Get matched with top stone restoration & polishing pros in Newark, DE

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 10 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"He repaired cracked granite countertop and matched it perfectly. He then sealed and polished countertop. Found him to be very professional. Will definitely call him again."

"AGS was fantastic to work with, from Todd, the salesperson who came to my house, all the way to Luke who delivered a sink grid to replace the incorrect one I originally received. I had contacts with so many of the employees of AGS (Baris, Oscar, Baran, Tiffany, and more whose names I don’t remember) and each one was thoughtful, knowledgeable, helpful, and friendly. Their customer service is top-notch. I had a few minor glitches that were attended to immediately (e.g., the sink grid). I went to the showroom so I could actually pick out my granite stone. It was not a close ride but definitely worth it. The office staff and even the employees in the back with the stones could not have been more helpful. The "showroom" is really nice with lots of granite and quartz to choose from. I LOVE my new countertops, sinks, and faucet. I will definitely be recommending AGS to any of my friends who are in the market for new countertops."

"Patrick and his team were wonderful to work with for our stone and brick repointing! They came on time as scheduled for both the quote (which was very fair for the work that needed done) and actual work start date. The work they did looks amazing, and they took care to make the new sections of mortar have the same style as the old sections on our beautiful Victorian. Patrick even pointed out several other issues (some of which we were aware of), and prioritized them based on severity. We will happily be hiring them again for our masonry needs!"

"This is the second time we've hired John. He's responsive, punctual and very easy to work with. He cleans the work area daily and his work is impeccable. Before installation of the brick, he had to remove a Corian backsplash. This was his first brick backsplash and we couldn't be happier. In terms of cost, I couldn't tell you if he's high, low or average because he's' the only person I called. Also, the first time we hired him, about 4 years ago, he installed a porcelain tile floor which garners compliments all the time."

"An excellent experience from picking out the countertops to installation. The customer service reps and installation crew were courteous and knowledgeable. Pricing was excellent. We actually thought we were going to pay double the price. The job took less a week from beginning to end. Our kitchen looks beautiful!! We would recommend KOL Marble and Granite to anyone looking to purchase new countertops."

"After repair work was done, the shower is like new. The shield prevents the buildup of soap scum, making cleaning easier than ever. Also had my granite counters sealed. This is a great product, and the service I received was top notch."

"Everything went as expected and very well. We have had it for 5-7 years and I have no stains or scratches on it."

"Niko and Walt did an excellent and professional job of tearing out and installing a new backsplash in our kitchen and tile floor in our laundry room. The work was done promptly, clean and at a reasonable price. Will definitely use them again in the future if needed."

"The representative at the office explained everything about the install including the time frame. Everything went smoothly form the choice and approval of the slab, to the measurement and installation. Everything matched the time frame on the schedule and everything was done efficiently, from measuring to plumbing to old counter top removal and disposal to installation. I am thrilled with the outcome and would choose Colonial Marble and Granite for any future project."