
Rooftop units across the country are getting clogged with cottonwood. This was especially true for Arvada, Colorado. Holbrook Service, specializing in commercial and industrial HVACR for the past forty years, was called in to take care of servicing the 35-50 ton Carrier units located on top of a 103,000 square foot office complex. Their annual invasion of airborne cottonwood seeds was just around the corner. Keep Reading >