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50+ Years
experience
Emergency
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Expert HVAC Services in Chicago
Ralph's Heating & Air Conditioning has been a trusted name in HVAC services since 1945, founded by Ralph J. Heritage with a commitment to honesty and customer appreciation. As a third-generation family-owned business, we have maintained core values of integrity and reliability while adapting to industry advancements. Our team of skilled technicians provides comprehensive residential and commercial HVAC solutions, including installation, maintenance, and emergency repairs. We prioritize prompt response times and stock over 10,000 parts to ensure efficient service. Serving Southern Chicago and surrounding areas, we specialize in high-efficiency systems that balance comfort with cost-effectiveness.

Our maintenance plans help extend system longevity while reducing utility costs. We offer indoor air quality solutions like air purifiers and dehumidifiers to address health and comfort needs. With radio-dispatched technicians and 24/7 emergency availability, we ensure year-round reliability. Our team includes experienced professionals who have grown with the company over decades, reflecting our investment in expertise. We accept major credit cards and offer financing options to accommodate customer needs. This combination of heritage, technical skill, and customer-centric approach has sustained our reputation as a trusted HVAC partner for over 75 years.
Services
Residential HVAC Commercial HVAC Maintenance Plans Indoor Air Quality Emergency Repairs
Details
  • Year established: 1945
Highlights and features
  • Family-owned & operated for 75+ years
  • Serving Southern Chicago since 1945
  • 24/7 emergency service available
  • Stock 10,000+ parts for quick repairs
  • Radio-dispatched technicians for efficiency
Services
Residential HVAC
We provide comprehensive heating and cooling solutions for homes across Southern Chicago. Our technicians install, repair, and maintain furnaces, boilers, and heat pumps to ensure year-round comfort. With 75+ years of local experience, we offer energy-efficient systems that reduce utility costs while maintaining optimal indoor climate.
Commercial HVAC
Our commercial HVAC services cover system design, installation, and maintenance for businesses in Dolton, Beverly, and surrounding areas. We specialize in high-efficiency commercial systems that meet warranty requirements while minimizing operational costs. Our team ensures compliance with industry standards for large-scale heating and cooling needs.
Maintenance Plans
Preventive maintenance plans protect your HVAC investment through regular inspections and tune-ups. These plans include priority service, discounted repair rates, and system longevity benefits. Our scheduled maintenance helps prevent breakdowns while maintaining energy efficiency for both residential and commercial clients.
Indoor Air Quality
We address indoor air pollution through advanced air purification systems and dehumidifiers. Our solutions target dust, allergens, and humidity imbalances to improve respiratory health. These installations complement HVAC systems by maintaining clean, comfortable indoor environments for homes and businesses.
Emergency Repairs
24/7 emergency repair services address urgent heating and cooling failures. Our radio-dispatched technicians carry common replacement parts for immediate fixes. This rapid response capability prevents extended discomfort while protecting HVAC system integrity during critical temperature conditions.
People
Ralph J. Heritage
Founder
Established the company in 1945 with principles of honesty and customer appreciation that continue guiding operations today.
Robert Heritage
Former Operator
Assumed leadership in the 1970s with his sister Carol Jean, maintaining family commitment to service excellence.
Joseph Heritage
Current Operator
Co-leads the company since 2002, continuing third-generation family stewardship of Chicago's trusted HVAC service provider.
John Heritage
Current Operator
Shares operational leadership since 2002, upholding family legacy through modern HVAC solutions and customer care.
Questions
What HVAC services do you offer for homeowners?
We provide complete residential HVAC solutions including installation, repair, and maintenance of heating and cooling systems.
Are emergency HVAC services available after hours?
Yes, we offer 24/7 emergency repair services with radio-dispatched technicians for urgent heating and cooling needs.
Do you service commercial HVAC systems?
Yes, we specialize in commercial HVAC maintenance, repair, and installation for businesses across Southern Chicago.
What areas do you service?
We serve all Chicagoland areas including Lansing, South Holland, Dolton, Calumet City, and Munster.
Are financing options available?
Yes, we offer financing plans to help customers manage HVAC system upgrades and replacements.
How can I improve indoor air quality?
We install air purification systems and dehumidifiers to address indoor air quality concerns for healthier living environments.