When the Weather’s at its Worst. We’re at our Best.
Emergency Hours: 24/7
Home | Services
Since 1959, Thornton Heating Service has kept Chicagoland homes and businesses comfortable year-round. Choose a service below to learn more or schedule an appointment.
HVAC and custom ductwork for small businesses.
Protect your system all year with the Guardian Protection Program.
Learn about GuardianNo heat or no cooling after hours? We're here day and night.
Get emergency helpResidents and businesses trust Thornton for local HVAC services because we combine decades of experience with honest, expert care. As a locally owned company, we’re proud to serve Libertyville, Vernon Hills, Waukegan, Gurnee, and other nearby communities.
With flexible scheduling, transparent pricing, and 24/7 emergency support, Thornton Heating & Cooling delivers comfort you can count on.
Ready to get started? Schedule a service, request a quote, or ask about our HVAC maintenance programs today and experience the Thornton difference.