Air Conditioning, Plumbing, and Heating Repair in Fremont, NE, and Surrounding Areas. For complete plumbing and HVAC repair in Dodge, Saunders, and Washington Counties in Nebraska, the only name to call is BLT Plumbing, Heating & Air Conditioning, Inc.! Backed by over 40 years of experience, our team is made up of industry-leading professionals in air conditioning, heating, and plumbing repair and installation. Weāve partnered with area contractors for installations on new construction and have served home and business owners throughout the area with accurate and prompt estimates and repairs since the day we opened our doors. Weād be honored to offer you a no-obligation estimate on your HVAC needs.