Cracks in a foundation often raise concern, especially when it’s unclear if they’re just cosmetic or a sign of something more serious. One of the first things we look at during a foundation crack repair is the type and cause of the crack.
Vertical cracks often happen from settling. Stair-step cracks usually mean water is pressing on the wall. Knowing what caused the crack helps us decide the best way to fix it.
How to Identify the Type of Foundation Crack
Is It Structural Or Cosmetic?
To figure out the right repair, we first look at the size, shape, and location of the crack.
Signs of a structural crack:
- The crack widens toward the top
- Cracks running through blocks or bricks in a stair-step pattern
- Walls bowing inward
Signs of a cosmetic crack:
- Even thickness from top to bottom
- Hairline cracks that don’t change over time
Pro Tip: If the crack gets wider over time or if you see water seeping through, don’t wait. These are signs of a bigger issue.
Foundation Crack Repair for Small Cracks
How We Fix Minor Cracks
Small cracks can be tricky. If they’re too thin, it’s hard to inject material into them. Here’s how we handle those:
- Crack seal membrane: We dig to the footing and put a thick rubber layer on the outside to block water.
- Interior cosmetic patch: Once the outside is sealed, we use concrete caulk inside to finish the job.
This two-part method works well when the crack is thin but needs water protection.
Foundation Crack Repair for Large or Structural Cracks
What We Do When The Damage Is Deeper
Larger cracks or cracks that show movement need a structural fix. These can’t be solved with sealant alone.
Our process:
- Clean the wall: We remove dirt and debris from the crack and surface.
- Install injection ports: We drill holes every few inches and place ports into the crack.
- Inject with epoxy or polyurethane: We use the best material for sealing leaks or adding strength.
- Add carbon fiber staples: If needed, we stitch the crack with carbon fiber to hold it tight.
Key Takeaway: Large cracks need more than a cosmetic patch. Structural repair protects your home from future movement and water issues.
Need expert help with foundation crack repair? Contact KC Pier for a free consultation. We’ll inspect the crack, explain your options, and help you fix the issue the right way.
Cosmetic Crack Repair: When Looks Are the Main Concern
Sometimes, cracks don’t mean danger, but they still need attention. Cosmetic repairs improve the look of the wall without changing its strength.
Steps we take:
- Clean out the crack
- Fill it with concrete caulking
- Smooth the surface for a neat finish
This method is fast, affordable, and ideal for minor foundation settling.
When to Call a Professional
Foundation cracks aren’t all the same. If you’re not sure what’s causing yours, it’s best to have a trusted expert look at it.
Call us if:
- The crack is wider than 1/8 inch
- Water is leaking through
- You see stair-step cracks or bowing walls
- You want peace of mind before finishing your basement
In Summary
Foundation crack repair methods depend on the type and cause of the crack. Small, hairline cracks may only need sealing. Larger or growing cracks likely need injection or structural reinforcement. At KC Pier, we take the time to inspect each issue and recommend the best fix for your home.
Contact us to schedule a free consultation today to protect your home with expert foundation piering and crack repair.
