How to Choose Between HVAC Repair and Replacement

If you notice that your HVAC system is performing poorly or is entirely dysfunctional, you will need to decide if it’s time to repair or replace it.

Choosing between repair and replacement is a predicament we find ourselves in often. The most common case is with cars, but the same goes for your HVAC system. If you notice that your unit is performing poorly or is entirely dysfunctional, you will need to make this choice quickly. Here are some factors to consider when making your decision.


Just like with a car, you generally shouldn’t keep getting repairs on a system if it is too old. The reason is that an old machine will likely need a repair soon after the current one. Going through that cycle a few times will cost you much more than replacement. The number you should look at in these situations is 15. If your system is newer than that amount of years, you will likely want a repair. If it is older, updating your technology is a smart idea.

Which Costs More?

This factor is an easy one to understand. Sometimes, an HVAC system is so flawed that getting a repair is actually more expensive than a full replacement. In these situations, you should generally opt for a new system. The one challenging aspect of making this decision is getting accurate information. You can do so by hiring a good, trustworthy HVAC company that will recommend the best option, rather than the one that makes them the most money.

Advanced Cost Analysis

When a repair costs more than a replacement, your decision is usually easy. Unfortunately, you will rarely run into this situation. Instead, the better option will be less clear, and it will require a more advanced cost analysis. The following are 3 factors to consider.

Outright Cost – This expense is what we covered in the former section. All you need to do is compare the two service estimates.

Likelihood of Another Repair – This factor takes age and reliability into account. What might happen with an older system is that you pay for a costly repair, then are forced to do so again in just a couple of years. Alternatively, a new system will likely not need major maintenance for many years.

Electricity Bills – The general trend is that newer systems have higher efficiency, which brings down your monthly bill. Additionally, you can pay more for brands that specialize in lowering electricity costs. Doing so might save you a lot of money in the long run.


One thing you might notice in your home is that the temperature takes a long time to change. The most likely reason for this effect is a poorly performing HVAC system. If this is the case, you should consider updating your technology for the simple fact that it will lead to a more comfortable life.

Now that you understand the factors that go into the ac repair vs replacement decision, you can solve your HVAC issues with confidence. First, think about the simple factors like age and outright cost. Then, if necessary, consider more complicated factors like advanced cost analysis and effectiveness. This decision is best made with the help of an experienced St. Louis HVAC company.

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