Leaning chimney can be very dangerous. This indicates a more serious issue that could be related to your house’s structure or foundation. Although this may not always be the case it is the most likely cause of a leaning chimney. Let’s discuss what may cause leaning in chimneys, the risks, and how you can fix a leaning chimney.
If the ground or footing surrounding your chimney is not stable it could create the perfect environment for your chimney to shift. An unstable foundation is the leading cause in chimney shifting.
Having your chimney inspected regularly can help you spot signs of damage or leaning before they become severe. The professional chimney sweep can perform the necessary repairs to prevent further damage and possibly save your chimney before it leans so far that it may collapse. Masonry repairs can help reinforce the structure of your chimney.

Structural issues with the soil or footing
Fixes for a leaning chimney