Shafer Mechanical

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210-660-4434

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7am - 5pm, Mon-Fri

24-Hour Emergency Service

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We usually respond within 24 hours. Alternateively you’re welcome to call our offices.
2972 Westheimer Rd., Illinois 85486

(084) 123 - 456 88

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HVAC Package Unit Services

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Call Us

210-660-4434

Office Hours

7am – 4:30pm, Mon-Fri

24-Hour Emergency Service

Kristin Buchhorn
The RK Group
“For the last few months, the team at Shafer Mechanical has been invaluable to operations here and my own workload. This account is certainly a demanding one for several reasons. We have a lot to maintain, including the large office warehouse building and a historic mansion as well as a new office building and mobile asset units. We have unique systems to maintain, namely because of the design and specs of our components. We have difficult systems to maintain, partially because of the design and mostly because we run the system in overdrive regularly. We also, like other accounts, hope to be the first to gain attention from the service schedule when an issue arises. Through all the woes, issues, and challenges – the team at Shafer has been phenomenal at addressing all HVAC and plumbing opportunities. Thorough communication, timely responses, follow through, kind personalities, and effective results. It is not easy to find a contractor or partner that can hit all those qualities. Arguably most important, the consistency of those qualities is incredible. Thank you and your team for the partnership. I look forward to working together.”
Asia Ciaravino
President and CEO of SA Youth
“By donating HVAC repairs and installation, Shafer Serves is helping SA Youth focus on providing much-needed supplies and educational opportunities to students who are a part of our program. It’s been an impactful gift not only for our organization but for the youth of San Antonio.”
Swan’s Landing Assisted Living
“We have been using Shafer HVAC since first construction. Our Assisted Living facility had a leak today from the attic. We called and the technicians showed up within an hour. They diagnosed, explained the problem, and fixed the problem in no time. The technicians are Chuck and Nick- thank you both for their kind hearts.”
Azuri Russell
Boys & Girls Clubs of San Antonio
“Shafer Mechanical is the definition of Professionalism! They truly value and understand the needs of the customer. Shafer has been our HVAC and Plumbing vendor for over a year, and we can honestly say they have been there for us. Shafer are the experts! They have always been able to come out quickly to our locations, identify the issues, repair, and provide preventive maintenance. We have built a true partnership with Shafer Mechanical!”
Sandy Merrill
Former Guide Dogs of Texas CEO and certified Guide Dog Mobility Instructor
“We’re so grateful for this ‘in kind’ donation from Shafer Mechanical! Having well-maintained and high-quality HVAC systems on campus is a critical component of keeping our clients, staff, volunteers, and dogs safe and comfortable. This partnership also allows us to put more resources directly into preparing future generations of guide dogs for Texans who are blind. Thanks to Shafer Serves, more people will be able to benefit from these amazing guide dogs.”
Assistance League of San Antonio
“I’ve been depending on Shafer Mechanical for years. Service is quick and dependable, and their servicemen are knowledgeable professional. They already do a terrific job. Bruce Hull, changed all of the filters our 13 units with multiple supply inlets.”
Alamo Quarry Market
We truly appreciate everyone’s quick response in getting things handled 😊 Everyone of your technicians have been soo awesome!
The Witte Museum
“The Witte’s H-E-B Body Adventure exhibit creates a culture of wellness that has a lasting impact on the health of our region and our nation; so, it really was the ideal place for Shafer Mechanical to install an air purification system that helps keep people safe while they continue to learn about wellness.”
Swans Landing
Assissted Living
”We have been using Shafer Mechanical for HVAC service since construction. Our assisted living facility had a leak from the attic. We called and the technicians showed up within an hour. They diagnosed, explained the problem, and fixed the problem in no time. The technicians were Chuck and Nick- thank you both for their kind hearts.”
Boys & Girls Clubs of San Antonio
“Shafer Mechanical is the definition of professionalism! They truly value and understand the needs of the customer. Shafer has been our HVAC and plumbing vendor for over a year, and we can honestly say they have been there for us. Shafer team members are experts! They have always been able to come out quickly to our locations, identify issues, repair, and provide preventive maintenance. We have built a true partnership with Shafer Mechanical!”
Assistance League
San Antonio
“I’ve been depending on Shafer Mechanical for years. Service is quick and dependable, and their service staff is knowledgeable and professional They always do a terrific job. Bruce Hull changed all filters for our 13 units with multiple supply inlets.”
Studio 6
“Awesome! Will definitely call y’all again for my future boiler needs.”
Oblate School of Theology
“In the last 6 months we have been working very close with Shafer Mechanical. There have been a couple of guys who have come out who were extremely helpful and knowledgeable. I have worked closely with all them, but Chuck has gone above and beyond. On Saturday March 30th (holiday weekend), we had a large wedding at our center and the AC was not working properly. I called him directly and he walked me through a couple of things but still could not get it going. So, he came in, figured out the problem, and got the AC to work; and we were able to hold a successful wedding here at our center. That is just one of the stories and great things that Shafer has done for us.”
Eleanor Kolitz
Hebrew Language Academy
“Jordan is polite, professional, and always willing to explain the issue if we don’t understand.”

