Great American Stone Sealers

Great American Stone Sealers handles stone sealing and cleaning work out of Southlake, Texas. They focus on travertine, marble, flagstone, limestone, brick and mortar repair, concrete sealing, calcium and mold removal, and full stone restoration for both homes and commercial spots. The crew covers Southlake plus Dallas, Frisco, Plano, and Keller. Reviewers name techs like Dan, Sam, Paul, and Kevin who show up to handle the jobs on site.

Customers call them for faded or discolored limestone on house fronts, dull marble around pools and patios, worn flagstone decks that need color brought back, travertine that has lost its depth, stamped concrete driveways and porches showing age, and bathroom vanities or fireplaces that need scrubbing and protection. The work usually involves thorough cleaning first, then sealer application, sometimes with polymer sand or mortar fixes. Folks note the stone looks revived and protected afterward, with some saying the last seal job held up for five years before needing another round. One review mentioned a densifying treatment on steps that did not hold and led to more cracking, while another noted sealer residue ending up in pool water.

They show up on time, answer calls and emails quickly, keep the process moving without dragging out the disruption, and charge what reviewers call reasonable rates with an occasional discount. The crew works efficiently, often finishing cleaning in an hour or two per area then returning the next day for sealing, and they take steps to protect nearby plants during exterior jobs. Service stays local to the listed towns with no mention of extended hours beyond standard daytime work.

Most reviews praise the results on color revival and clean finishes along with solid communication from the named techs. The company holds a Google rating of 4.9 from 138 reviews. DIRT Score 4.7 from reviews on Finds.

DIRT Score = confidence-weighted rating across verified review platforms. How is this calculated? →

“I recently purchased a new home and was very concerned about the discoloration of the limestone on the front of the house. After hiring Great American Stone Sealers, all of those concerns disappeared. Their team did a truly transformative job cleaning and restoring the stone, removing years of discoloration and bringing back its natural beauty. What impressed me most was not only the quality of their work, but also their willingness to educate me throughout the process. They took the time to explain the characteristics of my limestone, how to properly care for it, and what caused the discoloration in the first place. The results exceeded my expectations, and the front of my home looks incredible. If you're looking for knowledgeable professionals who take pride in their work and deliver outstanding results, I highly recommend Great American Stone Sealers Five stars!”

“We initially hired this company in March 2025 to treat our stone entry steps with their “densifying” service after being told it would stop the cracking and peeling and prevent further deterioration if maintained annually. We trusted their recommendation and spent a few hundred dollars. Less than a year later, this past February 2026, the stone was in even worse condition—cracking more and pieces breaking off. They came back, reassured us again that their treatment would at least stop the problem from getting worse, reapplied their solution, and charged us again. Within two weeks, the damage escalated to the point where entire slabs were falling off. At that point, we had no choice but to hire another company to fully replace the stonework. Had we been given honest guidance from the start, we would have avoided wasting time, money, and allowing the damage to worsen. Instead, we feel misled into paying for a service that did not deliver on its promises and may have delayed the proper repair our property actually needed.”

“Highly recommend! They did an amazing job cleaning and sealing all of the marble on our patio and around our pool. They were professional, knowledgeable, thorough, and really took their time to make sure everything was done right. The difference is incredible, and we couldn’t be happier with how it turned out. We will definitely use them again!”

“Dan was very knowledgable about the various sealer product options and guided us to a good solution. They had an efficient process, were on time and communicated effectively throughout the project. I would highly recommend Great American Stone Sealers!”

“My backyard is all flagstone and the Great American Stone Sealers crew did not miss a single spot in cleaning and sealing it. Their work was professional and efficient. The revival of the color depth is remarkable. This is the second cleaning and sealing of my flagstone. Great American Stone Sealers sealed it 5 years ago and told me it would last 4-5 years. It did! I look forward to 5 more years of enjoying the warmth and beauty that was brought out in the flagstone in this cleaning/sealing process.”

“Top notch company! Our stone never looked better! Sam and his crew did a fantastic job! I would highly recommend them!”

