Called for a consult after getting two very different quotes for foundation work after buying a new…read morehome. Jeff answered quickly and made time for our residential consult the next day. Arrived on time, was very polite, and very detailed in going over his assessment of our home and even the proposals the other contractors sent us. For significantly less money than the work proposed, he was able to put us on the right track and avoid costly work that wouldn't have addressed our principal concerns. Will definitely be calling Jeff again if we need any future structural work.

Jeff came out on short notice and gave me expert advice on my foundation in need of repair. I…read moresought out his engineering expertise, as I wanted to know how to get it fixed the right way (not too much, not too little), before contacting contractors for work. I had a few check it out before I saw him during escrow and they all had wildly different opinions. He patiently broke everything down to me in terms I could understand, and paused to check understanding along the way which I appreciate. I recommend Jeff highly for this, thanks!

Fifteen stars for Structural AF! Five for Arsen and Five for Sam and Five more for Meri. I was in a…read moredifficult situation and needed building plans on cringingly short notice. Their work was quite impressive. They were transparent and explained a lot of technical things to me in a way that was easy to follow. The response time was very fast and the access to speak to engineers directly was remarkable. Their prices are more than reasonable and I will most certainly continue to work with Structural AF.

I have worked on multiple projects with Structural AF. They have always been professional, easy to…read morecommunicate with, quick, and thorough. They are fantastic!

I worked with Prostruct Engineering on a residential interior wall removal project. I was very…read morepleased with their professionalism and services. The project manager, Nithin and project success associate, Joshua were always in the loop of communication. In the process, Nithin was very responsive to answer questions and make necessary drawing changes according to the requests. The project was done in a timely manner with reasonable cost. Overall I was impressed with their performance, quality, schedule and cost!

We had a unique issue which required immediate attention. ProStruct was the only licensed…read morestructural engineering firm that responded quickly and that was able to perform the services in the timeframe we needed. Irvin and his colleagues took the time to walked us through the steps under difficult communication circumstances. We paid for the services but unfortunately, we were ultimately unable to use their services having to cancel 2 hours before they were going to execute the agreement. They were gracious enough to fully refund our payment. They were very understanding, and we will work with them in the future if the need arises.

I contacted Alpha Structural for concerns about the recent development of uneven flooring…read morethroughout the house, and today they sent out Ken Crown for a free inspection. After pointing out the areas of concern to him, Ken offered a couple non-serious possibilities for the phenomenon, and was able to assure me there was no threat to either the structural integrity of the house or the cement slab foundation - and pretty much bottom-lined it, saying there's really nothing to worry about. I really appreciated Ken's easy-going demeanor, and sensed zero interest in him trying to sell me a repair service that wasn't needed. Ken is just an honest guy offering his experienced opinion - in no doubt, putting yet another homeowners' unwarranted concerns to rest. Would be nice If all companies sent inspectors who operated the same way as Ken.

No,! we called these guys out for some water mitigation and talk about egotistical know it all with…read morethe price four times more than the next guy. Terrible attitude and the office staff was just as bad or worse. After I told him I would never do business with them. I'm pretty sure they sold my information and now I have all kinds of people bugging me about similar jobs. Run from this company

This review is for 2020 work. We really enjoyed working with Nick at RME and he helped us design,…read morecalculate, and advise on removing a large 30ft load-bearing wall running down our house. Nick was instrumental in designing and pushing thru the designs with the city. He was very professional, clear and communicative in his emails and helped our contractor as needed with guidance to create a safe working environment. RME was also very transparent and reasonable in their fee structure. They billed me accordingly and made it very easy to understand what I was paying for; moreover, they invoice billing system was very easy to use. I've attached pics of the before and after of our project. I would highly recommend RME Structural Engineers.

From initial inquiry to site visit, communication was top notch. Nick is very responsive and…read moreknowledgeable expert to determine the structural concerns that I had in my home. Highly recommended to anyone needs structural expertise in Los Angeles area. Thanks Nick.

wanted to have an EBB retrofit done to strengthen my house, along with some necessary foundation…read morerepairs. I received quotes from a couple of companies, and while these guys weren't the cheapest, they were definitely the most knowledgeable and took the time to clearly explain how the repairs would be done. They completed the job in just two days and repaired two addional piers, and everything went smoothly. I do have a slight squeeze in one area of the floor in my raised home, and I'm currently waiting for them to come back and take a look at it. I know pier repair is not much complicated but their crew was professional and their price was reasonable. I would highly recommend these folks.

Great did an EBB with them. Andrew and his crew were top notch. Left the place cleaner then before…read moreand went above and beyond to communicate the process and plan. They took care of all the gov docs and got me scheduled for work three weeks after we decided to move forward. Had four quotes and Foundation Works came out in the middle and glad I went with them. I would definitely request Andrew be your foreman.

We hired Castillo Engineering for our remodeling project. Margarito and Paciano did a great job,…read morefinished the project on time and were always available to answer our questions. We have had a great experience so far. We know they will be supportive through the end of construction and will be there for us when needed.

First used Castillo Engineering six few years ago. They provided structural calculations for an…read moreADU. This time I asked for plans and calculations on a major interior remodel. The estimate for price and completion was more than fair. Plans required minor corrections during the construction process, as expected; but Castillo had an engineer call my contractor directly within 24 hours. Plan corrections were provided by next business day. All and all, a fair price with good customer service.

I found Sam through Yelp. At first, we were both not sure whether we will work together because he…read morelives more than 20 miles away from where I live, and I'm the type of person who is always skeptical about what I read on the internet. But now I'm very happy that Sam decided to take on the job and develop the structural calculations and drawings for removing a load bearing and shear wall at my Condo. The Project started in September 2025 with initial submittal of permit application package to the City. It went into construction about four (4) weeks ago and was successfully completed today (5/8). During the process, we developed trust for each other. I contacted Sam numerous times for questions, problems and consultations and he was always responsive. He and my architect friend worked together to develop the initial design but had to modify it to overcome a major obstacle that came up during the construction. He came over for construction observations and gave instructions to the contractor how to strap the beams together for maintaining structural integrity of loading and shearing. His fees were much lower than another builder whom I also got a bid from, and his approach to things was much simpler and yet conservative to that from the other firm. I told Sam, whether it is good or bad, I don't usually do reviews for others. But for him, I will do one. I'm thankful to have a great team of Sam (the engineer), my architect friend, and excellent construction crew to help me complete this project.

I am a homeowner and have only good things to say about working with Sam. He was recommended by…read moreour architect to do the structural drawings and observations for our renovation project. Sam is easy to work with, responsive and explains things very well - even to someone like me who doesn't have an engineering or construction background. He gave me a time frame that he needed to complete the drawings and stuck to it, which I really appreciate. He communicated well with my contractor and considered different options for how to approach the structural challenges. I've worked with other structural engineers over the years, and I found Sam to be the most professional. I've had engineers disappear mid-project, deliver weeks/months after they said they would, and/or bill more than initially agreed upon - not Sam. He does what he says. Definitely would use him again.