Signs It’s Time for a Furnace Replacement

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• Sign 1: Your Furnace Is 15–20+ Years Old

Furnaces, like any mechanical system, have a limited lifespan. With proper installation and maintenance, that 'expiration date' can stretch past 20 years. Unfortunately, poor installation, inconsistent upkeep, and heavy usage can significantly cut that life expectancy short.

If your unit is nearing or past its life expectancy, then it’s time to seriously consider replacement. Even if your old furnace seems to be working fine, older units tend to be less energy-efficient, more prone to failure, and incompatible with modern thermostats or zoning systems.

• Sign 2: Repair Costs Keep Climbing

If you're calling an HVAC technician more often than you're ringing up your barber, then it's time to reconsider your strategy. Frequent breakdowns aren’t just frustrating - they’re costly.

A good rule of thumb we like to follow is to replace the furnace if the cost to repair is more than 50% of the cost of a new unit. A new furnace saves you from those seemingly endless repairs and lets you take advantage of the latest features and improved efficiency.

• Sign 3: Uneven Heating or Poor Airflow

Do you find yourself constantly adjusting the thermostat but never feeling truly comfortable? Are some rooms in your home toasty while others are freezing? These symptoms could point to a furnace that’s on its last leg.

While associated issues like clogged filters or duct leaks can sometimes be repaired, poor airflow is often a sign that the blower motor is failing or the system is no longer sized properly for your space. In either case, a replacement is often the more effective fix.

• Sign 4: Your Energy Bills Are on the Rise

The HVAC system accounts for around 40 to 50 percent of household energy consumption, so saving matters when it comes to heating and cooling your home or business. Older furnaces become less efficient over time, so watch out for creeping energy bills.

If your bills are rising despite similar usage, then explore some upgrades. Modern furnaces are far more energy-efficient than those built even a decade ago. Upgrading to a newer model can significantly reduce your monthly bills and simultaneously boost comfort and performance.

• Sign 5: You’re Planning to Sell or Renovate

Your HVAC system plays a major role in value and buyer perception. An aging, noisy, or inefficient furnace could scare off potential buyers while the latest model can give you negotiating power. A new system signals to buyers that they won’t need to worry about HVAC repair or replacements anytime soon. Instead, they can focus on settling in.

Consult with an HVAC Professional

Whether you're considering a newer and better furnace or need emergency heat repair, the dedicated crew at Aire Serv is always ready to help. Call or message Aire Serv today to speak with a live representative. We're happy to schedule a convenient appointment or arrange urgent assistance for as soon as possible.