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Find Engineer structural pros in Los Angeles

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

Serving Los Angeles, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"I worked with Alpha once before, and they assisted with a second project 2 years ago which, now finally completed, I'm able to write a review about. Alpha helped with structural plans for windows in a garden level unit in order to prepare the proposal for city approval. Alpha is a big company and it took them a little while to complete everything; however I can certainly say that the engineer and contact people were knowledgeable and thorough. The plans were approved with their help and now that the unit is permitted for occupancy, the windows are a lovely attribute to the space."
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%
12 neighbors recently requested a quote
Avatar for TY Engineering and Design, Inc.
TY Engineering and Design, Inc.
4.5(
86
)
Engineer - Structural

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

"I've had the recent good fortune to work with Tolga on renovation projects in Los Angeles and Manhattan Beach for which I am the Architect. The success of renovation work relies heavily on collaborative and creative structural engineering in order to realize interior and exterior architecture goals. Tolga instinctively understood my design goals and in a very professional manner he crafted solutions to bring them to reality. Many thanks Tolga. I look forward to our next collaboration."
Response time1 day
Recommended by96%of homeowners
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)
Engineer - Structural

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
Peter T. Erdelyi & Associates, Inc.
3.9(
115
)
Engineer - Structural

Serving Los Angeles, CA and surrounding areas

Approved

In business since 1976

Free estimates

Warranties offered

"Having built many projects and delt with many engineering firms in my business, I’m very impressed with how quick and professional they are, I personally met with Peter himself, a class act gentleman all the way! I would recommend him and his team without a doubt, look forward to giving them all my projects from now on, apricate all you and your team are doing for us. Thanks guys!"
 1
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2
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+11

Response time2 days
133 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for AAA Engineering Design
AAA Engineering Design
4.1(
9
)
Engineer - Structural

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

29 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for JZ Structural, Inc.
JZ Structural, Inc.
5.0(
3
)
Engineer - Structural

Serving Los Angeles, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

JZ Structural, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

ADU
ADU
ADU
ADU
ADU

+38

Response time2 days
Recommended by50%of homeowners
Avatar for Standley Structural Design
Standley Structural Design
5.0(
1
)
Engineer - Structural

Serving Los Angeles, 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!

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

Serving Los Angeles, 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
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FAQs for engineer structural projects in Los Angeles, CA

You should replace floor joists as soon as you see clear signs of structural trouble—sagging floors, wide wall cracks, uneven door frames, wet or rotting wood, persistent squeaks, or windows that no longer latch. Tilted or sinking supports in the crawl space are another red flag. If you notice any of these signs, call a pro right away to keep your home’s structure safe.

If the joists are exposed from below, a pro can swap them out without touching the finished floor above. In an unfinished basement or crawl space, you’ll often see the joists and can easily reach them. When insulation, subflooring, or finished flooring blocks access, the crew must remove these materials before repairs can begin.

Sistering allows a pro to reinforce a cracked or undersized joist without tearing up the entire floor. The contractor slowly raises the frame, then fastens a new joist snugly against the damaged one to share the load. When done correctly, sistering restores full structural strength and keeps the floor level without the cost of a complete replacement.

Floor joists installed correctly in a stable environment can last for 100 years or more, often outlasting the house itself. However, termite damage, moisture, leaks, and other problems can significantly reduce a floor's lifespan. For instance, if the floor is exposed to consistent moisture, you'll likely need to replace the joists every 20 to 30 years.

Homeowners' insurance covers floor joist damage resulting from sudden and accidental events, such as fire, windstorm, or water damage from a burst pipe. It will not cover repairs resulting from gradual deterioration, poor maintenance, or termite infestations. Review your insurance policy and consult your provider to verify the conditions that guarantee full coverage. Doing so ensures you are fully aware of your responsibilities and can plan your repair work with complete confidence.

Floor joists are essential structural components that provide a stable foundation for your home. They directly transfer the weight of floors, furniture, and occupants to the foundation, ensuring stability and a safe living environment. Without these robust beams, the structure would face compromised load distribution, leading to potential safety hazards and costly repairs. Proper installation and maintenance are crucial for long-term durability and safety.

The Los Angeles, CA homeowners’ guide to engineer structurals

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