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50+ Years
experience
Emergency
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Your Trusted HVAC Partner in Chicago Since 1945
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 served Southern Chicago and surrounding areas for over 70 years, evolving under the leadership of successive family members while maintaining core values. Our team of skilled technicians provides residential and commercial HVAC solutions, including installation, maintenance, and repair, backed by a comprehensive inventory of parts and emergency service capabilities. We specialize in high-efficiency systems that enhance comfort while reducing energy costs, serving both homeowners and businesses across Chicagoland. Our dedication to quality extends to indoor air quality products, ensuring healthier living and working environments.

With radio-dispatched technicians and a focus on prompt, reliable service, we prioritize customer satisfaction through transparency and integrity. Our commercial clients benefit from tailored maintenance plans that optimize system performance and longevity. Recognizing the importance of preventive care, we offer maintenance agreements to protect HVAC investments and ensure year-round efficiency. As a locally rooted business, we understand the unique climate challenges of the Midwest and design solutions specifically suited to regional needs. Our legacy of trust and expertise continues to make us the preferred HVAC partner for generations of customers in communities like Lansing, South Holland, and Munster.
Services
Residential HVAC Commercial HVAC Maintenance Plans Indoor Air Quality Emergency Services
Details
  • Year established: 1945
Highlights and features
  • Family owned & operated since 1945
  • Serving Southern Chicago since 1945
  • Emergency service available
  • Radio-dispatched technicians
  • Committed to honesty & integrity
Services
Residential HVAC
We provide comprehensive residential heating and cooling solutions including system installation, repair, and maintenance. Our technicians handle furnaces, boilers, and heat pumps, ensuring optimal efficiency and comfort for homeowners in Southern Chicago. With 24/7 emergency service and stocked parts inventory, we minimize downtime and maximize system longevity.
Commercial HVAC
Our commercial HVAC services include system design, installation, and maintenance tailored for businesses in Dolton, Beverly, and surrounding areas. We create energy-efficient solutions that reduce operating costs while maintaining comfort. Our maintenance plans ensure compliance and prolong equipment lifespan for commercial properties.
Maintenance Plans
Preventive maintenance agreements protect your HVAC investment through regular inspections and tune-ups. Benefits include priority service, discounted repair rates, and improved system efficiency. These plans help avoid unexpected breakdowns while extending equipment lifespan for both residential and commercial clients.
Indoor Air Quality
We install advanced air purification systems and humidifiers to improve indoor air quality. Our solutions address dust, allergens, and humidity imbalances, creating healthier living and working environments. These products complement HVAC systems to enhance overall comfort and health.
Emergency Services
24/7 emergency HVAC repair available for urgent heating and cooling issues. Our radio-dispatched technicians respond promptly with essential parts inventory to resolve system failures and restore comfort quickly for residential and commercial clients.
Questions
What HVAC services do you offer for homeowners?
We provide complete residential HVAC solutions including system installation, repair, maintenance, and indoor air quality improvements across Southern Chicago.
Do you serve commercial businesses?
Yes, we offer commercial HVAC design, installation, and maintenance services for businesses in Dolton, Beverly, and surrounding Chicago areas.
Are emergency repairs available?
We provide 24/7 emergency HVAC repair services with prompt response times and essential parts inventory.
Do you offer financing options?
Yes, we provide financing options to help customers manage HVAC system upgrades and replacements.
What maintenance plans are available?
Our preventive maintenance agreements include regular inspections, priority service, and repair discounts to protect your HVAC investment.
How do you improve indoor air quality?
We install air purification systems and humidifiers to reduce allergens and maintain optimal indoor humidity levels for healthier environments.