1. Latcham Enterprises Geothermal Heating & Cooling
407 370th Ave, Grinnell, IA 50112
Coordinate: 41.76071,-92.70556
Phone: (641) 236-5937
2. German Plumbing Heating & Cooling Inc
610 1st Ave, Grinnell, IA 50112
Coordinate: 41.73856,-92.72776
Phone: (641) 236-5965