“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.”
Client Reviews
5.0/5 average rating from 6+ happy clients
What Our Clients Say
Real feedback from homeowners and businesses who trust Onyx Concrete to get the job done right.
“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.”