Do you know what\'s in your water? Enhance Your Life and the Value of Your Home With a Cost-Effective Water Filtration System from Dr. Johns H20. Dr Johns H20, a division of Johns Plumbing Heating and Air, has teamed up with Kinetico, Inc., to bring the highest level of expertise to improve the quality of water. Dr. Johns H20 provides all levels of service in Greensboro, Winston Salem, and Charlotte areas of NC, for both residential and commercial customers. Give us a call today for your free in-home water analysis, and ask us about our unique solutions for clean, clear luxurious water.