Efficient, Reliable HVAC Solutions for Every Space

At Shafer Mechanical, we specialize in delivering top-tier unitary HVAC equipment solutions designed for reliability, efficiency, and performance. Our selection of Direct Expansion (DX) systems ensures that we can meet the specific cooling needs of commercial and industrial clients, no matter the size or complexity of the project.

Our Unitary HVAC Equipment Offerings

Our comprehensive range of DX HVAC equipment allows us to provide both service and replacement expertise across the following categories:
  • DX Packaged Rooftop Units: Ideal for commercial buildings, DX packaged rooftop units offer a self-contained heating and cooling solution that is efficient, versatile, and easy to install. These units are designed for durability and performance, providing a cost-effective solution for managing indoor air quality and comfort.
  • DX VAV Packaged Rooftop Units: Combining the efficiency of Direct Expansion cooling with the flexibility of Variable Air Volume (VAV) control, these units offer unparalleled efficiency and adaptability. Designed to adjust cooling output based on the specific demands of different zones, DX VAV packaged rooftop units optimize energy use while ensuring consistent comfort throughout your facility.
  • DX Split Systems: For applications requiring flexible installation and high efficiency, our DX split systems offer an effective solution. Composed of an outdoor condensing unit and one or more indoor units, these systems provide targeted cooling and heating with the advantage of easy expansion and minimal visual impact. Ideal for spaces where a compact and customizable solution is needed, DX split systems deliver performance and reliability.

Why Choose Shafer Mechanical?

  • Expertise: Our team's extensive knowledge of unitary HVAC systems ensures that we can design, install, and maintain the ideal solution for your specific needs.
  • Customization: We understand that every space has unique requirements. Our ability to customize solutions ensures that your HVAC system will meet the specific demands of your environment efficiently and effectively.
  • Quality: Partnering with leading manufacturers, we ensure that all our unitary HVAC equipment is of the highest quality, offering reliability and performance that our clients can trust.
  • Full-Service Support: From selecting the right system to installation, maintenance, and repairs, Shafer Mechanical provides comprehensive support to ensure your HVAC equipment operates at peak efficiency.

Get in Touch

For efficient, reliable unitary HVAC solutions, look no further than Shafer Mechanical. Contact us today to discuss how we can help you achieve the perfect climate control solution for your space.

Our Service Area

Shafer Mechanical has been serving the communities in San Antonio, Texas since 1988. And while our headquarters are in San Antonio, TX, we serve all of Texas! We’re currently active in the following cities:
  • Laredo
  • McAllen
  • Del Rio
  • Victoria
  • Harlingen
  • Round Rock

Shafer Mechanical