Mortar Repointing on Fireplace Chimneys

Home » Furnaces, AC's & Fireplaces » Chimneys » Mortar Repointing on Fireplace Chimneys

Last Updated: May 4, 2021

Overtime the mortar between the brick or stone tends to slowly deteriorate and crack, even falling out in some places. When this occurs, maintenance of these joints is advised. Basically, the maintenance involves, scraping out any loose or deteriorated mortar and replacing it with new mortar.

Weather and movement

Mortar joints between brick or stone are likely to deteriorate over time due to weather and the elements. This may occur over a 20 to 30 year period. General maintenance will enhance the look of the chimney and extend its usefulness.

Chimney masons and sealants

Chimney Masons are the ones who are most efficient at this process. After the repointing has been done, a sealant applied to the chimney might help extend the life of the brick or stone, as well as the mortar. The sealant is for the purpose of keeping moisture from seeping or penetrating into the brick or mortar. In climates where there is a freeze and thaw cycle, doing this will help hold down the cost of future maintenance.

Who to consult? Fireplace contractor or brick or stone mason.

DIY home owners may be able to some repointing, as well as some handymen. Fireplace contractors and brick or stone masons are generally the most proficient.

Additional Resources

Notify of

Inline Feedbacks
View all comments
In some of our articles we provide links to products that may be beneficial given the subject matter of the content. We receive a small commission if you choose to purchase a product or service after following one of our affiliate links but the price is the same for you.
Would love your thoughts, please comment.x