Carl C. Lipp, 90, who owned and operated his family’s old plumbing, heating and roofing business, C.M. Lipp & Son in Washington, died Dec. 29 at Montgomery Hospice’s Casey House in Rockville. He had leukemia.

Mr. Lipp’s grandfather started the family business in 1886. Mr. Lipp joined the company in 1938 and spent decades as owner and operator until his son took over in 1985. It closed in 1987.

Carl Christy Lipp, a Gaithersburg resident, was a native Washingtonian and a graduate of Roosevelt High School and Columbia Technical Institute.

As a plumber, he was contracted to the Navy during World War II. He was sent to Pearl Harbor, Hawaii, shortly after it was bombed to help repair ships that had been hit.

Survivors include his wife of 69 years, Shirley Wingate Lipp of Gaithersburg; three children, Carl C. Lipp III of The Villages, Fla., Jay W. Lipp of Dickerson and Jean C. Wirth of Gaithersburg; a sister, Elizabeth H. Monahan of Gaithersburg; eight grandchildren; and eight great-grandchildren.

— Adam Bernstein