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    Average homeowner rating
  • Verified reviews icon12
    Verified structural engineering services reviews

Find Structural engineers in Diamond Bar

Avatar for RCS Engineering Services

RCS Engineering Services

5.00(
3
)
Approved Pro

RCS Engineering Services

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 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
245 local quotes requested

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 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
61 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 J&S Engineering Contractors Inc

J&S Engineering Contractors Inc

No reviews yet

J&S Engineering Contractors Inc

No reviews yet

Specializing in all types of concrete work. Our goal is to Meet our client's expectations and ensuring their satisfaction is key to building strong, long lasting relationships in business.

Specializing in all types of concrete work. Our goal is to Meet our client's expectations and ensuring their satisfaction is key to building strong, long lasting relationships in business.



Calebs Imagination

No reviews yet

Calebs Imagination

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!


PSNE ENGINEERING

5.00(
2
)

PSNE ENGINEERING

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

PSNE ENGINEERING is a consultation and design firm specializing in residential and mid-sized commercial structures. Our licensed and experienced team of structural engineers and architects will ensure your project is safe and cost efficient. Our team will work directly with you, helping to bring your vision into reality. Our team's extensive knowledge of building and zoning regulations will make the permit process easy and time efficient, helping to reduce unnecessary fees and obtain construction permits in record time. Our in-house developed analysis and design software will limit the use of unnecessary structural material and substantially bring down the construction cost and time. Our one stop shop service guarantees an unbeatable rate. We stand by our cost saving guarantee and offer a price match policy. Our services include: Custom Home Design New Construction 1st and 2nd Floor Addition Garage Conversion Attached/Detached ADU Retaining Wall/ Property Wall Tenant Improvements Solar Panel Attachment Cover Patio Raised Decks/Balconies Bearing Wall Removal Shear Wall Removal Foundation Design Seismic Retrofit Title 24 Energy Calculations Structural Calculations Structural Inspection As-Built Study 3D Renderings Permit Acquisition Cost Estimation

"I recently had the pleasure of working with PSNE for a second-story addition to my home, and I must say, I am thoroughly impressed with their services. The project was completed about three months ago, and I couldn't be happier with the outcome. From the initial consultation to the final touches, PSNE exhibited professionalism and expertise at every step of the process. Despite the complexity of the project, they managed to deliver exceptional results within the agreed timeframe and budget of $8,000. What stood out to me the most was their straightforward approach. PSNE communicated clearly and effectively throughout the project, addressing any concerns or questions I had promptly. Everything was efficient, organized, and dedicated to ensuring that the job was done to perfection. Overall, my experience with PSNE was outstanding. They provided top-notch service, delivering a high-quality product that exceeded my expectations. I highly recommend PSNE to anyone in need of structural engineering services. They are a reliable and trustworthy company that gets the job done quickly and efficiently."

Yahya S on March 2024

PSNE ENGINEERING is a consultation and design firm specializing in residential and mid-sized commercial structures. Our licensed and experienced team of structural engineers and architects will ensure your project is safe and cost efficient. Our team will work directly with you, helping to bring your vision into reality. Our team's extensive knowledge of building and zoning regulations will make the permit process easy and time efficient, helping to reduce unnecessary fees and obtain construction permits in record time. Our in-house developed analysis and design software will limit the use of unnecessary structural material and substantially bring down the construction cost and time. Our one stop shop service guarantees an unbeatable rate. We stand by our cost saving guarantee and offer a price match policy. Our services include: Custom Home Design New Construction 1st and 2nd Floor Addition Garage Conversion Attached/Detached ADU Retaining Wall/ Property Wall Tenant Improvements Solar Panel Attachment Cover Patio Raised Decks/Balconies Bearing Wall Removal Shear Wall Removal Foundation Design Seismic Retrofit Title 24 Energy Calculations Structural Calculations Structural Inspection As-Built Study 3D Renderings Permit Acquisition Cost Estimation

"I recently had the pleasure of working with PSNE for a second-story addition to my home, and I must say, I am thoroughly impressed with their services. The project was completed about three months ago, and I couldn't be happier with the outcome. From the initial consultation to the final touches, PSNE exhibited professionalism and expertise at every step of the process. Despite the complexity of the project, they managed to deliver exceptional results within the agreed timeframe and budget of $8,000. What stood out to me the most was their straightforward approach. PSNE communicated clearly and effectively throughout the project, addressing any concerns or questions I had promptly. Everything was efficient, organized, and dedicated to ensuring that the job was done to perfection. Overall, my experience with PSNE was outstanding. They provided top-notch service, delivering a high-quality product that exceeded my expectations. I highly recommend PSNE to anyone in need of structural engineering services. They are a reliable and trustworthy company that gets the job done quickly and efficiently."

