When to Repair vs. Replace Your Commercial HVAC System
Commercial HVAC systems are a major investment, and when something goes wrong, the big question is always the same: should you repair it, or is it time to replace it entirely? Making the right decision can save your business thousands in energy costs, avoid unexpected breakdowns, and keep your building comfortable year-round.
At McCormick Allum, we’ve been helping businesses throughout Western Massachusetts make smart HVAC decisions since 1888. Our team understands that every building—and every system—is different. If you're trying to decide between repair or replacement, here’s what to consider.
Consider the Age of Your System
One of the first things to look at is the age of your HVAC system. Most commercial units are built to last between 15 to 20 years, depending on the type, usage, and maintenance history. If your system is reaching or past that mark, you may be better off investing in a new, more efficient model.
Older systems are also more prone to frequent repairs. If you find yourself calling for service more often, those repair costs can add up quickly. In many cases, replacing an aging unit can reduce long-term expenses and give you peace of mind.
Look at Repair Costs vs. Replacement Value
A general rule of thumb is this: if the cost to repair your HVAC system is more than 50% of the cost of a new one, it’s time to consider replacement. One-time minor repairs are usually worth doing, but ongoing issues can indicate that your system is nearing the end of its lifespan.
In addition to repair costs, think about energy efficiency. Newer systems are often far more efficient, especially those with ENERGY STAR® certification. While a new system may seem expensive upfront, lower monthly energy bills can help offset the investment over time.
Energy Efficiency and Performance
Has your energy bill crept up even though your HVAC usage hasn’t changed? That’s a sign your system may be working harder than it should to heat or cool your space. Older systems lose efficiency over time, which translates into wasted energy and higher utility costs.
Upgrading to a high-efficiency commercial HVAC system not only reduces costs but also improves overall performance. That means more consistent temperatures, better indoor air quality, and a more comfortable space for employees and customers alike.
Downtime and Business Disruption
Frequent HVAC breakdowns aren’t just inconvenient—they can impact productivity, customer experience, and even equipment performance. If your system causes regular downtime, the hidden costs may outweigh the savings of short-term repairs.
A replacement may be a smarter business decision if your current system is unpredictable. Our team at McCormick Allum can install a new system with minimal disruption to your operations, ensuring your business stays up and running comfortably.
Know When to Call the Pros
Not sure which way to go? That’s where we come in. At McCormick Allum, we offer expert assessments that weigh all the factors: age, efficiency, repair history, and performance. We’ll give you an honest recommendation and walk you through the options that fit your building and budget.
Whether you need a quick repair or are exploring a full system upgrade, our technicians are ready to help. We’re proud to be the trusted HVAC partner for businesses across Western Massachusetts—and we’re here when you need us.
Have questions about your commercial HVAC system?
Contact McCormick Allum today to schedule an inspection or speak with one of our experienced technicians.
