Denver's Concrete Experts
Built to endure Colorado’s toughest weather. Serving Denver’s homes and businesses with precision since 2011.
Our Services
Professional concrete solutions tailored to your needs.
Concrete Driveways
Heavy-duty driveways built to resist cracking from freeze-thaw cycles.
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Stamped Concrete Patios
Low-maintenance outdoor living spaces with the look of stone or brick.
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Foundation Repair
Stabilize sinking or cracked foundations in Denver’s problem soils.
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Commercial Sidewalks
ADA-compliant pathways built to Denver’s municipal specs.
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Retaining Walls
Structural walls to tame sloped lots in Denver’s foothills.
Learn More →Financing That Works With Your Goals
We believe every customer deserves access to top-quality concrete services. That's why we offer flexible options to fit any budget. No stress, no surprises — just a clear path forward.
- Low monthly payments
- Quick approval process
- No hidden fees
Full protection on every project
Certified professionals
Industry-leading warranty coverage
Trusted By Our Community
Onyx transformed our Wash Park backyard with a slate-pattern patio that’s survived two hailstorms already. The crew worked around our giant silver maple roots without damaging them. Even our landscaper was impressed with the drainage slope.
Our 1962 Arvada ranch had a 3” floor dip near the fireplace. Onyx installed 8 piers in one day—no mess. Two years later, everything’s still perfectly level. Worth every penny to stop the door jams.
Finally a driveway that doesn’t crumble every winter! The heated mats they embedded melt snow fast. Bonus: the dark gray color hides oil stains from my work truck.
After our Lakewood hillside collapsed in that spring downpour, Onyx built a 6’ wall with natural stone texture. It blends perfectly with the neighborhood and stopped the erosion. Crew was in/out before our kids got home from school.
As property manager for a LoDo retail complex, I appreciate how Onyx handled all the ADA compliance details. Their concrete crew worked nights to avoid disrupting tenants, and the city inspector had zero corrections.
Our Highlands Ranch HOA is picky about materials. Onyx nailed the approved color and even added subtle leaf imprints to match the community’s aesthetic. Three summers later, not one single crack.
We'll Guide You Through!
From first call to final walkthrough, here's what to expect.
Contact Our Team
Reach out by phone or through our online form. We'll schedule a time that works best for you.
Inspection
Our certified team will thoroughly evaluate your needs and provide a detailed, transparent estimate.
We Get to Work
Our experienced crew handles everything — from materials to cleanup — with precision and care.
Final Walkthrough
We walk through the completed project with you to ensure every detail meets our high standards.
A Local Business For Your Local Community
Onyx Concrete is proud to serve our neighbors with honest, quality service. We're not just a concrete company — we're your community partner dedicated to delivering excellence. Every project we take on reflects our commitment to quality and the trust our customers place in us.
Serving CO and Beyond
Proudly providing top-quality concrete services throughout the region.
Why Choose Onyx Concrete
Excellence
We hold ourselves to the highest standards on every single project — no shortcuts, no compromises.
Community
We're your neighbors first. Every project we complete strengthens the community we call home.
Integrity
Honest pricing, transparent communication, and doing what we say we'll do — every single time.