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    Average homeowner rating
  • Verified reviews icon11
    Verified structural engineering services reviews

Find Structural engineers in Orange

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

4.76(
147
)
Approved Pro

Alpha Structural, Inc.

4.76(
147
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
33 years of experience

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"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!!"

Laurie C on August 2023

Alpha Structural, Inc. has over 850 years of combined technical experience in Foundation and Hillside Repair. All of our experience is hard-core and down-in-the-trenches – not managed from behind a computer. Our in-house engineers and technicians are among the most experienced in all of Southern California. Alpha Structural, Inc. is the ONLY company in the SOCAL area licensed to ENGINEER and BUILD any type of repair project. That means that you'll work with us through the whole project, not unknown sub-contractors that you didn't hire and cannot control or predict. Alpha Structural, Inc. a licensed, bonded, and insured contractor (license # 663409). We are licensed with the following classifications: A (General Engineering Contractor). B (General Building Contractor). C-8 (Concrete). HIC (Home Improvement Contractor). CALL US NOW FOR AN INSPECTION OR ESTIMATE! (323)258-5482.

"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!!"

Laurie C on August 2023


Avatar for Nick Engineering, Inc.

Nick Engineering, Inc.

4.94(
17
)
Approved Pro

Nick Engineering, Inc.

4.94(
17
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Sam did a fantastic job in designing the structural engineering calculations for my new construction project in Santa Ana. He was very honest and recommended the all right things to create a strong foundation, which helped with an outstanding outcome! Sam was very helpful and responsive through the whole process especially fulfilling all the city?s requirements. I am extremely happy with my experience with Sam at Nick Engineering and will definitely use his services again in the future."

Shorouq S on December 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Sam did a fantastic job in designing the structural engineering calculations for my new construction project in Santa Ana. He was very honest and recommended the all right things to create a strong foundation, which helped with an outstanding outcome! Sam was very helpful and responsive through the whole process especially fulfilling all the city?s requirements. I am extremely happy with my experience with Sam at Nick Engineering and will definitely use his services again in the future."

Shorouq S on December 2024


Avatar for Level Engineering Los Angeles, CA (Main)

Level Engineering Los Angeles, CA (Main)

4.60(
270
)
Approved Pro

Level Engineering Los Angeles, CA (Main)

4.60(
270
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
10 years of experience

At LEVEL Engineering, we are committed to common sense, real-world engineering solutions. We started LEVEL because, after years in the building industry (Civil, Structural, Home Building, etc) we continued to see something missing in our industry that cost homeowners untold stress and frustration, contractors lost time and money and realtors and lenders left unable to satisfy their client's needs. We decided to do something about it, and then - LEVEL Engineering was founded. We serve your interests and provide knowledgeable, expert inspection, analysis, recommendation, and reporting. So whether your need is for permitting, forensics, foundation problems, new or repair engineering designs; or just for your peace of mind - let us help you navigate your structural engineering projects.

"extremely knowledgeable and office staff is wonderful to work with."

diana c on January 2024

At LEVEL Engineering, we are committed to common sense, real-world engineering solutions. We started LEVEL because, after years in the building industry (Civil, Structural, Home Building, etc) we continued to see something missing in our industry that cost homeowners untold stress and frustration, contractors lost time and money and realtors and lenders left unable to satisfy their client's needs. We decided to do something about it, and then - LEVEL Engineering was founded. We serve your interests and provide knowledgeable, expert inspection, analysis, recommendation, and reporting. So whether your need is for permitting, forensics, foundation problems, new or repair engineering designs; or just for your peace of mind - let us help you navigate your structural engineering projects.

"extremely knowledgeable and office staff is wonderful to work with."

diana c on January 2024


Avatar for New Beginning Engineering

New Beginning Engineering

5.00(
15
)
Approved Pro

New Beginning Engineering

5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

We are a full service Architectural and Structural Engineering family-owned company and believe that quality, honesty, and fair pricing are the cornerstones to a trusting working relationship between home owner and engineer. Architectural and Structural Engineering Solutions For: --ADU's --New Home Design & Construction --2nd Floor Additions --Decks and Patio Covers --Retaining Walls and Basements --Home Design on Hillsides --All residential and commercial needs for Architectural and Structural Engineering We are a Christian based engineering company and conduct our business with the utmost ethics. We operate our business on a lump price fee. With this price, you don’t end up paying for change orders or comments back from the city. Our lump sum fee includes getting you all the way to permit. We will provide you with clean, clear, and professional looking architectural and structural engineering plans and calculations for both your contractor and for submission to your city agency. We also serve many realtors as well providing structural engineering assessment for properties either during a pre-approval process or during their contingency period to ensure the home being purchased is structurally adequate with no major issues. We chose to work in this industry because we want our customers to obtain their dreams. Your home is your sanctuary. Make your home the way you want it and work with a company that values trust, integrity, and quality.

