Diagnostic A/C Cooling & Heating Air Conditioning

Veteran owned & Operated

Retired Air Force "25 Years"

Servicing San Antonio Metropolitan Area!

Dive Right In!

Customer Care Program


Choose from one of our Customer Care Program Packages today!

Get Financing!


We understand sometimes repair or system replacement cost can be a burden. We've partnered with Square to offer financing!



Be sure to visit often as we add new specials throughout the year, don't miss out!

About Us

Reliable HVAC Professionals

Whether you need a routine maintenance check or an emergency repair on a cooling or heating system, we are available to handle  all of your needs. We continually strive to exceed expectations by ensuring that each client receives the very best service. We are your local San Antonio air conditioning contractor!

Individualized HVAC Options

We will work with you to find HVAC solutions that fit your heating and cooling needs. We will provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home or business.

Customer Satisfaction Guaranteed

We serve both residential and commercial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment, and our dedication to delivering  exceptional service to provide you with top quality service.


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Satisfaction Guaranteed

We strive to be in constant communication with our customers until the job is done. If you have questions or special requests, just drop us a line. Please contact us at your convenience. We look forward to serving you!

Diagnostic A/C Cooling & Heating

P.O. Box 573 Cibolo TX 78108

(210) 617-0369 service@diagnosticac.com



7:30 am – 7:30 pm


7:30 am – 7:30 pm


7:30 am – 7:30 pm


7:30 am – 7:30 pm


7:30 am – 7:30 pm


By Appointment


By Appointment

Monday - Friday: 7:30 am - 7:30 pm

Saturday - Sunday: By appointment only