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TRUSTED BY OAK PARK, CA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon43
    Verified structural engineering services reviews

Top-Rated Structural engineers in Oak Park - Updated Nov 2026

Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)
Engineer - Structural

Serving Oak Park, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Erinn was my initial contact and he gave a very through and fair estimate. We had structural work done to support floor joists and large beams under the garage that needed replacing. Ernesto and his team, Julio, Salvatore and Gilder worked tirelessly to complete the work and were respectful, punctual, informative and good humoured throughout the entire process. I would not hesitate to use them again or recommend them to others. A really great company!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+323

Response time10 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
4.8(
12
)
Draftsperson/CADDArchitect

Serving Oak Park, CA and surrounding areas

Approved

In business since 1976

Warranties offered

Credit card accepted

"The work Erdelyi associates did is great, but communication and timeliness were lacking. I didn’t have a consistent point of contact throughout the project - it just seems my project was handed off from one person to the next with no continuity and I had to proactively reach out for updates."
Beverly Hills
Pacific Palisades
Culver City
1 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Harsini, Inc.
Harsini, Inc.
5.0(
7
)
Engineer - Structural

Serving Oak Park, CA and surrounding areas

Approved

In business since 2019

Offers commercial services

Customers say: Quick response

"Very knowledgeable. Iâ ve dealt with a lot of Structural Engineers. His ability to relate complex situations into easy to understand explanations clearly shows how knowledgeable he is. His background in construction adds a constructability component that is unmatched. Highly recommended. ."
Response time4 hrs
Response rate91%
Recommended by100%of homeowners
Avatar for Pac Sands Corp
Pac Sands Corp
5.0(
7
)
ArchitectDraftsperson/CADD

Serving Oak Park, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"We did a full remodel of our place, full new kitchen, and expanded our place into the backyard for a new master suite. Pac Sands did a really great job with our designs. Great tools that made the communication easy with the plans and changes we needed. And they handled the engineering and permitting too, which was great. Highly recommend."
6-Plex Aerial view
6-Plex Render
Carlsbad 6-Plex Axo
Response time2 days
173 neighbors recently requested a quote
Avatar for Standley Structural Design
Standley Structural Design
5.0(
1
)
Engineer - StructuralArchitectArchitect - For Business+1 more

Serving Oak Park, CA and surrounding areas

Approved

In business since 2014

We are a Los Angeles based structural design team of qualified and licensed Civil Engineers. We can assist you in effective assessment and design whether your home is in need of repairs, you are looking to renovate or build an addition, or you are looking to build a new home from scratch. We serve the entire state of California. We have years of experience working directly with contractors, and know that the most important thing we can do is design efficient, easy to construct systems, and get them back to you in a workable amount of time. We pride ourselves in thorough and effective designs returned to you in time so as not to delay your projects. We have aided in the design and safe implementation of thousands of residential and commercial solar (photovoltaic) electrical systems, and are proud to be doing our part for cleaner air, and a healthier earth. If you are a solar contractor, we can help you too!

2 neighbors recently requested a quote
AAA Engineering Design
4.1(
9
)
Engineer - Structural

Serving Oak Park, CA and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"I had the pleasure of working with Aws on a recent project and was thoroughly impressed by his professionalism and efficiency. He delivered a clean, straightforward structural design that met all the necessary requirements without unnecessary complexity. Aws was fast, reliable, and highly communicative throughout the process, making coordination smooth and strass-free. On top of that, the pricing was very reasonable. I highly recommend Aws and his firm for any structural engineering needs. They offer a great combination of expertise, responsiveness, and value."
Foundation Plan
Roof Framing Plan
Response time3 hrs
Recommended by66%of homeowners
CCD - Engineering and Design
3.4(
18
)
Engineer - Structural

Serving Oak Park, CA and surrounding areas

Approved

In business since 1986

Free estimates

Offers commercial services

"I hired CCD to help me permit a structure that I built (Rooftop Deck) and then had a neighbor complain about, leading to lots of trouble and compliance issues. After getting some quotes (that were often 2-3 times what I ended up paying) I found CCD. Mike told me they have never failed to permit a single unpermitted structure... and 12 months later mine is another one of their success stories. I had them draw up the plans and the city approved his blueprints without a single correction which I understand is rare in Santa Monica. I am very satisfied with everything CCD did for me & would not hesitate to hire them again."
Response time2 days
6 neighbors recently requested a quote
Recommended by71%of homeowners
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Showing 1-10 of 237
Structural Engineering FAQs, answered by experts

Through detailed analysis of load paths, materials, and existing damages.

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

The primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.

Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.

The 10 10 rule describes the formula most contractors use to determine how much to charge for a job. Allowing for 10% overhead above the total projected cost to do the work and 10% profit sets a contractor up for success, even if there are delays or other problems on the project. This formula isn’t a hard-and-fast rule, but it is a ballpark figure to begin with when estimating your expenses on a job.

The Oak Park, CA homeowners’ guide to structural engineering services

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