HVAC Installation in San Antonio

Design-Build HVAC Installation Backed by Three National Excellence Awards

For over 34 years, A/C Technical Services has installed and replaced HVAC systems for homeowners, businesses, and industrial facilities across San Antonio, Central Texas, and South Texas. We’re locally owned and operated, and every installation is handled by licensed, insured technicians who know what San Antonio’s climate demands from a system.

What sets our installation work apart is design-build capability and in-house sheet metal fabrication. When a project requires custom ductwork or a complex multi-zone configuration, we build it ourselves rather than outsourcing or adapting off-the-shelf components. That’s a documented capability not found on many HVAC installation pages in San Antonio.

Documented Installation Quality

Our ABC accreditation from Associated Builders and Contractors reflects a verified standard of contractor quality, and our project record backs it up. A/C Technical Services received the National Excellence in Construction award from Associated Builders and Contractors for three separate San Antonio-area projects: Haven for Hope (2009), San Antonio Business Park (2010), and St. Mark’s Episcopal Church (2008). These awards recognize completed commercial installations, not just company credentials.

Our team stays active in local and national industry organizations and brings that knowledge to every commercial HVAC project we plan and build. Our goal on every job is straightforward: complete customer satisfaction, on-time arrival, and clean, safe work in your facility.

How We Approach Each Installation

No two properties have the same layout, load requirements, or ductwork condition. Before we install anything, we evaluate your property’s specific needs to determine the right system size and design. That assessment is what helps prevent the common mistake of dropping in an oversized or undersized unit that struggles to perform.

The City of San Antonio requires a mechanical permit for HVAC installation and replacement work. For air conditioning equipment replacement on existing electric systems in one- and two-family homes, the city administers a Load Side Replacement (LSR) permit program. We handle permitting so you don’t have to track it yourself.

When a project calls for custom components, our in-house sheet metal fabrication gives us direct control over fit, quality, and timeline. Custom ductwork is fabricated to your system’s actual specifications rather than adapted from standard parts.

Systems We Install & Customers We Serve

We install and replace central air conditioning and heating systems, ductless mini-splits, heat pumps, and boilers. Our custom design-and-build capability extends to complex commercial and industrial systems where standard equipment configurations don’t fit the space or load.

We serve residential customers replacing aging equipment, commercial property owners upgrading to more efficient systems, and industrial facilities with specialized mechanical requirements. Spanish-speaking technicians are available for customers who prefer to work in Spanish.

Get Your Free Installation Estimate

Free estimates take the guesswork out of budgeting for a new system. Financing and warranty options are available, and we offer same-day service and 24/7 availability for urgent situations.