How to Check for and Fix Foundation Cracks

  1. Basement leak repair
  2. Repairing basement leaks
  3. Checking for foundation cracks and fixing them

Foundation cracks can be a serious problem for any home or business. Left unchecked, these cracks can lead to significant structural damage and costly repairs. Fortunately, there are steps you can take to identify and repair foundation cracks before they become a bigger issue. In this article, we will look at how to check for foundation cracks and what to do if you find them.

Monitoring Foundation Cracks

It's important to keep an eye on foundation cracks even after they have been repaired in order to ensure that the problem does not reoccur.

If a foundation crack is left unchecked, it can lead to structural damage, water damage, and even mold growth. It's also important to monitor foundation cracks for signs of deterioration, which can be caused by poor drainage, soil erosion, or even settling of the foundation itself. In order to monitor foundation cracks effectively, it's important to check them on a regular basis. This should be done at least once a year, or more frequently if the foundation is located in an area with a high risk of water damage or soil erosion. It's also important to inspect any newly repaired foundation cracks for signs of deterioration or further damage.

If any new damage is found, it should be addressed right away in order to prevent further problems. If you're not sure how to monitor foundation cracks effectively, there are professionals who can help. A professional inspection can provide a comprehensive assessment of the condition of the foundation, including any potential issues that may arise in the future. It's also a good idea to have a professional inspect your home annually in order to ensure that your foundation is secure and stable.

Preventing Further Damage

Once you have identified and assessed the severity of the foundation crack, it is important to take action to prevent further damage. Some of the most effective steps you can take to prevent further damage include:Seal any cracks:Using a masonry sealant or waterproofing material, seal any cracks or holes in your foundation walls.

This will help prevent water from seeping in and causing further damage. Make sure to use a high-quality sealant that is designed for use on masonry walls.

Check for water leakage:

Regularly inspect your basement and foundation for signs of water leakage. If you notice any, take action immediately to repair the source of the leak. You may need to hire a professional plumber or waterproofing specialist if the job is too difficult for you to handle on your own.

Install proper drainage:

Make sure your foundation has proper drainage.

Installing a drainage system around your foundation can help keep water away from your home and reduce the risk of water leakage and foundation damage.

Check for structural issues:

If you notice any structural issues with your foundation, such as bowing or leaning walls, it is important to address them as soon as possible. A structural engineer or contractor can help you assess the issue and advise you on the best course of action.

Identifying the Cause of Foundation Cracks

Foundation cracks are a common problem for homeowners, but understanding why they occur is essential for proper repair.


is one of the leading causes of foundation cracks, as water can seep through small openings in the foundation and cause the ground underneath to shift. This can cause large cracks to form, or existing cracks to widen.

Changes in temperature can also cause damage, as the winter cold causes the soil to contract and expand. In addition, poorly compacted soil, especially around new construction projects, can lead to foundation cracks. This can happen when soil is not properly tamped down after being moved or replaced. Finally, soil erosion caused by poor drainage or other external factors can create foundation problems.

Understanding the cause of your foundation crack is essential for proper repair. If moisture is the culprit, it's important to identify any potential sources of water and eliminate them, as well as to waterproof your foundation. If temperature changes are to blame, consider adding insulation around your foundation walls to help protect against temperature changes. If the issue is related to poorly compacted soil, you may need to re-compact the soil around your foundation before attempting repairs.

Finally, if soil erosion is an issue, make sure that your drainage system is working properly and that any external factors causing erosion are addressed.

Assessing the Severity of Foundation Cracks

When assessing the severity of a foundation crack, there are several factors that need to be taken into consideration. The type of crack, width, depth, and location all play a role in determining the severity of the issue.

Type of Crack:

Foundation cracks can be categorized into two types – horizontal and vertical. Horizontal cracks are typically more serious, as they may indicate a shifting or settling foundation.

Vertical cracks, on the other hand, are often a result of shrinkage due to changing temperatures and moisture levels in the soil.


The width of a crack is also an important factor to consider when assessing the severity of the issue. Generally speaking, a crack that is wider than a quarter inch should be taken seriously, as it can indicate a structural issue.


The depth of a foundation crack can also help determine its severity. If a crack is very deep, it may be indicative of a serious structural issue.

Location: The location of a crack can also be indicative of its severity. Cracks near doorways, windows, or other structural elements may be more serious than those in other areas. By taking all these factors into account, homeowners can better assess the severity of their foundation crack and determine the best course of action for repair.

Repairing Foundation Cracks

Repairing Foundation Cracks:When it comes to repairing foundation cracks, it’s important to first assess the severity of the damage.

If the crack is small, it may be possible to fill it using a concrete or masonry crack filler. However, for larger cracks, or for those that are causing structural damage, more comprehensive repair methods may be necessary. If the crack is caused by water seepage or hydrostatic pressure, it’s important to address the source of the water before attempting to repair the crack. This could mean replacing broken pipes, installing a sump pump, or installing a waterproofing system.

Once the source of the water is addressed, you can begin to repair the crack itself. For large cracks, it’s best to consult with a professional contractor who can provide an estimate and create a plan of action. For smaller cracks, you may be able to repair the damage yourself by following these simple steps:

  • Clean the crack thoroughly with a wire brush and vacuum.
  • Fill the crack with a concrete patch or masonry crack filler.
  • Allow the patch to dry completely.
  • Apply a coat of waterproof sealant over the patch.
For more severe cracks, it may be necessary to install a steel reinforcement bar to stabilize the foundation wall and prevent further damage. In this case, it’s best to consult a professional contractor for advice on the best course of action.

Regardless of which repair method you choose, it’s important to follow all instructions carefully and use quality materials for the best results. With proper care and attention, you can help ensure your foundation remains secure and stable for many years to come. Foundation cracks can be a source of worry for homeowners, but with the right knowledge and steps they can be quickly identified and repaired. Assessing the severity of the crack is essential before attempting any repairs, and monitoring the crack even after it has been fixed can help prevent further damage. By following these steps, you can ensure your foundation remains secure and stable.

Identifying the cause of foundation cracks

, assessing the severity of foundation cracks, repairing foundation cracks, preventing further damage, and monitoring foundation cracks are all important steps to take when dealing with foundation cracks.

Philip Vendig
Philip Vendig

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