
Built by Family.
Built to Last.
A family-owned flooring and concrete coating company built on honest work and proper preparation — serving Denver, CO and surrounding areas from Denver, CO.
Our Story
Onyx Surface Coatings was started after noticing a lack of high-quality, dependable contractors in the local area. Too many floors were being rushed or improperly prepared, leaving homeowners and businesses with coatings that failed long before their time.
William operates the company together with his two sons — a true family business. Together they set out to do flooring differently: honest work, clear communication, quality craftsmanship, proper preparation, dependable service, and a genuine commitment to serving the local community.
Quality You Can See
A look at the durable, professionally prepared flooring systems Onyx installs across Denver, CO and surrounding areas.




Family-Owned & Operated
William and his two sons run every project with personal accountability.
Quality Over Speed
We prioritize proper preparation over rushed 1-day installs. Durable floors take the right process.
Our Commitment to Customers
Honest work and clear communication from the first call through the final coat.
15-Year Warranty
Lifetime warranty on qualifying residential and commercial coating installations.
Areas We Serve
Serving Denver, CO and surrounding areas.
Services We Provide
Onyx provides both residential garage flooring and specialized concrete and flooring solutions for commercial and industrial environments.
Areas We Serve
Onyx Surface Coatings provides concrete floor coatings throughout the Denver metropolitan region.
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
Get Your Free Quote
Let's build a floor that lasts. Tell us about your project.
Get a Free Quote
Tell us about your 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.
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