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Spotting Common Chimney Masonry Damage

Masonry chimneys are durable and strong enough to last a lifetime. However, even the most well-built chimneys suffer from damage and deterioration. As stated by the Chimney Safety Institute of America (CSIA), water from the elements cause the greatest amount of chimney masonry damage. Masonry materials are naturally porous, so they absorb water from rain, ice, and snow. Any absorbed moisture leads to erosion damage, or spalling. For the past 25 years, All Seasons Chimney has seen the importance of repairing damaged chimney masonry in a timely fashion. As soon your bricks and mortar joints start to spall, water penetrates into the chimney. If masonry damage is left unrepaired, there is a high risk of serious structural damage. Spotting common damage early is the key to prolonging the life of the chimney system. We would like to tell you more about spalling and how we can help you solve this common problem.

What exactly is spalling?

Spotting Common Chimney Masonry Damage - Poughkeepsie NY - All Seasons ChimneyAccording to the CSIA, a lot of spalling damage happens during the coldest months of the year. Once the temperature falls below freezing, any water trapped inside the bricks and mortar joints freezes and expands. When the weather warms back up. the force of the water thawing causes the masonry materials to crack and break apart, or spall. Repeated freeze/thaw cycles over the winter can lead to loosening bricks and mortar joints and falling from the chimney. Any holes and gaps left behind from this deterioration will let water from the heavy spring and summer rains to easily leak into your chimney and home to cause even more damage and destruction.

How does All Seasons Chimney repair damaged chimney masonry?

Our CSIA-certified and trained chimney technicians are also experienced with professional chimney masonry construction and repair techniques. We take care of spalling damage by using classic techniques like tuckpointing, named from the tools used to remove and replace damaged masonry materials. We use a customized Portland cement-based mortar mix to match the color and composition to the existing mortar as close as possible. Not only will your chimney look as good as new, but it will also be structurally safe and sound..

To prevent spalling damage this winter, All Seasons Chimney recommends our professional waterproofing services. If you spot any type of damaged chimney masonry, we can stop further deterioration and restore the integrity of your chimney’s structure. Contact us as soon as possible to schedule an appointment for our professional chimney masonry repair services.

Do You Have Winter-Related Chimney Damage?

Our area has experienced some harsh winter weather this year, and we at All Seasons Chimney have already been very busy repairing a lot of damage caused by the past several cold months. From water leaks to damaged dampers, liners, and chimney caps to masonry problems, the extreme temperatures of winter can be very destructive to a chimney. You may have even noticed some damage done to your chimney. The spring season is a great time to take care of these repairs, and you do not want to delay fixing winter-related chimney damage. We would like to tell you about some common post-winter chimney repairs and how our certified and experienced chimney technicians can fix these problems.



Causing possibly hundreds to thousands of dollars in chimney damage repair, water leaks are a chimney’s worst enemy. After a cold winter with below-freezing temperatures, we often see leaks caused by spalling. Water leaks from a chimney can be hard to locate, so call All Seasons Chimney to schedule a professional chimney inspection to determine exactly what is causing them. You can see signs of a leaky chimney, which include:

Loose or missing bricks and/or mortar

Cracking and crumbling in the bricks and/or mortar

Rusty stains

Brick discoloration

Water in the fireplace

Damp odors


According to the Chimney Safety Institute of America (CSIA), the efficiency of these two parts of your chimney is crucial to saving energy and money. Additionally, these two components serve to keep water from penetrating into your chimney. If your damper is stuck open, it is the same thing as leaving a window in your house open. Cold air escapes, bugs get in, the rain pours into your house, etc. If the damper is stuck closed, you cannot start a fire because your flue is closed-off and unable to filter smoke and gases. Similarly, an undamaged chimney cap fitting correctly on the top of your chimney is essential because not only does it also keep rain out of your chimney, but it prevents stray animals from setting up home there.


These classic chimneys are a bit more elaborate and require different types of maintenance, but All Seasons Chimney specializes in repairing masonry chimneys and is glad to check the following jobs off your repair list:

Crown repair

Your crown is the chimney cap of your masonry chimney and can become cracked during the winter during extremely cold spells.


When the bricks and mortar of your chimney are crumbling and falling apart due to deteriorating joints from spalling and water damage, we can repair (or rebuild, if necessary) your chimney using these techniques.

If you have noticed any of these or other chimney problems from the past winter, contact All Seasons Chimney as soon as possible. We are ready to repair any damage as well as prevent further damage from occurring.