Get matched with top structural engineers in Seatac, WA

Seatac homeowners rate structural engineers in our network

4.2

(24 reviews)

Top-rated structural engineers.

Need a pro for your structural engineering project in Seatac, WA?

Select your specific project to find the pro for you.

Find Structural engineers in Seatac

Avatar for Consulting Structural Engineering Services, Inc. (CSES)
Consulting Structural Engineering Services, Inc. (CSES)
4.1(
86
)

Serving Seatac, WA and surrounding areas

Approved

In business since 1992

Free estimates

Small jobs welcome

"John came out and looked at several issues, determined them to be cosmetic not structural and wrote a certified letter to that effect. We got great peace of mind from his visit."
 broken deck
 Structural assessment
  Structural assessment
  Structural assessment
  Structural assessment

+8

Response time1 day
45 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for McCann Structural Solutions
McCann Structural Solutions
4.8(
5
)

Serving Seatac, WA and surrounding areas

Approved

In business since 1986

Emergency services offered

Small jobs welcome

"Mr. McCann came out to assess the water and carpenter ant damage to a wall and foundation sill plate of our home. He was able to quickly evaluate the problem area and provide the structural engineering report and repair task list we needed to get contractor bids on the reconstruction project. Highly recommended."
Wall Removal Investigations
Snohomish Barn
Fire Damage repair
Structural Column Removal
Structural Column Removal

+7

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DesignWorks NW
DesignWorks NW
4.7(
12
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"We hired Char to help us design an addition to our home in Burien, WA. Our addition adds a 300 sq. ft master suite to our 1100 sq. ft house. Char built our trust quickly. She listened carefully to our concerns, and used her own creativity to make huge improvements to our original plans. Our project wouldn’t have looked the same without her input. Char incorporated very specific requests from us concerning noise reduction, and went above and beyond to research many solutions for us to choose from. Char communicated her schedule clearly, we always knew exactly what she was working on, her deliverables, and what we would discuss in our next meeting. We never had a meeting that wasn’t useful. Char helped us navigate the Burien permit process, making sure the drawing package was complete enough to pass the first time. She reached out to specific city officials ahead of time to anticipate any issues before permit submittal. Char created very detailed drawings and has exceptional drafting skills. She added more detail than required at every stage of the design to help us make critical decisions earlier in the process. Our hired GC complimented Char’s drawing package when we put it out for bid, saying it was better than many that he’s seen. We also hired Char to meet with contractors and review estimates. She was able to help us navigate what was a reasonable price and weed out any weird or misleading estimates. In summary, Char has been a fantastic resource for us and has helped make our first major home improvement project much less daunting."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Elevation Home Designs, LLC
Elevation Home Designs, LLC
4.9(
18
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2012

Free estimates

Small jobs welcome

"Ward Engineering began working with Jared of Cornerstone Home Designs approximately 3 years ago to perform residential design work using Chief Architect design software. I find Jared to be the most capable Chief Architect designer I have ever worked with. Jared is very efficient and thorough at developing the residential Chief Architect models. In addition to being competent, Jared makes himself available to provide personal 1-on-1 training over the internet, which has been a huge blessing to our company and clients."
Bedroom hallway
New Living room with double sliding doors
Kitchen, Family, and Dining
Laundry Room
Shulz remodel/addition

+53

Response time4 days
23 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Refine Design Architecture
Refine Design Architecture
5.0(
8
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Refine Design is a residential architecture firm specializing in custom homes, additions, and major renovations throughout the Seattle, Bellevue, Redmond, and Snohomish areas. We believe great homes begin with understanding the people who live in them. Our collaborative process keeps homeowners involved from the earliest concepts through permitting and construction-ready plans.\n\nEvery project is shaped by the client's lifestyle, goals, budget, and the unique opportunities of the site. We focus on creating meaningful spaces that capture views, bring people together, and enhance daily living. Through thoughtful planning and design, we help clients maximize the value of their investment while creating architecture that feels timeless, functional, and uniquely their own.

Exterior Perspective
Exterior Perspective
Floor Plan
Exterior Perspective
Entry Perspective

+56

Response time2 days
8 neighbors recently requested a quote
Recommended by14%of homeowners
Avatar for BT Engineers LLC
BT Engineers LLC
5.0(
3
)

Serving Seatac, WA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"BT Engineers LLC did the tenant improvement design for our new space, and they did an amazing job. Our permits were approved very quickly. They were responsive and helpful throughout the whole process! I would highly recommend them!"
Elevation
Structural Plan
V Elevation
Tree Strike
Response time7 hrs
Response rate100%
4 neighbors recently requested a quote
...
Showing 1-10 of 122
Structural Engineering questions, answered by experts

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

Through proper drainage solutions and compacting the foundation soil.

Precast concrete can be reinforced with rebar, wire mesh, or other materials to improve its strength and add stability. Precast concrete for large construction projects is often pre-stressed as well for greater structural strength. Reinforced concrete is durable and strong, making it an ideal choice for many construction projects.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

If your home's foundation was damaged due to shifting soil, the same problem will reoccur unless you stabilize the structure by adding posts in the bedrock.

The Seatac, WA homeowners’ guide to structural engineering services

From average costs to expert advice, get all the answers you need to get your job done.