Michigan's housing stock is dominated by three patterns. The Detroit-area 1950s brick ranch and bungalow — Warren, Sterling Heights, Livonia, Dearborn, Dearborn Heights, Westland — has a straight basement stair and a straight main stair, both routine installs. The catch is basement moisture: the lower Great Lakes drive 70%+ summer humidity into every unconditioned basement from Wayne to Macomb, and standard unsealed motors fail in two years. We ship sealed housings on every Detroit-metro install as a baseline.
Grand Rapids, Kalamazoo, and the West Michigan corridor run the craftsman bungalow and Dutch Reformed farmhouse pattern with straight stairs but tighter newel-post geometry than metro Detroit. Ottawa, Kent, and Allegan county homes frequently need narrow-gauge rails on pre-1940 stock. We confirm tread width and newel clearance on the intake call before dispatch.
Northern Michigan and the Upper Peninsula are a different planet. Traverse City, Petoskey, Marquette, Houghton, Iron Mountain, Sault Ste. Marie — January lows drop to -20°F with -40°F windchill on the Keweenaw, and standard stairlift batteries die in a single season. Every install north of US-10 ships with a cold-pack battery rated to -30°F and a battery blanket for unheated garages. Lake-effect snow adds rural drive days but no travel surcharge.
Built for the Michigan climate
Michigan climate is two problems stacked. Southern Michigan basements run 65-75% summer humidity and corrode unsealed motors inside two years — we ship sealed motor housings standard statewide. Northern Michigan and the UP see -20°F January lows with -40°F windchill in Houghton and Marquette counties, and standard batteries fail in one winter. Every install north of US-10 ships with a cold-pack battery rated to -30°F as a baseline spec, plus a battery blanket for any lift mounted in an unheated garage or mudroom. The 12-month cold-season follow-up call catches battery degradation before the warranty claim hits.