Your typical central air conditioning connected to an air handler and using ductwork can last as long as 30 years with good luck and maintenance but will generally need to be replaced somewhere between 10 and 20 years.
In general, most HVAC systems will last 15 to 25 years, but depending on the type of system and other contributing factors, that estimate can be highly variable.
If your unit is more than 10 years old, there are many factors that may encourage you to replace the unit. Energy Efficiency: Units that exceed 10 years of age do not meet the same energy-efficient standards as modern units.
An air handler costs $1,500 to $3,400 to replace, depending on the ton size, brand, and type. Air handler prices are $700 to $1,600 for the unit alone, plus $800 to $1,800 for replacement labor. Air handler fan coil units from top brands like Trane, Carrier, and Lennox cost the most.
14 to 20 years old: This is the average life span of well-maintained HVAC equipment. A breakdown at this age may warrant a replacement.
Installing a new HVAC system ranges on average from $5,000 to $12,500. Several factors influence your HVAC replacement cost, including the size and layout of your house, the reusability of the ductwork, the system's energy efficiency and the complexity of the project.
If your aircon is older than 10 years and plagued with ongoing issues, you might want to consider replacing your air conditioner. A benefit of replacing your aircon is that you will get a more energy efficient model which would ultimately save you a lot of money on power bills.
If you've been experiencing unusual noises, inadequate cooling or heating, excessive dust and poor indoor air quality, escalating energy bills, frequent repairs, aging system, insufficient airflow, or uneven temperatures in your home, it may be time to consider replacing your air handler.
Homeowners insurance covers HVAC systems when the damage is a result of a covered disaster or peril, including high winds, fallen trees, theft, hail or even a fire. So if lightning strikes your unit and damages its electrical components, your homeowners insurance policy would probably cover it.
The cost of a new HVAC system together costs $7,500 on average, usually somewhere between $5,000 to $12,500. This can end up being cheaper than replacing your AC and Furnace separately over time. The cost to replace a furnace and air conditioning at once is $7,500 on average but could range from $2,500 to $15,000.
The $5,000 rule is an industry-accepted rule for determining whether to repair or replace an HVAC system. Multiply the age of your equipment by its estimated repair cost. If the outcome is under $5,000, you should probably repair it. If over $5,000, you should replace it.
Air handler/blower motors last about 10-15 years with regular air conditioner maintenance. Without regular maintenance, the motor may give out sooner. A professional HVAC technician can repair or replace a broken motor, getting your fan up and running.
The U.S. Department of Energy recommends that homeowners replace their HVAC system every 10 to 15 years. Although heating and cooling systems are meant to endure heavy usage, their components will start to wear out after 10 years.
HVAC and home insurance
A homeowners policy may cover your HVAC in two ways: either through the dwelling coverage or the personal property coverage on your policy. Dwelling coverage may help pay to repair or replace a built-in unit since it's considered part of the home's structure.
How long does HVAC last? A typical residential HVAC system lasts between 10 and 25 years, but let's look at that in closer detail.
Earthquake, flood, mold, earth movement, and “wear and tear” are some of the perils that are usually excluded. When an insurer writes your homeowners coverage, the insurer is legally obligated to offer you earthquake coverage for an additional premium.
Thermostat: 5-10 years; smart thermostats need sensor replacements in 2-3 years. Heat Exchangers: 15-25 years made with modern materials; 30+ with cast iron. Commercial air handler: 15-20 years.
However, if you suspect a refrigerant leak, it may be time to replace your air handler as a safety and energy efficiency measure. While occasional fluctuations in energy bills are normal, if you experience unusual spikes in your accounts, it could be a sign of a faulty air handler or other HVAC problems.
Clean or change the air handler filter at least once a year — more if you have pets or seasonal allergies or asthma. Listen for excessive noise or vibrations. Be aware of odors coming from the air. Musty smells could be mold build up while burning smells may indicate an electrical problem with the motor.
Modern air conditioners can last between 15-20 years, and older air conditioners last around 10-12 years. The health and efficiency of your A/C depends on a number of factors, including whether or not you properly maintained the unit throughout its lifetime.
According to Energy Star, you should consider replacing your air conditioner if it is more than 10 years old, and you should seriously consider replacing the air conditioner if it's more than 15 years old—as this is the average lifespan of most cooling devices.
While every unit is different, and every homeowner has a different understanding of when their central air conditioner is broken beyond repair, it's fair to say that, with proper maintenance and care, you can expect a good 15 to 20 years of cooling from a new high efficiency air conditioning system.