The Big Question: Repair or Replace?

When your furnace breaks down, the first thought is usually, “Can it be fixed — or is it time for a new one?” For homeowners in Rowlett, Garland, and Rockwall, the answer depends on the age, condition, and efficiency of your furnace. Barnaby Heating & Air is here to help you make an informed choice.

5 Signs It’s Time to Consider Replacement

  • Age 15+ Years – Most furnaces last 15–20 years. Older systems are less efficient and more prone to breakdowns.

  • Frequent Repairs – If you’re calling a tech more than twice a year, it may be more cost-effective to upgrade.

  • Rising Energy Bills – Declining efficiency shows up on your monthly gas or electric bill.

  • Uneven Heating – Some rooms are warm, others are chilly — a sign your system is struggling.

  • Safety Concerns – A cracked heat exchanger can leak carbon monoxide, creating a serious health hazard.

The 50% Repair Rule

A simple rule of thumb: if the repair cost is more than 50% of a new system, replacement is usually smarter. For example:

  • $1,200 blower motor repair on a 16-year-old furnace? Replace it.

  • $200 ignitor swap on a 6-year-old unit? Repair it.

The Benefits of a New Furnace

  • Energy Savings: Modern furnaces run at 95%+ AFUE efficiency, compared to older units at 70–80%.

  • Better Comfort: Consistent airflow and stable temperatures across your home.

  • Quieter Operation: Variable-speed motors reduce noise.

  • Smart Compatibility: Works seamlessly with Wi-Fi thermostats for better control.

  • Rebates & Financing: Local utility rebates and Barnaby’s financing options make upgrades affordable.

When Repair Makes More Sense

Not every issue calls for a new furnace. In many cases, a quick fix gets you back up and running. Common affordable repairs include:

  • Ignitor or flame sensor replacement

  • Thermostat calibration or upgrade

  • Blower belt or motor repair

  • Circuit board replacement

How to Decide in Rowlett

  • Check the age (find the serial number if you’re unsure).

  • Add up repairs over the past 2 years.

  • Factor in comfort and safety — not just cost.

  • Ask Barnaby Heating & Air for a professional assessment.

Ready for Honest Advice?

At Barnaby Heating & Air, we’ll never push you to replace a system that can be repaired affordably. Our goal is to give you clear options so you can make the best choice for your home.

📞 Call 972-412-0150 or schedule your appointment online today.