Should I attempt to rectify over spanned joists by myself? 

Attempting to fix over spanned floor joists on your own is not recommended. Without proper expertise, you may face complications that could jeopardize your home’s stability and your own safety. Professional intervention guarantees faster, more effective, and higher-quality repairs, as well as the assurance that the problem is thoroughly resolved. Reach out to Dry Pro Foundation & Crawlspace Specialists for a complimentary inspection and estimate.