What Causes A Chimney To Leak?

Reasons For Leaking Chimney

There are many reasons your chimney may be leaking. But no matter the cause, additional moisture in your chimney can cause irreversible damage. Including structural problems for years to come. Wondering what may be causing your chimney to leak? We will take a look at some of the most common causes in this blog!

Outdated Flashing

Your chimney’s flashing provides a waterproof seal between the chimney and the roof. However, this area is also extremely susceptible to moisture and deterioration over time. Replacing or repairing your chimney’s flashing can help prevent significant structural damage over time.

Missing Chimney Cap

There’s no way around it. Your chimney requires a functional chimney cap in order to prevent debris and unnecessary moisture from entering the chimney. The chimney cap protects against rain, snow, and even little critters that want to make a home in your chimney. Making sure your chimney cap is in good working order, or replacing one that isn’t, can help prevent a leaky chimney.

Deteriorating Mortar

While chimney mortar has a life expectancy of about twenty years, freezing and thawing cycles can speed up that deterioration process. This is a big problem, as deteriorating mortar can cause a chimney to lean or fail entirely. Tuckpointing or chimney replacement may be the only answer in this situation.

Issues With The Chimney Crown

A cracked crown lets water in between the flue lining and the chimney. Causing issues with the walls and ceilings of your home. An annual chimney inspection will help you find these common issues before they cause extensive – and expensive – damage to your home.

How To Prevent A Leaky Chimney?

Your chimney should undergo an inspection at least twice a year. We recommend scheduling the inspection before the winter months, when the chimney will be in use the most, and again after the winter passes. 

You can trust Cummins Restoration to both inspect and repair your chimney. Our family business provides the best masonry and chimney repair in the region. Call us today at (416) 992-7965.

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    Holly Bowman XO
    Holly Bowman XO
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    Brian and the Cummins Restoration team did an incredible job tuckpointing the house. Brian fully understood what was needed and wanted and not only was he professional and efficient, but he was a pleasure to work with. I would recommend Cummins Restoration over and over again. Thanks Brian!
    Gina Donnelly
    Gina Donnelly
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    Tuck pointing and threshold repair. Did a great job for a fair price compared to other companies. It's been a few months and you can barely tell where the mortar repair was done.
    M.B Toronto
    M.B Toronto
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    You guys did a terrific job on the tuckpointing, I’d have no problem recommending you to anyone. The front of my house just looks so much better

    Contact us




      Holly Bowman XO
      Holly Bowman XO
      Read More
      Brian and the Cummins Restoration team did an incredible job tuckpointing the house. Brian fully understood what was needed and wanted and not only was he professional and efficient, but he was a pleasure to work with. I would recommend Cummins Restoration over and over again. Thanks Brian!
      Gina Donnelly
      Gina Donnelly
      Read More
      Tuck pointing and threshold repair. Did a great job for a fair price compared to other companies. It's been a few months and you can barely tell where the mortar repair was done.
      M.B Toronto
      M.B Toronto
      Read More
      You guys did a terrific job on the tuckpointing, I’d have no problem recommending you to anyone. The front of my house just looks so much better