Shelby Township contractor Mansour's Innovations has published a free guide to basement flooding risk in Macomb, Oakland and Wayne counties, built from public FEMA, NOAA and Michigan EGLE records from 2014 to 2026.

The numbers show why so many local homeowners are caught off guard: only 0.42% of residential buildings in the three counties carry a federal flood insurance policy, and 89% of flood claims that list a foundation type involved a home with a basement.

"Basement flooding isn't only a flood-zone problem," said owner Imad "Matt" Mansour. "A working sump pump, a backwater valve and clear downspouts go a long way before spring."

The guide is free here. 

Mansour's Innovations has served Rochester and Rochester Hills and the rest of Southeast Michigan since 2014 with basement waterproofing, foundation crack repair, excavation and plumbing. Free estimates: (586) 345-7292 or visit Mansour's Innovations.