Comfort Systems USA reported revenues of $819.6 million for 2004, an increase of 4.6 percent from 2003 figures. Net income was $10.7 million, compared to a loss of $5.6 million in 2003.

Backlog at the end of the year was a record $573.4 million, up 42 percent from $403.9 million at the end of 2003. Bill Murdy, chairman and CEO, predicted increased revenues for 2005.