About Us

Reliable HVAC Solutions for Homes and Businesses Across South Texas

At Miller Cooling & Heating, we believe exceptional HVAC service starts with trust. Since 2012, we have proudly provided dependable heating, cooling, indoor air quality, and ventilation solutions to homeowners and businesses throughout San Antonio and South Texas. Founded by Shawn Miller, our company was built on a commitment to honest communication, fair pricing, and quality workmanship.

With more than a decade of industry experience, our skilled team delivers professional HVAC installation, repair, maintenance, air duct services, furnace solutions, AC services, and indoor air quality improvements. We stay current with industry best practices while focusing on long-lasting results that enhance comfort, efficiency, and system performance.

Every project is approached with professionalism, attention to detail, and respect for our customers’ properties. Whether servicing a home or commercial facility, our goal remains the same: to provide reliable HVAC solutions that improve comfort, support healthier indoor environments, and exceed expectations from start to finish.

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(210) 248-6714

Schedule Your HVAC Service with Confidence Today

We make HVAC service simple with transparent pricing, dependable workmanship, and customized comfort solutions that help improve efficiency and system performance.

Read testimonials from our satisfied clients.

We recently had a new air conditioning system installed by Miller Cooling & Heating, and the experience was outstanding. The team arrived on time, explained the installation process clearly, and completed the work professionally. Our new system cools the entire house evenly, and we've already noticed improved energy efficiency. Highly recommend their AC installation services.

John M

When our air conditioner stopped working during a hot summer week, Miller Cooling & Heating responded quickly and diagnosed the issue right away. The technician was knowledgeable, courteous, and transparent about the repair options. The system was back up and running the same day. Excellent service from start to finish.

Samantha L.

We scheduled an air duct cleaning service and were impressed with the results. The technicians were professional, thorough, and respectful of our home. The air feels noticeably cleaner, and dust buildup has significantly decreased. We are very pleased with the quality of service provided.

David R

As a business owner, reliable HVAC service is critical. Miller Cooling & Heating has consistently provided professional commercial HVAC support for our facility. Their team is responsive, knowledgeable, and focused on minimizing disruptions to our operations. We appreciate their commitment to quality and customer service.

David and Lisa R