1. Alpha Structural

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Sunland, CA

Alpha Structural

4.8 (826 reviews)
Open • 8:00 am - 6:00 pm
Updated over 3 months ago

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Response time

10 minutes

Response rate

100%

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Services - Alpha Structural

Deck construction

Guest house or ADU construction

Manufactured home construction

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Recommended Reviews - Alpha Structural

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Reviews With Photos

Nearly there!
Evan H.

Aaron, as before in 2019, was very helpful and quickly determined the problem. The cracks in my interior walls and some on the exterior were being caused by a corner of the building that is slowly losing support. With his help I will be able to get our HOA to address the issue before it becomes a real problem. The info he provided for me will be invaluable in getting the ball rolling! Thank you again!!

After the job was done.

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1 month ago

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9 days ago

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8 days ago

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2 months ago

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9 months ago

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8 days ago

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26 days ago

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2 months ago

Very helpful, knowledgeable, and professional. I had a great experience and would highly recommend them!

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26 days ago

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3 months ago

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30 days ago

Great, honest people with integrity! No upselling. Informative, experienced - the best.

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4 months ago

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3 months ago

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3 months ago

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4 months ago

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7 months ago

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1 year ago

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1 year ago

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2 months ago

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5 months ago

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11 months ago

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1 year ago

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6 months ago

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6 months ago

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7 months ago

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2 months ago

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1 year ago

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5 months ago

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1 year ago

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Page 1 of 21

Ask the Community - Alpha Structural

Looking to add adjoining wall on the inside of our far end wall of the backyard. The other side is the neighbor's backyard. I called and was told cost $100-$500k. Yard is 50 ft wide. Is this avg? what is the bulk of the cost?

Hi Sol. We had to get a survey done, then soils testing. Lumber and other materials costs are high. The crew had to dig three 14-feet deep piles for the caissons. Every step seemed to require another payment. Our "sister wall" was about 50… 

How is the warranty the foundation work?

How much do you charge to inspect a retaining wall just to advise if safe for now and how fast could you get it done?

Hello! Sorry for the late response to this! Are you a homeowner or is it a property you are looking to purchase or sell? We do have a $350 fee for any real estate transactions, but we do free inspections for homeowners as long as it is within our… 

View All 5 Questions

Review Highlights - Alpha Structural

“The next day Brad sent a detailed Observation Letter that documented his findings and outlining solution.”

Mentioned in 77 reviews

Read more highlights

Structural Engineering & Construction - Two-story ADUs... Architectural design concept that we will provide structural engineering services.

Structural Engineering & Construction

(42 reviews)

Fairfax

Add me to the growing list of folks who are grateful to Samy!…read more He came well referred from local real estate professionals, but I didn't quite know what to expect. As a home buyer in RPV, I was looking to get unbiased, sound engineering advice about the foundation of the home I am buying, and that's exactly what I got. Samy is skeptical of contractors who sell repairs that "put lipstick on a pig" as he put it, and walked me through the proper approach to address the risks and root causes (positive connections post to pier, drainage). I am so grateful to have found you, Samy. Thank you for the invaluable advice.

This is the person to call. I am a property manager and I had a tenant send me some pictures of the…read morewall in the back crumbling after a rain storm. I only need a repair and I don't have as much experience as I would like to address this. I took to YELP in an effort to find a smart kind human to help me understand what to do. Many of the men just said I can't do it for less than 4,000-3,500$. Not explaining the plan to me at all and only concerned about how much I could spend. Then I got on the phone with Sam. Not only was he incredibly helpful explaining to me how the wall could be fix and what would be needed. Design work, permits, etc. He also told me how do to it so I wouldn't need a structural engineer for it. Which completely blew me away. Not only was the man kind enough to go over what I needed to do but he told me how to do it so I wouldn't even need to hire him! What an incredible human! I will save his number in my phone and reach out any time I or someone I know needs his service. I highly recommend reaching out to this very smart and intelligent person to guide you along your journey. Thank you Sam!

