We are excited to serve you for your HVAC needs.

We are HVAC manufacturer representatives covering the Midwest and headquartered in Chicago.  Since 1948 our sales team has provided technical, application and sales support for our clients and customers.  We represent the leading brands in our industry. Our clients brand names stand for quality, value and innovation.  We help people condition building for where they work, live, and play. Consuming less energy, increasing comfort and providing healthier air for better lives indoors.

Our purpose is simple, Better Living Indoors.

It’s important to us because it means making our indoor air safer to breath, our water and air the temperature we want, and lessening the impact on the environment while saving money.

In order to accomplish our purpose, we work with distributors, contractors, engineers, and building owners and provide them experience and expertise, along with application and technical support.  Our relationships are created and strengthened by providing fast, consistent, and reliable information.


Think Globally, Market Locally

We envision the fastest delivery of information about our manufacturer’s products to the alliance of distributors, contractors, engineers that will provide better living indoors for new or existing buildings starting in the Midwest and expanding outward.


Serving over 68 years strategically for short and long term results.  We are leaders.  A to Z Sales constantly strives to exceed your expectations.

We sell our products through distributors, specification representatives and original equipment manufacturers.  We increase sales velocity by supporting contractors, engineers, architects and builders with their hvac needs.  Our professional sales engineers introduce new products, assist with your designs, provide training and in-store merchandising.

We have received numerous sales achievement awards from our manufacturer clients for helping them achieve their goals.  We value the relationship with every person we meet.


Company Background

  • Established in 1948 by BA Johnson as BA Johnson Sales
  • Purchased by Walter Ascelman and Otto Zeeman in 1970 naming the company A to Z Sales, Inc
  • Purchased by Jim Graham Sr. in 1990, continuing as A to Z Sales, Inc. as a wholesale representative
  • Purchased by Jim & Mike Graham in 1997, continuing as Ato Z Sales, Inc. as a wholesale representative