When To Replace Your Commercial HVAC System?

Commercial HVAC systems are heavy-duty machines that help keep multiple floors on buildings comfortable throughout the day. Considering they work round the clock, they undergo wear and tear. However, there comes a point where repairing or replacing certain parts of your HVAC system does not help. So, let’s take a look at some tell-tale signs so that you know exactly when it is time to replace the HVAC system. A commercial AC repair service can also help you in determining this.

Suddenly Stops With Strange Noises

Commercial HVAC systems while running produce a humming sound. But, if you hear unusual noises or sounds that resemble squeaking, it means there is a problem with the unit. In most cases, such problems are ignored and expected to go away on their own but it is often that this ignorance leads to expensive repairs and replacements.

If you come across a strange noise followed by the unit suddenly shutting itself down, it means there is a serious problem that should be taken care of immediately. One thing you need to keep in mind is that modern commercial HVAC systems are smart and intelligent to the point where they will protect themselves by shutting down to avoid expensive or permanent damage.

However, you need to be familiar with such basic features so that you can get right into the problem, saving time and a lot of effort. However, if the problem persists, it simply means the components have turned weaker and the unit needs replacement.

The Unit Is Over 10 Years Old

HVAC systems a limited lifespan attached to them. They are designed to last many years before needing replacement that depends on maintenance. With better maintenance and care, they will serve you a few more than the intended years. However, there is still no guarantee that it won’t be trouble-free.

Many household and commercial appliances on average last 10 years. Even though it depends on the manufacturer and the type of the appliance, in most cases HVAC systems go through an extensive period of performance. That said, wear and tear is normal. So, there will come a time when your commercial HVAC unit will constantly experience problems.

In such a case, there is no point in spending a huge amount of money on expensive repairs and replacements. If the components have become weaker, you cannot do anything but replace them. But, since the unit itself is a decade old, you should consider saving money and investing it into a new unit.

Indoor Air Quality Is Getting Worse

Decreasing air quality is hard to ignore as everyone is going to notice it. If the air quality is bad, you will observe people coughing and struggling to breathe. This could be a sign of a leak in your commercial HVAC system. Many problems can cause this problem.

For starters, the air filters are clogged and not cleaned timely. Maintenance of a commercial HVAC system is vital and it includes cleaning of the air filters among other things.

Another reason could be damaged ductwork. With time, the ductwork just like the HVAC system itself will need repairs and replacement. This is usually the case during the winter season when HVAC systems are usually sitting dormant.

As a result, bids, rats, and other intruders tend to take up space inside which could lead to damage. This is why experts recommend getting the ductwork thoroughly inspected and maintained as well. If there is a leakage in the ductwork, it will cause cool and warm air to escape even before it enters your house.

Rising Electricity Bills

Rising electricity bills are another noteworthy sign that your commercial HVAC system needs replacement. If you were wondering why, the reason is that a malfunctioning or problematic unit will require more energy to run. So, this will increase the monthly energy bills.

So, if that is the case, you should immediately get down to fixing the problem because it won’t go away on its own but will only turn worse. In most cases, rising energy bills from an HVAC system are due to malfunctioning parts or age.

As the components turn weaker, the consumption of electricity will increase as well to compensate for the loss of cool or warm air. Therefore, if you find that spending on repairs and replacements won’t do, opt for a new unit.

Non-Ecofriendly HVAC Parts

If your commercial HVAC system is years old, it most likely means it is not accustomed to the latest eco-friendly policies. Modern HVAC systems are not only packed with plenty of smart features but also specifications that help them stand out from their competitors.

For instance, air conditioners and HVAC systems tend to come with SEER ratings. The higher the rating, the better the efficiency and effectiveness of the unit. However, these units do not come cheap either. Then again, in this case, you cannot do much but replace the entire unit.

Unfortunately, HVAC parts and components are not interchangeable. While commercial air conditioning repair Ronkonkoma is one thing, replacing the parts with eco-friendly components is not possible at the moment. Therefore, save yourself the money and hassle and opt for a new HVAC system.

Inconsistent Temperatures

Finally, a commercial HVAC system that needs to be replaced will showcase inconsistent performance. This means the unit will no longer maintain the adjusted temperature. If you observe temperature constantly fluctuating, you should get the unit checked.

However, it could also be a problem with the thermostat especially if you have installed an aftermarket one. If the thermostat is built-in, you will need to get the thermostat recalibrated by a professional. In addition to that, inconsistent performance or temperatures could take place due to other reasons as well.

For example, it could be due to clogged air filters, damaged blower motors, low refrigerant levels, etc. Whatever the reason may be, you should get it diagnosed as early as possible.

How To Maintain A Commercial HVAC System?

Maintaining a commercial HVAC system is no rocket science. All you need to do is ensure you perform weekly or monthly inspections and basic maintenance based on the usage frequency. At the same time, you should also schedule professional maintenance at least once a year to perform a thorough checkup and maintenance.

This is a form of investment instead of expense as it helps the professional identify potential issues beforehand and fix them before they turn serious. This saves you from a lot of unexpected problems in the future along with expensive repairs and replacements.

Moreover, you should always choose a team that is certified to perform maintenance on such machines. Some states also require professionals to carry insurance in case something unexpectedly goes wrong. So, you need someone who has the skills, experience, and information to look after your expensive investment.


Commercial HVAC units will run effortlessly as long as you look after them. But after a certain period specified by the manufacturer, you will need to consider their replacement. So, keep the above-mentioned tips in mind. This will save you a lot of trouble and money constantly having to call the experts and waiting for things to get fixed just when you need them. However, don’t hesitate to consult commercial HVAC companies Huntington if something doesn’t seem right.

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