I called Dunn Heating for a second opinion on my furnace repairs as advised by another company. The technician came by, took one look at the paper left by the other company, referred me to sales and left. No inspection or service was performed and the tech was there for 30 SECONDS. I had their Sales rep come out to quote which was $1300 higher than the competition. Only to then threaten me with a bill for the "Inspection" that never happened if I didn't choose them.