I graduated from Northwestern tech and entered into the Hvac field, with with a local company as a commercial service tech/installer. After working in the field for 4 yrs, I got my mechanical contractors license.
I've worked with business owners, home owners, renters, landlords and realtors.
One of my customers couldn't get someone to replace her furnace before the holidays for a fair price, and she was very pleased that we got it done for her in 6 hours. She even baked a pie for my family.