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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2972 Westheimer Rd., Illinois 85486

(084) 123 - 456 88

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Commercial New Construction

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Call Us

210-660-4434

Office Hours

7am – 5pm, 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. 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.”
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.”

Built for Performance. Backed by Service.

At Shafer Mechanical, Commercial New Construction is more than installation. It is a long-term partnership built on technical strength, responsive communication, and a service-first mindset.

For more than a century, our name has been trusted across San Antonio’s commercial landscape. Today, we bring that same legacy of innovation and reliability to new construction projects across the region.

From early design coordination to final commissioning, we focus on delivering mechanical systems that perform on day one and continue performing long after turnover.

Local Expertise That Moves Projects Forward

Unlike statewide competitors, our leadership and operations teams are based right here in San Antonio. That matters.

Being local allows us to:

  • Respond quickly to project needs and field changes.
  • Coordinate efficiently with general contractors and project managers.
  • Understand local codes, permitting processes, and inspection standards.
  • Provide direct access to decision-makers when timing is critical.

We know this market because we have helped build it for generations. That experience translates into smoother execution and fewer surprises.

A Service-First Model in a Construction Environment

Many mechanical contractors are construction-first. We are service-first.

Our business was built on responsiveness, communication, and long-term customer relationships. That mindset carries directly into our Commercial New Construction division.

For general contractors and developers, this means:

  • Clear, proactive communication throughout the project.
  • Accurate scheduling and coordination with other trades.
  • Fast response to RFIs and field adjustments.
  • A partnership approach instead of a transactional one.

We understand that construction schedules are tight and accountability matters. Our teams are structured to support the project from planning through post-installation service.

Design-Build Capabilities

Shafer Mechanical offers in-house design-build expertise that many local competitors do not.

Our team can:

  • Collaborate early in pre-construction.
  • Develop practical, performance-driven system designs.
  • Engineer solutions that align with budget and operational goals.
  • Reduce conflicts through coordinated planning.

By integrating design and installation, we streamline communication, reduce rework, and support better overall project outcomes.

Let’s Build It Right From Day One

If you are planning a commercial project in San Antonio or the surrounding region, our team is ready to collaborate early and execute with precision.

Contact Shafer Mechanical to discuss your Commercial New Construction needs and discover what it means to work with a local mechanical partner backed by generations of experience and a service team that stands behind every system we install.

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