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TRUSTED BY KELSO, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon38
    Verified structural engineering services reviews

Find Structural engineers in Kelso

Tim Wilkinson-Engineering

5.00(
3
)
Approved Pro

Tim Wilkinson-Engineering

5.00(
3
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 local quotes requested

Wilkinson Engineering, LLC is a Consulting Engineering firm based in Portland, Oregon offering services in the field of structural engineering including complex design, owner representation, value engineering, feasibility studies, investigations, finite element analysis, peer review and forensic analysis for commercial and residential clients. Our firm also offers unique design services in the areas of renovation/rehabilitation, preservation of historical structures, due diligence reports, seismic evaluations and other special projects including LEED Platinum and ecoroofs. Our mission is to provide superior professional services and we deliver by ensuring each project receives continuous personal attention. Our commitment to delivering sound, creative engineering conveyed through clear concise documents within budget and on schedule is assured through the Principal's involvement in every project to ensure timely and competent direction.

"excellent service"

Ray D on February 2021

Wilkinson Engineering, LLC is a Consulting Engineering firm based in Portland, Oregon offering services in the field of structural engineering including complex design, owner representation, value engineering, feasibility studies, investigations, finite element analysis, peer review and forensic analysis for commercial and residential clients. Our firm also offers unique design services in the areas of renovation/rehabilitation, preservation of historical structures, due diligence reports, seismic evaluations and other special projects including LEED Platinum and ecoroofs. Our mission is to provide superior professional services and we deliver by ensuring each project receives continuous personal attention. Our commitment to delivering sound, creative engineering conveyed through clear concise documents within budget and on schedule is assured through the Principal's involvement in every project to ensure timely and competent direction.

"excellent service"

Ray D on February 2021


Triple V Consultants & Associates

3.88(
16
)
Approved Pro

Triple V Consultants & Associates

3.88(
16
)
Approved Pro
46 local quotes requested
22 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Vic is awesome. He came by, was able to provide a quote and complete the work quickly at a fair price, despite encountering some unexpected problems. He also was very kind and listened to what we wanted. Will hire again."

Tyler H on November 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Vic is awesome. He came by, was able to provide a quote and complete the work quickly at a fair price, despite encountering some unexpected problems. He also was very kind and listened to what we wanted. Will hire again."

Tyler H on November 2025


Madden Fabrication

No reviews yet

Madden Fabrication

No reviews yet
Free onsite estimate

Madden Fabrication's capabilities encompass and exceptional range of work. Our experienced fabricators and designers skills have produced a wide array of projects. Our work runs the gamut from breathtaking one of a kind custom lighting to intricate interior railings and decorative gates to industrial valves and piping. Madden does it all, and we do it well.

Madden Fabrication's capabilities encompass and exceptional range of work. Our experienced fabricators and designers skills have produced a wide array of projects. Our work runs the gamut from breathtaking one of a kind custom lighting to intricate interior railings and decorative gates to industrial valves and piping. Madden does it all, and we do it well.


Cascadian Structural Engineering llc

No reviews yet

Cascadian Structural Engineering llc

No reviews yet
4 years of experience

Cascadian Structural Engineering LLC offers structural engineering design and evaluation services. We specialize in residential and light commercial projects including new construction, alterations/additions, and evaluation of existing structures. We work directly with architects, building owners, homeowners, developers, and contractors to provide practical project specific solutions. Our service area includes the Puget Sound region and beyond.

Cascadian Structural Engineering LLC offers structural engineering design and evaluation services. We specialize in residential and light commercial projects including new construction, alterations/additions, and evaluation of existing structures. We work directly with architects, building owners, homeowners, developers, and contractors to provide practical project specific solutions. Our service area includes the Puget Sound region and beyond.





GNC Construction

No reviews yet

GNC Construction

No reviews yet
Free onsite estimate

GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.

GNC Construction has a combined total of 40 plus years of experience. We specialize in residential and commercial building. Our staff is experienced in many different trades and we take pride in our craftsmanship and detail. With backgrounds in drywall, steel and wood framing GNC Construction has expanded out to numerous trades. We are certified in steel work, siding, all building trades, painting, plumbing, electrical.


Northbank Civil and Marine LLC

No reviews yet

Northbank Civil and Marine LLC

No reviews yet
11 years of experience

Northbank Civil and Marine serves Oregon, Washington, Idaho, California and Montana with high quality marine, heavy civil and industrial construction services. Our team of experienced industry veterans has the expertise to tackle some of the most technically challenging projects. We primarily focus on government related jobs throughout the US as well as bid/build, CM/GC, and design build projects.

Northbank Civil and Marine serves Oregon, Washington, Idaho, California and Montana with high quality marine, heavy civil and industrial construction services. Our team of experienced industry veterans has the expertise to tackle some of the most technically challenging projects. We primarily focus on government related jobs throughout the US as well as bid/build, CM/GC, and design build projects.


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Structural Engineering questions, answered by experts

Yes, all states require structural engineers to carry the proper license, with specifics determined by each state. You can use Angi’s state licensing tool to confirm that the structural engineer you’re considering holds the required licensing to tackle your job. Hiring an unlicensed structural engineer will not only cause issues with permits but it could also lead to an unsafe building. The cost of a professional, licensed, and experienced engineer is well worth the investment.

Structural engineers typically conduct inspections during a home sale or renovation, looking for signs of structural damage in various structures throughout the building, such as load-bearing walls, joists, beams, roofing trusses, foundations, and chimneys. Some of the warning signs that structural engineers check for include:

  • Dry rot

  • Infestation

  • Shifting or cracking foundations

  • Erosion

  • Water damage

  • Sagging, shifting, or damaged walls, ceilings, or roofing support

Building codes for spiral staircases will vary by your location. Most local codes will specify minimum tread width, riser height, handrail requirements, and headroom. These standards help ensure safety and accessibility for all users. Always check local codes before you begin the installation to ensure compliance and avoid costly modifications or fines.

Proper licensing and experience in residential and commercial structural projects.

Costs depend on material choices, labor, and the extent of structural modifications.

The Kelso, WA homeowners’ guide to structural engineering services

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