Read Reviews of HVAC Contractors in Round Lake, IL

H.J. Faust provides expert HVAC installation, repair, and maintenance services for residential and commercial clients in Burlington, WI, and surrounding areas. With over 40 years of experience, we prioritize customer satisfaction through certified technicians, high-quality parts, and 24/7 emergency support. Our comprehensive solutions address heating, cooling, and indoor air quality needs to ensure year-round comfort.

NJL Heating, Air Conditioning & Plumbing delivers expert HVAC and electrical services in Des Plaines, IL. We specialize in system installations, maintenance, and repairs for residential and commercial properties. Our family-owned business combines 35 years of experience with honest pricing to ensure reliable, efficient solutions for every client.

Master Services provides expert residential HVAC and plumbing services in Southeast Wisconsin and Northern Illinois. Established in 1990, we specialize in heating, cooling, plumbing repairs, and indoor air quality solutions. Our commitment to customer satisfaction includes 24/7 emergency support and a 100% satisfaction guarantee.

Vanguard Heating & Air Conditioning provides professional HVAC services including installation, repair, and maintenance for residential and commercial properties in the Chicagoland area. Since 1979, we've delivered energy-efficient heating and cooling solutions using premium equipment from trusted manufacturers. Our certified technicians offer expert service for all system types while maintaining a commitment to transparent pricing and customer education.

Christiansen Heating & Sheet Metal delivers expert residential and commercial HVAC services, custom sheet metal fabrication, and emergency solutions in Kenosha and southeastern Wisconsin. With four generations of experience since 1938, we combine family tradition with union-trained expertise to ensure lasting comfort and system efficiency. Our in-house fabrication, honest recommendations, and 24/7 emergency availability set us apart as a trusted local partner.

WeatherWise Heating & Cooling is a family-owned HVAC and plumbing company established in 1985. We provide installation, repair, and maintenance services for heating, cooling, and water systems across six Illinois counties. Our NATE-certified technicians offer 24/7 emergency support and energy-efficient solutions tailored to Crystal Lake's climate challenges.

S & R Heating & Cooling delivers comprehensive HVAC solutions for residential and commercial properties across Northern Illinois and Wisconsin. Specializing in system design, installation, and emergency repairs since 1992, we combine technical expertise with 24/7 service availability. Our focus on energy efficiency and indoor air quality ensures lasting comfort through advanced equipment and preventative maintenance programs.

AVI Alliance Systems is a family-owned HVAC contractor providing heating, cooling, and maintenance solutions for residential and light commercial clients. Our services include air conditioner repair, installation, and replacement; furnace service; and 24/7 emergency support across Elgin, West Dundee, Algonquin, Barrington, Lake Zurich, and surrounding areas. We focus on reducing utility bills, ensuring optimal indoor comfort, and delivering reliable, warranty-backed work to every customer.

Advantage Plumbing, Heating & A/C provides comprehensive 24/7 heating, cooling, plumbing, and electrical services in Elgin, IL. Our experienced technicians deliver emergency repairs, preventative maintenance, and system installations with a 100% satisfaction guarantee. We prioritize immediate, personalized service and transparent communication for residential and commercial clients.

Heating Revolution delivers energy-efficient infrared and radiant heating solutions for residential and commercial spaces. We specialize in eliminating inefficient forced-air systems by directly heating surfaces, objects, and people. Our products, sourced directly from manufacturers, provide cost-effective, maintenance-free heating for garages, warehouses, hot yoga studios, and outdoor areas.