Licensed Structural Engineer Serving the Puget Sound & Greater Seattle Area
Your Trusted Structural Engineering Firm in Seattle




Structural Engineering Services

New Construction Structural Design
Comprehensive structural design services for new single-family homes and Accessory Dwelling Units (ADUs) across the Greater Seattle Area. We provide permit-ready plans, load calculations, and seismic design in compliance with IBC, IRC, and local city codes.

Remodel & Load-Bearing Wall Removal

Structural Inspections & Engineering Assessments

Foundation Repair Design

Foundation Engineer for Foundation Repair & Inspection
We specialize in comprehensive foundation repair services, employing advanced techniques such as helical piles for sturdy, long-lasting support and carbon fiber for foundation crack repair. If you’re facing a sinking foundation, our team uses industry-leading solutions to stabilize and restore the integrity of your home or building. Each inspection is thorough, identifying potential problems and devising a strategic plan tailored to your specific needs.
Load Bearing Wall Removal
Removing a load-bearing wall can significantly enhance the functionality and spaciousness of your home or building. Our structural engineers assess the structural integrity and provide tailored solutions to safely manage the removal process. We ensure compliance with all local building codes, utilizing our strong relationships with city reviewers to expedite permits. Our detailed engineering packages cover every aspect, from initial assessment to final execution, ensuring a seamless transition.


Vaulted Ceiling Conversion
Transform your space into an open, airy environment by converting your traditional flat ceilings into stunning vaulted or cathedral ceilings. This architectural upgrade not only enhances the aesthetic appeal of your home but also increases natural light and can even boost property value. Our expert team specializes in the structural modifications required for safe and beautiful vaulted and cathedral ceiling conversions.
As-Built Drawing
As-Built drawings are crucial for any renovation or permitting process, providing detailed representations of existing structures. Our service includes comprehensive onsite measurements and surveys to ensure accuracy and compliance. We specialize in creating precise floor plans that are essential for smooth permitting and efficient remodel planning. By leveraging our expertise, clients can streamline their construction projects and avoid potential setbacks.

Frequently Asked Questions (FAQs)
A structural engineer can specialize in foundation work, but they are not limited to it. While a foundation engineer focuses specifically on the design and analysis of building foundations, a structural engineer handles a broader range of structural systems, including foundations, buildings, bridges, and other structures.
A civil engineer covers a wide range of engineering disciplines, including transportation, environmental, geotechnical, water resources, and construction. A structural engineer, however, specializes in the analysis and design of structures that support or resist loads, such as buildings and bridges, ensuring their safety and stability.
A structural engineer typically charges based on the project’s complexity, the engineer’s experience, and the services required. Fees can be hourly, a fixed lump sum, or a percentage of the project’s construction cost. It’s important to discuss the fee structure upfront with your structural engineer to understand the expected costs.
No, a structural engineer is not the same as an architect. While architects focus on the design, aesthetics, and functionality of a building, a structural engineer ensures the design is structurally sound, safe, and compliant with building codes.
You should contact a structural engineer when you need expert advice on the structural integrity of a building, are planning a renovation that involves altering the structure, need a structural inspection, or are constructing a new building. Structural engineers ensure the safety and durability of the construction.
From a structural engineer, you can expect professional services such as structural inspections, design of new structures, analysis of existing structures, recommendations for structural repairs or modifications, and oversight during construction to ensure compliance with the design.
If you are in Seattle and involved in a construction project or need an assessment of a property’s structural integrity, hiring a structural engineer is advisable. They will provide the expertise needed to ensure the structure is safe, functional, and compliant with local building codes.
A structural engineer analyzes, designs, plans, and researches structural components and systems to achieve design goals and ensure the safety and comfort of users or occupants. Their work includes calculating loads, stress, and the strength of different materials and components to design structurally sound and efficient buildings and structures.
About Us
Our History in Seattle
Founded over a decade ago, our firm has grown to become a leading structural engineering provider in Seattle, WA. With deep roots in the community, we specialize in designing and executing structural solutions that meet the unique challenges of the Pacific Northwest. Our journey from a small startup to a trusted local industry leader reflects our commitment to innovation, quality, and customer satisfaction.


