257 ZIP codes, 155 towns, eight counties

Our patch runs from Boston and Cambridge out through Middlesex and Essex counties, north across the state line to Nashua and Salem, west to Marlborough and Shrewsbury, and south to Quincy and Brockton.

Being close matters more than it sounds. A technician already working two towns over can reach you the same afternoon, which is the difference between a fridge that loses its contents and one that does not.