Foundation cracks are more than just cosmetic—they can lead to water leaks, structural issues, and expensive damage if ignored. At RC Waterproofing, we’ve spent over 46 years helping homeowners across Michigan fix cracks before they become a major problem.
Our crack repair services are trusted by homeowners in Flint, Davison, Grand Blanc, the Great Lakes Bay Region, and surrounding areas. Whether it’s a thin hairline fracture or a large horizontal crack, we have permanent solutions that restore the strength of your foundation and protect your home from future water intrusion.
Common Causes of Foundation Cracks
✅ Hydrostatic Pressure – Water in the soil around your home puts constant pressure on your foundation walls. Over time, this leads to cracking.
✅ Drought and Soil Shrinkage – In dry periods, soil pulls away from the foundation, removing support and causing movement.
✅ Poor Drainage – Water pooling near the foundation increases the risk of cracks.
✅ Improper Grading – Sloping that drains water toward your home creates long-term stress.
✅ Freeze-Thaw Cycles – Water that seeps into cracks can freeze and expand, making small cracks worse.
Types of Foundation Cracks We Repair
1. Vertical Cracks
Often caused by settling, these are common and typically easy to repair with injection methods if caught early.
2. Diagonal Cracks
These may indicate uneven settling and require more evaluation to prevent shifting and future movement.
3. Horizontal Cracks
A serious sign of hydrostatic pressure pushing inward. These often accompany bowed walls and may require carbon fiber reinforcement or wall braces.
4. Stair-Step Cracks
Usually found in block or brick foundations, these can signal structural movement and often allow water seepage.
5. Hairline Cracks
Though small, they can widen over time and let in moisture—especially during freeze-thaw cycles or rainy seasons.
Our Crack Repair Process
🔍 1. Free On-Site Inspection
We assess the cracks, surrounding structure, and exterior conditions like drainage or grading issues.
🛠️ 2. Customized Repair Plan
We create a tailored plan for your foundation—no cookie-cutter solutions or pushy sales tactics.
💧 3. Crack Sealing and Injection
We use epoxy or polyurethane injection depending on the crack type and purpose (structural vs waterproofing). These materials bond the wall back together and prevent water infiltration.
🧱 4. Reinforcement (If Needed)
For more serious cracks, we may install carbon fiber straps or Gorilla Wall Braces to stabilize the wall and prevent further bowing or movement.
✅ 5. Final Walkthrough
We review the repairs with you and leave your basement clean and dry—with full peace of mind.
Service Area
We proudly serve homeowners across Michigan, including:
- Flint
- Grand Blanc
- Davison
- Mount Morris
- Saginaw
- Bay City
- Midland
- Birch Run
- and more…
Not sure if you’re in our service area? Contact us here or call 1 (866) 997-3948.
Why Choose RC Waterproofing?
✔️ 46+ Years of Experience
✔️ Permanent Crack Repair Solutions
✔️ Xypex Crystalline Waterproofing Technology
✔️ Family-Owned & Operated
✔️ No High-Pressure Sales
✔️ Licensed, Insured & Local
We don’t just repair cracks—we protect homes.
FAQs About Foundation Crack Repair
How do I know if a crack is serious?
Hairline cracks may be harmless, but wider or horizontal cracks, cracks that leak water, or any that continue to grow should be inspected right away. We offer free inspections to assess severity.
Will you just seal the crack?
Not exactly. We inject cracks with high-strength epoxy or polyurethane to bond the foundation and stop water entry. For structural cracks, we add reinforcements like carbon fiber or wall braces.
Can cracks be repaired from inside the basement?
Yes! Many foundation cracks—especially those leaking water—can be permanently repaired from the inside using injection systems without exterior excavation.
Is foundation crack repair expensive?
Crack repairs are generally far more affordable than letting a small issue turn into structural failure. Most jobs are a fraction of the cost of full foundation replacement or major water damage cleanup.
Do cracks come back after repair?
Not with our methods. We use permanent injection and reinforcement systems backed by decades of success. Plus, we’ll address what caused the crack in the first place.
Do you fix block wall foundations?
Yes! Whether poured concrete or block walls, our team knows how to repair all types of foundation cracks.
What about bowed walls?
We specialize in bowed wall repair using Gorilla Wall Braces or carbon fiber straps—both installed cleanly inside your basement with no digging required.
Schedule Your Free Crack Repair Estimate
A small crack today can become a major headache tomorrow. Let RC Waterproofing give you peace of mind with expert crack repair that lasts.
📞 Call us today at 1 (866) 997-3948
💬 Or request a free inspection online
