Slabjack Geotechnical is the most experienced concrete raising contractor in central and eastern Washington and northern Idaho using Geo-polymer or polyurethane foam. Generally called slab jacking but occasionally pressure grouting, mud jacking, and polylevel. Polylevel is a trademarked name similar to Kleenex being a trademark name for facial tissue. Slabjack Geotechnical is a certified Polylevel...