⟵ hvacMENSCH

Founded by John K. Chavez, an HVAC-R veteran with nearly four decades of hands-on experience and industry education, hvacMENSCH provides permit ready MEP designs with Oscar Villarreal, P.E., critical services rooted in engineering fundamentals, best practices, building science, and a deep commitment to indoor air quality. We serve building owners, contractors, architects, builders, real estate professionals, and manufacturers with system design, performance analysis, consulting, and owner representation—grounded in both technical expertise and real-world insight. Whether residential, commercial, or industrial, every project benefits from our focus on healthy air, durable buildings, and smart, efficient systems. As your advocate, hvacMENSCH is dedicated to delivering exceptional results for every client.

"Crafting comfort with purpose and compassion.”

- Full MEP Design
- Indoor Air Quality Assessments and Monitoring
- Technology Comparisons
- Equipment Analysis
- Problem Project Resolution or Rescue
- HVAC Calculations
- Ventilation Schemes
- Humidity Control
- Building Science
- Commissioning
- Concierge Services
- And more...