Guaranteed Plumbing was founded in Danville, California in 2003 by Marcus Madrid, its Owner and President. The company began with a focus on residential service and remodel work. Through “word of mouth” references that serve as a testament to the remarkably skilled and efficient nature of its staff, Guaranteed Plumbing quickly expanded to complete a myriad of residential and commercial projects throughout the greater East Bay.

Marcus Madrid prides himself on maintaining a talented, reliable and amiable team, while also personally actively participating in every job. He remains involved from concept to completion. Realizing the long-term value of customer rapport, Guaranteed Plumbing works with its clients to provide cost-effective and creative solutions to a variety of plumbing needs. The staff extends attention to detail in each endeavor, whether it is designing and building a large-scale commercial project or changing out a kitchen faucet. To Guaranteed Plumbing, no job is too big or too small. The company continuously strives to establish new relationships with homeowners and contractors seeking a dependable, economical and experienced plumbing provider.