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TRUSTED BY MERCER ISLAND, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon46
    Verified structural engineering services reviews

Find Structural engineers in Mercer Island

Avatar for Engineered Structures Global Design, PLLC
Engineered Structures Global Design, PLLC
4.6(
11
)
Engineer - Structural

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2006

Customers say: Quick response

"ESG Design was great to work with. I contacted them through Home Advisor for an impartial assessment of the cause of cracks in my ceiling, plus a few other issues. Eli, the engineer, did a thorough inspection and developed a solid plan for repairs. ESG also offered two levels of fees, which was extremely helpful for my budget. Thank you ESG for the service and peace of mind!"
Finished
Finished
Vaulted hallway ceiling
Construction
Vaulted roof beam

+17

Response time4 days
Recommended by100%of homeowners
Avatar for Johnson Custom Builders
Johnson Custom Builders
4.9(
102
)
Draftsperson/CADDArchitect

Serving Mercer Island, WA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"It was a pleasure working with Johnson Custom Builders. Ryan was very professional, honest, and transparent. He studied the plans and specifications crafted by my architect in great depth and provided a detailed cost estimate. He also took the time to walk me through how the custom house build process will work and the expectations I should have. Overall a great experience for me working with Ryan."
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - General Project
Remodeling - Kitchen & Bathroom Project
Remodeling - Kitchen & Bathroom Project

+75

Response time11 hrs
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for McCann Structural Solutions
McCann Structural Solutions
4.8(
5
)
Engineer - Structural

Serving Mercer Island, WA and surrounding areas

Approved

In business since 1986

Emergency services offered

Small jobs welcome

"I've been fortunate to work with him for 20 years.He is an extremely qualified structural engineer and a competent individual! You can trust Mike to do a great job!!!"
Wall Removal Investigations
Snohomish Barn
Fire Damage repair
Structural Column Removal
Structural Column Removal

+7

Response time1 day
23 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DesignWorks NW
DesignWorks NW
4.7(
12
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2000

Free estimates

Warranties offered

"The process working with Char to develop a set of design plans for my master suite addition has been fantastic. She has worked with me step by step, explaining the process at each point and what I can expect. She also listened to what I was looking for, drew up various designs, and then worked with me on modifications. She was a partner in the process the entire time, not only treating me with respect and professionalism, but talking through options and pros and cons with me so I ended up with the design I really wanted. Throughout the entire process I felt like I was in good and trustworthy hands. So much so that I will continue to use Char's assistance as I move forward on next steps with this project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Recommended by90%of homeowners
Avatar for Revival Architecture and Design, LLC
Revival Architecture and Design, LLC
5.0(
10
)
ArchitectArchitect - For Business

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2018

Credit card accepted

Offers commercial services

"Josh has always been prompt and communicative with every interaction we've had. I initially got in touch with him about new construction design questions, and when we discovered that our current home porch posts had rotted through due to faulty design by the original home designer, Josh jumped into action. He had his engineer and construction crew to our door within 24 hours to take a look and put together a plan. He took my design ideas and brought them to life. He was transparent about all parts of the cost (to include his profit), and gave us to option to lower the cost by hauling away debris and painting the porch (which we were more than willing to do). Any delays with the work were met with a phone call and followup email if he didn't get through to either my husband or I immediately, and the construction crew did very high quality work. We were beyond pleased with his customer service! We will definitely use Revival Home Designs in the future when we decide to build our forever home."
Apartments - Chehalis, WA
Front
Rear
Cashmere Mixed Use
Exterior Option 2 Alternate Design

+1

Response time2 days
13 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for BT Engineers LLC
BT Engineers LLC
5.0(
3
)
Engineer - StructuralDraftsperson/CADD

Serving Mercer Island, 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%
7 neighbors recently requested a quote
Avatar for Outdraft, LLC
Outdraft, LLC
5.0(
4
)
Draftsperson/CADDEngineer - Structural

Serving Mercer Island, WA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"We hired OutDraft to design a set of plans for us for a deck project. OutDraft did a fantastic job! The plans were professionally drawn and passed through the city without any issues."
Response time10 hrs
Response rate100%
10 neighbors recently requested a quote
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Structural Engineering questions, answered by experts

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.

A few hours for inspection, with a detailed report following in a week.

Yes, you can build over a stump if the roots are no longer alive. Living roots will continue to grow and may damage your new construction over time. Similarly, you should also remove rotting stumps because they may continue to attract pests and even cause new structures (especially those made from wood) to decompose as well.

The National Association of Home Builders requires repair of any foundation crack of more than one quarter of an inch, although local regulations may vary. In general, any visible crack that is growing in size, allowing water through, or that you have just noticed, is a good reason to call a structural engineer. Cracks can be a sign of a sinking foundation, so an inspection is a good idea for your peace of mind.

Costs depend on unit complexity, labor, wall mounting needs, and additional accessories like floating shelves.

The Mercer Island, WA homeowners’ guide to structural engineering services

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