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Five Signs You Need to Replace Your Furnace
Five Signs You Need to Replace Your Furnace
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Five Signs You Need to Replace Your Furnace

Your furnace is just like any other appliance in your home: it’s expected to last for a number of years, but over time it will eventually grow old, wear out, and need to be replaced. However, how do you know the time to replace your furnace is upon you? Unless you know the signs and exactly what you’re looking for, it can be difficult to tell if the difficulty you’re having with your furnace is due to age or some other issue which can be repaired to preserve it.

Banks Quarles Blog

Here are five signs that you may want to consider replacing your furnace soon, as it may rapidly be approaching the end of its lifespan.

Sign #1: Your Furnace Takes a Long Time to Heat Your Home

Does it seem like your furnace takes a significantly longer amount of time to heat your home than it used to? This is fairly natural, and it will always seem like it takes longer to heat your home when the weather outside is particularly cold. But after a while it may seem like your furnace has to run for ages before your home feels comfortable again.

This can partially be blamed on air leaks, which allow heat to escape from your home and prevent you from remaining comfortable for long. However, if your home is fairly sealed and your home still takes ages to warm up, it may simply be due to the fact that your furnace simply can’t produce as much heat as it did before.

Sign #2: Your Energy Bills are Growing Rapidly

Does it seem like your energy bills are surging? Increasing costs are normal (some sources estimate that energy costs will rise an average of about three percent per year over the next two decades), but a sudden, unexplained jump in your utility bills may be due to your furnace’s inability to make the most of the energy it consumes. This leads to longer run times, more consumed energy, and a lot of additional money out of your pocket.

This also could be partially blamed on air leaks, which allow the heat you’ve paid for to seep out of your home, but bills which are considerably higher than they were as little as a year or two before may be due to a furnace that’s wearing out.

Sign #3: Your Furnace Breaks Down Frequently

Oh, dear. The furnace has given out again, has it? If this seems to happen to you quite a bit, it’s definitely another sign that the time might be right to consider replacing your furnace. Ideally, a furnace should be able to go all winter long without a serious problem causing it to break, and at the most some older systems will break maybe once per year. However, if you find that you’re calling for repairs once, twice, or even more times per year than that, then your furnace definitely needs to be replaced. As parts age, they wear out, and worn out parts will likely need repaired, one after the other. As a result, you’ll wind up spending thousands on repairs that you could have otherwise avoided by replacing the furnace in the first place.

Sign #4: Your Furnace is Old

Do you know how old your furnace is? 10 years? 15 years? Older? There’s a good chance your furnace may need to be replaced just based on its age. Realistically, a furnace should only last you anywhere from 10 to 12 years with average maintenance and care. If you take good care of your furnace, including having it professionally maintained by a Tuscaloosa heating expert, you may be able to get as many as 15 to 20 years of life out of it. However, it’s not common for a furnace last much beyond 15 years before it will likely need to be replaced.

This isn’t necessarily a bad thing. A furnace that’s aged is one that’s going to be far less efficient than before, and that means you’re going to spend more on it. Today’s furnaces are tremendously efficient, and that could wind up saving you a bundle on energy costs, as well as prevent you from having to deal with breakdowns and costly repairs. Plus, some new furnaces will be covered under warranties as long as 10 years!

Sign #5: Your Furnace Stops Responding

You flip the switch and nothing happens. Your furnace simply doesn’t respond. While this could be your thermostat acting up, it could also be your furnace finally giving out. Turn the system off and call a member of our team to discuss your replacement as soon as possible!

Schedule your furnace replacement by calling Banks Quarles Plumbing Heating Cooling & Electrical at (205) 614-5560 today!

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  • Brent
  • Brookwood
  • Buhl
  • Centreville
  • Coaling
  • Coker
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  • Duncanville
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  • Gordo
  • Holt
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  • Adger
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  • McCalla
  • Moundville
  • Northport
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  • Tuscaloosa
  • Vance
  • West Blocton


Our team wear clean uniforms and will keep your home tidy by wearing boot covers and using mats to cover work areas plus we'll always tidy up before we leave.
Aux Mechanical
Banks Quarles
Tuscaloosa AL Plumbers
Banks Quarles



No matter what your location, we'll send the nearest available technician so you can be sure of a rapid response when you have a plumbing, HVAC or electrical emergency, 24 hours a day, 7 days a week.


From new furnaces to air conditioning systems to standby generators for your home, you can be sure of the ideal system, professionally installed.


With per-job pricing quoted to you before work starts and no overtime charge, you can relax with no hidden costs to surprise you.


We schedule appointment times to suit you and are committed to arriving on-time.

  • Jeff N. did a great job fixing my bathtub faucet. He was very personable, attentive to details, and took the time to explain all my options with me. He also showed respect for my home and my family. He is a great asset to the company.

    - Dianne K —
  • Paula and staff - thanks for the quick attentive service Greg gave us once again on the weekend and after hours. Contracts are the way to go!

    — Adele B —
  • Jim was SO thorough & professional! He did an amazing job with solving the problem & explained our options on how to fix it! He was very much on the job & we are very grateful

    — Emilie S —
  • Jim was polite, pleasant and thorough in explanation of what I should expect from his service and with the cost review. He finished the job within a reasonable time. He provided me with the information concerning the Service Partner Plan plus the cost of future services. I appreciated him wearing the booties upon entering my house very much since I remove my shoes at the door. I will be happy to recommend Banks Quarles to all of my friends and family.

    — Yoko S —