In Virginia, clay minerals can swell up to 15 times their dry volume when wet, exerting over 30,000 pounds of pressure against foundations.
When your concrete slab or block foundation begins to sink, crack, or shift, one of the most effective, modern solutions is the installation of . helical piers poquoson
"We were impressed by the helical pier system," said John Smith. "It's a non-invasive, cost-effective solution that doesn't harm the environment. Plus, it's designed to withstand the harsh coastal conditions." In Virginia, clay minerals can swell up to