A family business operating as a Texas Partnership. Founded in 1931 and incorporated in 1946 as Plains Plumbing Company, it has progressed from a small plumbing firm to a major mechanical contractor with a boiler division licensed in seven states.

Since being established by its founder, S.O. Callahan, Jr., the firm has experienced steady growth for nearly 88 years and this year is celebrating its 74nd year anniversary since it was incorporated. This is a result of ability to finance and bond major contracts, as well as a commitment to excellence in performing our work.

Projects undertaken by Plains Plumbing Co., LLC are completed on or ahead of schedule and always with the highest recommendations from owners, architects, engineers and general contractors. This is our best marketing tool because satisfied customers, create referrals.