About Us

William G Day goes "beyond the box” to diagnose and solve, IAQ and comfort problems. We have invested in the training and diagnostic instruments needed, have become air distribution system and thermal envelope specialists, and understand that “The House Is An Interactive System.”

We can solve comfort problems other contractors can’t. We know the best ways to make hot and cold spots comfortable, such as rooms over garages, second floor bedrooms, or cold and drafty TV rooms. We know how to control humidity year round. We can also solve IAQ problems other contractors cannot. We know why new filters and duct cleaning often don’t reduce visible dust, and what needs to be done to really make a difference. We can diagnose and solve carbon monoxide and back-drafting problems. We have learned how to put the V (ventilation) back into residential HVAC.

In addition we know how to install new high efficiency equipment so that it operates at the rated performance. How to properly size new equipment, and solve pre-existing duct and thermal envelope problems. We know how to ensure new equipment actually saves money on utility bills.

In short we have evolved into Total Comfort Contractors. This provides a powerful Unique Competitive Advantage over 99% of the contractors in the industry, making William G Day stand out as your obvious choice for Heating, Cooling, and Plumbing solutions!