• American Plumbing & Mechanical, Inc. (AMPAM) (Round Rock, TX), has announced its operating results for the quarter and nine-month period ending Sept. 30, 2001. Revenue in the third quarter increased 8% to $157.7 million, vs. $145.5 million for the comparable quarter in 2000. Gross profit for the quarter was $26.3 million, compared to $26.5 million for the same period of 2000.