Wisconsin Construction Defect Statute
No action may accrue against the owner or occupier of property, or against any person involved in the improvement to real property, to recover damages after 10 years have elapsed from the date of substantial completion. If injury occurs between the 8th and 10th years, the time for commencing the action is extended for 3 years after the date of injury. WIS. STAT. ANN. § 893.89.