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Serving the Greater Houston Metro and surrounding areas for over 19 years. With over 35,000 satisfied customers, American Fireplace Inc. has over 50 years combined experience!

Why Are Those Odors Coming From the Fireplace and Chimney?


It’s the time of the year when the parents are joining their children on vacation and the days are hot and the evenings are cool. However, once you come in from enjoying the great weather, there might be a strong odor waiting for you in your house. You might notice unsavoury smoke odors, campfire like smells, chimney smells, or fireplace odors coming from your chimney.

The most common cause of chimney and fireplace odors is the creosote deposits in your chimney. Creosote which is a natural by-product of burning wood is a tar-like substance that forms a thick coating in your chimney. The smells coming from your fireplace are stronger when the humidity is higher, on those rainy summer days, and when the air conditioner is running continuously.

Once the creosote is absorbed into the inner walls of your chimney, a strong odor enters the house. If you look at the problem more closely, the real problem is the air coming down the chimney. Because there is air moving up and down your chimney continuously, the chimney odors have nowhere else to go but into your home.  When this occurs you are having a negative pressure problem.  

Some of the following home renovations and situational factors may cause the pressure in your chimney to change:

  1. Inefficient or incorrect damper closures.
  2. New furnace, boiler or water heater.
  3. Installation of new windows and/or doors.
  4. Home additions.
  5. Changes in the roofing ventilation (attic fan).
  6. Insufficient venting of stove range exhausts fans.
  7. Blocked dryer vent exhausts.
  8. Physical building changes in the surrounding area. For instance. a height increase in nearby building.

A professional, experienced chimney cleaner will be able to inspect your chimney and troubleshoot the factors that are causing the chimney to emit odors. He will be able to compensate for any of the situational conditions that have changed. He will also have the right tools to remove the creosote from the chimney walls which is a major cause of the odor.

Many chimney professionals have special deodorizing spray. However, chimney deodorizers may act only as a temporary solution.  Installing a chimney damper will help some of your fireplace odor problems. More importantly a chimney cleaning professional will be able to propose the  right solutions for every situation, and they can suggest the best preventative measures to ensure the odor doesn’t come back.

For more than 20 years, American Fireplace Inc., Houston, Texas’ fully licensed chimney cleaners, has been providing chimney and air duct cleaning services for its more than 35,000 industrial, commercial and residential clients in the Gulf Coast region and throughout the U.S.  Our certified experienced chimney sweeps can perform chimney cleaning and repairs, dryer vent cleaning or other chimney, fireplace or dryer vent related services for all types of chimneys. We’re your Houston heating and air duct cleaning experts American Fireplace, We Care about Your Air!

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