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  • Verified reviews icon20
    Verified structural engineering services reviews

Find Structural engineers in Foothill Ranch

Avatar for New Beginning Engineering

New Beginning Engineering

5.00(
15
)
Approved Pro

New Beginning Engineering

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
176 local quotes requested

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 Alpha Structural, Inc.

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro

Alpha Structural, Inc.

8334 Foothill Blvd
4.67(
231
)
Approved Pro
Customers say: Super punctual
219 local quotes requested
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.

"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."

Robert N on September 2024

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.

"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."

Robert N on September 2024


Avatar for Harsini, Inc.

Harsini, Inc.

2121 Avenue Of The Stars Suite 800
5.00(
6
)
Approved Pro

Harsini, Inc.

2121 Avenue Of The Stars Suite 800
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 Engineering Solver, Inc.

Engineering Solver, Inc.

26895 Aliso Creek Rd Suite - B-6333
5.00(
1
)
Approved Pro

Engineering Solver, Inc.

26895 Aliso Creek Rd Suite - B-6333
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

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. We 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.

"I have worked with him several times, very professional, on time, reliable, and I enjoyed working with him."

Hamad Y on November 2020

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. We 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.

"I have worked with him several times, very professional, on time, reliable, and I enjoyed working with him."

Hamad Y on November 2020


Avatar for Nick Engineering, Inc.

Nick Engineering, Inc.

3842 Hendrix St
4.94(
17
)
Approved Pro

Nick Engineering, Inc.

3842 Hendrix St
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 OConsulting

OConsulting

100 Spectrum Center Dr. Ste. 9-283
4.88(
4
)
Approved Pro

OConsulting

100 Spectrum Center Dr. Ste. 9-283
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 15 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 15 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


Avatar for RCS Engineering Services

RCS Engineering Services

2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
Approved Pro

RCS Engineering Services

2335 East Colorado Boulebard, Unit 115-170
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

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.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020

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.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020


Avatar for Alpha Omega

Alpha Omega

12940 Excalibur Drive
4.63(
75
)
Approved Pro

Alpha Omega

12940 Excalibur Drive
4.63(
75
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
62 local quotes requested

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


W. L. McCarthy, RCE

12890 Panorama Place
4.28(
29
)
Approved Pro

W. L. McCarthy, RCE

12890 Panorama Place
4.28(
29
)
Approved Pro
Customers say: Terrific value
10 local quotes requested
30 years of experience

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


Calebs Imagination

1000 Simplicity
No reviews yet

Calebs Imagination

1000 Simplicity
No reviews yet
5 years of experience

Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!

Building or remodeling your dream home. Whatever your imagination envisions we can make it a reality. We have 25 years of experience with pulling permits, designing, drawing schematics/blueprints, earthwork, concrete, stucco, framing, roofing, Plumbing, electrical, HVAC, windows, drywall, insulation and more!

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Structural Engineering questions, answered by experts

In many areas, advice from a structural engineer or an architect will be required by your building department before you can remove a wall, but even if it’s not necessary, it’s a good idea. Accidentally removing a load-bearing wall—even if a general contractor advises that it’s safe—can cause major structural damage, putting you and your family at risk and potentially costing thousands or tens of thousands of dollars in property damage.

Yes, you can put a doorway in a structural wall; in fact, most exterior doors are set into structural walls. The project is a little more challenging than installing a door in a non-load-bearing wall because you need a structural engineer to assess the wall and make sure it’s safe to create a wall opening. Your engineer’s report will include instructions for your contractor on how and where to install additional supports, like steel headers above the door, to distribute the weight above to the wall on either side of the door.

No, a structural engineer is not the same as a builder. A structural engineer is an expert in all things related to the structural integrity of a building. The structural engineer is responsible for calculating the correct materials in terms of load-bearing capacity and overall structural safety. Structural engineers do not perform the actual building of the house or other structures. Rather, the builder executes the plans and designs specified by the structural engineer.

First, most contractors will have a structural engineer create a report and plan for your project to ensure it’s safe to cut into the load-bearing wall. The contractor will then excavate around the wall, if necessary, measure the opening—allowing for additional space to fit and level the door, and then cut the doorway out. They will likely install a steel lintel as a header over the door for support. Once the doorway is cut out, they’ll demolish the concrete using sledge hammers and masonry chisels, clean up the surrounding concrete, and seal around the door with masonry mortar. 

Costs depend on desk size, labor, included features like drawers or motorized height adjustments, and required wall anchoring.

The Foothill Ranch, CA homeowners’ guide to structural engineering services

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