Schertz sits where Guadalupe and Bexar counties meet along the I 35 corridor, a fast growing city of brick ranch homes, newer master planned neighborhoods, and long stretches of Hill Country limestone soil. That soil holds moisture after a storm and then bakes hard in the summer heat, which means driveways, patios, and siding pick up algae, mineral staining, and caliche dust faster than homeowners expect. On-Site Home Services works throughout Schertz, from the homes near Randolph AFB to the newer builds off FM 78, helping residents keep their property looking its best through the wet spring and the long, dry Texas summer.