About GNL Granite Design | Stone Countertops in Slidell
GNL Granite Design is a company in Slidell, LA that specializes in fabricating and installing granite, marble, and quartz countertops. With over 11 years of experience, they have installed thousands of countertops in the Northshore area. Customers praise the company for its professionalism, quality materials, and excellent customer service. The staff is helpful and responsive, guiding clients carefully through the process from choosing the countertop to the final installation. Many customers appreciate how smooth and hassle-free the experience is, whether they are residential or commercial clients. The company is known for offering competitive prices and ensuring everything is exactly right, with on-time installations and attentive service from start to finish.
Working with Gabby, Nei, and Niya was professional and efficient. Installation was quicker than we expected. Finished product came out great. No complaints.
January 2026
The installer did a great job with my pantry countertop! He was extremely careful, no walls were dinged!
December 2025
I highly recommend this company GNL granite .. The installers were bad ass and my salesman even came to my house when issues where found and they corrected it that I made ..
