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TRUSTED BY SIMI VALLEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon23
    Verified structural engineering services reviews

Find Structural engineers in Simi Valley

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

Serving Simi Valley, 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

+315

Response time10 hrs
Response rate96%
23 neighbors recently requested a quote
AK Structural Engineering Inc.
5.0(
10
)
Engineer - StructuralArchitect

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"AK engineering did an excellent job in structural design of our custom modern house. Amir is very professional and responsive and worked closely with our architect and us. He made himself available for job site visits and questions and his design was efficient and cost effective."
5 neighbors recently requested a quote
Avatar for PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
4.8(
12
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Simi Valley, 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
3 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for ESL Designs
ESL Designs
4.7(
33
)
ArchitectDraftsperson/CADD

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"Eran quickly responded to my inquiry regarding a load bearing structure of my home. He sent his structural engineer to determine if the structure was a load bearing problem. The engineer was able to determine 100% that it was not a load bearing structure. I would definitely recommend them to anyone who needs structural engineering solutions."
3D Design for a Remodel
New Build
Kitchen Remodel
Bedroom
Bedroom

+23

Response time1 day
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Harsini, Inc.
Harsini, Inc.
5.0(
7
)
Engineer - Structural

Serving Simi Valley, 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
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Pac Sands Corp
Pac Sands Corp
5.0(
7
)
Draftsperson/CADDArchitect

Serving Simi Valley, 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 time3 days
41 neighbors recently requested a quote
Avatar for Drafting Design Services
Drafting Design Services
4.8(
18
)
Draftsperson/CADD

Serving Simi Valley, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Credit card accepted

Offers commercial services

"Iâ  m so happy with my experience with him. He is very professional; knows very well what is being required of him; delivered his promise at the time he said heâ  ll be finished. Iâ  d be considering him definitely in any future project that may come up."
Response time2 days
7 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Standley Structural Design
Standley Structural Design
4.3(
6
)
Engineer - Structural

Serving Simi Valley, CA and surrounding areas

Approved

In business since 2014

Credit card accepted

Offers commercial services

"Nice guys who know their stuff. Showed up right on time and didn't rush, even though there was no true "solution" to the issue at hand. If you want civil engineers, I would go with Standley."
Response time1 day
22 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Saylor Design Studio
Saylor Design Studio
5.0(
5
)
ArchitectDraftsperson/CADD

Serving Simi Valley, CA and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

At Saylor Design Studio, I uphold a standard characterized by fairness, honesty, and accountability. My design approach involves working closely with clients to understand their unique needs, preferences, and lifestyle, ensuring that every design reflects their individuality. As a Custom Home Designer and a member of the American Institute of Building Design, I specialize in residential designs for additions, remodels, and new homes. I have over three decades of experience and have successfully designed over 700 projects. Additionally, I have an extensive background as a Set Designer and am a member of the Art Directors Guild and have completed over 70 film and television projects. My knowledge of construction methods, materials, and building codes allows me to provide accurate and detailed construction documents for contractors and consultants. This gives me a distinctive design perspective unmatched by others.

Custom Hillside Home - Front and Rear Elevations
Plans
Custom Hillside Home - Sections
Elevation
Framing Plans

+12

Response time8 hrs
Response rate92%
Recommended by100%of homeowners
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Structural Engineering questions, answered by experts

You should pick steel for your new support beam for a few reasons. While steel is more expensive than other materials, such as laminated veneer lumber or glulam, it offers the following benefits:

  • Fire-resistant

  • Unaffected by pests

  • Longer-lasting

  • Stronger against water damage (when galvanized against rust)

Yes. Foundation walls are always load-bearing.

No, beams are the primary load-bearers for flooring or roofing systems, and they distribute the weight of the structure to your foundational supports, while joists bear far less weight and distribute their loads to the beams. Beams are usually thicker and longer, and they have support posts or foundation walls beneath them for support.

Absolutely, as it ensures designs are viable and won’t compromise structural integrity.

No, squeaky floors do not always mean there is structural damage. The noise is often caused by friction from issues like loose floorboards, gaps between the subfloor and joists, or loose subflooring. While many squeaks are harmless, persistent or worsening noise could indicate a more severe problem. If you notice other signs of structural damage—such as soft or sagging floors, cracks running from the wall to the ceiling, or horizontal cracks in your foundation—it's best to have a professional inspect your floor to determine the root cause.

The Simi Valley, CA homeowners’ guide to structural engineering services

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