Custom Marble and Onyx
Countertop Fabricator in Modesto, California

Customer Reviews
About Custom Marble and Onyx
Custom Marble and Onyx is a Modesto, California stone fabricator with a strong 4.3-star rating across 16 customer reviews, making them one of the better-rated countertop providers in the area. The business name tells you exactly what they focus on: premium natural stone, specifically marble and onyx, materials that require skilled hands to fabricate well. Modesto's mix of established neighborhoods and new construction keeps demand for quality stone work steady. Reach them at (209) 531-2200.
Materials
Services
Services and Process
Custom Marble and Onyx fabricates and installs custom stone countertops for kitchens and bathroom vanities throughout the Modesto area. Their fabrication work involves cutting slabs to exact dimensions, finishing edges with profiled details that range from clean contemporary lines to more traditional decorative edges. Sink cutouts are part of the package, ensuring your sink fits flush and clean in the finished stone. Every project starts with a template and measurement visit to confirm dimensions before fabrication begins.
What Sets Them Apart
Marble and onyx are among the most visually striking but technically demanding natural stones to fabricate. Marble can crack if not cut and handled correctly, and onyx requires careful backlit planning if you want the translucency effect. A shop built around these materials brings a level of stone-specific expertise that general fabricators may not match, which is worth considering when you're investing in premium countertop materials.
How the Process Works
Your project starts with a free estimate where you'll explore stone options and talk through the design details. A template visit follows, where your cabinet layout is measured precisely so nothing gets lost in translation from design to fabrication. The slab is then cut, edged, and prepped in the shop before arriving at your home for installation. Final fitting, seaming, and sealing happen on install day, leaving you with a finished countertop ready for everyday use.
Service Area
Custom Marble and Onyx serves Modesto and the broader Stanislaus County area. Surrounding communities including Turlock, Oakdale, and Salida fall within typical service range for a Modesto-based fabricator. Contractors and designers working on projects across the Central Valley are encouraged to reach out.
Specialties
Frequently Asked Questions
What makes marble and onyx more challenging to fabricate than granite or quartz?
Is onyx a practical choice for kitchen countertops?
How does the 4.3-star rating reflect on their work quality?
Can Custom Marble and Onyx fabricate other stone types beyond marble and onyx?
How should I care for a marble countertop after installation?
What edge profiles are best suited for marble countertops?
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