Not sure whether to repair your furnace or replace it entirely? Making the right decision can save you money and avoid a surprise breakdown when you need heat most.
Homeowners in Rockwall and across the DFW area often ask: “Should I repair my furnace or is it time to replace it?” The answer depends on a few key factors, including the age of your system, the cost of repairs, and how well your furnace is heating your home.
Age of Furnace
Age is one of the biggest indicators. Most furnaces last between 15 and 20 years with proper heating maintenance. If your unit is more than 15 years old and has already had several repairs, it may be reaching the end of its lifespan.
An older system is also less efficient. Even if it’s still running, it could be costing you more each month in energy bills compared to a newer, high-efficiency model.
What’s the cost of the repair?
A good rule of thumb is the 50% rule: If the cost of the repair is more than 50% of the cost of a new furnace, replacement is usually the smarter option.
For example, if a major repair like a cracked heat exchanger or blower motor replacement costs thousands, those dollars might be better invested in a new system with updated technology and a full warranty.
If the repair is minor, like replacing an ignitor, sensor, or thermostat, and your system is relatively young, a repair likely makes more sense.
Is your home heating evenly and efficiently?
If your furnace runs constantly, struggles to maintain a consistent temperature, or leaves some rooms colder than others, that may signal it’s no longer operating efficiently.
Uneven heating can be due to aging components, ductwork issues, or improper sizing. These issues may continue even after a repair, which means replacement could provide better comfort and long-term savings.
Have you noticed higher energy bills this winter? That’s another sign your furnace might be working harder than it should, using more fuel for the same (or worse) results.
A professional furnace inspection can help pinpoint the root cause.
How Often to Repair
Furnaces that need frequent service calls become a drain on your time, budget, and peace of mind. If you’re calling every season (or more), that pattern likely won’t stop.
Replacing a system that keeps breaking down will save you from ongoing repair bills and restore consistent comfort to your home. Plus, new systems come with warranties, reducing your out-of-pocket costs for years to come.
Safety Concerns
If your furnace is showing signs of a carbon monoxide leak (like a yellow pilot light, rust around the unit, or symptoms like headaches and nausea), you should shut it off immediately and call for emergency service.
Older furnaces also carry a higher risk of fire hazards due to frayed wires or worn parts. If safety becomes a concern, replacement is the only responsible option.
Installing a carbon monoxide detector near your furnace is always a smart move.
replacing vs. repairing
When you replace your furnace, you’re not just getting heat—you’re getting peace of mind, increased efficiency, and lower energy bills. Today’s models are quieter, smarter, and better at delivering comfort evenly throughout your home.
New systems also qualify for energy rebates or utility incentives, helping offset the initial cost.
If you’re not ready for a full replacement, smart thermostat upgrades and regular tune-ups can still improve performance.
For tips on choosing the right system, visit Energy Star’s furnace buying guide.
Make the right decision for your home
Get the help you need to decide when to repair or replace your furnace. At Apple AC & Heat Services, we provide honest guidance and affordable solutions for Rockwall homeowners.
Whether your system needs a small fix or a full upgrade, our expert technicians will assess its condition, explain your options, and help you choose the best path forward.
Call Apple AC & Heat today to schedule your furnace evaluation. We’ll help you stay warm, safe, and cost-efficient all winter long.
