Crack Routing & Sealing
CRACK ROUTING & FLEXIBLE SEALANT REPAIR
Routing and sealing involves using a concrete saw or router to widen the crack to a uniform width, cleaning the routed channel, installing a backer rod, and filling with flexible polyurethane or silicone sealant. This method works well for surface cracks in driveways, patios, sidewalks, and garage floors where appearance matters and some movement is expected. The flexible sealant accommodates thermal expansion and contraction without re-cracking.
Starting at $5 per linear ft
Key Highlights
Clean, uniform channel
router creates consistent width for proper sealant depth-to-width ratio.
Flexible sealant
polyurethane or silicone accommodates thermal movement without re-cracking.
Cost-effective
significantly less expensive than full slab replacement for surface cracks.
Why Choose Our Crack Routing & Sealing
Routing and sealing is the most practical repair for surface cracks in driveways, patios, sidewalks, and garage floors. We router-widen cracks to a uniform width, clean the channel, install backer rod for proper joint geometry, and fill with flexible sealant that expands and contracts with temperature changes.
Signs You Need Crack Routing & Sealing
1. Surface cracks in flatwork
Cracks in driveways, patios, or sidewalks that are unsightly or allowing water infiltration but the concrete is otherwise sound.
Our Process
Step 1 — Routing
Use a concrete router to widen the crack to uniform width and depth.
Step 2 — Clean and prep
Clean routed channel, install closed-cell backer rod at proper depth.
Step 3 — Seal
Fill with flexible polyurethane or silicone sealant, tool smooth, and allow to cure.
Brands & Materials
- Sikaflex polyurethane sealants
- Dow Corning silicone
- Quikrete crack repair
FAQs About Crack Routing & Sealing
Can sealed cracks be colored to match?
Yes. Self-leveling sealants are available in gray tones that blend with most concrete. Sand can be broadcast into wet sealant for texture matching. The repair will always be visible up close but becomes much less noticeable from standing height.
Pricing
$5 - $15
per linear ft
*Varies by project scope and site conditions.
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