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Approved Pro
Approved Pro

Engineer On Call

Engineer Structural,

About us

Engineer On Call is a sole ownership engineering design and consulting firm servicing three states with over 40 years of practical experience in the field of structural engineering. As the owner, it is my responsibility to give you trusted value in the design efforts I undertake on your project. As a one man shop with a high review rating I am very busy and may not be able to respond to your inquiries as promptly as I would like. All projects are important, I hope to get to yours next. Thank you for your efforts to reach me. Mark

Business highlights

Emergency services offered
13 years of experience

Services we offer

Complete Structural Documents for Permitting, Non-permitted structures, Registered Professional Engineer in OR, WA, CA, Site Assessments, Structural Engineering Design and Analysis

Amenities

Emergency Services

Yes

Reviews
4.958 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
91%
4
3%
3
2%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 58 reviews
Tim D.
Aug 2025
5.0
Engineer Structural
$400
Mark did a thorough analysis of what I was proposing to modify with the structure and gave me advice on how to proceed. His fee was very reasonable. I am satisfied with the job he did and would not hesitate to call him in the future.

Christopher L.
Jan 2024
5.0
Engineer Structural
Yes, I recommend this pro
Mark is super easy to work with and was very attentive to my needs on this project as well as cost effective.

Sandra K.
May 2023
5.0
Engineer Structural
Yes, I recommend this pro
Mark was very helpful and knowledgeable. He was able to come on short notice and gave us some good recommendations.

Christina M.
Jan 2022
5.0
Engineer Structural
Yes, I recommend this pro
$350
Mark was quick to come assess the project for us. He was there for 15 minutes and knew exactly what we needed.

Eddie D.
Oct 2021
5.0
Engineer Structural
Yes, I recommend this pro
$5,800
As owner/designer/builder, I hired Mark to validate the structural design of an atypical home on the Sandy River with challenging structural details. Mark also supported me during the building review process as part of his bid. The plans went through the county review first pass with no changes. After the start of construction, Mark advised on inspection issues and as built issues that came up allowing the project to move without delays. Even though he was on vacation, he responded to my requests during construction. The only improvement I would suggest is a bit more one on one collaboration early on to be on same page conceptually but with the pandemic and heavy client load in todays building environment, to be fare, that is a challenge for all engineers and my project was an oddity. I would use Mark again on a future house. He has integrity and that's number one.

George M.
Aug 2021
5.0
Engineer Structural
Yes, I recommend this pro
Marc knows what he is doing and was available on short notice. Highly recommended.

Meagan J.
Apr 2021
5.0
Engineer Structural
Yes, I recommend this pro
Mark was great! Fast response, on time, professional and highly knowledgeable about the structural issues in my home. I would definitely recommend him!

Joseph S.
Mar 2021
3.5
Engineer Structural
Yes, I recommend this pro
i just hired Him. i have not received plans yet but we are coordinating now.

Janet B.
Jan 2021
5.0
Engineer Structural
Yes, I recommend this pro
$350
I am delighted to offer this favorable review for Mark. When contacted, he promptly scheduled a site visit. Upon arrival, he thouroughly addressed each and every one of my concerns in a clear and straightforward manner and quickly followed up with a summary of his observations. With regard to his fee, one really cannot place a price on peace of mind. I personally found his fee to be more than fair given his knowledge, background and exceptional delivery of service. I would not hesitate to hire him again.

Penny P.
Aug 2020
5.0
Engineer Structural
Yes, I recommend this pro
Mark was very prompt and professional and I do not hesitate to recommend him.

Susan Q.
Jul 2020
5.0
Engineer Structural
Yes, I recommend this pro
$800
Quick response, easy to work with. Cost of service is much higher than HomeAdvisor.com average estimate. Got what we need to satisfy the permit requirement.

Barbara F.
Jun 2020
5.0
Engineer Structural
Yes, I recommend this pro
Very professional yet easy to talk to. He took time to explain to us what he was doing and what we should do.

Christopher G.
Jun 2020
5.0
Engineer Structural
Yes, I recommend this pro
I contracted Mark for stamped letter for a a structural permit. He was timely, professional, and knowledgeable. Highly recommended.

Ben Q.
May 2020
5.0
Engineer Structural
Yes, I recommend this pro
Mark was thorough and explain what caused the roof, walls and foundation to be problematic. The knowledge gained will now help decide which contractor is best suited to do the repair. Thank you Mark for the great advice and insight!

Yinqing Q.
Apr 2020
4.5
Engineer Structural
Yes, I recommend this pro
$350
I had a tight timeframe to complete a structural inspection on a house I'm closing, Mark was able to come out the next day. He walked around the perimeter of the house and told us what each beam, post, footing, crack, floor slant indicates, and gave us advice on how to fix them, approximately how much it will cost for a contractor to fix them. I strongly recommend him.

Tiffanie T.
Dec 2019
5.0
Engineer Structural
Yes, I recommend this pro
no comment provided

Maureen H.
Oct 2019
5.0
Engineer Structural
Yes, I recommend this pro
$350
Not cheap but invaluable in having a second opinion about an expensive structural repair.

Cindy P.
Oct 2019
5.0
Engineer Structural
Yes, I recommend this pro
$650
Excellent. Mark came out the same day I contacted him. He was very nice and gave us good feedback. Excellent value for the cost.

Peggy S.
May 2019
5.0
Engineer Structural
Yes, I recommend this pro
We needed a Structural Engineer quickly, Mark came out within hours of us contacting him. Within a week we had a permit for our job. I cannot say enough about Engineer On Call!! Would highly recommend Mark.

Cheryl W.
Apr 2019
5.0
Engineer Structural
Yes, I recommend this pro
$1,500
Mark was a real professional! We had to contact him one year out from his original professional services, and we were able to contact him quickly. He efficiently answered the contractor's questions, which allowed us to keep our project on track. We would hire him again in an instant!

Ramon T.
Mar 2019
3.0
Engineer Structural
Spent 45 mins to tell me it s a load bearing wall for 350 so it wasn t worth it. But still solve that it is a load bearing wall.

Felicia R.
Jan 2019
5.0
Engineer Structural
Yes, I recommend this pro
" He was responsive, quick and thorough"

Dan W.
Nov 2018
5.0
Engineer Structural
Yes, I recommend this pro

Jenifer V.
Sep 2018
5.0
Engineer Structural
Yes, I recommend this pro
Mark was quick to respond and transparent about the process & timeline. I will definitely use Jim again for future projects.

Robert W.
Aug 2018
5.0
Engineer Structural
Yes, I recommend this pro
Showing 1-25 of 58

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Engineer On Call is currently rated 4.9 overall out of 5.

Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day

No, Engineer On Call does not offer free project estimates.

No, Engineer On Call does not offer eco-friendly accreditations.

No, Engineer On Call does not offer a senior discount.

Yes, Engineer On Call offers emergency services.

No, Engineer On Call does not offer warranties.