I highly recommend Robert, Zach and their crew. Installation went smoothly and all parties involved in the work from the electrician to the concrete were easy to work with and showed up in a timely manner, weather permitting. The quality of the work was great. They are genuinely friendly people who care about the installation and quality of their work. Communication was timely anytime I had questions or concerns. The ease of maintenance of the fiberglass has been a highlight as well as the salt system. I hope to see many years of enjoyment and can’t wait til spring to uncover it and have another fabulous summer!

Cornerstone Construction not only installed a pool for us but they had to do major work on the area where the pool was to be built. They leveled the ground in places, built up the ground where needed and built a beautiful retaining wall. They also installed a fence. They close our pool in the winter and open it back up in the spring. Robert and Zach are amazing to work with. They are very professional and friendly. I highly recommend this company!!!!

Great local family owned Kingsport company. Doing business as it should be, with attention to detail and customer service. Rob and Zach share 25 plus years of experience in this industry and are willing to go the extra mile to take care of their customers. Highly recommended.

Great family friendly service. Being a first-time pool owner I was a little nervous with the winterization process. The owner and staff answered every question taking great care to put me at ease. I will continue to use cornerstone in the future and highly recommend them to everyone!

We had a fiberglass pool installed and have been very happy with our pool. Zach also came back and helped with the winterization and the placement of the winter cover which was above and beyond his responsibility to us. We recommend Cornerstone to anyone wanting a pool installation.