Cracks do become a problem when they're actively changing or shifting — especially if they're becoming wider as time goes on. If you see a crack that is wider than a quarter of an inch, you need to call an expert to make sure your foundation isn't failing.
Hairline cracks can be easily fixed and are often cosmetic. There are dangerous cracks though. If they're horizontal or at a 45-degree angle, if they're more than an eighth of an inch wide, or if they're wider at one end than the other, it's important to get them checked out.
For cracks wider than 1/4 inch, or those accompanied by other signs of foundation problems, it's best to consult a professional. A structural engineer can provide a comprehensive assessment and recommend appropriate repair methods.
If ignored, foundation problems lead to severe structural damage. As the foundation shifts or cracks, your walls start to crack, floors become uneven, and doors and windows stop functioning correctly. Your entire home becomes out of alignment. And over time, this can compromise the stability and safety of your home.
Very Severe: Cracks wider than 25mm are typically a sign of major structural damage and may need underpinning and rebuilding. Seek professional help at once.
Foundation repair costs can vary widely, but on average, homeowners spend around $5,017. However, the typical cost range is between $2,180 and $7,854. These numbers can fluctuate based on several factors, including the type of foundation, severity of damage, and local variations.
While you're home isn't likely to collapse, that doesn't mean you should try to live with a foundation problem. An unrepaired foundation problem will get worse over time and could lead to unexpected and dangerous situations. For example, foundation problems can prevent doors and windows from opening.
Dwelling coverage, or Coverage A on your homeowners insurance policy, will likely cover foundation damage caused by covered perils. If the foundation damage is due to negligence, your insurance won't cover the repair cost.
It may make a lot of sense to walk away from foundation issues in a home if the cost of repairing the issues is more than what the seller is willing to compensate by lowering the home's price, or if the scope of damage and repairs is over your budget and time-consuming.
Some foundation cracks are normal and insignificant, such as small gaps that often occur due to the settling of a house over time. However, not all are normal; horizontal, vertical, or jagged diagonals, widening gaps, or accompanied by other signs like bowing walls or water intrusion are not normal.
Serious cracks
Ceiling cracks accompanied by sagging also require immediate attention. While one small ceiling crack usually isn't anything to worry about, multiple small ceiling cracks in the same area indicate more than normal movement and should be evaluated.
A 1/16-inch crack is quite common when a home starts to settle. These hairline cracks should be vertical and should be between 2-6 inches in length. Having horizontal and diagonal cracks of any size will indicate that you have more than just the “normal” settling.
Hairline cracks under 1/18 inches are normal, but if you spot larger or deeper cracks, call a pro immediately. Cracks exceeding 1/4 inches are a sign of more serious structural damage and should be handled by a foundation pro.
Vertical cracks are often less concerning and may result from normal settling. Horizontal or diagonal cracks, especially those wider than 1/8 inch, may indicate more serious problems. Multiple cracks or those that form a pattern (like stair-step cracks in brick walls) often signal foundation issues.
During the Inspection
Over the course of about 90 minutes, the structural engineer will: Examine the exterior for signs of settling or cracking. Inspect interior walls, floors, and ceilings. Check crawl spaces or basements for moisture issues.
Home Equity Loan or Line of Credit
Home equity loans and home equity lines of credit (HELOCs) are two popular ways to finance major home improvements, such as foundation repairs. But in order to be eligible for these financing options, you need to have enough equity in your home to serve as collateral for the loan.
Discoloration or efflorescence on your foundation can be a sign that water is seeping through your foundation and leaving behind mineral deposits. Efflorescence appears as a white, powdery substance on the foundation stem wall surfaces, and is caused by the evaporation of water containing dissolved minerals.
There are two main components of foundation crack repair and those are epoxy and polyurethane foams. The concept is to use a tool similar to a caulk gun to inject the material into the crack. The foam goes in as a liquid and then expands and hardens to fill the crack.
Foundation crack repairs will only last as long as the foundation repair solution is used. If the foundation is stabilized for 100+ years, the crack repairs could last 100+ years as well, depending on the durability of the repair method.
Yes, serious foundation issues put your home's stability at risk. If a foundation wall collapses, the structure is at risk of collapsing into lower levels of the house. This is why you need a structural engineer or a highly qualified contractor to assess the damage as soon as possible.
When there has been no rain, it is very important to water your concrete foundation. Dry foundations can cause cracks in walls, doors shifting or won't close or stick when you try to open them. The trick to avoiding a shifting foundation is to keep the perimeter of the foundation evenly moist.
Depending on the type of issue, foundation repairs can cost as little as $250 for minor cracks and upwards of $25,000 or more if the issue requires hydraulic piers.
Foundation inspection costs homeowners an average of $600 but typically ranges from $300–$1,000. See which factors will impact your total cost. Mark Howey is a licensed California building contractor with more than four decades of experience in the construction industry.
While one day is the best-case scenario, it is safe to say that two or three days would be the average fix time for foundation repair issues. As mentioned above, other factors can play into the process that could prolong it, but the average sits around two to three days for a fix.