Dow Engineering PLLC
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  • Structural Engineering
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  • Wall Removal Beams
  • Additions Remodels
  • ADUs and DADUs
  • New Custom Homes
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  • Need a PE Stamp
Civil
  • Civil Engineering
  • Stormwater and LID
  • Erosion Control
  • Home Site Plans
  • Drainage and Grading
  • Utility Design
Dow Engineering PLLC
Home
Book Appointment
Contact Us
F.A.Q.
Forensic
  • Forensic Engineering
  • Code Violation Notices
  • Litigation Support
  • Structural Expert Witness
Structural
  • Structural Engineering
  • Site Visits
  • Wall Removal Beams
  • Additions Remodels
  • ADUs and DADUs
  • New Custom Homes
  • Foundations
  • Need a PE Stamp
Civil
  • Civil Engineering
  • Stormwater and LID
  • Erosion Control
  • Home Site Plans
  • Drainage and Grading
  • Utility Design
More
  • Home
  • Book Appointment
  • Contact Us
  • F.A.Q.
  • Forensic
    • Forensic Engineering
    • Code Violation Notices
    • Litigation Support
    • Structural Expert Witness
  • Structural
    • Structural Engineering
    • Site Visits
    • Wall Removal Beams
    • Additions Remodels
    • ADUs and DADUs
    • New Custom Homes
    • Foundations
    • Need a PE Stamp
  • Civil
    • Civil Engineering
    • Stormwater and LID
    • Erosion Control
    • Home Site Plans
    • Drainage and Grading
    • Utility Design

  • Home
  • Book Appointment
  • Contact Us
  • F.A.Q.
  • Forensic
    • Forensic Engineering
    • Code Violation Notices
    • Litigation Support
    • Structural Expert Witness
  • Structural
    • Structural Engineering
    • Site Visits
    • Wall Removal Beams
    • Additions Remodels
    • ADUs and DADUs
    • New Custom Homes
    • Foundations
    • Need a PE Stamp
  • Civil
    • Civil Engineering
    • Stormwater and LID
    • Erosion Control
    • Home Site Plans
    • Drainage and Grading
    • Utility Design

Structural Expert Witness in Washington

Call (253) 319-3220

Expert Witness · PE · Licensed in WA

What we provide

Written expert opinions on what we looked at, what we found, what caused it and why. Rebuttal reports that answer the other side's expert. Deposition testimony and testimony at trial or arbitration.

Exhibits

Photos, marked-up plans and simple diagrams a jury or arbitrator can follow.

Areas we testify on

Wood-framed structure, foundations, decks, balconies and stairs, residential retaining walls, site drainage, and whether work matched the approved plans and the building code.

How we keep opinions solid

We base opinions on what we observed and documented, say how sure we are and what would change our mind, and keep notes, photos and calculations ready to produce. If a question needs a geotechnical engineer or architect, we say so.

Why the PE license matters

Courts, attorneys and building officials rely on stamped opinions from a licensed Washington engineer. This work sits with forensic engineering and disputes & litigation.

Fees and independence

Expert witness work runs under a short hourly agreement with a retainer. Our fee never depends on how the case comes out. A CV is available on request.

Evidence handling

Samples bagged and labeled

Material taken from the site is bagged, labeled and logged so it can be shown later.

Need an engineer on the record? Call.

Call (253) 319-3220, use Contact Us, book a consult, or email office@dowengineeringpllc.com. Send the parties' names first so we can check conflicts. Attorneys can call the same number. Expert witness work runs under a short hourly agreement.

Call (253) 319-3220
  • Need a PE Stamp
  • Structural Engr Sumner
  • Pre-Purchase Assessment
  • Bearing Wall Removal
  • Stamped Plans for Permit
  • ADU Structural Engineer
  • Foundation Engineering
  • Home Addition Engineer

Dow Engineering PLLC

16202 64th St E Ste 117, Sumner, WA 98390

(253) 319-3220 · office@dowengineeringpllc.com

Copyright © 2026 Dow Engineering PLLC - All Rights Reserved.

Our family: Build Sherpas, WA Blower Door, MI Elements. Same office in Sumner.

Part of the Dow Engineering family, Sumner, WA

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