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Crystal Heating & Cooling has been a leader in sales and service since 1965, and is one of the largest dealers in the St. Louis, Jefferson County and St. Francois. Laurel Moore, the CEO, has over 45 years of experience in the field. From the beginning, an essential element in the company "formula of success" has been quality workmanship. Crystal Heating & Cooling's growth, through the years, has been mainly due to repeat business and referrals from satisfied customers - proof of our performance.