At JG Granite and Marble, we specialize in custom countertops for homeowners and builders across the northern Denver suburbs. From Thornton to Louisville, our team delivers expert craftsmanship in granite, quartz, and marble countertops for kitchens, bathrooms, islands, and commercial spaces.
Every project is custom fabricated to fit your exact layout, ensuring a seamless look that’s both beautiful and durable. Our team handles everything from precise measurements to professional installation, so you get countertops that not only look amazing but stand the test of time.
Here are a series of tools that you may use today to help you plan your remodeling project
Click here to launch teh kitchen design app

We proudly serve residents and businesses in:
Thornton, Westminster, Northglenn, Broomfield, Brighton, Commerce City, Federal Heights, Erie, Lafayette, Louisville, Firestone, Frederick, Dacono, Henderson, Fort Lupton
No matter the size of your project, JG Granite and Marble brings expertise, high-quality stone, and attention to detail to every countertop. Whether you’re upgrading your kitchen, remodeling your bathroom, or adding custom stone to a commercial space, we make the process smooth, professional, and tailored to your needs.
Premium Materials: Granite, marble, quartz, and quartzite from trusted suppliers
Custom Fabrication: Every slab measured and cut for a perfect fit
Professional Installation: Flawless edges, minimal seams, and long-lasting finishes
Local Expertise: Serving all northern Denver suburbs with personalized service
Experience the difference of custom stone countertops made by experts who care. Contact JG Granite and Marble today to start your project.