There is no way I can say enough good comments about Dayco. After receiving an excessive quote from my long-time hvac company of $17,100 to replace the ac unit, humidifier, air filter and furnace, I consulted Angie's list and found Dayco. They provided me with an explicit quote detailing 3 qualities of ac, plus separate quotes for a new furnace, humidifier, and air filter so I could compare apples to apples with my first quote. They even included part numbers so I could compare prices on the internet. The owner then walked me through the pros and cons of the 3 types of ac units and told me where my best price break was for efficiency vs cost (the mid-range unit). He further advised that I should not purchase a new furnace, since I probably had 4 - 5 years on my old one. My long-time hvac company had previously told me I needed to get a new furnace since it would be nearly impossible to fit my new ac in the same space with my old furnace. Dayco never even mentioned that a tight fit was an issue. The installers and owner were professional, friendly, courteous and above all, honest. The owner stayed on site the entire job and helped with the install of the unit. I'm hooked on Dayco and plan to switch over to them for my biannual maintenance contract on my ac/furnace units.