Profile: Master Dry specializes in providing foundation repair services. Our helical pier system is used for lighter structures, porches, patios, and other structures that are sagging & show fatigue. Helical piers are mechanically screwed into the soil to assure permanent stabilization. They are usually installed with small construction equipment. Our helical wall anchors include a long rod and a corkscrew-like helical shaft that mounts to the wall plate on the inside of the foundation walls. Our crawl space jacks are adjustable metal beams that are easily installed in a crawlspace. To install a crawl space jack, a hole is first created and a solid base of engineered fill is established under the location of the jack. A pre-cast concrete base is placed on the fill, and the crawl space jack is mounted on top.