I felt it was important to share our experience with JZ structural as I ultimately went with them…read moregiven their high Yelp reviews. However, my experience was negative to say the least. Ellen was responsive initially, but this was only until they received payment. After this, trying to get a response was like getting blood from a stone: close to impossible. My architect had asked Julian, the engineer, if he could draw a rough mock up before he put together a full set of plans (to which he agreed). We never got this, despite checking in multiple times, and instead, it was only right upon the 'deadline' we had provided for the project that we received a full final set of plans. This was disappointing. The plans themselves were riddled with errors: it seemed like a lot of copy / paste work rather than careful attention to detail. The wrong county was listed, and certain structural details were copy pasted from the wrong city, which my architect had to point out. We had around 30 local contractors look at the plans, as well as two peer reviews of the plans from other licensed structural engineers, and the feedback was that it had been over-designed (consistent with one of the other yelp reviews). After multiple emails attempting to get Julian (the engineer) on a call, he was incredibly defensive, and rude. It was at this point, I was appalled that he would speak to a client like this, so decided to cut ties with this company and use another structural engineer instead. If you are in absolutely no rush, and have no concerns about over-design: perhaps this company will work for you. But for our residential project, this was one of the worst experiences I have had with a "professional" service, and I want to warn others.

Working with Ellen, Julian, and others from JZ Structural was great. They were extremely…read moreresponsive. They also diligently worked with the city, project manager, and other contractors to get the job done. Ellen and Julian also provided a very personal touch with guidance in hiring contractors, materials to use for the project, and design. They explained everything to us in detail and were always available to answer any questions and address our concerns. Overall, JZ Structural provided us with a great experience. Would highly recommend getting in touch with them if you need help with building and large renovation projects.

Chris came to advise and measure for a drainage system and was incredibly knowledgeable and…read morethoughtful about the project. His expertise and experience is valuable to us. In addition, we have to commend him for previous work. He is completed on our property on foundation work, including a retrofit. We will always have Chris come to the rescue. Way to go Chris.

I went with Alpha Structural for my seismic retrofit and was not disappointed. They were openly…read morecommunicative with me throughout the whole journey as I had a lot of questions along the way. The whole team was hands-on deck in going over any concerns I had while providing updates through every step of the process. On the day of the installations, supervisor Eny and his team of Ronaldo, Daniel, and Casimiro did a great quality job in less time than I thought it would take. I'd highly recommend this company for any foundational projects you may have! At least get into open communications with them and you'll learn a thing or two.

Francisco helped me with a small structural issue in my new home to pass an electrical inspection…read more His communication was prompt and thorough, and he was incredibly friendly and reasonable. The city was satisfied with the end result - thank you! We'll be back!

Fransisco and team did a fantastic job on our vaulted ceiling project. The on site inspection was…read morereasonably priced, and becomes a credit if you opt to get full drawings done. We wanted three walls removed and our 8ft ceilings vaulted to 11ft. He spent about 4 hours on site and covered every square foot of our home to make sure he had all the necessary dimensions, pictures and details in order to make an assessment. He presented three options to me for vaulting, discussed pros and cons of each and left me with a digital packet of all of the notes and pictures he took. The turn around time for drawings was one week and required one re-submission to the city with a minor note correction. Overall we are thrilled with the vaulted ceilings which would not have been possible without FJ engineering.

I didn't have a great experience with ProStruct. The manager who handled my case, Irvin, was nice…read moreenough, but otherwise, I would advise looking elsewhere. I specifically requested a civil engineer to look at the drainage situation at our house, along with the waterproofing at our exterior doors. Their web site states that they have civil engineers on staff, and I therefore thought they'd be able to help. In my case, however, they sent a structural engineer and he didn't have a whole lot to say and was apparently unable to comment with any level of detail about the concerns I had regarding drainage or waterproofing. It was honestly just an $1100 waste of time.

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 used Dary Engineering for Architecture plans and they did a wonder job. Diaa was very…read moreprofessional and paid close attention to detail. These were my first set of plans that I had drawn up by an Architect and I was very impressed. We've even gotten compliments from contractors on how well the plans were. We summitted our plans to the City and they only needed minor corrections. He provided the corrections in a timely manner and they came back approved in a week. We would like to thank Diaa very much for the outstanding service that was provided. Their pricing was also very reasonable and we are happy that we found them. We definitely hope to use them again in the future.

Working with Dary Engineering was a great experience! They completed my blueprints for my ADU! They…read morewere very professional, communicated very well, and even made sure I had pointers on passing future inspections! Diaa is very knowledgeable in his field of engineering and building! I truly appreciate his welcoming personality! Looking forward to working with Dary Engineering on my next project!

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!

One of the best architectural and engineering company in LA. I have done a few projects with them…read more All the project I have done it's really convenient and nice open floor design, they know how to do it to be convenient to live in it house with all the features you need in the house and a lot of times you don't even think about it but it's there. The drawing is very detailed if you want to find the measurements, it's there in front of you compared to other architects that cannot find any measurements Another best thing is that they are always there every time you call them. You don't have to hustle to be in touch with them for any questions you have. I highly recommend them

I recently hired this company for foundation repair and earthquake retrofitting at my home. Their…read morepricing was reasonable, and the entire process was handled with high efficiency. Thanks to Guillermo's crew, Ignacio, and Skyler for the hard work. They also sent over the project photos via email afterward for my records. Very professional--highly recommend!

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.

We came to Jason for our big project that included a 2nd floor addition, a 1st floor remodel, and…read morean ADU. He created a great plan for our home and ADU that enabled a fast approval process with the city and the architect/contractor. Jason communicated well and constantly throughout the process. He made sure any questions or concerns were addressed and took the time to explain his process. I would highly recommend him to any one and would definitely hire him again for any projects.

Jason was very responsive and understanding of our projects needs. He was able to make structural…read morechanges that were easily approved by the city. Not only that, but the plans were easy to understand for the contractors, as they did not require additional supervision. I highly recommend Jason and Cornerstone as the service they provided was excellent and efficient.

Southland Civil Engineering helped my company navigate one of the most challenging projects in our…read morecompany's history. Their team assisted in resolving b-permit issues, plan checks, zoning administrator filings and more. Their knowledge and experience was critical to solving the many problems this project had being a broken development in the city of Los Angeles. Our permit expediter said we wouldn't have gotten building permits without Bryan Lopez's knowledgeable and firm handling of the LA plan checker on our last set of permits. Since the scope of the project was difficult to define, we mostly worked on a T&M basis. The billings were always reasonable based on the work being done. Also, the team was always responsive to our needs and deadlines. These guys are trustworthy professionals and can handle the most challenging projects.

I enjoy working with Bryan. His efficiency/timeliness in handling modifications to plans/etc. is…read moreunmatched. Southland has been a staple in the Southern CA land development industry and for good reason. We look forward to working with them on future projects.