Get matched with top retaining wall installers in Sewickley, PA

"Cullen was able to turn the mess which was left from a previous contractor into a beautiful backyard. He was responsive to our questions. His crew was great! They got the work done timely and the results were awesome! We will definitely use Cullen and his team in the future for any landscaping needs."

"Rick and his crew transformed my jungle of a backyard into a nice, neat patio encircled by mulch where I can have plants I want and not the mass of weeds I had. I was pleased with the results."

"P&M Did our driveway and retaining wall, we love it, and under budget 5 Star Company!"

"This is a job that began as a deck repair. As they uncovered more issues, they would show us just what they were seeing and explain their concerns. It got to the point where we decided to go for a whole rebuild rather than multiple repairs down the road. The other quotes we got were for a repair so I honestly don't know where they would've landed price-wise compared to others. To be honest, they were not the least expensive quote for the repair, but their plan for how to repair it was better. I appreciated their expertise and professionalism."

"Duane did an excellent job on the new retaining wall. Very high quality work. His communication was very good throughout. I highly recommend Duane for any work and would hire again. "

"Iʼm delighted with the retaining wall completed by NLC Landscaping. From the initial consultation to the final installation, they were professional and communicative. Nazar explained all details and answered all questions that I had. I am very impressed with the quality of work and level of service provided. I highly recommend this company for any retaining wall projects."

"He is prompt in responding to your request. "

"Excellent, professional, fair quote"

"Very professional and friendly!"

"Disappointing Job Completion. Walt's crew came out in mid April (2025) to replace the concrete slab/stoop in front of our door. The crew completed the job within two days once it was scheduled; another person came back at a later date to remove the forms. The top edge and sides of the slab have a nice, uniform look. However, the entire bottom edge was left jagged. The previous slab which they replaced had a smooth, uniform bottom edge. I texted Walt with my concern about the jagged condition the bottom edge of the new slab/stoop was left in. Walt told me the only thing he would be able to do is send someone out with a grinder. That was in May. To date, no one has come out from Stonewall Excavation, LLC. No texts, no calls. I gave ample time for someone to come out. I texted Walt in July to confirm that someone would indeed be coming by to do the grinding. He didn't respond to my texts. Guess he blew it off."