I recently called D and N because I couldn't get my slides to work. He sent someone out right away. Then, before that problem could be fixed my refrigerator went out. I called them again on Friday night, after hours, and left a message. The next morning I receved a call about 30 minutes before they opened. He had someone out in just a short time. In about 5 - 10 minutes he had it fixed. To say the least, I am very happy with D and N.