PLUMBING & ELECTRICAL ne 507-483-2152 Nienkerk Construction, Inc. 507-372-5810 Plumbing, Electrical, HVAC, Septic Install & Pumping, Jetting & Excavation PLUMBING & ELECTRICAL ne 507-483-2152 Nienkerk Construction, Inc. 507-372-5810 Plumbing, Electrical, HVAC, Septic Install & Pumping, Jetting & Excavation