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Concrete Crack Repair photo

Flagstaff Epoxy Pros

Concrete Crack Repair in Flagstaff, AZ

Concrete crack repair in Flagstaff, AZ using injection methods built for freeze-thaw movement. Free estimates.

  • 15+ Years local experience
  • 500+ Projects completed
  • Licensed & Insured

Serving Flagstaff and nearby communities.

Freeze-thaw cycling is the direct cause of most recurring cracks in Flagstaff garages and patios. Water gets into a hairline crack, freezes, expands, and the crack grows a little wider every winter. A surface patch doesn't stop that cycle.

Flagstaff Epoxy Pros routs and fills cracks with material matched to how the slab moves, not a one-size-fits-all filler from a tube.

What's included

What's Included with Concrete Crack Repair

Typically included Optional Customer prep

  • Crack assessment and classification
  • Routing and cleaning of the crack
  • Injection or pour-in filler, finished flush with the surface
  • Polyurea flexible filler for active-movement cracks
  • Coating application over the repaired area
  • Structural evaluation for wider or spreading cracks
  • Point out every crack, including small ones near corners or joints
  • Note whether cracks have reopened after a previous patch

How it works

How Our Concrete Crack Repair Process Works

  1. Crack Assessment photo
    Step 1

    Crack Assessment

    Cracks are measured and classified to determine the proper repair method.

  2. Debris Removal photo
    Step 2

    Debris Removal

    Loose material and dust are cleared from the crack before repair begins.

  3. Crack Widening photo
    Step 3

    Crack Widening

    Cracks are slightly widened to allow repair material to bond effectively.

  4. Filler Injection photo
    Step 4

    Filler Injection

    A repair compound is injected or poured into the crack to fill the void.

  5. Surface Leveling photo
    Step 5

    Surface Leveling

    The repaired area is leveled flush with the surrounding concrete surface.

  6. Final Sealing photo
    Step 6

    Final Sealing

    A sealant is applied over the repair to prevent moisture intrusion.

Materials

Materials and Methods for Concrete Crack Repair

  • Epoxy Crack Filler photo

    Epoxy Crack Filler

    A rigid filler for static cracks that have stopped moving, common on older slab sections.

  • Polyurethane Crack Sealant photo

    Polyurethane Crack Sealant

    Flexes with the slab, a better fit for cracks that keep moving each winter.

  • Semi-Rigid Repair Paste photo

    Semi-Rigid Repair Paste

    Fills narrow cracks while keeping some give against freeze-thaw stress.

  • Concrete Bonding Agent photo

    Concrete Bonding Agent

    Ensures the repair actually grips the old concrete instead of popping loose.

  • Joint Filler Compound photo

    Joint Filler Compound

    Built specifically for expansion joints that see seasonal movement.

  • Surface Patch Mix photo

    Surface Patch Mix

    Restores texture around the repair so it blends with the surrounding slab.

DIY vs pro

DIY vs Hiring a Pro for Concrete Crack Repair

DIYHire a pro
Fine for a single hairline crack with no movement, using a basic store-bought fillerNeeded when cracks are active, widening, or reappearing after a previous patch
Reasonable for cosmetic touch-ups on a slab you're not planning to coatWorth it before any coating project, since coating over an unrepaired crack just telegraphs the problem through the new finish
Risky on wider or spreading cracks, where store-bought filler often fails to bond or flexes the wrong way under freeze-thaw movementMatches the filler type to the crack's movement pattern, instead of guessing with one product for every crack

FAQs

Concrete Crack Repair FAQs

Can you epoxy a garage floor that already has cracks?

Once the cracks are routed and properly filled first. Coating over an unrepaired crack just means it shows through later.

Does epoxy flooring crack in freezing temperatures?

The coating itself doesn't crack from cold. It's the slab movement underneath from freeze-thaw cycling that causes cracks to reopen or widen.

How much does concrete crack repair cost?

Pricing depends on the number of cracks, their length, and whether they're active or static. Request a free estimate for an honest number.

Do I need a permit for crack repair?

Cosmetic crack repair usually doesn't need one. Larger structural slab repair might, so check with your jurisdiction if the damage looks significant.

When should I call a pro instead of patching it myself?

If cracks are widening, spiderwebbing, or coming back after a prior DIY patch, it's time for a proper injection repair.

Next step

Get a Concrete Crack Repair Estimate in Flagstaff

Call Flagstaff Epoxy Pros at +1 (928) 395-6345 or request a free estimate before cracks get worse next winter. Back to Home, or pair this with Garage Floor Epoxy Coatings once the repair's done.

Ask about Concrete Crack Repair

Tell us about the project and how to reach you.

Call (928) 395-6345