San Antonio MEP Firm
Proud to be Your Trusted San Antonio MEP Firm
Cleary Zimmermann Engineers was founded in San Antonio in 2006, and this city has been our home base for every year of our more than 20-year history. As a mechanical, electrical, and plumbing (MEP) engineering firm, we’re not just present in San Antonio — we grew up here. Our San Antonio office is our largest team and the foundation from which we’ve expanded to Dallas, Austin, Houston, and Bryan/College Station. When you work with our San Antonio team, you’re working with the core of the firm.
Our San Antonio practice is led by three principals with distinct specialties: Thomas Watson, PE, leads Building MEP; David Bourassa, PE, leads our Healthcare Practice; and Trey McDougall, PE, leads Industrial MEP. That depth of dedicated leadership — across three of our most active service lines, all based in one office — is something no other market in our portfolio can match. Whether your project is a hospital, a school, a manufacturing plant, or a government facility, the right principal is here and engaged from day one.
MEP Engineering Services in San Antonio
Our San Antonio team delivers the full range of building MEP and industrial MEP services — mechanical, electrical, and plumbing engineering, commissioning, IT/security design, and water/wastewater engineering — all under one roof. Because every discipline is handled in-house and coordinated together, our clients get tighter documents, fewer field conflicts, and a single team accountable for the full MEP scope throughout design and construction.
- Mechanical Engineering: HVAC system design, load calculations, equipment selection, plumbing engineering, and energy code compliance for all building types across South and West Texas. San Antonio’s climate — intense summer heat with low humidity relative to the coast — demands mechanical systems sized accurately and specified for durability in a high-UV, high-heat environment.
- Electrical Engineering: Power distribution, lighting design, emergency and standby systems, low-voltage design, and utility coordination with CPS Energy and other providers across the San Antonio service area. We design for efficiency, code compliance, and long-term operational reliability across every sector we serve.
- Plumbing Engineering: Domestic water supply and distribution, sanitary and storm drainage, fixture scheduling, and specialty systems including medical gas for healthcare and laboratory environments. Edwards Aquifer recharge zone considerations apply to many South Texas projects and shape site drainage and plumbing design from the earliest stages.
- Commissioning: NEBB-certified and ACG-certified commissioning services for all building types and scales — from individual building systems to full campus programs. Our commissioning practice is one of our most established service lines, with decades of Texas project experience behind it.
- IT/Security Design: Data infrastructure, access control, surveillance, audio/visual, and communications systems design coordinated with the MEP scope from the start. San Antonio’s federal and military presence creates demand for IT/security design that meets government facility standards — a requirement our team is well-practiced in.
- Industrial MEP: Process cooling, specialized ventilation, high-demand power distribution, and mechanical systems for manufacturing plants, processing facilities, and industrial operations across South Texas. Our industrial practice is led by Trey McDougall, PE, and includes significant experience with large-scale manufacturing and industrial projects in the San Antonio region.
- Water/Wastewater Engineering: Municipal water and wastewater system design, treatment facilities, and infrastructure engineering. This service line sets Cleary Zimmermann apart from most MEP firms and is available to clients across our statewide footprint.
San Antonio Project Types We Serve
Twenty years of work in San Antonio means we’ve designed and commissioned MEP systems for nearly every building type active in this market. Each sector below has its own engineering requirements, regulatory landscape, and performance expectations — and each has a dedicated practice or principal behind it at Cleary Zimmermann.
- Healthcare: San Antonio is one of Texas’s largest healthcare markets — anchored by University Health, Baptist Health System, Methodist Healthcare, Christus Health, and Brooke Army Medical Center at Fort Sam Houston. David Bourassa, PE, leads our dedicated healthcare MEP practice, bringing the regulatory knowledge, clinical planning experience, and design depth that complex medical facilities demand. Explore our San Antonio healthcare MEP services.
