Shafer Mechanical

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2972 Westheimer Rd., Illinois 85486

(084) 123 - 456 88

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Direct Expansion Systems

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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.”

Advanced Retrofit Solutions for Enhanced Efficiency

Shafer Mechanical specializes in retrofitting Direct Expansion systems (DX systems), offering comprehensive solutions to upgrade your HVAC equipment for optimal performance and energy efficiency. Whether you’re looking to retrofit rooftop package units, DX split systems, or VRV/VRF systems, our expertise ensures that your HVAC retrofit project meets the specific needs of your facility with minimal disruption.

Rooftop Package Equipment Retrofit

Rooftop package units are a common solution for commercial and industrial buildings due to their efficiency and ease of maintenance. Over time, however, these systems can become less efficient. Our rooftop package equipment retrofit services provide the following benefits:
  • Upgrading to High-Efficiency Units: We replace outdated equipment with modern, energy-efficient units, reducing operating costs and improving cooling capacity.
  • System Optimization: Beyond simple replacement, we optimize the entire system for better performance, including ductwork adjustments, controls upgrades, and airflow improvements.

DX Split Systems Retrofit

DX split systems offer flexibility for heating and cooling specific areas of a building. Our retrofit services for DX split systems focus on:
  • Component Upgrades: Replacing older components with high-efficiency models, including compressors, condensing units, and evaporators, to enhance overall system efficiency.
  • System Expansion: When additional heating or cooling is needed, we can expand existing DX split systems to cover new areas, ensuring consistent comfort throughout the building.

VRV/VRF Systems Retrofit

Variable Refrigerant Volume (VRV) or Variable Refrigerant Flow (VRF) systems provide unparalleled control over heating and cooling in various zones of a building. Retrofitting these systems involves:
  • Advanced Control Solutions: Integrating modern control technologies to improve the usability and efficiency of existing VRV/VRF systems, allowing for precise temperature management across different zones.
  • System Upgrades: Replacing older VRV/VRF components with the latest models to enhance energy efficiency, reduce operational noise, and lower maintenance requirements.

Why Partner with Shafer Mechanical for Your DX System Retrofit?

  • Expertise in Retrofit Projects: Our specialized knowledge in retrofit projects ensures that your DX system upgrade is handled with the utmost professionalism, from initial assessment to final testing.
  • Customized Solutions: We tailor every retrofit project to meet the unique demands of your facility, ensuring optimal performance and efficiency gains.
  • Quality and Reliability: By partnering with leading manufacturers and utilizing cutting-edge technology, we guarantee that your retrofit project will deliver reliability and performance for years to come.
  • Energy Savings: Our focus on high-efficiency solutions not only improves your HVAC system's performance but also significantly reduces energy consumption and operational costs.

Upgrade Your Direct Expansion System with Shafer Mechanical

If your Direct Expansion system is due for an upgrade, Shafer Mechanical is here to provide expert retrofit solutions. From rooftop package units to advanced VRV/VRF systems, we have the expertise to enhance your HVAC equipment for improved efficiency and comfort. Contact us today to discuss your retrofit needs and discover how we can transform your existing HVAC system.

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