Polar Heating & AC is a family-owned HVAC company serving Chicago, IL, and surrounding suburbs. They specialize in the installation, repair, and maintenance of air conditioners, furnaces, and boilers for both residential and commercial customers. With over 60 years of experience, Polar Heating & AC offers certified technicians who provide services including HVAC tune-ups, same-day installations, and 24/7 emergency repairs. Their service area covers Chicago and nearby communities such as Orland Park, Aurora, Joliet, and parts of Northwest Indiana. The company emphasizes customized heating and cooling system designs and offers one of the longest warranty protections in the industry.

Ustarshah.inc is an HVAC contractor based in Chicago, IL, offering repair, installation, and maintenance services for heating and air conditioning systems. They serve both residential and commercial clients, specializing in a wide range of equipment including ductless mini-split air conditioners, central air conditioning, heat pumps, boilers, rooftop HVAC systems, VRF systems, and chillers. Their certified technicians provide tailored solutions to meet diverse needs, ensuring efficient system performance and longevity. Ustarshah.inc combines advanced technology with local expertise to deliver customized HVAC services throughout Chicago and its suburbs.

Vanguard Heating & Air Conditioning Inc is a locally owned HVAC company serving Chicago, IL. Established in 1979, they provide installation, repair, and maintenance for heating and cooling systems including air conditioners, furnaces, heat pumps, boilers, and mini splits. Their certified technicians handle all work without subcontractors, ensuring consistent quality. Vanguard offers specialized capabilities such as radiant heating systems and advanced air quality solutions including UV air purification. With over 40 years in business, they focus on energy-efficient products and personalized comfort solutions.

Daikin Applied Service is a commercial HVAC provider based in Chicago, IL, offering a wide range of heating, ventilation, and air conditioning services. They specialize in installation, repair, and maintenance of AC units, furnaces, heat pumps, and indoor air quality systems for various commercial and industrial facilities. Daikin Applied Service uses advanced technology and a proprietary asset management system to help clients manage HVAC equipment efficiently and plan for future capital expenses. Their services support energy-saving solutions and operational cost control, catering to buildings such as high-rises, hotels, data centers, schools, and hospitals.

Y-Tech Heating & Air Conditioning is a licensed HVAC contractor serving Chicago, IL, and the surrounding communities. They provide a range of services including installation, repair, and maintenance of air conditioners, furnaces, heat pumps, boilers, mini split systems, geothermal heat pumps, and indoor air quality products. With over 50 years of experience, Y-Tech offers professional HVAC tune-ups and maintenance agreements to help keep systems running efficiently. They also provide 24/7 emergency service to address urgent heating and cooling needs.

National Heat & Power Corp. is a heating, air conditioning, ventilation, and plumbing contractor serving the Chicago, IL area. Established in 1957, the company provides mechanical HVAC systems, process and industrial piping, steam and condensate piping, plumbing systems, temperature controls, energy management, and building automation. They offer 24-hour service and preventative maintenance contracts for commercial and industrial clients across various sectors including education, healthcare, government, and manufacturing.