HVAC Maintenance

Reducing Owning/Operating Costs With Preventative Maintenance Solutions Learn More

Energy Solutions

Specializing in Positively Impacting your Building’s Energy Consumption Learn More

Project Design

Equipped with Knowledge and Experience to Handle all Aspects of your Design Build Project Learn More

Trusted Partner

Providing the Standard of Excellence Since 1945 Learn More

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Call (478) 475-4118 Learn More
  • Request A Consultation

    If you are ready for peace of mind and want to reduce your HVAC owning and operating costs, contact us today!

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  • Partners

    Hays Service is proud to be partnered with Linc Service, KMC Controls, and North American Technician Excellence.

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  • Our Team

    Hays Service is a fourth generation, family-owned business, and we are proud of our professional, experienced team.

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Latest News

  • The Future of Air Conditioning

    Through improved controls and new cooling technologies, the HVAC industry is working to reduce the energy consumption of air conditioning systems worldwide.
  • Let’s Talk About Value!

    After a sweltering summer, we’re all happy that fall is around the corner. Leaves are falling, and cooler mornings have us waking up refreshed. So,
  • Happy Labor Day!

    Sometimes you just have to say it: Dadgum, it has been hot lately! With Labor Day being celebrated this month, it no better time to


"Calvin, I wanted to take the time to thank you and Hays service for the last 24 years of contracted services with McNeal Agency. Over those years your professional staff has shown up each quarter to perform the PM service. Having the PM contract has taken away the bothersome duty of having to remember and contact someone to perform that service. In addition, I..."
Donnie Powell McNeal Agency, Inc.
"Our 50-year relationship with Hays Service has been crucial in dealing with the HVAC challenges of our many historic buildings, as well as the special needs of our newer high tech spaces on campus. Their expertise, commitment to service, and sensitivity to our needs builds confidence and trust from the boardroom to the classroom. Over the past few years, our multi-million dollar bundled energy..."
Richard P. Maier V.P. Fiscal Affairs, Wesleyan College
"I never worry about my HVAC as Hays Service is there whenever necessary to repair or inspect and take care of anything else which needs to be done with our units. I highly recommend their service. You get your money’s worth."
David Green Owner, Perimeter Crossing Office Complex
"My experience with Hays Service has been excellent. They have experienced personnel at all levels from sales to service. They not only perform as promised in their written agreement but they back it up with performance reports. We have experienced reduced energy consumption since Hays Service has been involved."
Jack Bell Facility Director, Rockwell Automation
"Hays Service has provided service for me at two different times in my vocational career. While Director of Facilities with Goodwill Industries and Maintenance Manager with the Georgia Public Safety Training Center, Hays Service provided routine maintenance, emergency services, and project installations. I highly recommend this company. They really do what they obligate themselves to in the area of facility maintenance."
Gary Horton, C.E.M. Physical Plant Manager at Georgia Department of Public Safety
"Cal Hays has a building full of conscientious staff and well trained heating and air service technicians. In the three occasions Hays Service has been engaged for clients of mine there has been an immediate savings and better air control than before they came aboard. Their components knowledge has provided significant systems maintenance savings for two public entities and a large retail development my..."
Art Barry III Chief Executive Officer at Coldwell Banker Commercial Eberhardt and Barry Inc.