The short answer
Why Cracks Matter
Basement cracks are not just cosmetic. They can be entry points for groundwater, especially during heavy rain or when the soil shifts. Water that seeps through can damage your belongings, weaken the foundation, and create a damp environment where mold thrives.
Even a small crack can let in enough moisture to cause problems. Over time, the freeze-thaw cycle can make cracks larger. If you notice water stains, efflorescence (white powder), or a musty smell near a crack, that is a sign it needs attention.
What to Look For
Inspect your basement walls and floor for cracks. Pay attention to cracks that are wider than a hairline, run horizontally, or seem to be growing. Also look for signs of moisture, such as damp spots, peeling paint, or rust on nearby metal.
Cracks at the corners where walls meet the floor are common. These can be caused by settling. If you see a crack that is accompanied by a bowing wall or a step-like pattern, it may indicate a more serious structural issue. In that case, you may need to consult a structural engineer or a foundation professional.
- Hairline cracks less than 1/8 inch wide
- Cracks that are actively leaking water
- Cracks that are growing or spreading
- Cracks with efflorescence or rust stains
- Cracks near windows or door frames
- Cracks that are accompanied by a musty odor
When to Act Quickly
If you see water actively seeping through a crack, you should act quickly to limit damage. Move items away from the area and place towels or a bucket to catch water. The longer water sits, the more damage it can do to drywall, flooring, and personal belongings.
In humid climates, spring thunderstorms can bring heavy rain. That is a time when basement cracks become more obvious. If you notice a new crack after a storm, it is worth having it checked by a professional.
What Repair Involves
Repairing a basement crack usually involves cleaning the crack, widening it slightly to create a good bond, and filling it with a suitable sealant or epoxy. For larger cracks or those with water pressure behind them, a professional may use injection methods to seal from the inside.
The repair process depends on the size and location of the crack, as well as the type of foundation material. A local water damage pro can assess the situation and recommend the appropriate method. They may also address any water drainage issues outside your home.
Cost and Insurance
The cost of basement crack repair varies widely. It often ranges from a few hundred to a couple thousand dollars, depending on the extent of the damage, the repair method, and the accessibility of the crack. The total depends on the specific conditions of your basement.
If the crack is caused by a sudden event like a burst pipe or flooding, your homeowner's insurance might cover the repair. Policies vary, and your insurer decides what is covered. It is wise to document the damage with photos and contact your insurance company to ask about coverage.
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Call Now (817) 799-6732Frequently asked questions
Can I fix a basement crack myself?
Small hairline cracks can sometimes be sealed with a masonry patching compound. However, if the crack is large, actively leaking, or accompanied by structural movement, you are better off calling a professional. They have the tools and knowledge to do a lasting repair.
How do I know if a crack is serious?
Signs of a serious crack include water intrusion, a crack wider than 1/4 inch, a crack that is growing, or a crack that is accompanied by a bowed wall. If you are unsure, a professional can inspect it and give you an honest assessment.
Will basement crack repair stop all water problems?
Repairing the crack is a good step, but it may not solve every water issue. You also need to manage the water outside your home. Ensure gutters and downspouts direct water away from the foundation, and consider grading adjustments if water pools near the house.