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Find Engineer structural pros in Seattle

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

Serving Seattle, 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
42 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for McCann Structural Solutions
McCann Structural Solutions
4.8(
5
)

Serving Seattle, 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
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for BT Engineers LLC
BT Engineers LLC
5.0(
3
)

Serving Seattle, 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
Washington Engineering
3.4(
37
)

Serving Seattle, WA and surrounding areas

Approved

In business since 2007

Small jobs welcome

Credit card accepted

"I had the pleasure of working with Bryson on a recent project, and I couldn’t be more impressed with their work. From start to finish, Bryson demonstrated extensive knowledge and expertise in structural engineering. They took the time to understand the project’s unique needs and provided clear, practical solutions that ensured everything was both safe and efficient. One of the standout qualities was their excellent communication. They kept me informed at every stage, answering questions promptly and offering advice when needed. Even when challenges arose, Bryson approached them with professionalism and a problem-solving mindset, ensuring that the project stayed on track. The quality of the work was exceptional. Every detail was carefully considered, and I felt confident in the structural integrity of the design. Bryson truly went above and beyond, offering both technical skill and a genuine commitment to the project’s success. Thank you and I look forward to working with you again."
Response time2 days
29 neighbors recently requested a quote
Recommended by23%of homeowners
Avatar for GS Engineering, PLLC
GS Engineering, PLLC
5.0(
2
)

Serving Seattle, WA and surrounding areas

In business since 2016

Credit card accepted

Offers commercial services

"GS engineering, and Sim Singh in particular have been fantastic to work with. I am a general contractor and have had to hire a number of structural firms over time. Sim offers a very rare combination of a high level of skill in a highly technical field (specifically engineering) a high level of professionalism, and an overall pleasant personality/demeanor. As long as he has the time to take my calls, it is doubtful that I would ever call a different structural engineer than Sim."
Response time2 days
Recommended by100%of homeowners
Avatar for Surelock Homes Inspection Co.
Surelock Homes Inspection Co.
4.9(
255
)

Serving Seattle, WA and surrounding areas

In business since 1996

Free estimates

Emergency services offered

"Before buying I needed a specialist to look deeper into a potential issue, Greg was very knowledgable, friends and as it turns out just the guy for the job. He exposed all the issues and made my choice of not buying a house an easy one. Great to work with, has pest and structural qualification and was very reasonable. I'd highly recommend him and will be calling him again soon when I find another house."
ANYONE HOME?
WHY AREN'T MY CLOTHES DRYING?
FITTINGS INSTALLED BACKWARDS
GUTTER OR GARDEN?
HOPE IT WILL FLOAT

+35

Recommended by96%of homeowners
Avatar for Criterium - Pioli - Rowe Engineers
Criterium - Pioli - Rowe Engineers
5.0(
16
)

Serving Seattle, WA and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"Criterium came in after the original structural engineer blew it on this job. Roland really saved the day, working with our contractor to fill out all the missing items in the plans."
Response time2 days
Response rate93%
Recommended by60%of homeowners
Showing 1-10 of 28
FAQs for engineer structural projects in Seattle, WA

You should replace floor joists as soon as you see clear signs of structural trouble—sagging floors, wide wall cracks, uneven door frames, wet or rotting wood, persistent squeaks, or windows that no longer latch. Tilted or sinking supports in the crawl space are another red flag. If you notice any of these signs, call a pro right away to keep your home’s structure safe.

If the joists are exposed from below, a pro can swap them out without touching the finished floor above. In an unfinished basement or crawl space, you’ll often see the joists and can easily reach them. When insulation, subflooring, or finished flooring blocks access, the crew must remove these materials before repairs can begin.

Sistering allows a pro to reinforce a cracked or undersized joist without tearing up the entire floor. The contractor slowly raises the frame, then fastens a new joist snugly against the damaged one to share the load. When done correctly, sistering restores full structural strength and keeps the floor level without the cost of a complete replacement.

Floor joists installed correctly in a stable environment can last for 100 years or more, often outlasting the house itself. However, termite damage, moisture, leaks, and other problems can significantly reduce a floor's lifespan. For instance, if the floor is exposed to consistent moisture, you'll likely need to replace the joists every 20 to 30 years.

Homeowners' insurance covers floor joist damage resulting from sudden and accidental events, such as fire, windstorm, or water damage from a burst pipe. It will not cover repairs resulting from gradual deterioration, poor maintenance, or termite infestations. Review your insurance policy and consult your provider to verify the conditions that guarantee full coverage. Doing so ensures you are fully aware of your responsibilities and can plan your repair work with complete confidence.

Floor joists are essential structural components that provide a stable foundation for your home. They directly transfer the weight of floors, furniture, and occupants to the foundation, ensuring stability and a safe living environment. Without these robust beams, the structure would face compromised load distribution, leading to potential safety hazards and costly repairs. Proper installation and maintenance are crucial for long-term durability and safety.

The Seattle, WA homeowners’ guide to engineer structurals

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