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025

We are a full service Architectural and Structural Engineering family-owned company and believe that quality, honesty, and fair pricing are the cornerstones to a trusting working relationship between home owner and engineer. Architectural and Structural Engineering Solutions For: --ADU's --New Home Design & Construction --2nd Floor Additions --Decks and Patio Covers --Retaining Walls and Basements --Home Design on Hillsides --All residential and commercial needs for Architectural and Structural Engineering We are a Christian based engineering company and conduct our business with the utmost ethics. We operate our business on a lump price fee. With this price, you don’t end up paying for change orders or comments back from the city. Our lump sum fee includes getting you all the way to permit. We will provide you with clean, clear, and professional looking architectural and structural engineering plans and calculations for both your contractor and for submission to your city agency. We also serve many realtors as well providing structural engineering assessment for properties either during a pre-approval process or during their contingency period to ensure the home being purchased is structurally adequate with no major issues. We chose to work in this industry because we want our customers to obtain their dreams. Your home is your sanctuary. Make your home the way you want it and work with a company that values trust, integrity, and quality.

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025


Avatar for K & K Engineering

K & K Engineering

4.95(
10
)
Approved Pro

K & K Engineering

4.95(
10
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

We are a locally owned and operated company with years worth of experience in structural engineering. We continue to build upon our excellent reputation by serving you with superior results and complete satisfaction. Please call us for all of your structural engineering needs!

"It was great working with Kyle! He was very knowledgeable and answered all of my structural questions about my condo. I’d be happy to work with him again on my future projects!"

Qiana B on May 2025

We are a locally owned and operated company with years worth of experience in structural engineering. We continue to build upon our excellent reputation by serving you with superior results and complete satisfaction. Please call us for all of your structural engineering needs!

"It was great working with Kyle! He was very knowledgeable and answered all of my structural questions about my condo. I’d be happy to work with him again on my future projects!"

Qiana B on May 2025


Avatar for Alpha Omega

Alpha Omega

4.63(
75
)
Approved Pro

Alpha Omega

4.63(
75
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
22 years of experience

Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.

"."

Nissa G on May 2025

Alpha Omega is a full engineering firm and full service provider of residential and commercial construction with a reputation for complete customer satisfaction and on time, on budget completion of a wide variety of construction projects. With years of experience serving our clients throughout Inland Empire area, Alpha Omega has developed a reputation for intelligent design, creative problem solving, and an uncompromising commitment to professionalism, and integrity, that has made us one of the areas most respected and in demand general contractors and engineering firm. Whether working directly with our end customers, or contracted through an intermediary architectural engineering firm, we have the capability to faithfully execute your plans or provide design and build services as required.

"."

Nissa G on May 2025


Avatar for Harsini, Inc.

Harsini, Inc.

5.00(
6
)
Approved Pro

Harsini, Inc.

5.00(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our field and will always keep you informed on your particular task or project in a manner that is understandable to you. We look forward to earning your business!

"Mahyar was knowledgeable and a great communicator. His report was clear and helpful. He was also prompt in responding. All-around pleasant to work with. Highly recommend this firm."

Liz G on April 2023

We pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our field and will always keep you informed on your particular task or project in a manner that is understandable to you. We look forward to earning your business!

"Mahyar was knowledgeable and a great communicator. His report was clear and helpful. He was also prompt in responding. All-around pleasant to work with. Highly recommend this firm."

Liz G on April 2023


Avatar for Moonshot Consultancy LLC

Moonshot Consultancy LLC

5.00(
7
)
Approved Pro

Moonshot Consultancy LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We are 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

"Kevin is very good! Permits were approved with ease in a tough City to obtain permits."

Abdulla M on March 2024

We are 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

"Kevin is very good! Permits were approved with ease in a tough City to obtain permits."

Abdulla M on March 2024


Avatar for OConsulting

OConsulting

4.88(
4
)
Approved Pro

OConsulting

4.88(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

OConsulting is locally owned and operated in Irvine, CA. With over 20 years of experience, we are experts in structural design for residential and commercial projects! We believe in empowering our clients with knowledge, taking the time to explore costs and benefits throughout the project. We are practical. We are flexible. We are customer-centric. We leverage the latest in design tools and comply with all building code requirements. We take pride in every project we take on and work hard to ensure all your expectations are met! We can help with structural design for: * NEW - We can help you from the ground-up on an entirely new project. * REMODEL - Looking to remove walls and open up space? Please note: for soils report, please contact a geotechnical firm; for a foundation inspection, please contact a foundation repair company.

