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Engineer structural pros in Placentia

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


BCI Engineering
15375 Barranca Pkwy, Unit B205
5.00(
2
)
Approved Pro
BCI Engineering
15375 Barranca Pkwy, Unit B205
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

We’re a reputable engineering and design company that has been doing business in Southern California for over 20 years. We specialize in residential and commercial fire restoration projects and room additions. We handle all required services up to plans approval and permitting.

"I am extremely pleased with the outstanding work done by BCI Engineering. From start to finish, their professionalism and expertise were evident. The attention to detail and seamless communication throughout the process made the experience truly enjoyable. I highly recommend this company for any architectural/engineering needs. Five stars for being reliable and cost effective."

Joshua B on August 2023

We’re a reputable engineering and design company that has been doing business in Southern California for over 20 years. We specialize in residential and commercial fire restoration projects and room additions. We handle all required services up to plans approval and permitting.

"I am extremely pleased with the outstanding work done by BCI Engineering. From start to finish, their professionalism and expertise were evident. The attention to detail and seamless communication throughout the process made the experience truly enjoyable. I highly recommend this company for any architectural/engineering needs. Five stars for being reliable and cost effective."

Joshua B on August 2023


FMH Engineering, Inc.
410 Goddard, Suite 200
5.00(
12
)
Approved Pro
FMH Engineering, Inc.
410 Goddard, Suite 200
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

At FMH Engineering, Structural Design, we will make your dreams go from paper to reality. Your satisfaction is our number one priority. We are detail oriented and love what we do. The design and engineering we do each day is our ultimate passion and it shows in every completed project.

"Fady is great! Very professional and fast service! He was very responsive and helpful with our plans for a custom home. Very easy to work with and has a lot of great suggestions. Highly recommended!"

Daniel G on April 2021

At FMH Engineering, Structural Design, we will make your dreams go from paper to reality. Your satisfaction is our number one priority. We are detail oriented and love what we do. The design and engineering we do each day is our ultimate passion and it shows in every completed project.

"Fady is great! Very professional and fast service! He was very responsive and helpful with our plans for a custom home. Very easy to work with and has a lot of great suggestions. Highly recommended!"

Daniel G on April 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


AAA Engineering Design
3130 East Willow Street
4.75(
6
)
Approved Pro
AAA Engineering Design
3130 East Willow Street
4.75(
6
)
Approved Pro
Customers say: Quality work
18 years of experience
Free onsite estimate

With over two decades of experience, we specialize in residential and commercial structures requiring timber, steel, concrete, and CMU design. Our design approach is to maximize safety while also maintaining proper constructability and construction cost. Our commercial projects span from shopping centers, office buildings, retail stores, and everything in between to meet our client's needs. Whether it's remodeling a space or new builds, our design approach will ensure the structural aspect will meet any city requirements in California, while also providing a quick turnaround to meet any deadline. Give us a call, text or email today, and let us get started!

"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."

Smadar A on June 2025

With over two decades of experience, we specialize in residential and commercial structures requiring timber, steel, concrete, and CMU design. Our design approach is to maximize safety while also maintaining proper constructability and construction cost. Our commercial projects span from shopping centers, office buildings, retail stores, and everything in between to meet our client's needs. Whether it's remodeling a space or new builds, our design approach will ensure the structural aspect will meet any city requirements in California, while also providing a quick turnaround to meet any deadline. Give us a call, text or email today, and let us get started!

"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."

Smadar A on June 2025


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
22 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


Avatar for Pac Sands Corp
Pac Sands Corp
1309 Coffeen Ave STE !200
5.00(
2
)
Approved Pro
Pac Sands Corp
1309 Coffeen Ave STE !200
5.00(
2
)
Approved Pro
8 years of experience
Free onsite estimate

We specialize in home designs, architectural plans and structural drawings for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Hired Pacific Sands after we lost our home in the Eaton Fires in Altadena. We were very happy with their team and the designs they finished for us. Their permitting team was amazing too, so happy they were able to help with that part of the process. too. "

Anna H on May 2025

We specialize in home designs, architectural plans and structural drawings for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Hired Pacific Sands after we lost our home in the Eaton Fires in Altadena. We were very happy with their team and the designs they finished for us. Their permitting team was amazing too, so happy they were able to help with that part of the process. too. "

Anna H 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
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


Avatar for Opulent Design Build
Opulent Design Build
9471 Irvine Center Drive, Suite 150
New on HomeAdvisorNew on Angi
Approved Pro
Opulent Design Build
9471 Irvine Center Drive, Suite 150
New on AngiNew on HomeAdvisor
Approved Pro
52 local quotes requested
23 years of experience

Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.

Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.


Embee & Associates
8010 Haven Avenue
5.00(
2
)
Approved Pro
Embee & Associates
8010 Haven Avenue
5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
174 local quotes requested

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!! I chose to work in this industry because I have a passion for building and completing projects. I also have substantial past experience in this field. I served in the Army in a construction MOS. After completing my service, I started working for a California state electrical indentured apprenticeship program. Soon after completing the program, I became a superintendent for an electrical company. Subsequently, I started working with EmBee and associates as a project manager and have been managing projects for 10 years. We started in this industry in 1955. We describe our business as Multi-generational.

"Can’t say enough positives about Embee, they came in and really helped in all facets of what was a very stressful time dealing with insurance companies and our housing hoa. They kept me informed and when the time came they went above beyond my expectations, I would recommend them to anyone who needs this kind of work."

James M on May 2025

Here at Embee & Associates, Inc., we pride ourselves in a job well done. With an eye for detail, we will help your dreams become realities so please contact us today for a fast and friendly service that you will not be disappointed in!! I chose to work in this industry because I have a passion for building and completing projects. I also have substantial past experience in this field. I served in the Army in a construction MOS. After completing my service, I started working for a California state electrical indentured apprenticeship program. Soon after completing the program, I became a superintendent for an electrical company. Subsequently, I started working with EmBee and associates as a project manager and have been managing projects for 10 years. We started in this industry in 1955. We describe our business as Multi-generational.

"Can’t say enough positives about Embee, they came in and really helped in all facets of what was a very stressful time dealing with insurance companies and our housing hoa. They kept me informed and when the time came they went above beyond my expectations, I would recommend them to anyone who needs this kind of work."

James M on May 2025

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FAQs for engineer structural projects in Placentia, 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 Placentia, CA homeowners’ guide to engineer structurals
From average costs to expert advice, get all the answers you need to get your job done.
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Jun 22, 2025
Jun 22, 2025
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Cozy house interior with a wooden floor
Jun 17, 2025
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