Took a perfectly good sump pump system and replaced it with what appears to be inferior and create used material. Had to get a plumber in to fix the mess and they indicated that it appeared the material used was pretty worn
Installed the wrong size pipes to a direct heat water system. System didn’t work required $2000 to fix.
Why didn’t he come back to fix it you ask? Good question. he refuses to. Refuses to do warranty work refuses to answer the phone.
Installed wrong piping for shower jets resulted in thousands of dollars in new work.
Piping in bathroom caused a leak through drywall and onto floor. After getting a lawyer involved that was fixed.