I was told by a sales leader earn commissions for their work, not fixed salaries. Testimonials - At Hope Plumbing, we provide prompt and professional plumbing. November 2015 October 2014 September 2014 August 2014 July 2014. Plumbing Manager Dennis Thompson & Alex Tirado with Second Place Elementary School Winner. A professional, local plumber has the tools and knowledge to provide full service plumbing installation and repair.