Concrete Joint Sealing in Milwaukee, Madison, Green Bay & Northern Illinois

Concrete is usually installed with expansion joints that provide wiggle room for the pavement. Concrete expands and contracts with fluctuating temperatures, and keeping expansion joints makes space to accommodate slight changes without cracking. 

These joints are also key to the concrete withstanding stress from heavy vehicles. Essentially, concrete expansion joints allow for controlled movement and cracking that prevent a total breakdown of the parking lot.

However, concrete joints also require routine maintenance. They should be sealed regularly so water and dirt can’t seep in and damage the concrete’s base. Unsealed joints can also lead to subbase pumping when heavy trucks drive over them, damaging the lot’s crucial support system. 

The sealing process is usually simple. The small gaps are typically filled with some sort of absorbent material, such as foam, felt, wood or sand. Investing in this service annually gives you benefits like:

• Less moisture damage: Joint sealing keeps water from underneath your concrete slabs. Water penetration can erode the soil or encourage mold growth. When temperatures freeze in winter, it could even cause cracks and potholes to form.
• No dirt and debris in your joints: Wind and rain can cause your expansion joints to fill with dirt and debris. When they’re sealed, there’s nowhere for the debris to settle.
• Improved safety: Potholes can be a major safety hazard in a parking lot. Sealing your joints prevents this.