Holmes on Homes (2003)

S1E11 Site Unseen

After a woman adds a second story to her home, she discovers an unexpected leak. She turns to Mike Holmes for help, and he uncovers that the house is built on a shaky dirt foundation instead of a solid concrete base. To rescue the structure, Mike and his crew dig out the unstable soil and pour a new, sturdy concrete foundation, ensuring the house is safe and secure.