"AMAZING! This was my first time doing an addition to our house and I called Fredy based on a referral from my neighbor. Fredy is nice, professional, caring and true to his word. He came out to the house, even though we are only adding 36 square feet (taking garage space to enlarge the bathroom), he treated me like it was his most important project. He answered all of my questions - I had a few being new to this. He provided all of the needed plans, specs and paperwork and for the best price (I compared 2 other firms). The plans were perfect and the city approved them while I was at the counter - in and out. After getting the plans approved, Fredy was there to answer follow up questions that my contractor had too. I will be using Fredy on every project moving forward and referring him to anyone needing his services."

Tim P on September 2021

OConsulting is locally owned and operated in Irvine, CA. With over 20 years of experience, we are experts in structural design for residential and commercial projects! We believe in empowering our clients with knowledge, taking the time to explore costs and benefits throughout the project. We are practical. We are flexible. We are customer-centric. We leverage the latest in design tools and comply with all building code requirements. We take pride in every project we take on and work hard to ensure all your expectations are met! We can help with structural design for: * NEW - We can help you from the ground-up on an entirely new project. * REMODEL - Looking to remove walls and open up space? Please note: for soils report, please contact a geotechnical firm; for a foundation inspection, please contact a foundation repair company.

"AMAZING! This was my first time doing an addition to our house and I called Fredy based on a referral from my neighbor. Fredy is nice, professional, caring and true to his word. He came out to the house, even though we are only adding 36 square feet (taking garage space to enlarge the bathroom), he treated me like it was his most important project. He answered all of my questions - I had a few being new to this. He provided all of the needed plans, specs and paperwork and for the best price (I compared 2 other firms). The plans were perfect and the city approved them while I was at the counter - in and out. After getting the plans approved, Fredy was there to answer follow up questions that my contractor had too. I will be using Fredy on every project moving forward and referring him to anyone needing his services."

Tim P on September 2021


W. L. McCarthy, RCE

4.28(
29
)
Approved Pro

W. L. McCarthy, RCE

4.28(
29
)
Approved Pro
Customers say: Terrific value
30 years of experience
Free onsite estimate

W. L. McCarthy, RCE is a locally owned and operated business with over 20 years of experience. We will provide you with excellent workmanship and reasonable pricing for all phases of your engineering needs. We stay small so that we can give you personalized, individual service through final completion of your project. We are detail and quality oriented providing outstanding services on each and every project that we handle. W. L. McCarthy, RCE provides superior service and satisfaction. Let us show you why homeowners prefer our services above the rest!

"Although my project was small, William agreed to help. Professional and punctual, drawing delivery was on time. Thank you!"

Manny B on September 2023

W. L. McCarthy, RCE is a locally owned and operated business with over 20 years of experience. We will provide you with excellent workmanship and reasonable pricing for all phases of your engineering needs. We stay small so that we can give you personalized, individual service through final completion of your project. We are detail and quality oriented providing outstanding services on each and every project that we handle. W. L. McCarthy, RCE provides superior service and satisfaction. Let us show you why homeowners prefer our services above the rest!

"Although my project was small, William agreed to help. Professional and punctual, drawing delivery was on time. Thank you!"

Manny B on September 2023

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Structural Engineering questions, answered by experts

To keep your family safe during structural engineering projects in Orange, schedule noisy or disruptive work while children are out and set up sturdy barriers around work areas. Because local soils can create extra dust, seal off construction zones and use air purifiers to improve home safety. Store all adhesives and tools securely, and relocate pets to a quiet, shaded area away from the construction.

Helpful?

In Orange, pay attention to small foundation cracks that expand during rainy seasons, or minor wall separations that worsen after seismic events. Cracks near pool decks or patios, or new gaps around windows and doors, can signal shifting soils common in the area. If you notice these issues spreading or recurring, a prompt structural inspection can help prevent more extensive foundation repair later.

Helpful?

In Orange, signs like wide or widening foundation cracks, sloping floors, or persistent sticking doors and windows often indicate the need for a structural inspection. If you notice stair-step cracks in block walls, shifting after seismic activity, or gaps forming between walls and ceilings, consult a structural engineer. Cosmetic drywall cracks or minor leaks usually require a general contractor or plumber instead.

Helpful?

In Orange, overwatering plants near your foundation, neglecting regular gutter cleaning, or ignoring minor settlement cracks can undermine structural repairs. Failing to check seismic anchors or allowing poor drainage around your home can also reduce the effectiveness of structural work. Avoid DIY modifications to support beams, and schedule periodic structural inspections to catch issues early and maintain long-term home safety.

Helpful?

In Orange, unexpected costs during structural engineering projects often include permit fees, required soil testing, and seismic retrofitting. You may also encounter expenses for rerouting underground utilities, repairing irrigation lines, or restoring hardscape after excavation. If termite or water damage is found during a structural inspection, additional repairs may be needed. Temporary relocation might be necessary if home safety is compromised during major work.

Helpful?

The Orange, CA homeowners’ guide to structural engineering services

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