Specialized Services
We offer a wide range of structural engineering services tailored to the needs of the Seattle market, including:
- Residential New Construction: Designing modern, safe, and efficient structures for new homes, factoring in the local climate and geological conditions.
- Remodel and Renovation: Providing expert engineering solutions for home renovations and extensions, ensuring the structural integrity of existing buildings while accommodating new design elements.
- Foundation Repair and Retrofitting: Specializing in foundation assessment and repair, we address common issues like soil instability and seismic retrofitting to ensure the safety and longevity of buildings in Seattle.
Customer Testimonials
EXCELLENT Based on 35 reviews Posted on Andrew DavisTrustindex verifies that the original source of the review is Google. ZT was super knowledgeable, professional, and easy to work with. Highly recommend!Posted on Raffaela OelerTrustindex verifies that the original source of the review is Google. I highly recommend ZT Yang and his team for any surveying needs. I recently worked with him on a complex project that required a high degree of precision and expertise. The project was completed quickly and delivered on time, exceeding our expectations for speed without compromising quality. ZT was meticulous in his work, ensuring all data was accurate and comprehensive. He was also highly supportive throughout the entire process, patiently accommodating multiple rounds of reviews and revisions to address all of our concerns and project requirements. His professionalism, responsiveness, and commitment to client satisfaction make him a top-tier choice for any surveying job.Posted on ephrem hailuTrustindex verifies that the original source of the review is Google. If you hire them you are in right place Professionals ✅ On time ✅ Fast ✅ Honest ✅ The same day service includes weekend ✅ Overall I got more that ***** servicePosted on Ross HartleyTrustindex verifies that the original source of the review is Google. Quickly identified our issue, proposed an interim solution that was effective and cheap, and helped identify a long-term structural improvement!Posted on Mitch ShaoTrustindex verifies that the original source of the review is Google. I had a great experience working with Yang. He quickly understood the issues with my foundation, created a detailed repair plan, and completed everything on a tight schedule. He was professional, responsive, and prioritized my project when I needed it most. Highly recommend his services!Posted on M. GheenTrustindex verifies that the original source of the review is Google. ZT Yang at Puget Sound Engineering was very, very helpful. Professional, on time, helped explain ways we could monitor any potential settling of our home. I VERY STRONGLY recommend getting measurements and observations from several **independent** structural engineers with no conflicts of interest before committing to any business selling you structural stabilization services.Posted on Gar MunTrustindex verifies that the original source of the review is Google. ZT was excellent in providing thoughtful assessment and recommendations about a roof and attic structure of an old home. He answered a lot of questions objectively and professionally. I would utilize ZT’s services again in the future as needed.Posted on Will ReingoldTrustindex verifies that the original source of the review is Google. ZT was great and very helpful. I felt I was in great hands with him.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Latest Articles
Service Areas across Greater Seattle
- Seattle
- Bellevue
- Redmond
- Kirkland
- Renton
- Shoreline
- Bothell
- Everett
- Lynnwood
- Edmonds
- Marysville
- Mukilteo
- Tacoma
- Puyallup
- Lakewood
- University Place
- Gig Harbor
- Bainbridge Island
- Kenmore
- Burien
- Des Moines
- Duvall
- Issaquah
- Maple Valley
- Mercer Island
- Mill Creek
- Monroe
- Mountlake Terrace
- New Castle
- Sammamish
- SeaTac
- Snoqualmie
- Tukwila
- Woodinville
- Auburn
- Federal Way
- Sumner
- Bonney Lake
Seattle Residential Structural Engineering — New Builds, Remodels, Inpection & Foundation Repair
Based in Queen Anne and serving all of Seattle, our licensed structural engineers design permit-ready plans for single-family homes and DADUs, size beams and headers for remodels, and provide foundation repair engineering (helical/push piles, underpinning, tiebacks, and seismic upgrades). We deliver clear calculations, fast turnarounds, and practical details your contractor can build from.
Address
18 Dravus St
Seattle, WA 98109
Email Us
info@pugetsoundengineering.com
Call Us
510-849-7156






