Business Details
35 Years
experience
Engineering Solutions for Complex Systems
Guth DeConzo approaches engineering with a commitment to personal attention and technical excellence. Since 1991, we have delivered over 5,000 successful projects across 25+ U.S. states and the Caribbean, specializing in design, construction management, and commissioning for complex systems. Our principals remain hands-on with every project, ensuring adherence to specifications while maintaining a focus on client relationships and sustainable solutions. With decades of combined experience, our team of 60+ professionals serves public institutions, developers, and corporations. We emphasize safety, precision, and innovation, particularly in high-stakes environments like airports and laboratories.Our work includes energy efficiency projects exceeding $120 million in capital upgrades and commissioning of critical facilities like BSL-3 labs. We maintain on-site presence throughout project lifecycles and prioritize post-completion evaluations to identify future improvements. Our leadership includes licensed engineers with expertise in MEP systems, energy conservation, and LEED certification. Client trust stems from our dedication to solving complex challenges, from initial design to final implementation. This philosophy has earned partnerships with organizations like Delta Airlines, Honeywell, and Pfizer.
Services
Energy Studies
Design Services
Construction Management
Commissioning
Engineering Consulting
Details
- Year established: 1991
Highlights and features
- We maintain hands-on principal involvement in every project
- Our team includes LEED-certified and CCP-commissioning professionals
- We've implemented $120M+ in energy conservation upgrades
- We specialize in high-risk environments like BSL-3 laboratories
- Our 60+ staff members average 20+ years of industry experience
Services
Energy Studies
Our energy studies identify efficiency opportunities in complex systems. We create master plans and coordinate BMS controls to achieve peak performance. Clients benefit from $11M+ annual energy savings across completed projects.
Design Services
We deliver technical design solutions for HVAC, electrical, and plumbing systems. Our approach combines field accuracy with client requirements, achieving outcomes like laboratory energy cost reductions and NYC's first inverter-based gas engine installation.
Construction Management
Our construction management ensures specification compliance through on-site monitoring. With 20+ year veteran staff, we manage procurement to closeout while maintaining safety and cost efficiency for multi-phased projects.
Commissioning
We validate MEP systems using advanced testing equipment. Our commissioning process includes retro-commissioning and continuous monitoring, demonstrated through successful projects like a $150M medical facility expansion and BSL-3 lab certification.
Engineering Consulting
Our consulting covers fire protection, critical power systems, and utility infrastructure. We've completed 2,000+ projects for municipalities and private corporations, focusing on code compliance and operational efficiency improvements.
People
John Guth
Principal
With 37+ years of experience, John Guth founded Guth DeConzo in 1991. He oversees all projects, holds engineering licenses in 20+ states, and teaches at Pratt Institute and City College of New York.
Jeremy McDonald
Principal
Jeremy McDonald brings 25+ years of MEP design expertise. As a LEED-certified engineer and Certified Energy Manager, he leads commissioning projects and teaches at Rensselaer Polytechnic Institute.
Questions
What engineering services does Guth DeConzo offer?
We provide energy studies, design services, construction management, and commissioning for complex building systems across commercial, institutional, and transportation sectors.
Do you handle large-scale infrastructure projects?
Yes, we've completed projects valued up to $250 million, including medical towers, airport renovations, and campus-wide energy master plans.
Are your engineers certified in sustainability practices?
Our team includes LEED-certified professionals, Certified Energy Managers, and CCP-commissioning specialists with expertise in sustainable solutions.
How does Guth DeConzo ensure project quality?
We maintain on-site presence during implementation, conduct rigorous testing with state-of-the-art equipment, and have principals involved in every project phase.
What industries do you specialize in?
We focus on high-demand environments including airports, laboratories, healthcare facilities, and educational institutions requiring precise engineering solutions.
