What causes sagging and uneven floors? 

Sagging and uneven floors can result from over spanned joists, inadequate support, weakened joists, and excessive humidity. These sources lead to creaking noises, visual disarray, and potential safety hazards. Bay Area Underpinning experts will identify the exact cause of the sagging and uneven floors during a free inspection, and recommend customized repair solutions, including the IntelliJack™ Crawl Space Jacks.