Minor Hairline vs Major Foundation Cracks: Causes & Repairs

In the early years after construction, it’s common to spot thin cracks on basement walls, especially around doors and windows. Typically no wider than 3 mm, hairline fractures are mostly harmless. They occur as the concrete settles and shrinks over time, a natural process as it dries and hardens.

These minor cracks usually don’t threaten your home’s structural integrity. They can arise from internal stress within the concrete slab, such as shrinkage cracks that form when concrete loses water and becomes more rigid.

Although these cracks are small, usually less than 1/8 inch in width, they can start from stress points like corners of openings or around embedded items and might stop and restart some distance away. Factors like temperature changes, weather conditions, and moisture accumulation can contribute to their formation.

It’s wise to keep an eye on them since what begins as a cosmetic issue can escalate to a structural concern if water infiltration begins to erode the concrete. Repairing these cracks is usually straightforward, often involving the use of an epoxy injection to seal the crack and shield against future water intrusion.

Mount Valley Foundation Services offers repair services designed to address any issues your home may encounter. With a commitment to quality and customer satisfaction, Mount Valley Foundation Services thoroughly assesses the nature of your foundation problems.

Don’t let foundation cracks compromise your home’s safety or value. Call today to schedule your free inspection and same-day estimate for any foundation issues. Expert evaluation can lead to effective solutions, ensuring the stability and security of your home.