Came out for leaking expansion tank. Expansion tank had rusted through and ruptured. Was spraying water all over carport closet. Water heater was from 2014. Customer elected to just replace the water heater. Went and purchased materials and returned. Swapped out water heater and expansion tank. Installed new pan and shut off valve. Repressurized the home and tested to ensure proper function and a leak free installation, no further issue at this time. Thank you for choosing Chen Plumbing.