About Us

Comfort You Can Feel. Quality You Can Trust.

For over 40 years, CAS has provided quality local HVAC and plumbing services to our customers and friends across north Georgia.
Our Mission

We pour unparalleled quality into every aspect of our service

Our Mission is to treat customers like family. Whether the job is residential, commercial, or industrial in scale, we offer the highest standard of equipment and support possible. And our expert technicians and representatives are ready to deliver what you need 24/7.

Commercial HVAC system
About Us

Put Our Know-How to Work for You

We combine an unmatched knowledge of HVAC and plumbing with superior parts and committed service. Not only that, but our efficiency also allows us to get the job done right in a timely fashion – yielding savings for our customers.


We Are Never Satisfied

Conditioned Air never stops working to improve all aspects of our work. From management to the sales team to our technicians, our commitment to progress helped us grow our business and satisfy customers all over north Georgia and Atlanta. Let us show you why so many trust us with their HVAC and plumbing needs.

Decades of Comfort and Quality

It All Started with HVAC

Conditioned Air Systems opened its doors as a small, northeast Georgia family business in 1983. But our dedication to perfection led to rapid growth. Now, we install, service, and repair HVAC systems of all sizes throughout the region and metro Atlanta. We even fabricate many of our own materials. It is all part of our guarantee for quality and value.

Why CAS?

The Conditioned Air Difference

You have so many companies to choose from for your HVAC and plumbing needs. So, what sets us apart? Plenty…


We Are Family Owned and Operated

Putting customers first is the backbone of our company.


Our Industry Experience is Second to None

We value depth of experience and loyalty which translates into expert, reliable and professional service.


Our Constant Focus on Efficiency Means Savings For You

CAS is able to reduce customer cost by investing in the latest technology for streamlining our systems.


Our Technicians are NATE Certified

Technicians must complete training sessions monthly to increase their skills and stay up to date on all makes of equipment.


We Are Safety-Oriented and Drug-Free

All employees must take random drug tests, pre-hire background checks, and driving record checks. Weekly safety meetings ensure our team keeps safety front and center in all we do.


We Stand Behind Our Work With a Full Minimum One-Year Warranty

Installation, repair work, and all brands of equipment with proof of purchase date are guaranteed for one year.


You Will Have Access to 24-Hour Emergency Service

No matter the hour or the circumstance we want to promptly restore comfort to your home or company.


We’re Serious About Business

We support proven professional practices within our business and our industry by streamlining processes to ensure our customers see the value in working with CAS. We are also members of the Better Business Bureau, Conditioned Air Association of Georgia, ACCA, ASHRAE, and other trade associations within our industry.


We Partner With Your Energy Provider

We facilitate equipment rebates and energy efficiency audits with Georgia Power and other local EMCs.

Meet the CAS Team

Our CAS Team

Doug Magnus, president and founder of Conditioned Air Systems, Inc., started the company in February 1983 and has guided CAS growth from a small, family business into a regional powerhouse. Now a 75+ employee-strong family business, Doug serves as the CEO keeping the company’s big picture in sharp focus and works hand-in-hand with Andy Kalinauskas, President of Operations and Services to oversee the major departments of the business. Prior to opening CAS, Doug worked in the HVAC business for 20 years, giving him more than 50 years combined experience in the industry.

Thumbnail for CEO Doug Magnus CEO
Thumbnail for President Andy Kalinauskas President
Thumbnail for Executive Vice President of Internal Operations Baya Pruitt Executive Vice President of Internal Operations
Thumbnail for Vice President of Public Relations and Community Development Brooke Kalinauskas Vice President of Public Relations and Community Development
Thumbnail for Vice President of Operations / General Manager Kenny Gee Vice President of Operations / General Manager
Conditioned Air Systems

Call Today

Contact us today to work with the best HVAC and plumbing contractors in north Georgia with more than 40 years of experience.
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