PhD Heating & Cooling is an HVAC company based in Chicago, IL, specializing in the installation and repair of air conditioners, furnaces, boilers, mini-splits, and water heaters. With over a decade of experience and a strong engineering background, the company emphasizes precision and quality in every project. Their team of licensed and insured technicians follows a detailed installation standard to ensure safe operation and long-term reliability. PhD Heating & Cooling provides comprehensive services including system sizing, equipment selection, and emergency repairs, focusing on delivering lasting comfort and safety to homeowners.

Ibbotson Heating Co is a family-owned HVAC company serving Chicago, IL, and the surrounding northwest suburbs. Established in 1946, the company offers installation and repair services for air conditioners, furnaces, heat pumps, and other heating and cooling systems. As a Lennox Premier Dealer and Authorized Carrier Dealer, Ibbotson Heating Co provides high-quality equipment backed by experienced NATE-certified technicians.

Flow-Rite Heating & Cooling is a family-owned HVAC company serving Chicago, IL, and nearby areas including Wood Dale, Itasca, and Addison. They offer a full range of heating and cooling services such as air conditioner and furnace installation, repair, and maintenance. Their capabilities include indoor air quality improvements like duct cleaning and smart thermostat installation. With over 10 years of experience, Flow-Rite provides 24/7 emergency service to address urgent heating and cooling needs any time of day or night.

High Tek Corp - Heating & Cooling is based in North Riverside, IL, serving the Chicagoland area with over 25 years of HVAC experience. They provide a full range of services including installation, repair, and maintenance of heating and cooling systems for both residential and commercial properties. Their expertise covers ductless systems, central air, boilers, and smart thermostat installation. High Tek Corp also focuses on improving indoor air quality and offers 24/7 emergency services to address urgent HVAC needs.

R.H. Witt Heating & Sheet Metal is a family-owned HVAC and electrical service provider based near Chicago, IL. They serve Glenview and the surrounding North Shore and Northwest Suburbs, including Northbrook, Highland Park, Glencoe, Winnetka, and Wilmette. Their services include air conditioning and furnace repair, HVAC installation, indoor air quality solutions, and electrical work. The company is a Carrier Factory Authorized Dealer and offers specialized capabilities such as Aeroseal duct sealing and custom sheet metal ductwork fabrication. Established in 1966, R.H. Witt Heating & Sheet Metal provides 24/7 emergency service to support year-round comfort for residential and commercial customers.

Emerald Heating & Air Conditioning Inc. is a full-service HVAC company based in Chicago, IL. They provide a wide range of heating and cooling services including repair and installation of air conditioners, furnaces, heat pumps, boilers, and mini splits. The company also offers HVAC tune-up and preventative maintenance services to help customers maintain their systems efficiently. Emerald Heating & Air Conditioning Inc. aims to deliver quality work on schedule and within budget while addressing all client needs.

Safe Heating & Cooling Inc. is a family-owned HVAC company serving Chicago, IL, and the broader Cook County area since 2008. They provide a wide range of heating and cooling services including air conditioner, furnace, heat pump, and mini split installation and repair. The company also offers duct cleaning and indoor air quality services to help maintain cleaner and healthier home environments. Safe Heating & Cooling is experienced in installing radiant floor heating systems, which provide even warmth throughout a home. Their service area includes many communities across Cook County, reflecting their local focus and commitment to the region.

D's Air & Heating, INC is an HVAC service provider based in Chicago, IL, offering heating, air conditioning, furnace and boiler maintenance, and professional duct cleaning services. They serve Chicago and the surrounding suburbs with a focus on improving indoor air quality and energy efficiency. The company uses advanced camera analysis for thorough duct cleaning and state-of-the-art diagnostic tools to identify HVAC issues. Established in 2009, D's Air & Heating, INC has completed thousands of projects and serves a broad customer base in the area.

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.

Thermal Electric Inc is an HVAC company based in Chicago, IL, providing electrical, heating, and cooling services throughout the greater Chicago area. They specialize in air conditioning and furnace repair, installation, and maintenance, with a team of licensed electricians and HVAC professionals. The company offers 24/7 emergency service and emphasizes compliance with industry codes and standards. Thermal Electric also provides an extended warranty program and financing options for qualifying customers.