Concrete Repair
Cracks, pitting, and spalling ground, filled, and leveled before anything goes down.
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Professional Concrete Repair
A floor coating is only as good as the preparation underneath it. Cracks, spalling, pitted concrete, and old peeling paint must be properly addressed before applying a coating. Onyx technicians use industrial diamond grinding and high-strength polymer repair mortars to rebuild your concrete into a sound, level foundation.
Key Benefits
- Industrial diamond grinding creates the CSP profile required for permanent chemical adhesion
- Flexible and rigid polymer crack fillers rebuild pitted and spalled areas
- Eliminates trip hazards, control joint chipping, and surface hollows
- Included as standard in our comprehensive floor transformation process
Best Applications
- Cracked, spalled, or salt-damaged garage slabs
- Worn warehouse and manufacturing joint repairs
- Restoration of failed DIY or big-box paint jobs
- Pitted basement and commercial slabs
Our Professional Installation Process
Mechanical Grinding
Diamond tooling opens the concrete surface and removes all old contaminants.
Crack Routing & Repair
Cracks are chased with diamond blades and filled with deep-penetrating structural polyurea/epoxy.
Flush Grinding
Repairs are ground flush with the surrounding slab for an undetectable, seamless transition.
Concrete Repair Examples
Accurate representations of the concrete repair system.
Why Choose Onyx
We never skip prep. Cheap contractors acid-wash and paint over cracks; Onyx diamond grinds and structurally repairs every defect so your floor lasts for life.
Lifetime warranty on qualifying residential and commercial coating installations.
Concrete Repair FAQ
Concrete Repair by Application
How concrete repair fits specific rooms, properties, and industries.
- See our applications for where this system fits.
Buying & Maintenance Guides
Cost factors, comparisons, and care for concrete repair.
- Browse all flooring guides.
Explore Other Services
Get a Free Quote — Concrete Repair
Tell us about your concrete repair project and a Onyx team member will reach out.
We keep it simple — just First Name, Email, and Phone Number. No unnecessary questions.
GET YOUR FREE ESTIMATE
Answer a few quick questions and book your in-home consultation.
What Service Are You
Interested In?
Choose one — you'll continue automatically.
Floor Coating Ideas
Floor Coating Ideas for Denver Homes and Businesses
Explore coating options for garages, basements, patios, showrooms, and more across Denver, CO and surrounding areas.
Beck Q.
Garage floor coating
5.0A Garage That Feels Finished
A decorative flake finish gives the garage a more finished look and makes everyday cleanup easier.
Posted on Google
Terry O.
Basement floor coating
5.0A Basement Ready for Everyday Use
Give a bare concrete basement a clean, finished surface for a rec room, workshop, or extra living space.
Posted on Google
Lucky P.
Patios and pool decks
4.5A Fresh Look for Outdoor Concrete
Update the look of your patio or pool deck with a finish chosen for outdoor use and the way you spend time in the space.
Posted on Google
Cath C.
Home gym floor coating
5.0A Cleaner Look for a Home Gym
Finish the concrete beneath your workout equipment with a surface that's easy to sweep and wipe down between sessions.
Posted on Google
Karl B.
Showrooms and retail
5.0A Floor That Fits the Showroom
Choose a finish that complements your displays and gives customers a consistent look as they move through the space.
Posted on Google
Sarah C.
Auto service shop floor coating
4.5A Coating for a Hardworking Shop
Choose a coating system based on the traffic, equipment, and routine cleanup your shop floor sees every day.
Posted on Google
SERVING DENVER, COLORADO AND THE SURROUNDING AREAS
Serving Denver, CO and surrounding areas. Reach out for a free quote on your garage, commercial, or industrial flooring project.
Onyx Surface Coatings
Denver, CO