Get matched with top structural engineers in Los Angeles, CA

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4.9

(17 reviews)

Top-rated structural engineers.

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Find Structural engineers in Los Angeles

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

Serving Los Angeles, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"Excellent experience again with Alpha Structural. Charlie Rosenkranz came to see the 3-story apartment building in West Hollywood. We discussed what the soft story retrofit plans will likely include. He's knowledgeable and experienced. We appreciated his professional no-pressure approach and answering our questions. Alpha performed an exploratory investigation of the support structure, as architectural plans were not available. They engineered the plans with city approval. They then consulted with us and provided the approved THP (Tenant Habitability Plan) paperwork. Production Manager Dave Schlaich and Job Supervisor Seth Price met me before construction. Dave went over the approved plans and explained the work that would be performed, and the purpose. They both answered all my questions. Lawrence and Antonio were the main work team. They were very pleasant and answered all our questions. Both had great explanations with Lawrence being very detailed. Seth provided timely progress reports by phone and text. He answered all questions, and provided contacts for automatic shut-off gas valves and stucco work. Despite Covid-19, they scheduled and passed inspections, and completed the work in under a month. We've seen projects by other companies stuck in limbo for months with no progress, so we chose Alpha to avoid complications. They removed all debris, and left the property clean. The tenants and neighbors had no complaints. Daniel Aparicio also explained various issues. Communication with everyone, including the office staff, was excellent. We're very pleased with this experience."
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
Avatar for PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
4.8(
12
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 1976

Warranties offered

Credit card accepted

"The project went great. Peter is very professional, super knowledgeable, responsive and timely. The plans were done on time and there were no problems with the city review. They answered the questions the contractor had during the construction. Couldn't be happier with the whole process. I thought it would be more difficult than it was. Thanks to Peter and his team we feel very safe with the new addition. We are planning on putting a second story on our house (when we can afford it) and we will absolutely use Peter.
"
Beverly Hills
Pacific Palisades
Culver City
3 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for TY Engineering and Design, Inc.
TY Engineering and Design, Inc.
4.5(
86
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"Ty Engineering provided me with the information I needed to resolve my issue without hiring any company. He was very helpful in discribing what was happening to my house and how it could be resolved. I will be contacting him when and if I need any work completed on my house which requires an engineer."
Response time1 day
Recommended by96%of homeowners
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2018

Offers commercial services

Customers say: Quick response

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

Slab On Grade - Carport
Foundation Underpinning
Existing Wall
Existing Wall/ Form Work
FOundation Underpinning

+15

Response time8 hrs
Recommended by100%of homeowners
Avatar for ESL Designs
ESL Designs
4.7(
33
)

Serving Los Angeles, 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
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for RR Building Design
RR Building Design
5.0(
27
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"My name is Michael Ghati. I hired R&R design to produce plans and pull the necessary permits from the city for a big remodeling job in a short time. The father and son (Rene and Franco) did an excellent job for me. They are extremely responsible, reasonable,personable,effortless and pleasure to work with. They have my blessing and I highly recommend them to anyone that can use their services."
2nd Story addition
New ADU
isometric
front
interior

+15

Response time4 days
Response rate91%
Recommended by96%of homeowners
Avatar for AAA Engineering Design
AAA Engineering Design
4.1(
9
)

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

With over two decades of experience, we provide structural engineering services for residential and commercial projects throughout California. We specialize in timber, steel, concrete, and CMU structural design for public and private sector developments. Our approach focuses on safety, constructability, cost efficiency, and full code compliance.\nOur experience includes shopping centers, office buildings, retail spaces, tenant improvements, industrial facilities, new homes, additions, remodels, ADUs, retaining walls, foundation systems, seismic retrofits, and structural upgrades. We work closely with owners, architects, contractors, and local agencies to deliver practical engineering solutions with fast turnaround times and reliable support from design through permitting and construction. Customer satisfaction, clear communication, and dependable service are the foundation of our business. Contact us today to discuss your project.

3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos

+5

13 neighbors recently requested a quote
Recommended by66%of homeowners
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Structural Engineering questions, answered by experts

Completing structural engineering projects in Los Angeles offers immediate benefits like meeting strict earthquake retrofitting requirements and improving building safety. Over time, you’ll gain enhanced resilience against seismic events, increased property value in a competitive market, and reduced risk of structural damage. Proactive upgrades also help you avoid future code-driven renovations and support long-term energy efficiency for your property.

Helpful?

When hiring structural engineering professionals in Los Angeles, prioritize those with proven expertise in earthquake retrofitting and hillside construction. Look for a strong track record navigating local building codes and successful foundation design projects. Ensure they communicate clearly, carry robust insurance, and provide solid references from recent LA-area clients. Avoid firms lacking local experience or those with vague project timelines.

Helpful?

Los Angeles’ dry climate allows for steady construction, but seismic activity and wildfire risk—especially in hillside areas—demand specialized structural engineering approaches. Foundation design must address expansive soils and potential liquefaction zones. Material selection should resist sun exposure and, in coastal neighborhoods, salt air corrosion. Planning around fire season and protecting work sites from rare heavy rains are also essential for successful project completion.

Helpful?

In Los Angeles, small residential structural engineering projects typically take 10–22 weeks, while mid-sized commercial work may require 26–48 weeks. Large-scale builds or major foundation design upgrades can extend to 58–144 weeks. Projects in hillside neighborhoods, historic zones, or those needing extensive seismic upgrades often require additional time due to complex permitting and specialized engineering solutions.

Helpful?

Before starting structural engineering work in Los Angeles, review your property’s history for prior earthquake retrofitting or hillside construction. Schedule a soil and foundation assessment, especially if your site is near fault lines or in a liquefaction zone. Secure all required permits early and coordinate with local utility providers. Consulting with neighbors about construction timelines can also help prevent disputes and unexpected project interruptions.

Helpful?

The Los Angeles, CA homeowners’ guide to structural engineering services

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