| Business | Phone |
| Efficient Steam Systems Inc W7315 County Road B, Monroe 53566 | (608) 325-3522 |
| Holmes Heating & Sheet Metal 1624 14th Ave, Monroe 53566 | (608) 325-3201 |
| Lanz Furnace & Fireplace 305 2nd St, Monroe 53566 | (608) 325-2581 |
| Monroe Heating & Sheet Metal 615 17th St, Monroe 53566 | (608) 325-6030 |
| Rufer Refrigeration & Heating 1505 12th St, Monroe 53566 | (608) 328-6000 |
| Southwest Medical N4805 Skinner Hollow Rd, Monroe 53566 | (608) 325-2510 |