- Hospital MEP: Acute care hospital facilities require MEP engineering at a level of complexity — emergency power, medical gas, critical environment pressurization, life safety coordination — that sets them apart from all other project types. Our San Antonio hospital MEP team has the credentials and experience those projects require.
- Healthcare MEP Services: From initial programming through construction closeout, our healthcare MEP practice covers the full spectrum of clinical facility types — hospitals, outpatient centers, surgery centers, imaging facilities, clinics, and medical office buildings. See our full San Antonio healthcare MEP services.
- K-12 Education: San Antonio is served by some of the largest school districts in Texas — Northside ISD, North East ISD, San Antonio ISD, Southwest ISD, South San ISD, and Edgewood ISD, along with a network of suburban districts across Bexar County and the surrounding region. We’ve designed MEP systems for new campuses, additions, renovations, and bond-funded programs throughout this market. Our San Antonio K-12 MEP practice has deep roots here.
- Higher Education: UTSA, Trinity University, St. Mary’s University, Texas A&M San Antonio, Our Lady of the Lake University, and the Alamo Colleges system all maintain active construction and renovation programs. We design MEP systems for academic buildings, research facilities, student housing, and campus infrastructure with a thorough understanding of higher education operational requirements. See our San Antonio higher education MEP practice.
- University MEP: Large research university environments present MEP coordination challenges unique to higher education — phased construction in occupied buildings, aging campus infrastructure, specialized lab ventilation, and central plant integration. Our San Antonio university MEP team is experienced across all of it.
- Military and Federal: Joint Base San Antonio — encompassing Fort Sam Houston, Lackland AFB, and Randolph AFB — is one of the largest military installations in the United States. Federal and military facility projects in San Antonio carry their own procurement requirements, security standards, and technical specifications. Our team has direct experience designing MEP systems for federal clients and understands what those projects demand.
- Medical Facilities: Outpatient clinics, ambulatory surgery centers, medical office buildings, imaging centers, and specialty care facilities require MEP systems designed to healthcare code standards outside the full complexity of an acute care hospital. Our San Antonio medical MEP practice serves the complete range of these facility types.
- Municipal and Government: City of San Antonio facilities, Bexar County buildings, public safety infrastructure, libraries, recreation centers, and community facilities require reliable, durable MEP systems built for long-term public service. Our team has delivered municipal MEP projects across South Texas for two decades.
- Industrial: Manufacturing plants, processing facilities, distribution centers, and large-scale industrial operations across the San Antonio region require MEP systems engineered for process-specific demands and operational continuity. Trey McDougall, PE, leads our industrial MEP practice and brings substantial experience in large-scale industrial projects in this market.
South Texas and Beyond — Our San Antonio Regional Footprint
Our San Antonio office serves a geographic footprint that extends well beyond Bexar County. As the firm’s largest team, we have the depth and capacity to support projects across South Texas, West Texas, and the Texas Gulf Coast — markets where there may not be a local engineering firm with the sector experience a complex project requires.
The communities we regularly serve from San Antonio include New Braunfels, Seguin, Boerne, Kerrville, Schertz, Cibolo, Converse, Universal City, and the Hill Country region to the west. Our reach also extends south to Laredo and the Rio Grande Valley — including McAllen, Edinburg, Harlingen, Brownsville, and the communities throughout South Texas. We serve the Corpus Christi market along the Gulf Coast, and our team has completed projects as far west as El Paso. For clients in any of these markets who need a firm with institutional-grade MEP capability and established Texas presence, San Antonio is the right starting point.
Twenty Years of Engineering in San Antonio
Cleary Zimmermann started here, grew here, and has invested in this market longer than any other. Our office at 1344 S. Flores Street in the Southtown neighborhood houses the largest concentration of our engineering staff — mechanical engineers, electrical engineers, plumbing engineers, commissioning agents, and project managers who work alongside each other every day. That proximity produces better coordination and more cohesive project delivery than a distributed team can.