Yahya S on March 2024


Rehab Building Company, Inc.

No reviews yet

Rehab Building Company, Inc.

No reviews yet

Rehab Building Company, Inc. A License - Engineering B License - General Contractor C10 License - Electrical We are a growing company holding three licenses. We have done it all from residential, commercial to government work. As licensed contractor, we are in search of larger size projects using our expertise in engineering. Please contact us for all for major projects where you need seasoned expertise, quality workmanship and very professional contractors from start to finish. With over 80+ years in construction, we pride ourselves in the upmost quality, professionalism and expertise! Please call us for your next project.

Rehab Building Company, Inc. A License - Engineering B License - General Contractor C10 License - Electrical We are a growing company holding three licenses. We have done it all from residential, commercial to government work. As licensed contractor, we are in search of larger size projects using our expertise in engineering. Please contact us for all for major projects where you need seasoned expertise, quality workmanship and very professional contractors from start to finish. With over 80+ years in construction, we pride ourselves in the upmost quality, professionalism and expertise! Please call us for your next project.


Avatar for Swaevyr Engineering

Swaevyr Engineering

No reviews yet

Swaevyr Engineering

No reviews yet
3 years of experience

Swaevyr Engineering stands as a premier engineering & design firm that excels in providing tailored solutions across a diverse array of sectors & utilities. We go beyond traditional consultancy by also offering advanced Computer-Aided Design (CAD) drafting services across various industries. Our expertise extends across fields, including utilities, construction, traffic control, security, fire protection, and beyond. We are defined by a commitment to precision and excellence to each of our clients for every project. Choose us as your reliable partner for those seeking innovative designs and unparalleled drafting services.

Swaevyr Engineering stands as a premier engineering & design firm that excels in providing tailored solutions across a diverse array of sectors & utilities. We go beyond traditional consultancy by also offering advanced Computer-Aided Design (CAD) drafting services across various industries. Our expertise extends across fields, including utilities, construction, traffic control, security, fire protection, and beyond. We are defined by a commitment to precision and excellence to each of our clients for every project. Choose us as your reliable partner for those seeking innovative designs and unparalleled drafting services.


Luna Construction

No reviews yet

Luna Construction

No reviews yet

General contractor in the southern California region with over 20 years of experience in the construction industry. With experience in completing any size project from beginning to end in the residential and commercial sectors of construction such as new construction, remodeling, and tenant improvements.

General contractor in the southern California region with over 20 years of experience in the construction industry. With experience in completing any size project from beginning to end in the residential and commercial sectors of construction such as new construction, remodeling, and tenant improvements.

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Structural Engineering questions, answered by experts

Structural engineers typically conduct inspections during a home sale or renovation, looking for signs of structural damage in various structures throughout the building, such as load-bearing walls, joists, beams, roofing trusses, foundations, and chimneys. Some of the warning signs that structural engineers check for include:

  • Dry rot

  • Infestation

  • Shifting or cracking foundations

  • Erosion

  • Water damage

  • Sagging, shifting, or damaged walls, ceilings, or roofing support

Structural engineers are necessary for projects involving alterations to load-bearing structures, foundation work, and compliance with safety standards. This includes home expansions, retaining walls, and significant repairs that impact a property's integrity.

Their expertise in identifying potential problems early and implementing durable solutions safeguards your home’s integrity.

Any issue that affects the structural integrity or soundness of a home is considered a structural issue. In addition to foundation cracks, other signs of structural issues include roof leaks, bowing walls, sloping floors, gaps around windows and doors, and more.

The 10 10 rule describes the formula most contractors use to determine how much to charge for a job. Allowing for 10% overhead above the total projected cost to do the work and 10% profit sets a contractor up for success, even if there are delays or other problems on the project. This formula isn’t a hard-and-fast rule, but it is a ballpark figure to begin with when estimating your expenses on a job.

The Diamond Bar, CA homeowners’ guide to structural engineering services

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