STEN Engineering - STEN Engineering

STEN Engineering

(36 reviews)

I scheduled a consultation with Eugene from STEN Engineering to discuss two very different…read morestructural issues at my house, and I was extremely impressed. The first was figuring out how to realign a very complicated roofline so that rainwater would channel properly. The house has been built and added onto in stages over roughly 100 years, so every addition and alteration made the roofline more complicated and less cohesive. I had literally spent hours sitting on the roof trying to figure out a workable solution. Eugene looked at the situation, thought it through for about 10 minutes, and sketched out an option that simply would never have occurred to me. It was practical, elegant, and made immediate sense. The consultation was some of the best $400 I've spent. The second issue was understanding how well the house is braced for earthquakes and how the existing foundation works structurally. Again, Eugene combined a strong engineering mind with real-world practical experience and explained everything in a way that I could actually understand. I almost never take the time to write reviews, but I was impressed enough that here I am writing one. Eugene is smart, thoughtful, practical, and very good at explaining complicated structural issues in plain English. I would absolutely call him again.

Highly recommend sten engineering, knowledgeable about all the regulations in the LA area!…read moreEfficient and professional! I would use them again!

FJ Engineering Design - Before, low 8ft ceilings.

FJ Engineering Design

(78 reviews)

5 Stars! I highly recommend FJ Engineering. They served as the structural engineer of record (SEOR)…read morefor our major single-family home remodel and addition. Their expertise literally saved our build from a very poor framing contractor. The contractor caused massive delays due to non-existent planning, mismanaged materials, and repeatedly misinterpretation of the structural stamped drawings, including framing ceiling joists improperly and installation detail errors. Fortunately, the owner, Francisco Garcia, stepped in with efficient practical solutions for every single error while maintaining code compliance and structural integrity. Francisco was incredibly patient, performing comprehensive hold point inspections, clearly explaining details to help contractor's rework and omissions. He accommodated last minute inspection requests time and time again. Now that framing is officially signed off by the city, we have absolute peace of mind. Francisco and his team are the communicative, professional experts you want in your corner, whether for a remodel or new construction. FJ Engineering will contribute to the success of your project through the value they bring from initial development of structural plan drawings and his diligent oversight through final sign-off.

What can I say other than Francisco is top shelf! A true professional and at the core passionate…read moreand caring about your project. He helped me with an undefinable situation at my home with some concrete. My home is over 90 years old. The construction has been wonky at best. Francisco took his time to help me understand some foundational work. His positive attitude, promptness, and shear humanity sets his company apart! Thank you Francisco I will never forget your generosity!

GK General Construction - After - bedroom

GK General Construction

(119 reviews)

I've worked with Gary on four completed projects and am currently working with him on a fifth,…read morewhich probably says more than anything else I could write. Three of those projects were on a 1920s Spanish triplex, where we modernized all the units while preserving its original character, including converting a three-car garage into an ADU. We also fully renovated a mid-century ranch duplex and are currently converting its garage into another ADU. Gary's extremely easy to work with, communicative, reliable, and cares about the quality of his work. He'll give you his professional opinion when needed, but he listens to what you want and never tries to push his preferences over yours. His subs are solid, his pricing is reasonable, and he's always been accommodating when little extras come up outside the original scope. After five projects together, I wouldn't hesitate to recommend him. Finding a contractor you trust and actually enjoy working with isn't easy, and that's why I keep hiring him.

This is the second house we've had renovated by Gary. This house was outdated and unattractive but…read morewe knew it could be special. We are always happy with Gary's work. He is a competent professional and trusted contractor with a solid team of subcontractors who have been doing this work for decades. With this renovation, we brought our 1912 Craftsman bungalow down to the studs. This was a full-gut renovation that involved replacing all mechanicals, drywall, new bathrooms, new kitchen and doing a primary bath addition. With Gary's construction expertise, we were able to restore the home while maintaining its original charm and bring our design to life. Some of Gary's many contributions included framing a new tray/drop ceiling, installing custom window and door casings to match the originals. He also rebuilt the front porch railings and reinforced the porch ceiling so it would accommodate a porch swing. He built our backyard studio shed in just a couple days and it's adorable. While nearly everything is new, you can't tell. And that is a compliment to the quality of craftsmanship. Gary doesn't cut corners and it shows. It is very important that you trust your contractor and that they have integrity and do what they say they are going to do. Experience is also very important. Gary has all of this. We will definitely be calling Gary for the next house we buy. We can't recommend him enough.

Alpha Structural - contractors - Updated November 2026

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