A: Don't accept estimates over the phone. How can they see if problems exist over the phone? A quality contractor will: * Want to see the home to avoid any installation issues; * Perform a heat load analysis to ensure the correct size equipment; * Check ductwork to ensure it is not undersized and air leakage is minimal; * Ask questions so that your needs are met. Example: Do you have hot or cold spots? * Give you a writ- ten estimate outlining the scope of work; * Educate you so you can make an informed decision; * Be well trained and certified to do the job. Don't be afraid to meet with several contractors. It is a big decision you will be stuck with for many years. Be Comfortable!