“My backyard has a large pool surrounded by a travertine patio. It was in need of full maintenance including cleaning, polymer sand for all the tiles, and sealant. I called a few companies and settled on Great American Stone Sealers (GASS) after review of their estimate. I always have very high expectations when I am paying my hard earned cash to a commercial company as I expect impeccable work. Well, GASS did not disappoint! Incredible work! The difference is like night and day. Wow, really impressive job. Looks like new. On time work, great communication, and solid outcomes. They surpassed my expectations. If you want a true professional and a job done right, call GASS. They’re the best!”

“The crew cleaned the deck in about an hour and then was allowed to thoroughly dry until the next day. When the crew returned, they sealed the deck in about an hour. We waited until the next day, about 17 hours later, we put furniture back in the cabana. It took a while before we did anything that involved water getting on the deck.”

“Very happy. We had a large travertine deck and fire pit cleaned, sanded and sealed. It looks great. The entire team was very detailed, professional and made sure we were happy. Highly recommend Great American Stone!”

“Eleven years of wear and tear had our bathroom vanity tops looking dull and dirty. After several hours of labor intensive work, Paul was able to bring them back to their original luster. His attention to detail was amazing. It was a pleasure having him in our home.”

“Great company to work with. Dan went above and beyond with communication and expectations. He answered every call and email. The guys did a wonderful job making the fireplace look like new and sealing it to protect it.”

“I am very pleased with the work Great American Stone did on the exterior of my home. They arrived on a timely basis, charged me a reasonable price (with a little discount), and Sam very patiently answered all my questions about the procedure. I will definitely use this company in the future.”

“If you have a dingy stone facade or cast stone accents on your home, I recommend this company. The pictures tell the story. Sam and Kevin prepped to protect my foliage from the cleaner they used - working for over two hours until all the stains were gone. These two were eager to please - going above and beyond, for a fair and reasonable price that fit my budget. A neighbor commented that my house looks brand new. I am a happy customer!”

“These guys do Amazing work! We now have a patio that looks better than it did when originally installed. Their cleaning method is second to none and with the sealer and color enhancer, we’ll have the same look for many years to come. Rick W Richardson”

“I am very happy with the service that I received from this company. I was told exactly what to expect and the delivery was awesome! I am very satisfied with the finished product of the resurfacing of my pool deck and patio, I highly recommend this company for services at you home or business, you will be as pleased as I am!”

“Their pressure washing service does a great job cleaning stone retaining walls and stone floors in outdoor kitchen. Removes mold from surfaces very well. Regarding their sealer service I don’t see much of difference with color enhancement and does not give the desired wet look to the stone. I don’t recommend using their service for stone enhancement on stone coping around the pool perimeter. The sealer ends up in the pool water leaving unsightly grease like residue floating on top of the water (see pics) and will have to hire a separate service company that I hope can removing the globs of grease floating in pool water. I hope it can be resolved as the pool looks horrible.”

“The team did a fantastic job on the stone removing all the discoloration and the seal used will protect it against the elements. The flagstone patio sparkles too! Thanks for all the hardwork taking care of our home.”

“We selected GASS from 3 bids we got to reseal our stamped concrete. Dan's bid was the middle in cost. The bids ranged from $2k to just under $5k. Dan was professional and demonstrated he knows a lot about working with concrete. He was timely, minimized the inconvenience of having all our home entrances out of commission as we couldn't use them after sealing until they dried. Our stained stamped concrete is 25 years old and showed its age. After sealing the back patio looked like new. The front porch looked good but was still faded from 25 years of afternoon sun. Both driveways were well worn. Sealer brought back some of the color, but signs of wear and fade were still visible. I would have liked to bring them all back to original luster but that may not have been possible. I recommend using GASS for your concrete sealing needs. They did a good job, kept their commitments.”

“Great American Stone did an amazing job sealing our marble table and I am looking forward to working with them again. Thanks to Sam and Dan for excellent customer service”

“This was my second time in about six years using this company and product. The results were fantastic. Most of the Slate patio kept the shine for about 5 years. Areas in the bright sun were a little less. Product really brings the color back to life.”