All Service is a full service heating, air conditioning and duct cleaning contractor and a factory authorized Tempstar furnace and air conditioner dealer servicing the Chicagoland area for over 35 years. We specialize in answering our phones and doing what we say we’re gonna do!

Our continued success is due to a strong foundation built on quality products, superior service and above all, a high standard of integrity.  At All Service our customer’s needs always come first. Our highly qualified technicians are personable and they care. They take the time to listen to the needs and wants of every customer. Our customer’s are never left feeling confused or concerned about what was done or will be done in their home. We will not leave the home until 100% understanding and satisfaction has been achieved.


At All Service we believe in the value of education and continued education. Our technicians are all Nate Certified, NCI certified, hold degrees in HVAC and are expected attend classes several times a year. This is how we keep our competitive edge and stay on top pf the newest trends in the HVAC industry.

We’ve provided service for the Chicagoland area for over 3 decades and are very excited about what the future holds for our company.

Training & Certifications

  • NCI (national comfort institute) we are certified in commercial and residential air balancing, residential and commercial system performance analyzer, HVAC commercial and residential system testing and diagnostics
  • BPI (building performance institute) we are certified in building analyst professional, whole house air leakage testing, and whole house air leakage control installer.
  • NATE (north american technician excellence) we are certified in: service and install technician for gas furnaces

  – Also, We are members of RSES (refrigeration service engineers society) – an educational association dedicated to the advancement of its members in the art and science of refrigeration, air conditioning installation and service engineering