OKLAHOMA CLAY DOESN'T
GO EASY ON CONCRETE
Oklahoma's expansive clay soil puts more stress on expansion joints than almost anywhere in the country. Here's what you're dealing with.
Cracked Driveways & Walkways
Failed joints let your slabs shift independently — leaving uneven edges, trip hazards, and cracks that spread over time.
→ Our #1 homeowner repairWeeds & Open Joints
Once the original filler rots out, the joint becomes an open bed of soil — and weeds come back every summer no matter how often you pull them. A sealed joint leaves nothing to root into.
→ Permanent weed preventionExpansive Clay Soil
Oklahoma's clay-heavy soil swells when it's wet and shrinks hard when it dries. Open joints let water in to fuel that cycle — pushing, dropping, and cracking your slabs every time the weather swings.
→ Primary cause of OK concrete failureWater Under Your Slab
Open or sunken joints channel water straight into the base beneath your driveway, washing out the support and causing slabs to sink and crack. Sealing creates a watertight barrier.
→ Long-term waterproofing
Washout and freeze-thaw — the two failure sequences we stop before they start.