Professional HVAC and Plumbing Services in Champaign-Urbana, IL and All Surrounding Areas. For long-lasting HVAC and plumbing solutions, call on Lanz Plumbing, Heating & Cooling, Inc. As one of the premier providers of HVAC and plumbing services in Champaign-Urbana, Mahomet, Savoy, IL and surrounding areas, we know what it takes to deliver exceptional