Crack Repair in Simcoe County & the GTA

Concrete crack repair in Simcoe County and the GTA before coatings or finishing. Assess movement, edge damage and the surrounding slab first.

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Repaired cracks in a concrete floor slab

Crack Repair

Crack repair begins by reviewing the crack pattern and the condition of the surrounding concrete. Cleaning, opening and filling methods depend on the defect and the intended floor finish.

Not every crack is the same

Hairline shrinkage cracks, cracks with displaced edges, cracks that open and close with the seasons, and cracks that let water through all need different treatment. A static crack can usually be routed or ground open, cleaned and filled with a rigid epoxy or polyurea filler so the floor reads as one surface. A crack that moves needs a flexible treatment, or must be carried through the new floor as a joint, otherwise the coating will simply crack again along the same line.

How cracks are repaired before coating

The crack and surrounding concrete are assessed for movement, displacement and moisture.
The crack is opened mechanically and loose material removed.
A repair material compatible with the planned system is installed and ground flush.
The area is prepared together with the rest of the slab before the coating goes down.

Spalled or pitted areas around cracks are rebuilt during the same step. For garage and exterior slabs exposed to road salt and freeze-thaw, see our guide to moisture and substrate systems and the blog post on reading a garage floor after winter.

Common questions

Will repaired cracks show through the new floor?

Static cracks that are properly filled and ground flush are usually hidden by flake or broadcast systems. Some may remain faintly visible in solid colours. Moving cracks can reappear unless they are treated as joints.

Do structural cracks get repaired the same way?

No. Wide, displaced or growing cracks may indicate a structural issue that needs an engineer's assessment before any floor finish is installed.

Tell us if a crack changes with the seasons, admits water or has uneven edges. Active movement and significant displacement may need further assessment before a cosmetic floor finish is selected.

This is part of our concrete repair & restoration service. Related work: joint filling, moisture & substrate systems and concrete surface preparation.

Further reading: Epoxy Floor Repair: How to Fix Peeling, Cracking, and Failed Garage Coatings and Scaling, Pitting and Spalling: Reading an Innisfil Garage Floor After Winter.

Service Inclusive

Every project may include:

Damage Survey

For crack repair, every repair starts with the cause, not just the crack.

Crack, joint and spall mapping
Movement and moisture checks
Load and traffic review

Repair Preparation

Damaged areas are opened so repairs can bond.

Routing and chasing of cracks
Loose concrete removed
Edges squared and cleaned

Supporting Work

Related work that makes the repair last.

Surface preparation around repairs
Coating or polish compatibility
Joint re-cutting where needed

Crack Repair Work

The steps carried out on site for this system.

Cracks routed or chased open
Repair material chosen by movement
Repairs ground flush with the floor

Finishing Repairs

Repairs are made level with the surrounding floor.

Repairs ground flush
Joints re-established
Surface ready for coating or polish

Crack Repair Handover & Care

Findings are explained so the floor is maintained.

Repair locations noted
Movement to monitor
Next-step recommendations

Surface

Floor Performance Depends On:

Crack Movement

Moving cracks need flexible repair.

Crack Cause

Shrinkage, settlement or load.

Substrate Condition

Overall soundness of the slab.

Moisture Exposure

Water reaching cracks and joints.

Traffic Conditions

Loads crossing the repairs.

Environmental Exposure

Freeze-thaw and road salt.

Coating Compatibility

What will go over the repair.

Long-Term Durability

Repairs that last, not just patch.

Concrete crack repair before a floor coating

Crack repair work by Epoxy Boss in Ontario

Filling floor cracks before an epoxy system

Why Epoxy Boss

Epoxy Boss operates as a concrete surface preparation and protection company specializing in technical flooring systems across Ontario.

Our operational structure includes:

specialized installation crews
industrial-grade preparation equipment
project management systems
field supervision
structured quality-control procedures
commercial-scale operational capability

Projects are approached through:

substrate analysis
preparation-first installation
environment-specific system selection
moisture management
operational workflow planning
long-term durability objectives

The company maintains:

Epoxy Boss has completed projects ranging from residential garage systems to large-volume industrial operations for manufacturing and commercial facilities across multiple sectors.

WSIB coverage
structured operational workflows
safety compliance standards
commercial project coordination systems
large-scale production capability

Because high-performance flooring is not defined byappearance alone. It is defined by how the surface performs under years ofreal operational use.

Coated concrete floor by Epoxy Boss in Ontario

FAQ

How do I know if a crack is structural?

