Find the Best Air Conditioning Companies in Ontario, CA

Direct AC is a trusted HVAC contractor serving Southern California with expert air conditioning, heating, and indoor air quality services. Founded to address the unique climate needs of Riverside County residents, we specialize in system installations, repairs, and maintenance for homes and businesses. Our commitment to quality, certified technicians, and customer-first approach ensure reliable, efficient solutions for every client.

Rooter PLUS provides comprehensive plumbing and septic solutions across Metro Atlanta. With 30 years of experience, we offer 24/7 emergency services, septic tank pumping, drain cleaning, and water heater repairs. Our licensed technicians serve residential and commercial clients with transparent pricing, no after-hours fees, and financing options for major projects.

Pacific West Air Conditioning specializes in HVAC controls and mechanical services for commercial buildings across the Western United States. We provide comprehensive solutions including system design, maintenance, and emergency repairs using advanced technology and industry expertise. Our licensed professionals ensure optimal performance and energy efficiency for clients throughout California, Arizona, and Nevada.

Sinclair Air Systems, a family-owned business in Los Angeles County, offers 30+ years of HVAC expertise. Specializing in AC install, repair, and preventative maintenance, we provide reliable, energy-efficient solutions for heating, cooling, and indoor air quality. Your trusted HVAC contractor for residential and commercial services.

General Heating & Air Conditioning provides comprehensive HVAC services for residential and commercial clients in the San Gabriel Valley. We specialize in heating, air conditioning, and indoor air quality solutions, combining expert technical skills with energy-efficient technologies. Our team delivers installation, repair, maintenance, and performance optimization services to ensure year-round comfort and system longevity.

Ice Bear provides expert HVAC, refrigeration, and cooling system services for residential, commercial, and industrial clients in Los Angeles and surrounding areas. Established in 1994, we offer 24/7 emergency repair, installation, and maintenance with a focus on energy efficiency and system longevity. Our team of certified technicians delivers customized solutions for chillers, cooling towers, air dryers, and industrial refrigeration systems.

Ideal Comfort provides expert HVAC installation, repair, and maintenance services for residential and commercial properties in Rancho Cucamonga, CA. With over 35 years of experience, we deliver reliable solutions for air conditioning, heating systems, and indoor air quality improvements. Our certified technicians prioritize customer satisfaction through prompt service, competitive financing options, and a 100% satisfaction guarantee.

Davidson's Heating & Air Conditioning Heating & Air Conditioning provides comprehensive HVAC services including installation, repair, and maintenance for residential and commercial clients in San Bernardino and surrounding areas. With over six decades of local experience, we deliver energy-efficient heating and cooling solutions using premium Carrier products. Our commitment to quality extends to indoor air quality improvements, emergency service availability, and customized system consultations.

LDI Mechanical provides comprehensive HVAC solutions for multi-family residential, commercial, and industrial projects. With 60+ years of experience, we combine engineering expertise, state-of-the-art fabrication capabilities, and a dedicated workforce to deliver efficient, code-compliant systems. Our family-owned business prioritizes safety, innovation, and client satisfaction across all project phases.