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Business Details
16 Years
experience
Trusted Structural Engineering Services in Visalia, CA
Founded in 2010, Zeltmacher Structural Design Engineering was established to deliver structural engineering excellence rooted in technical precision and enduring client relationships. Our firm combines over 15 years of collective experience with advanced technologies to provide code-compliant, efficient solutions tailored to diverse project needs. We specialize in structural systems design, seismic hazard analysis, and BIM modeling, serving municipal, industrial, and residential sectors.

Our client-first ethos prioritizes clear communication, responsiveness, and dependability, fostering trust and long-term partnerships. Licensed across 12 states, we uphold rigorous safety standards and industry best practices while empowering our team to innovate and lead in structural engineering.
Services
Structural Systems Design Seismic Hazard Analysis Revit Modeling AutoCAD Drafting Agency Plan-Check Services CalARP Seismic Assessments Structural Consultation Retrofit Solutions BIM Coordination 3D Structural Modeling
Details
  • Year established: 2010
Highlights and features
  • We offer over 15 years of structural engineering expertise with a client-first approach.
  • Our team utilizes advanced technologies like Revit and AutoCAD for precise solutions.
  • Licensed in 12 states, ensuring broad regulatory compliance and service coverage.
  • Prioritize clear communication and tailored solutions for every project phase.
  • Committed to continuous innovation in seismic safety and structural design.
Services
Structural Systems Design
We deliver code-compliant, efficient structural systems using wood, steel, concrete, and masonry. Our solutions cater to new construction, tenant improvements, and complex industrial projects, ensuring safety, constructability, and cost-effectiveness. Clients benefit from tailored designs that align with evolving project timelines and regulatory standards.
Seismic Hazard Analysis
Our seismic analyses adhere to FEMA, ASCE 7, and ICSSC guidelines, evaluating risks for retrofitting or new builds. We specialize in California's CalARP Program requirements, helping clients mitigate risks and meet compliance for facilities handling hazardous materials through data-driven engineering solutions.
Revit Modeling Services
Our BIM specialists create precise 3D structural models using Autodesk Revit, enhancing interdisciplinary coordination and clash detection. This streamlines construction workflows, reduces errors, and supports visualization for complex projects, ensuring alignment between design intent and field execution.
AutoCAD Drafting Services
We produce accurate, fully coordinated structural drawings using AutoCAD, ensuring seamless integration with architectural and MEP plans. Our drafting services prioritize clarity and buildability, minimizing field errors and accelerating permit approvals for residential and commercial projects.
Agency Plan-Check Services
We provide thorough structural plan-check reviews for local jurisdictions, verifying compliance with building codes and safety standards. Our services expedite permit approvals while upholding public safety, particularly for complex municipal and industrial projects requiring rigorous regulatory adherence.
People
Andrew Randolph
President
With over 25 years of experience, Andrew leads Zeltmacher's strategic growth and client relationships. His expertise spans structural design and industry best practices across western U.S. projects. He holds licenses in multiple states and focuses on fostering team development.
Ryan Fitzpatrick
Vice President
Ryan specializes in seismic retrofitting and commercial structures, combining leadership with hands-on project delivery. A licensed engineer in five states, he actively contributes to ASCE and SEAOC, ensuring technical excellence and client satisfaction.
Mike Auchter
Professional Engineer
Mike brings 20+ years of project management experience, excelling in industrial and public-sector projects. He emphasizes client communication and precision, ensuring projects meet timelines and exceed structural performance expectations.
Heladio Ceballos
Professional Engineer
Heladio delivers technical expertise in structural design and project execution. With licenses in three states, he mentors junior engineers and drives Zeltmacher's iQuality Program, ensuring meticulous attention to detail and client-focused outcomes.
Nicolas Corrales
Professional Engineer
Nicolas specializes in Revit implementation and structural design for diverse materials. He leads Zeltmacher's social initiatives, blending technical innovation with team engagement to enhance project efficiency and workplace culture.
Questions
What structural engineering services does Zeltmacher offer?
We provide structural systems design, seismic hazard analysis, Revit/AutoCAD drafting, agency plan-check reviews, and CalARP seismic assessments for commercial, industrial, and residential projects.
In which areas does Zeltmacher operate?
We serve clients across California and 12 licensed states, including Visalia, Bakersfield, Tulare County, and Pixley, with nationwide project capabilities.
How experienced is Zeltmacher's team?
Our engineers have over 15 years of combined experience, with licenses in multiple states and expertise in seismic retrofitting, BIM modeling, and code-compliant design solutions.
Can Zeltmacher assist with regulatory compliance?
Yes, we offer agency plan-check services and CalARP seismic assessments to ensure projects meet local, state, and federal regulatory standards for safety and compliance.
Does Zeltmacher work on residential projects?
Yes, we provide structural design and retrofit solutions for high-end residential properties, ensuring safety, functionality, and alignment with client visions.