Turbin Design Associates, Inc.

4.82 |25 Verified Ratings
Write a Review

Turbin Design Associates, Inc.

4.82 | 25 Verified Ratings
Write a Review


655 Redwood Highway, Suite 332
Mill Valley, CA 94965
Your use of our services is governed by our Terms & Conditions

Turbin Design Associates, Inc.

A Precise & Impartial Approach

Among TDA's specialized services, the most highly in demand due to the recent events in Japan, are the seismic vulnerability assessments with cost-sensitive remediation, and the seismic upgrades of residential and commercial structures. Bay Area residents and businesses alike are looking for structural peace of mind which Turbin Design Associates strives to provide. TDA's broad and growing client base ranges from homeowners and real estate agents to commercial corporations. A pervading attitude of diligence and attention to detail is reflected in every aspect of each project. Dedication to providing the client with the best possible product regardless of budget is the underlying philosophy of Kelly Turbin and each member of the TDA team.


Learn how HomeAdvisor screens and approves their pros.

Service Area

  • San Francisco
  • Oakland
  • Berkeley
  • Richmond
  • Hayward
  • Concord
  • Santa Rosa
  • Palo Alto
  • Mountain View
  • Petaluma
  • Redwood City
  • Piedmont
  • Novato
  • Vallejo
  • San Rafael
  • San Mateo
  • Walnut Creek
  • Daly City
  • Cotati
  • Menlo Park
  • Napa
  • Moraga
  • San Pablo
  • San Leandro
  • San Anselmo
  • Rohnert Park
  • Los Altos
  • Albany
  • Mill Valley
  • Alameda
  • Fremont
  • San Ramon
  • Fairfax
  • Sebastopol
  • El Sobrante
  • Castro Valley
  • Larkspur
  • Corte Madera
  • Rodeo
  • American Canyon
  • Stanford
  • San Quentin
  • Burlingame
  • Kenwood
  • Sausalito
  • Danville
  • Greenbrae
  • Angwin
  • Emeryville
  • South San Francisco
  • Inverness
  • Diablo
  • Camp Meeker
  • Occidental
  • Vineburg
  • Montara
  • El Cerrito
  • Cazadero
  • Graton
  • Sonoma
  • Pope Valley
  • Cloverdale
  • Nicasio
  • Brisbane
  • Port Costa
  • San Carlos
  • Canyon
  • Saint Helena
  • Forest Knolls
  • Orinda
  • Rutherford
  • Pacifica
  • Dillon Beach
  • Eldridge
  • Healdsburg
  • Stewarts Point
  • Portola Valley
  • Union City
  • Lagunitas
  • Bodega
  • Duncans Mills
  • El Granada
  • El Verano
  • Villa Grande
  • Stinson Beach
  • Guerneville
  • Rio Nido
  • Bolinas
  • Moss Beach
  • Forestville
  • Jenner
  • Tomales
  • Woodacre
  • Olema
  • Belvedere Tiburon
  • Lafayette
  • Calistoga
  • Crockett
  • Hercules
  • Bodega Bay
  • See All >

Services Offered

Architects & Engineers
Disaster Recovery Services

Areas of Expertise

  • Structural Engineering
  • Seismic Upgrades & retrofits of Residential, Commercial, and Historical Structures
  • Residential & Commercial Design & Additions
  • Structural Inspections and Foundation Repair
  • Retaining Wall Analysis & Repair

Product Brands Used

  • Autocad 2012 Structural Detailing

Quick Facts

Business Hours
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
9:00 AM to 5:00 PM
(Please call to confirm)
  • Free Estimates
  • Credit Cards Accepted


In Business Since: 2005
Memberships & Affiliations
  • American Institute of Architects (AIA)
  • American Society of Civil Engineers (ASCE)
State Licensing
Trade: Civil Engineer
License #: 73175
Expiration: 12-31-2020
Green Certifications
  • Builditgreen.org - Certified Green Building Professional
  • LEED Certification for Individuals: LEED Accredited Professional (LEEDAP)
  • 2010 Best of Marin County
HomeAdvisor Screened. View Details

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HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.

Business Overview

Community Involvement

Founder of Get Ready Bay Area Retrofit Program for Low Income Prop. Owners

How We Got Started

I chose to work in this industry because I am fascinated by Construction and have a natural apptitude for math.

I love working in Marin County because I was born and raised in Greenbrae.

We started in this industry in 1998.

We describe our business as Well established


Turbin Design Associates, Inc.

My Work
1 Projects
Free Offer! Get an initial site consultaion free when new customers inquiry about a new project. Free Offer!
Free Offer! Get a Site Consultation with our Principal Engineer free when Inquiring about a new project Free Offer!
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Ratings & Reviews
Turbin Design Associates, Inc.

Real feedback from real homeowners.
Learn more about this pro by reading the ratings and reviews below.
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Showing 1-10 of 25
  Page 1 of 3
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5.0   |  
Kelly was very timely and responsive in both scheduling an appointment and following up with a report. His on-site assessment was thorough and specific, knowledgable recommendations were made to address the issue. This was an outstanding experience.
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5.0   |  
Terrific communication, very knowledgable, services rendered at an extremely fair rate, and easy to work with..
Response by Turbin Design Associates, Inc.: Thanks Peter, it was a pleasure working with you as well
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5.0   |  
We engaged with TDA to review our property. We had noticed some slightly sloped floors on the top level and wanted to understand the causes and remediation options. They were timely, thorough, and amazingly, performed the assessment for free. When we move forward with other projects down the line, we'll definitely reach out to TDA.
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5.0   |  
Kelly was very professional, knowledgeable, thorough, and overall great costumer service. Kelly takes the time to patiently explain the cause of your issue and different options you can use to correct the problem. I would recommend him to anyone I knew who needed a structural Engineer.
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4.5   |  
Very happy with our proposal and looking forward to hiring them when we get ready to do the work.
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5.0   |  
We could not ask for more expertise or better service than that which we received from Kelly Turbin of TDA Structural. We were faced with a serious, and unexpected, problem in our home and we had no idea what to do about it. Kelly was understanding, patient and professional. He answered our questions -- we had many -- and gave us the guidance we needed. This has been an ordeal for us, but Kelly made it much easier to manage. He has our highest recommendation.
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4.33   |  
Kelly was quite easy to work with and eager to help on our project. Also, his flexibility was key to getting the job done.
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4.33   |  
No Comment
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5.0   |  
Great Work
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5.0   |  
Called us immediately and came out to our project first thing in the morning. I told him that my wife was up worrying all night because there were lout popping noises in our roof and she wanted to move out to a hotel. He did a thorough inspection and explained what the noises were from and why they were common this time of year, especially in older homes. I tried to pay him but he refused, quite a gentleman, you do not find those kind of people around anymore. I would gladly hire these guys for ANY project I do in the future. Do not go anywhere else for a Structural Engineer....
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Showing 1-10 of 25
  Page 1 of 3

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
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