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    Verified structural engineering services reviews

Find Structural engineers in West Covina

Avatar for Alpha Structural, Inc.

Alpha Structural, Inc.

4.67(
231
)
Approved Pro

Alpha Structural, Inc.

4.67(
231
)
Approved Pro
Customers say: Super punctual
196 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 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 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 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
72 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

5.00(
5
)
Approved Pro

Pac Sands Corp

5.00(
5
)
Approved Pro
112 local quotes requested
8 years of experience

We specialize in home designs, structural engineering, and architectural plans 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!

"Muy buen servicio y excelente compania "

Ernesto M on August 2025

We specialize in home designs, structural engineering, and architectural plans 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!

"Muy buen servicio y excelente compania "

Ernesto M on August 2025


Avatar for Othniel Design Realty

Othniel Design Realty

4.50(
2
)

Othniel Design Realty

4.50(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Othniel Design Realty (ODR) has been service for 13 years and specializes in design and inspections with certified home inspectors, general building contractors, and registered engineers that can offer you the most comprehensive drawings and reports for your home. For design, our main focus are on Accessory Dwelling Unit, Single Family Residence, Multi Family Residence, Coffee Shop, Restaurant, Office, Gas Station, and Food Mart; for inspections either you are Home Buying needing a home inspection for your lender transaction, Home Selling wanting a home inspection for your broker to increase the sales price, or Home Owning needing a home inspection for you to find repair options, ODR will provide for you with the best solutions for the most affordable design and inspection fees. For other services, we also provide forensic and construction consultations to help with your home improvement projects. We serve Los Angeles, Orange, Riverside, San Bernardino, San Diego, and San Jose Counties and able to travel to other counties with the right price. If you found what you need with ODR in making your dream home a reality, book with us today by directly contacting our hotlines at 8052356191 or [email protected].

"I recently had the pleasure of working with Othniel Design Realty, and I am thoroughly impressed by the service and expertise provided. From the very start, they exhibited professionalism, punctuality, and a keen eye for detail. They conducted a comprehensive inspection, meticulously examining every aspect of the property. They explained each finding clearly, helping me understand both the immediate concerns and potential future issues. This level of transparency and expertise truly sets them apart. They were incredibly patient with my numerous questions and took the time to ensure I was fully informed. Their commitment to quality and thoroughness gave me confidence and peace of mind. If you are in need of a trustworthy, knowledgeable, and detail-oriented home inspector, look no further. I highly recommend them to anyone seeking a top-tier professional in the field."

Hugo C on December 2024

Othniel Design Realty (ODR) has been service for 13 years and specializes in design and inspections with certified home inspectors, general building contractors, and registered engineers that can offer you the most comprehensive drawings and reports for your home. For design, our main focus are on Accessory Dwelling Unit, Single Family Residence, Multi Family Residence, Coffee Shop, Restaurant, Office, Gas Station, and Food Mart; for inspections either you are Home Buying needing a home inspection for your lender transaction, Home Selling wanting a home inspection for your broker to increase the sales price, or Home Owning needing a home inspection for you to find repair options, ODR will provide for you with the best solutions for the most affordable design and inspection fees. For other services, we also provide forensic and construction consultations to help with your home improvement projects. We serve Los Angeles, Orange, Riverside, San Bernardino, San Diego, and San Jose Counties and able to travel to other counties with the right price. If you found what you need with ODR in making your dream home a reality, book with us today by directly contacting our hotlines at 8052356191 or [email protected].

"I recently had the pleasure of working with Othniel Design Realty, and I am thoroughly impressed by the service and expertise provided. From the very start, they exhibited professionalism, punctuality, and a keen eye for detail. They conducted a comprehensive inspection, meticulously examining every aspect of the property. They explained each finding clearly, helping me understand both the immediate concerns and potential future issues. This level of transparency and expertise truly sets them apart. They were incredibly patient with my numerous questions and took the time to ensure I was fully informed. Their commitment to quality and thoroughness gave me confidence and peace of mind. If you are in need of a trustworthy, knowledgeable, and detail-oriented home inspector, look no further. I highly recommend them to anyone seeking a top-tier professional in the field."

Hugo C on December 2024


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

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Structural Engineering questions, answered by experts

Structural engineers can perform various inspections on different structures in your home. These inspections usually include a report detailing the engineer’s findings and recommendations for repairs so you can determine your next course of action for repairs, replacements, or new builds. Some of the most common structural engineering reports include:

  • Full home inspection: $350–$1,000

  • Foundation: $300–$800

  • Load-bearing walls: $300–$1,000

  • Roof: $150–$600

  • Chimney: $200–$500

No, it’s not legal for unlicensed individuals to conduct structural calculations for buildings or building repairs. Not only do licensing requirements prevent DIYers from tackling this project, but mistakes can also be extremely dangerous and put your property and anyone inside or near it at risk of severe injury or even death. You should always hire a licensed and certified local structural engineer to make structural calculations.

Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.

Yes, ceiling joists are typically load-bearing. However, their primary function is to support the weight of the ceiling and loads applied to it, like lighting fixtures and ceiling fans. They can also help support the roof, especially if they’re part of truss systems. Remember, the load-bearing capacity of ceiling joists depends on the material, size, and space between them. 

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 West Covina, CA homeowners’ guide to structural engineering services

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