HVAC Employment Opportunities in Carrollton, GA. At Merrell & Associates, Inc., we are constantly on the lookout for energetic and enthusiastic people who are willing to work and learn. If you are interested in an HVAC career we may very well be the place for you. Plus we offer great benefits including. Industry-Competitive Wages. Paid Vacation Time. Health Care Coverage. 401K Plans. The types of positions we have are detailed below. Check this p...