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Avatar for Alpha Structural, Inc.
Alpha Structural, Inc.
4.6(
241
)

Serving San Gabriel, CA and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Emergency services offered

"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!!"
Basement Addition
Basement Expansion
Caisson Supported Retaining Wall
Cantilevered Deck Design Build
Deck Expansion and Slope Failure with Retaining Wall

+315

Response time10 hrs
Response rate96%
27 neighbors recently requested a quote
Avatar for RCS Engineering Services
RCS Engineering Services
5.0(
3
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2018

Offers commercial services

Customers say: Quick response

"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!"
Slab On Grade - Carport
Foundation Underpinning
Existing Wall
Existing Wall/ Form Work
FOundation Underpinning

+15

Response time8 hrs
Recommended by100%of homeowners
Avatar for AAA Engineering Design
AAA Engineering Design
4.1(
9
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

With over two decades of experience, we provide structural engineering services for residential and commercial projects throughout California. We specialize in timber, steel, concrete, and CMU structural design for public and private sector developments. Our approach focuses on safety, constructability, cost efficiency, and full code compliance.\nOur experience includes shopping centers, office buildings, retail spaces, tenant improvements, industrial facilities, new homes, additions, remodels, ADUs, retaining walls, foundation systems, seismic retrofits, and structural upgrades. We work closely with owners, architects, contractors, and local agencies to deliver practical engineering solutions with fast turnaround times and reliable support from design through permitting and construction. Customer satisfaction, clear communication, and dependable service are the foundation of our business. Contact us today to discuss your project.

3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos
3 Story 4 Condos

+5

4 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Alpha Omega
Alpha Omega
4.0(
116
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2003

Free estimates

Small jobs welcome

"If you need a Structural Engineer you call Ehab at Alpha Omega hands down! He is knowledgeable, professional and easy to do business with. Thank you"
Plot Plan for Auto Dealer
Auto Body Shop
Response time10 hrs
Response rate86%
71 neighbors recently requested a quote
Avatar for JZ Structural, Inc.
JZ Structural, Inc.
5.0(
3
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2010

Free estimates

Small jobs welcome

JZ Structural, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

ADU
ADU
ADU
ADU
ADU

+38

Response time2 days
Recommended by50%of homeowners
AAA Engineering Design
4.1(
9
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2007

Free estimates

Small jobs welcome

"-It was about 2 weeks ago that I met Mr Sal and he cam to see the project site as well to take the measurements required next day later he immediately scheduled an appointment with my local city of Westminster to find out what was exactly requested soon after he left it took only 3 days for him to develop all the structural calculations for the mother-in low quarter and the 2 car garage I was extremely pleased for his professionalism and fast expedited work. The quotes that I was provided from him were by far quite fair than the other I had interviewed prior of meeting him. Mr Sal truthfully went the extra mile to make it happen for what I was looking for. I therefore would Highly recommend to anyone in need of such works to look for Mr. Sal from AAA Engineering Design, you will never be disappointed. I want everyone to know that he is truly a great asset to our community. Thank you John Trimarco"
Foundation Plan
Roof Framing Plan
Response time3 hrs
Recommended by66%of homeowners
Avatar for Amitygale Design
Amitygale Design
5.0(
6
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I hired AmityGale for my structural engineering home remodel project. I was very pleased with the professionalism and communication . Pricing was competitive and I will definitely recommend them. Thanks again for making this a smooth process in what could have been a stressful experience."
Response time2 days
Response rate91%
4 neighbors recently requested a quote
Terra Nova Engineering & Design LLC
5.0(
1
)

Serving San Gabriel, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

11 neighbors recently requested a quote
Avatar for New Beginnings Engineering Inc.
New Beginnings Engineering Inc.
4.4(
38
)

Serving San Gabriel, CA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Jonathan responded to my request for a structural engineer within an hour. He was very professional and came to house to look at the project. Both Johnathan and Trina responded to my texts, calls and emails. Although this wasnâ t a large job, Jonathan gave me a bid and the completed project in two weeks. I wasnâ t sure who to contact, so I used Angi - Home Advisor and was connected with New Beginnings Engineering. I definitely recommend them if you need a structural engineer."
New Home Construction
Unique Detail Expertise
Luxury Homes
New Home
Steel and Wood Combinations

+24

Response time2 days
Recommended by90%of homeowners
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Structural Engineering questions, answered by experts

The National Association of Home Builders requires repair of any foundation crack of more than one quarter of an inch, although local regulations may vary. In general, any visible crack that is growing in size, allowing water through, or that you have just noticed, is a good reason to call a structural engineer. Cracks can be a sign of a sinking foundation, so an inspection is a good idea for your peace of mind.

Foundation cracks that are 1/8 inch wide or less, aren’t uneven across the gap, and don’t continue widening over time are usually just normal settling cracks and don’t suggest structural issues. Horizontal cracks and stair-step cracks on foundation walls, any cracks that continue widening, are wider than 1/8 inch, or where one side juts out beyond the other, are often indicative of structural damage.

All foundations have footers, including monolithic slabs. In some cases, the foundation itself acts as the footer, as in the case of a floating slab and a monolithic slab. With a monolithic slab, the footers—which are just the bottom-most portion of the foundation that distributes loads down to stable soil—are a part of the main slab and are constructed with a single pour.

Yes, walls on the top floor can be load-bearing if stacked on the floor’s foundation.

The easiest way to tell if a wall is load bearing is to check if it’s an exterior wall or if it runs perpendicular to the joists above and below it (or parallel to beams). Exterior walls are almost always load-bearing, and walls that run under beams or parallel to them are also usually load-bearing. There are exceptions to these rules, and walls that don’t fit into these categories can still be load-bearing. If you’re unsure, hire a structural engineer to look at your home to assess whether or not the wall is structural.

The San Gabriel, CA homeowners’ guide to structural engineering services

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