Many homeowners realize that they need to have their chimneys cleaned each year but they may not give much thought to their flue liners. A chimney flue liner is essential to a well functioning chimney because it protects the interior of the chimney from various types of damage. Although they typically last for years, there are many situations in which they may need repairs that are essential before use of the fireplace when temperatures drop. Summer is the perfect time to do this!

These days, a chimney flue liner is mandatory in all homes. However, prior to the 1940’s, it was not necessary to have a liner in a chimney. Homeowners living in homes that were built prior to this time should have an inspection to make sure there is a liner in place if they have not done so already. If there is no liner in the chimney, it is not safe to use it again until one has been properly installed.


Many homes have clay flue liners because they last for up to fifty years. However, even clay liners will develop regular wear and tear after a number of years. This may include cracks in the liner or the liner may begin to flake away. In some cases, this can be repaired fairly simply. However, in other situations, homeowners will need to decide if it is best to replace their clay liner with a metal one.

Although they are also very durable, metal liners have their own issues after a period of time. In particular, people run into trouble when the liners are not made out of the proper type of alloy. If this is the case, the combustion gasses that are often found after a chimney fire can corrode it. This can lead to leaks, which will eventually compromise the structure of the chimney.

Of course, there can be problems with the flue liner if it is not properly installed in the first place. One of the most common errors in installation is that it is not sealed properly. This will lead to leaks, which can cause water damage to the chimney. In addition, it can allow the growth of mold, which can pose a health risk for everyone in the home. For this reason, it is necessary to have a licensed professional install the liner.


The best way to know whether or not the chimney flue liner needs repairs is to have a professional conduct an annual inspection. A trained chimney sweep will be able to get a good look into the chimney and identify any potential problems with the liner before they become major issues. There are early signs of chimney flue liner damage that would not be apparent to the untrained eye. It is best to have the inspection done each year before using the fireplace for the winter. Even though safety should be the biggest concern, heating efficiency and structural integrity is also paramount.

Although many people do not even realize that their chimney flue has a liner, it is an essential part of a safely functioning chimney and fireplace. They are durable structures that can last for decades but that does not mean they are not vulnerable to normal wear and tear. An annual inspection is the best way to make sure that there are no pending issues that put the chimney at risk. It is important to make sure that the liner fits properly and is installed correctly to avoid any further issues.

Portland Chimney Repair – Service Area

Located right here in Oregon, our Portland chimney sweep technicians provide the best in chimney repair, fireplace installation and dryer vent care in the Greater Portland-Metro area. From NE Portland down to SE Portland, Tualatin and Oregon City in the south, from Pleasant Valley in the east to Beaverton and Sherwood in the west – when it comes to your chimney, fireplace and vents, we hope you’ll call American Chimney & Masonry! We are the most trusted Portland Chimney Repair company!

Ready To Make A Chimney Sweep Appointment?

To schedule an appointment with one of our expert chimney repair technicians, please call 503-644-0393. With over 19,000 satisfied customers since 1989, we are ready for more! We look forward to visiting with you soon about your fireplace and chimney sweep needs.

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