typically recommend that you replace both the inside and outside units. Before replacing anything, however, make sure you really need a replacement -- not just a repair.

How long should an outdoor AC unit last?

It's important to be aware of how long air conditioners last, so you don't get the unwelcome surprise of a broken air conditioner in the peak of the summer heat. In general, air conditioners that are properly maintained can last 15 to 20 years.

Does homeowners insurance cover outside AC units?

Key takeaways: Homeowners insurance covers HVAC systems when the damage is due to a covered peril or disaster. A standard homeowners insurance policy won't cover an HVAC unit if the damage is due to general wear and tear, owner neglect or old age.

How Much Does An Air Conditioner Cost? - AC Installation

How much does a new HVAC system cost?

According to HomeGuide.com, the average cost to replace the HVAC units is $5,000 to $11,000; to replace the units with ductwork runs between $7,000 and $16,000 in total.

Is it a good idea to cover your outside AC unit?

If you're considering covering your outside AC unit in the summer, whether to protect it from bad weather or to possibly save energy, the reality is that you should never cover your AC unit – not even during bad weather. For one thing, outdoor AC units are specifically designed to live outdoors.

What is the most expensive part to replace on an AC unit?

Usually, it is a quick fix, but sometimes the failure can be caused by a much bigger problem. The most expensive part of an AC unit to replace and repair is the air compressor.

How long does it take to replace outside AC unit?

In general, it should take no more than a few hours to replace an AC unit. Usually, it will take between two and six hours to replace, but sometimes it takes up to eight hours. But of course, the exact time will depend on the specific circumstances of your situation.

Is it cheaper to replace AC unit in winter?

Air conditioning units are cheapest during the cold months just before the manufacturers release their new models. At that time, you can get the best discounts because retailers want to make room for the new ones. However, winter is a terrible time to install any kind of AC that needs a professional.

What happens if outside AC unit is not working?

The main reasons your AC unit outside is not turning on could be something that has tripped the circuit breaker, something is blocking the fan's airflow, or the condensing unit is damaged. Other potential issues could be the thermostat isn't set correctly or the compressor could be malfunctioning.

What is the outside AC unit called?

The outside portion of your air conditioner is most often referred to as the “condenser unit.” Whereas the inside part of your air conditioner is responsible for absorbing heat from your home's air, your outside unit's job is to release that heat to the air outside.

Can I replace just my outside AC unit?

If your AC is newer, you may be able to replace just the outdoor unit. In many cases, this could lead to decreased energy efficiency or early AC failure. Installing a new AC costs between $3,800 to $7,500. Replacing just the outdoor unit can sometimes void the warranty.

How much is labor to install an AC unit?

HVAC Pro Cost

Most people pay $500 to $2,500 in labor for AC replacement.

What time of year is the cheapest to replace HVAC?

Better pricing: Since there's less demand for HVAC system replacement in spring and fall, your HVAC contractor might even offer their own savings incentives.

What is the average life of an outside AC unit?

Unlike furnaces, air conditioners are often outdoors and exposed to extreme temperatures throughout the year, which shortens their life expectancy. Modern air conditioners can last between 15-20 years, and older air conditioners last around 10-12 years.

Is it hard to replace AC unit yourself?

Generally, you can install these air conditioners yourself if they don't require modifications to your home — in fact, some units are designed explicitly with DIY installation in mind. Installing a central air conditioner is more complex, but you could consider doing it yourself if you're confident in your DIY skills.

Does AC outdoor unit require maintenance?

Outside AC Unit Maintenance Frequency

To keep your outdoor air conditioning unit running well, you should do regular maintenance once a year. This is usually in the spring, before it gets hot. You'll need to clear debris, clean parts, and check for problems.

Does homeowners insurance cover replacing AC unit?

Does homeowners insurance cover air conditioner replacement? If your air conditioner is damaged or destroyed due to a covered peril, such as lightning or a windstorm, your homeowners insurance policy may pay to repair or replace the unit, up to your coverage limit and minus your homeowners insurance deductible.

How much does a full AC replacement cost?

Central Air Conditioning/AC

A central AC system includes a condenser, a compressor, and an evaporator. Costs for both the system and the labor to install it range from $6,465 to $11,877.

Is it better to repair AC or buy a new one?

Many HVAC technicians use the "5,000 rule" when making this decision. Simply multiply the age of the system by the repair cost. If it's under $5,000, consider a repair; if it's over $5,000, it's probably better off buying a new unit.

Should outside AC unit be covered in winter?

Air conditioners are designed for outdoor installation, so an AC unit is made to be able to withstand all types of weather, including harsh winter weather conditions – rain, snow, ice, and other forms of moisture. AC covers are not necessary to protect this equipment as it is sidelined over the winter months.

Should you spray off your outside AC unit?

After all, one thing we were all taught when we were very young is that water and electrical appliances don't mix. So how do you clean your outside AC unit? The good news is that you absolutely can spray water on your air conditioner if it needs a cleaning, and nothing bad will happen.

Should I put a mesh cover over my AC unit?

Air conditioners are built to withstand extreme weather

Your air conditioner's coils are also designed to handle extreme weather conditions. Since A/C units are made with first-rate materials and have a solid finish, it's usually not necessary to cover them when they're not in use.

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