Concrete Repair Services › Control Joint Sealing
Control Joint Sealing in Ann Arbor, MI
Control joints are the shallow cuts made in fresh concrete to guide where cracks form as the slab dries and moves. Left open, they collect water, salt, and debris that destroy the edges from the inside out. Sealing them properly means cleaning the joint, setting the right backer material, and applying a sealant flexible enough to move with the slab without tearing. Many homeowners don't realize these joints need maintenance until the saw-cut edges start chipping off in pieces.
Ann Arbor Concrete Repair Pros provides control joint sealing for homeowners across Ann Arbor, MI. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need Control Joint Sealing
- Driveway saw cuts are collecting road salt and the edges are pitting badly each spring
- Basement floor control joints are letting groundwater seep up during heavy rain events
- Sidewalk panels have open joints that are filling with dirt and growing weeds
- New concrete was poured but the contractor never sealed the saw cuts before winter hit
How It Works
Our Process for Control Joint Sealing
- 1
Joint Cleaning
We blow out all debris and use a wire brush or angle grinder to clear loose material from joint walls and edges.
- 2
Depth Check
Control joints need a specific depth-to-width ratio for sealant to work correctly. We verify and route if the joint is too shallow.
- 3
Backer Rod Placement
Closed-cell backer rod is pressed into the joint at the right depth so sealant bonds to walls, not the bottom.
- 4
Sealant Application and Tooling
We apply the sealant, tool it slightly below flush, and allow cure time before the surface takes any foot or vehicle traffic.
Ann Arbor Context
Why this matters in Ann Arbor
Ann Arbor gets significant freeze-thaw cycling, and open control joints on driveways are a primary entry point for the water that causes full-panel heaving. Properties near Huron River low areas also see higher groundwater pressure pushing through basement floor joints.
Straight Talk
About pricing & scope
The number of linear feet and condition of the joint edges are the main cost drivers. Joints with badly chipped edges need grinding or edge repair first, which adds time before sealing can start.
What This Fixes
Problems We See in Ann Arbor
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