Business Details
33 Years
experience
Trusted Structural Engineering Services in Seattle
CSES Engineering is a dedicated structural engineering firm specializing in residential and commercial construction projects. Our expertise lies in delivering cost-effective, optimized structural designs tailored to client needs while maintaining rigorous attention to construction budgets. With over 25 years of experience, our principal engineer personally oversees every project, ensuring precision and efficiency from concept to completion. Our streamlined operations and low overhead enable competitive pricing and rapid turnaround times without compromising quality.We serve homeowners, contractors, and developers across Seattle and Eastern Washington, providing full-service engineering solutions for new builds, remodels, and structural repairs. Our team combines decades of regional experience with advanced technical knowledge to address complex challenges in wood framing, foundation design, seismic safety, and multifamily construction. Client satisfaction remains our priority, reflected in our commitment to transparent communication, flexible collaboration, and guaranteed adherence to project timelines and cost estimates.
Services
Residential Structural Design
Commercial Building Engineering
Foundation Design & Repair
Seismic Retrofitting
Home Remodel Engineering
Multifamily Construction
Structural Inspections
Permit Documentation
Cost Optimization
Tenant Improvements
Details
- Year established: 1993
Highlights and features
- We offer 25+ years of specialized structural engineering experience.
- Our principal engineer personally oversees every project for quality assurance.
- Competitive pricing achieved through optimized workflows and low overhead.
- Guaranteed on-time delivery with transparent cost estimates.
- Deep expertise in Seattle-area building codes and geological conditions.
What people say
Timely service
Reasonable rates
Professional expertise
Flexible collaboration
Great phone support
Services
Residential Structural Design
Specialized structural engineering for new residential construction and major renovations. Our designs balance code compliance with cost efficiency through optimized material selection and construction methods. Clients receive detailed permit-ready plans and ongoing support throughout the building process.
Commercial Building Engineering
Comprehensive structural solutions for commercial new builds and tenant improvements. We address complex loading requirements, accessibility standards, and long-term durability while maintaining budget constraints. Services include foundation design, framing plans, and seismic upgrades for retail, office, and industrial spaces.
Foundation Design & Repair
Expert evaluation and design for new foundations or repair of existing systems. We analyze soil conditions, structural loads, and environmental factors to create durable solutions. Services cover slab-on-grade, pier-and-beam, and deep foundation systems for residential and light commercial structures.
Seismic Retrofitting
Specialized reinforcement solutions to enhance structural resilience against seismic activity. Our engineers assess vulnerabilities and implement code-compliant upgrades using diagonal bracing, shear walls, and connection strengthening techniques tailored to existing wood-frame buildings in seismically active regions.
Home Remodel Engineering
Structural planning for basement finishing, ceiling height increases, and major renovations. We ensure modifications maintain structural integrity while meeting building codes. Services include load calculations, reinforcement specifications, and coordination with contractors for seamless implementation.
People
John S. Apolis
Principal Engineer
With 25+ years of structural engineering experience, John oversees all CSES projects. He specializes in Seattle-area construction challenges, including seismic retrofitting and cost-effective residential design. His career spans diverse projects from single-family homes to multistory bridges.
Giri Devaraju
Structural Engineer
Giri brings extensive commercial and multifamily construction expertise from his engineering career in India and the U.S. He specializes in optimizing structural systems for mid-rise buildings, ensuring both code compliance and construction efficiency for complex projects.
Evan Apolis
Associate Engineer
A UW Civil Engineering graduate, Evan contributes precision and technical skill to CSES projects. He focuses on residential remodels and commercial designs, applying modern engineering principles to deliver cost-effective solutions while maintaining rigorous attention to detail.
Sasha
Office Manager
Sasha manages client communications and site visits while maintaining office operations. Known for her personable approach, she ensures smooth coordination between clients, engineers, and contractors throughout the project lifecycle.
Questions
What types of projects does CSES Engineering handle?
We specialize in residential and commercial structural engineering, including new construction, remodels, foundation design, seismic retrofitting, and permit documentation for Seattle and Eastern Washington.
How does CSES ensure cost-effective designs?
Our streamlined processes and low overhead allow competitive pricing. We optimize material selection and construction methods while maintaining structural integrity and code compliance for every project.
Can CSES assist with urgent engineering needs?
While we don't offer emergency services, our efficient workflow ensures rapid turnaround for standard projects, often completing designs within tight deadlines without compromising quality.
What experience does CSES have with Seattle's building codes?
With 25+ years serving the region, we have extensive expertise in local codes, soil conditions, and seismic requirements specific to Seattle and Eastern Washington construction projects.
How does CSES handle communication during a project?
We maintain direct communication through phone support, email updates, and document sharing to ensure clear understanding of structural requirements and project progress.
