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Top-Rated Engineer structural pros in Orange - Updated Nov 2026

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

Serving Orange, 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%
10 neighbors recently requested a quote
Avatar for K & K Engineering
K & K Engineering
5.0(
15
)
Engineer - Structural

Serving Orange, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Working with Kyle Askarian and K&K Engineering was a great and hands-down the best decision we made for our project. If you are looking for a structural engineer who is incredibly meticulous, highly efficient, and easy to talk to, this is the one.Structural issues and calculations can easily delay a project, but [Engineer's Name] ensured everything went perfectly. Here is what stood out the most:"
Response time10 hrs
Response rate98%
Recommended by57%of homeowners
Avatar for Nick Engineering, Inc.
Nick Engineering, Inc.
5.0(
21
)
Engineer - Structural

Serving Orange, CA and surrounding areas

Approved

In business since 2013

Customers say: True professional

"I recently had the pleasure of working with an exceptional engineer who handled the structural engineering plan for my kitchen remodeling project, including the removal of a load-bearing wall. Throughout the entire process, this gentleman displayed an outstanding level of professionalism, effective communication, and an unwavering commitment to delivering on his promises. I am thrilled to share my experience and highly recommend his services. From the very beginning, it was evident that this engineer was dedicated to providing exceptional service. His friendly and approachable demeanor made it easy to communicate my ideas and concerns, and he listened attentively to understand my vision for the project. Not only did he grasp the technical aspects of the plan, but he also ensured that he fully understood my requirements and preferences, making me feel confident that I was in capable hands. One of the key qualities that impressed me was his precision and attention to detail. The engineer meticulously analyzed the existing structure and devised a comprehensive plan that addressed the load-bearing wall removal, ensuring the structural integrity of my home. His expertise and thoroughness were evident in every aspect of the plan, leaving no room for errors or doubts. I truly appreciated his dedication to producing a reliable and safe design. Furthermore, the engineer's commitment to delivering within the promised timeframe was commendable. He provided an estimated schedule at the beginning of the project, and I was amazed at how diligently he adhered to it. His punctuality and ability to meet deadlines were remarkable, which made the entire process smooth and stress-free. It was refreshing to work with someone who valued my time and made it a priority to complete the project on schedule. Additionally, when we encountered a minor setback due to feedback from the city regarding few modifications, the engineer promptly addressed the issue without hesitation. He quickly incorporated the necessary changes into the plan, ensuring compliance with the city's requirements. Throughout this process, he remained cooperative, responsive, and highly professional, handling all the necessary revisions with efficiency and expertise. Overall, my experience with this engineer was exceptional. His outstanding communication skills, friendliness, precision, commitment to timelines, and cooperative nature surpassed my expectations. I am thrilled with the results of the kitchen remodel and load-bearing wall removal, thanks to his expertise and dedication. I wholeheartedly recommend his services to anyone in need of a talented and reliable engineer for their home renovation projects."
Exterior before demolition
Exterior framing
Exterior completed
Exterior completed
Exterior view

+26

Response time9 hrs
Recommended by88%of homeowners
Avatar for Alpha Omega
Alpha Omega
4.0(
116
)
Engineer - Structural

Serving Orange, CA and surrounding areas

Approved

In business since 2003

Free estimates

Small jobs welcome

"If you need a Structural Engineer you call Ehab at Alpha Omega hands down! He is knowledgeable, professional and easy to do business with. Thank you"
Plot Plan for Auto Dealer
Auto Body Shop
Response time10 hrs
Response rate86%
64 neighbors recently requested a quote
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)
Engineer - Structural

Serving Orange, 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 AAA Engineering Design
AAA Engineering Design
4.1(
9
)
Engineer - Structural

Serving Orange, 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

25 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Harsini, Inc.
Harsini, Inc.
5.0(
7
)
Engineer - Structural

Serving Orange, 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 Engineering Solver, Inc.
Engineering Solver, Inc.
5.0(
1
)
Engineer - Structural

Serving Orange, CA and surrounding areas

Approved

In business since 2019

Free estimates

Customers say: Quick response

We provide Structural Engineering services for various types of projects including new construction, addition/remodeling and seismic retrofit. Our service area covers most of Southern California, and we have multiple experienced Professional Engineers in our team to find the best solution for the specific needs of your project. \n \nWe take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. We take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Foundation Plan and Details
2nd Story Framing Plan and Details
Roof Framing and Details
Response time1 day
Recommended by100%of homeowners
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FAQs for engineer structural projects in Orange, 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 Orange, CA homeowners’ guide to engineer structurals

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