San Antonio Mechanical Engineers

Mechanical Engineering Services for San Antonio & South Texas

HVAC Design, Plumbing Engineering & System Coordination for the San Antonio Market

Cleary Zimmermann Engineers is a San Antonio-based MEP engineering firm with more than 20 years of experience designing mechanical systems for projects across the Alamo City and South Central Texas. Our mechanical engineers, working from our San Antonio headquarters under Thomas Watson, PE, specialize in HVAC design, plumbing engineering, and full mechanical system coordination for a wide range of building types — from K-12 schools and hospitals to municipal facilities and commercial office space.

San Antonio’s climate puts real demands on building systems. The combination of intense summer heat, high cooling loads, low humidity relative to the coast, and occasional winter freezes means mechanical systems need to be sized, specified, and coordinated with precision from the start. As the firm’s founding office, our engineers bring genuine local knowledge — the local energy codes, the building types common to the San Antonio market, and the contractors and project teams that operate here.

Mechanical Engineering Services in San Antonio

Our mechanical engineering team provides comprehensive design services across all project phases — from schematic design and design development through construction documents and construction administration support.

• HVAC System Design: Heating, ventilation, and air conditioning design for new construction and renovation projects — including system type selection, equipment specification, load calculations, and ductwork layout tailored to South Texas conditions.
• Plumbing Engineering: Domestic water supply and distribution, sanitary and storm drainage, fixture scheduling, and specialty systems including medical gas for healthcare facilities.
• Energy Modeling & Code Compliance: Mechanical system design aligned with the International Mechanical Code and Texas energy code requirements administered by the State Energy Conservation Office, including applicable ASHRAE standards.
• Controls Coordination: Integration of HVAC and plumbing systems with building automation and controls platforms, ensuring systems operate efficiently and as intended after turnover.
• Commissioning: Functional testing and verification that mechanical systems are installed and performing according to design intent and owner’s project requirements.
• Construction Administration: Submittal review, RFI responses, and periodic site observation to support contractors and confirm design intent carries through to the finished building.

San Antonio Project Experience Across Key Sectors

As the firm’s headquarters market, our San Antonio mechanical engineers have deep experience across the sectors that drive the region’s growth.

• Healthcare: San Antonio’s healthcare sector is anchored by University Health, Baptist Health System, Methodist Healthcare, Christus Health, and Brooke Army Medical Center. We design mechanical and plumbing systems that meet the pressurization, ventilation, and redundancy standards healthcare construction requires.
• K-12 Education: South Texas school districts are building and renovating at a steady pace, and our team designs MEP systems for new campuses and bond-funded renovations alike.
• Higher Education: San Antonio’s mix of large research institutions, private universities, and community colleges gives our mechanical engineers experience across the full range of campus building types.
• Municipal & Government: City and county facilities, public safety buildings, and community infrastructure across South Texas require durable, long-lasting mechanical systems designed for code compliance and operational reliability.
• Commercial: Office buildings, mixed-use developments, and retail centers throughout San Antonio benefit from mechanical systems designed to meet modern energy efficiency standards while keeping occupants comfortable in a high-heat climate.

Connect With Our San Antonio Mechanical Engineering Team

Whether you’re in the early stages of planning or ready to get a project moving, our San Antonio mechanical engineering team is ready to help. As the firm’s founding office, we bring the deepest local track record of any market we serve.

Contact Cleary Zimmermann to connect with our San Antonio team and get the conversation started.