There's nothing like living in a cool home in the middle of summer. According to U.S. News & World Report, over 90% of American homes have air conditioning. For most homeowners, an HVAC unit suddenly malfunctioning at the wrong time is a nightmare. Whenever it's time to repair or replace your existing unit, local air conditioning companies will be able to offer the finest recommendations for products and maintenance. Here are four signs it's time to give them a call.

1. Obtrusive Noise

You should hear your air conditioning unit when you turn it on. After that, it should fade into the background, resulting in a low hum. However, if your AC unit begins making rattling, shaking, or grinding noises, that's a sign that some internal parts may be loose. This is especially true if the unit wasn't excessively loud prior. 

2. Noticeable Odor

Not only should your AC be quiet but it should also be odorless. If you notice any strange smells in your home but cannot find the source, the odor might be in the air itself. Without regular cleaning, your AC may have dust and debris in its ducts. Air conditioner companies would be able to recognize if moldy or mildewy odors are coming from your vents.

3. Allergic Reactions

An unclean AC unit causes strange odors but also, may result in health concerns. According to Healthline, the presence of mold can cause various health issues, such as severe asthma, coughing, or wheezing. According to the CDC, some molds are toxic enough to even cause cancer. If there is mold growing in your air conditioner, that's a sign that it needs to be replaced sooner than later.

4. Abnormal Utility Bills

In the United States, according to LendingTree, your energy bill can constitute up to 34% of your household expenses. With this in mind, it's important to note that in our team's experience, the average lifespan of an AC unit is about 10 to 15 years. As technology is used, over time, the efficiency can wane down as it ages. Simultaneously, new improvements in air conditioning technology make newer units more efficient in regard to cooling and energy spending. You'll save more by investing in a new system than by maintaining one past its prime.

If your home is experiencing any AC issues, a timely replacement ensures you don't have to swelter in the heat. When looking for quality air conditioning companies, start with Air Master Technologies, Inc. We can diagnose and treat problems before they grow. Our team looks forward to keeping your home cool and comfortable!