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Schraer Air Experts in O'Fallon, Missouri brings trusted comfort with over 75 years of experience in heating, cooling, air quality, and commercial refrigeration. Established in 1946, we honor a longstanding tradition of family-driven service, modern expertise, and community care. As a Lennox Premier Partner, we deliver high-efficiency installations, repairs, and maintenance backed by flexible financing options and Pro-Care membership plans. Whether residential or commercial, our team treats every project as if it's for a neighbor, combining quality, reliability, and heart in every visit.