No matter what the new product or repairing and old one. We are required to make sure that all installation on whatever product that you select for our company to install is installed under the manufactures specification and state and city mandates. We are trained in installation and service of almost every tank and tankless water heater that is manufactured. And we stay up to date thru continuing education to make sure that we can do the best job for you and your family. In addition product refresher course we are required by the state to take continuing education all new, products, laws and requirement of manufactures.