Troubleshooting and Repairing a Chimney Pulling Away from the House: A Comprehensive Guide

June 22, 2023

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As a homeowner, it's important to maintain the stability of your home. An aspect of the house that not many homeowners think about is... the chimney.

We rely on it for warmth in the winter and decorate it seasonally but what's the point of paying attention to it? Sometimes, the chimney can pull away from the house, which can be a major cause for concern.

In this guide, we'll explore the causes of why a chimney starts to pulling away, how to identify the issue, assess its severity, and provide steps to address this problem. Furthermore, we'll discuss preventive measures to avoid further damage to your home.

After all, many homeowners don't realize that chimney damage caused by wear and tear overtime is not covered by homeowners insurance.

masonry chimney with framed opening

Understanding the Importance of a Stable Chimney

The chimney plays an important role in your home, providing warmth during the winter months and allowing gases to vent out. A stable chimney ensures the safe operation of your fireplace and home heating system. When a chimney starts pulling away from house, it can compromise its structure and put your family's home at risk.

What Causes the Chimney Pulling Away from House

Structural Factors

There are several structural factors that can contribute to a chimney pulling away from the house. One common cause is foundation settlement and shifting. When the foundation settles or shifts, it can lead to the movement of the chimney.

When there is inadequate footings or supports during the chimney's construction, this can also be a contributing factor. If the chimney was not built with proper supports, it can become vulnerable to shifting.

Another reason this can happen is due to poor construction practices. This includes inadequate reinforcement or potential faulty connections to the house.

Environmental Factors

  • Earthquakes and seismic activity: In states prone to earthquakes, this abrupt ground movement can affect stability and cause chimney separation.
  • Soil erosion and moisture accumulation: Chimney displacement can also occur when there is excessive moisture in the ground causing the soil to expand and contract.
  • Climate and freeze-thaw cycles: When there is cold weather present, this causes the chimney materials to expand and contract, thereby impacting it's potential connection to your home. This is especially true in regions that have expansive soils.

Chimney-Specific Factors

  • Improper chimney construction: Sometimes chimneys are improperly installed according to guidelines which can cause it to pull away or become a leaning chimney.
  • Age and deterioration of materials: Over time, the materials used in your chimney can deteriorate, weakening its stability.
  • Lack of maintenance and regular inspections: Neglecting routine maintenance and inspections allows minor issues to worsen, potentially leading to the chimney pulling with a tilting chimney that needs repair

Identifying if Your Exterior Chimney is Pulling Away

Visual Inspections

  1. Gaps or separations between the chimney and the house
  2. Cracks or crumbling in the chimney structure
  3. Tilting or leaning chimney
  4. Loose or missing chimney flashing

Interior Signs

When you visually assess your home, look out for signs of cracks near the chimney inside by looking at the walls around it. You can also check that all your doors and windows in that rooms are still aligned by opening and closing them. A chimney can cause a misalignment to occur.

Assessing the Severity

To effectively address the issue, it's important to determine the severity of the chimney pulling away from house.

Minor Issues

  • Hairline cracks: The cracks are smaller than a coin and there is minimal separation
  • Surface-level damage: The damage is superficial and doesn't impact the structure's integrity

Moderate Issues

  • Noticeable gaps and chimney leaning: When gaps between the chimney and the house are more noticeable combined with visible leaning
  • Compromised structural integrity: If the pulling away has resulted in compromised structural integrity, it's essential to take immediate action to prevent hazardous conditions
  • Potential hazards and further damage if ignored: Moderate issues have the potential to worsen over time, leading to increased risks and more extensive repairs if left alone.

Severe Issues

  • Significant separation from the house greatly impacting structural instability
  • High risk of chimney collapse: Severe issues pose a high risk of chimney collapse, making it crucial to address themIf you identify severe signs of your chimney pulling away, it's important to seek professional advice and assistance immediately to prevent harm to your home and family.

professional masonry repairing a chimney

Steps to Address Chimney Pulling Away

When it comes to addressing a chimney pulling away from your house, there are several steps you can take to rectify the issue. Let's explore how to tackle this problem head-on and preventing issues with your tilting chimney.

  1. Hire a professional
  2. Repair any minor issues immediately
  3. Consider reinforcing the structural integrity of your leaning chimney
  4. Sometimes, a total chimney reconstruction is necessary if the chimney issues are beyond repair

When a homeowner places their trust in a masonry professional and contacts when problems first begin, the chance of repair is much higher.

Preventative Measures to Take

It's important to schedule regular inspections of the exterior of your home's foundation and chimney. An inspection allows experts to assess the condition of your chimney, identify any potential issues, and address them before they can escalate further. By following this guideline, you can ensure early detection of any pulling away or structural problems and take prompt action to mitigate them.

*Experts recommend scheduling a yearly assessment of your home's chimney


Overall, a chimney pulling away from the house can be an issue that requires immediate attention. Understanding the causes, identifying the problem, assessing its severity, and taking appropriate steps for repairs are important to maintain the integrity of your property.

When you hire a professional to assess the issue, they can provide you with customized suggestions for your property. Also, regular inspections and proper maintenance can ensure that your chimney is structurally secure for the years to come.

Reach out to our team at Toledo Foundation Repair Specialists for more information!

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