Document the condition
Note location, timing, weather relationship, changes over time, and any previous work. Photos and simple measurements can improve the first conversation.
Read the local context
Sterling Heights was built out almost entirely in a single postwar wave -- 1950s through 1970s subdivisions housing Chrysler and Ford workers -- so crawl spaces and basements across the city share the same construction-era vapor barriers and ventilation choices. A humid continental climate, with real summer humidity and roughly 46 inches of snow a year, keeps moisture pressure on those spaces year-round.
Ask what will be hidden
Visible growth is only part of the problem. A durable plan addresses water entry, humidity, material condition, containment, and post-work verification. The written scope should explain the preparation and verification that will no longer be visible at completion.
Compare complete scopes
Look for protection, access, materials, permits, testing, cleanup, restoration, exclusions, warranties, and change-order rules.
What official local sources add
Sterling Heights enforces its own Stormwater Management Standards, effective May 17, 2023, and requires a floodplain development permit for work within mapped flood hazard areas -- both relevant to moisture and drainage conditions around a home's foundation.
Sources were reviewed 2026-07-26. Confirm parcel-specific flood zones, historic-district status, permits, and current requirements with the relevant authority before authorizing work.