commercial hvac unit on the roof of a building

3 Signs It’s Time For A Commercial HVAC Replacement


Every HVAC system has a finite lifespan. Never once has an HVAC system lasted forever. Generally speaking, most HVAC systems last between 10 and 15 years.

Is your commercial HVAC system around that age? Wondering whether it’s time for a commercial HVAC replacement? Here are 5 signs that it is.

1. Your Utility Bills Keep Getting Higher

One sign that it might be time to replace your commercial HVAC system is that your utility bills keep going up. If this is happening, it’s either because your building lacks insulation, or because your HVAC system is having a harder time performing its function, and is therefore requiring more energy.

If your HVAC system is the direct culprit, it’s likely because one of its components is impaired. It could be something like the condenser impeller being damaged. Or, it could be the AC motor reaching the end of its lifespan.

In any case, if your energy bills are going up, you’re advised to have your HVAC system inspected by a professional technician. The technician will assess your system, determine whether there’s anything wrong with it, and make either a repair or a replacement.

2. Your HVAC System Is Making Weird Noises

Another sign that it might be time to replace your HVAC system is that it’s making weird noises. These noises could be anything from squeaking sounds to grinding sounds to banging sounds and more.

See, HVAC systems aren’t really supposed to make any noise at all. So, any new sound that you hear from your HVAC is bound to be indicative of a problem.

Now, this doesn’t necessarily mean that you’ll need to replace your HVAC system entirely. It might just need a timely repair. But in either case, professional attention is required.

Wondering what might cause weird noises in an HVAC system? Loose belts, sticks stuck in the condenser, and a lack of cleaning are common causes. For more information, check out this guide.

3. Your HVAC System Keeps Breaking Down

An almost certain sign that HVAC replacement is around the corner is that your HVAC system keeps breaking down. HVAC breakdowns happen, but they shouldn’t be happening every few months. If they are, your system has likely reached its operational limit.

Sure, you could keep making repairs every time a new problem crops up. However, you’d just be delaying the inevitable (and paying a lot of money to do so as well).

At this juncture, it’s wiser to just replace the system entirely. New HVAC systems are more efficient than old HVAC systems anyway. So, instead of wasting money on repairs, you could be saving money on monthly energy costs.

Yes, the replacement might feel like a big financial hit. However, when you subtract the repair costs and the saved energy expenses, you’ll see that it’s actually the more cost-effective option in the long run.

4. Your Indoor Temperatures Are Inconsistent

When an HVAC system is operating properly, every room in the adjoining building should possess essentially the same temperature. If your rooms have different temperatures, for instance, one room is 72 degrees while another is 68 degrees, your HVAC system likely requires professional attention of some kind.

There are a number of reasons as to why these temperature inconsistencies might crop up. It could be that your ducts are dirty. On the other hand, it could be that your HVAC system isn’t producing enough heat or cold to distribute it evenly to every room throughout your building.

Either repair or replacement will be needed. So, call up your local commercial HVAC technician and have them assess the problem. They’ll determine what’s needed and take the necessary action.

5. Your HVAC System Is Short Cycling

A common HVAC problem is the problem of short cycling. This is when an HVAC system turns on for a few seconds, turns off for a few seconds, and then repeats the process over and over and over again.

It can be indicative of a number of issues. On one hand, it might indicate a miss-sized HVAC unit. On the other hand, it could indicate a communication problem between the thermostat and the unit itself.

Ideally, this will only require a repair or small parts replacement. Note, though, that it could spell the end of your HVAC unit, and might signal the need for a replacement.

6. Your HVAC System Is Over 15 Years Old

The last sign that it’s time to replace your commercial HVAC system is that it’s over 15 years of age. As was noted above, most commercial HVAC systems last between 10 and 15 years. So, if yours is still going after 15 years, it’s working on borrowed time.

So, why shouldn’t you just let it work until it, well, stops working? There are two reasons.

For one, you don’t want your building to be left in the lurch without cooling or heating. Your HVAC system is going to die at some point, after all, and it could be at any time. Allowing it to go out on its own terms could potentially put you in a bind.

For two, if an HVAC system is over 15 years of age, it’s likely extremely inefficient by modern standards. So, while it might still work, it costs a lot more money to run than does a brand new system.

By installing a new system now, you could start saving money immediately. The amount you save on energy will outweigh the cost of buying the new system in the long run. So, as far as cost-effectiveness goes, it’s the ideal solution.

Need Commercial HVAC Replacement in New Castle County?

Are you noticing any of the signs discussed above? If so, we here at Industrial Mechanic Contractors are the people to see.

We’re well-versed in the replacement of commercial HVAC systems, having replaced countless commercial air conditioners and heating systems throughout New Castle County.

Contact us now to request a quote!

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