Pride Plumbing came out and provided a price quote to 1) repipe and replace the water supply lines under the house in the crawlspace, going to the fixtures in the kitchen, two bathrooms (sinks, toilets, and bathtubs/showers), the washing machine, and the water heater, with new PEX piping and fittings (installing new 1/4 turn ball water shutoff valves on each fixture inside the house along with new above-floor stainless steel water supply lines); 2) remove an existing bathtub/shower, install a new shower drain, replace the existing shower faucet valve with a new Delta model, and once tile work is completed by a third-party contractor, return and install shower control chrome trim; and 3) install a new Navien 240A tankless hot water heater with a circulation pump (this would include a) removing and disposing of the old 50-gallon Rheem EverKleen model (along with disconnecting its venting and gas and water lines); and b) installing the new tankless unit along with its service valves, PEX