Are You Looking for HVAC Contractors in Oak Forest, IL?

King Heating, Cooling & Plumbing provides expert HVAC and plumbing services across Chicago and Northwest Indiana. Founded in 1968, we combine decades of experience with NATE-certified technicians and Carrier-certified equipment to deliver reliable, energy-efficient solutions. Our 24/7 emergency services, transparent pricing, and 100% satisfaction guarantee ensure lasting comfort and client confidence.

Eich's Heating & Cooling provides professional HVAC services including furnace repair, air conditioning maintenance, and air duct cleaning. Family-owned since 1990, we serve Oak Forest and southwest suburbs with licensed technicians available 24/7 for emergencies. Our services ensure optimal system performance while maintaining transparent pricing and customer education.

Q U Bar provides expert HVAC and refrigeration installation, sheet metal fabrication, and system renovation services for commercial and industrial clients. Since 1991, we've delivered customized climate control solutions using premium materials and skilled craftsmanship. Our in-house manufacturing capabilities and technical expertise ensure efficient, code-compliant installations that meet evolving industry standards.

S Mechanical provides full-service HVAC contracting, mechanical engineering, and maintenance solutions for commercial, industrial, and institutional clients. With 27+ years of experience, we deliver design-build projects, 24/7 emergency services, and energy-efficient systems for new construction and existing facilities. Our LEED-certified expertise and $500M+ project portfolio demonstrate technical excellence across diverse market segments.