Our leadership team is accessible and engaged. Thomas Watson, PE, David Bourassa, PE, and Trey McDougall, PE, are all based here and stay directly involved in project delivery — not as executive overseers, but as practicing engineers who know the current state of your project. That’s the culture of a firm that built its reputation on service, not scale.
We’re also proud of our commitment to San Antonio’s design and construction community. Our engineers recruit from UTSA and other local universities, we’ve maintained relationships with San Antonio architects and contractors for two decades, and our work is visible across the city — in schools, hospitals, government facilities, and industrial plants that serve hundreds of thousands of people every day.
Start Your San Antonio Project With Cleary Zimmermann
Whether your project is in San Antonio, the Hill Country, South Texas, or anywhere across our regional footprint, our team is ready to get to work. We’ve been building in this market for more than 20 years — and the relationships, knowledge, and depth we’ve built here are available to every client who brings us on.
Contact Cleary Zimmermann to connect with our San Antonio team and start the conversation. You can also explore our full MEP engineering services, review our project portfolio, or learn more about the firm and the people behind it.
Leadership
Thomas Watson, PE
Principal | Building MEP
Trey McDougall, PE
Senior Principal | Industrial MEP
San Antonio MEP Engineering — Frequently Asked Questions
Where is Cleary Zimmermann located?
Cleary Zimmermann Engineers is located in San Antonio, Texas, at 1344 S. Flores Street, Suite 101, in the Southtown neighborhood. The firm was founded in San Antonio in 2006 and has maintained its headquarters here throughout its more than 20-year history. You can reach the San Antonio office directly at (210) 447-6100.
What areas of South Texas does the San Antonio office serve?
The San Antonio office serves the full South Texas region, including San Antonio, New Braunfels, Boerne, Kerrville, Seguin, Schertz, Cibolo, Laredo, Corpus Christi, the Rio Grande Valley (McAllen, Edinburg, Harlingen, Brownsville), and El Paso. As the firm’s largest team, the San Antonio office has the capacity to support projects anywhere in South Texas, West Texas, and the Gulf Coast that may not have a local MEP firm with the required sector experience.
Does Cleary Zimmermann work on military and federal projects in San Antonio?
Yes. Joint Base San Antonio — which includes Fort Sam Houston, Lackland AFB, and Randolph AFB — is one of the largest military installations in the country, and federal and military construction is an active part of the San Antonio project landscape. Our team has direct experience designing MEP systems for federal clients and understands the procurement processes, security considerations, and technical specifications that military and government facility projects require.
Who leads the San Antonio MEP practice?
The San Antonio practice is led by three principals: Thomas Watson, PE, who leads Building MEP; David Bourassa, PE, who leads the Healthcare Practice; and Trey McDougall, PE, who leads Industrial MEP. Each principal stays directly engaged in project delivery within their respective practice area rather than delegating to project managers after contract execution.
What makes Cleary Zimmermann different from other San Antonio MEP firms?
Cleary Zimmermann was founded in San Antonio and has operated here for more than 20 years — which means deeper relationships with local architects, contractors, and owners than a firm that arrived from another market. The firm also offers a broader scope of in-house services than most competitors: building MEP, industrial MEP, commissioning, IT/security design, and water/wastewater engineering are all available under one roof. That breadth reduces the number of engineering consultants a project owner needs to manage and produces better-coordinated documents.
How long has Cleary Zimmermann been in business?
Cleary Zimmermann Engineers was founded in 2006, making it a 20-year-old firm as of 2026. The firm started as a San Antonio MEP engineering practice and has grown to five offices across Texas — San Antonio, Austin, Houston, Dallas, and Bryan/College Station — while maintaining its headquarters and largest team in San Antonio.
Inquiries
For general inquiries, please reach out to Joyce Watson, CPSM Principal of Marketing, at 210-447-6100, or use the following form.
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