Floors may sag for a variety of reasons. Natural settling of your house over time, water or pest damage or wear and tear are the most likely reasons your floors are no longer level. As all the different elements of floor construction are interdependent (meaning they rely on each other to work properly) it may be sometimes difficult to pin point the problem on your own. Fully understanding the role of the sill plate, the rim joist, the floor joists, the main structural beam and support beams are paramount to diagnosing the problem. With our 20+ years of construction experience, we are happy to help you understand what is causing the problem.