Most garage and basement cracks are shrinkage cracks from the concrete curing, and they're routinely treated before coating. We're a flooring contractor, not engineers, so we won't tell you a crack is structurally safe. Signs worth an engineer's opinion include a crack that's growing, one side sitting higher than the other, doors that have started sticking, or visible settlement.

Can you fix a spalled concrete step or porch?

Porches and steps take salt and freeze-thaw directly. Where the damage is at the surface, we remove the weak concrete and rebuild with a repair mortar suited to exterior exposure, then protect it. Where the concrete is deteriorated through its depth or the step has moved, repair may not last, and replacement by a concrete contractor is the honest answer.

What should I check on my garage floor after winter?

After the snow is gone, wash the floor and look closely at the first few feet inside the door and the wheel paths. Flaking and pitting suggest salt and freeze-thaw damage. New or widening cracks are worth noting. White residue is dried salt that should be washed off. If you're considering a coating, photographs of these areas help us give you a better idea of what the repair will involve before we visit.

What's the difference between scaling and cracking?

Scaling is loss of the top layer of concrete, usually in patches, and is commonly linked to freeze-thaw exposure with de-icing salts. Cracking is a break through the slab, which can come from shrinkage as the concrete cured, settlement, or movement. Most garage cracks are shrinkage cracks and can be treated before coating. Cracks that are widening, uneven across the break, or accompanied by settlement are a different matter, and a structural engineer should look at those before any coating decision is made.

Why does my garage floor flake near the door?

The first few feet inside a garage door take the most punishment in an Ontario winter: snow falls off the car, melts, pools with dissolved salt, and freezes again when the door opens. That zone also has the widest temperature swings. Surface scaling — thin flakes coming away — often starts there, and it can also point to a weaker surface layer from how the slab was originally finished. We assess it before recommending anything, because the fix depends on how deep the damage runs.

Can a salt-damaged garage floor be repaired before coating?

Salt damage typically shows as scaling, pitting and spalled edges, and the first job is to find out how deep it goes. We grind until we reach sound concrete, then rebuild the damaged areas with a compatible repair material and grind them flush before any coating goes down. Coating directly over scaling usually fails, because the coating is only as strong as the layer it's bonded to. If the damage is deep or structural, repair alone may not be the answer, and we'll say so.

Can you install over cracked or pitted concrete?

No. We never install over damaged concrete. Full surface restoration and crack repair are part of our preparation process, because a coating is only as good as the slab beneath it.

My house is older. Can you still coat the garage?

Usually yes. Age by itself is not the problem — moisture coming up through the slab is, and a lot of older houses here were built without a barrier underneath.

We check the slab before quoting. If the reading is high we put a barrier down first; if it is clean, nothing extra is needed.

Do you fix cracks and chipped edges first?

Yes. Cracks, chipped edges and failed patches are repaired as part of the preparation, not treated as an extra afterwards.

A coating does not bridge a moving crack on its own, so the repair has to happen first if the finish is going to stay flat.

Can damaged concrete be repaired before installation?

Yes. Crack remediation, joint stabilization, moisture mitigation and substrate correction are commonly performed before flooring installation.

Can epoxy flooring be installed over damaged concrete?

Damaged concrete often requires crack remediation, surface correction, resurfacing or substrate stabilization before flooring installation. Surface condition directly affects long-term system performance.

Can cracks be waterproofed?

Yes. Waterproof crack injection and crack remediation procedures may be integrated into waterproofing systems to help prevent moisture infiltration through damaged concrete areas.

Related: concrete crack repair.

Can coatings be installed over damaged concrete?

Damaged concrete often requires grinding, crack remediation, resurfacing or substrate correction before coating installation. Surface condition directly affects long-term system performance.

Ready to Upgrade Your Floors?

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EPOXY BOSS

How we work

First Contact

Reach out by phone, email or our online form. We'll ask a few questions about your space, how it's used and the finish you have in mind, and review photos if you have them.

Quotation

Get a clear and accurate price using our online calculator for instant estimates, or connect with us directly for a detailed quote. For more complex projects, we can schedule an on-site visit to finalize all details.

Decision making

We help you choose the right system, finish, and colours based on your goals. From flake to solid or metallic systems, you will have full clarity and confidence in your selection.

Scheduling + 50% Deposit

Once everything is confirmed, we lock in your project date. A 50% deposit secures your spot, allowing us to allocate materials and crew accordingly.

Day of the project

Our team completes full surface preparation including grinding and crack repair, followed by precise application of your selected multi-layered system based on manufacturer specifications.

Project Review

We walk through the finished space with you to ensure satisfaction. After approval, the remaining 50% balance is collected and the project is officially completed.