1. Delta Engineering & Construction

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Irvine, CA

Delta Engineering & Construction

5.0 (1 review)
Open • 7:00 am - 5:30 pm

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Services - Delta Engineering & Construction

Balcony addition

Deck construction

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Alpha Structural, Inc. Orange County

Alpha Structural, Inc. Orange County

(51 reviews)

15 years ago I had done a full remodel and built out the upstairs bathroom to include a jetted tub…read more Recently, after using the tub (LOTS of weight), the entire side of the room began popping and creaking. I knew enough about construction and engineering to seek professional input and reached out to Alpha Structural. They were pretty booked out, however when I explained the gravity of the problem (people in a home office below the tub area), Franchesca worked her magic and got me an appointment in 2 days. Damien showed up promptly at the 9 Am start time. We walked around the property while I explained my concern, and noted several other possible issues. Damien was extremely through, asking numerious questions and providing input and advice along the way. He took the time to explain causes for the different issues and was personable, professional and extremely helpful. Luckly for me, my problems traced back to normal settling, a recent solar panel and roofing job and normal aging. It's no wonder why Alpha has so many 5 star reviews- They absolutitly deserve every one of those. I only wish other businesses were as well run, and with such amazing people like Damien and Franchesca.

I bought a house that is 96 years old. For a house this age, it is in very good condition. It just…read moreneeds some TLC to reach its full potential. One issue, however, was that there was differential settling. This is where Alpha Structural comes in. I feel the entire process went well. Ken came out to survey the situation. We had a good conversation and came to consensus on the scope of work; and I feel I received a fair proposal. David Gonzalez (supervisor) was good at communicating once the job started. He provided an accurate timeline for Alpha's part of the rehab project (so that I could schedule subsequent contractors). When demolition revealed new things, I was informed. And he provided a good debrief when work was completed. Matteo and Dennis spent three days on the project. Whenever I visited the worksite, they were busy. I don't think people realize what is involved when re-leveling a house. These two demonstrated a lot of skilled work. I (and my neighbors) also appreciate the company's "clean as you go" process. Regardless of the work happening, the worksite was always neat. Going forward, I feel I have a good (new) baseline understanding of what is happening within my house.

OConsulting - New Construction

OConsulting

(21 reviews)

We hired OConsulting because we wanted to remodel our kitchen, laundry room and living room. Our…read moreremodel design included removing (2) walls and adding (2) windows in the kitchen, expanding the laundry room, and raising a sunken conversation pit in the living room. Upon initial contact we emailed details of our project and then had a video conference with Fredy and Nanak to discuss the project in more detail along with their services. A contract for the work was issued and signed and Fredy came out for a site visit to begin. Structural and mechanical engineered plans were then developed with a set of preliminary drawings for our review. We discussed a few adjustments we wanted to be made to the design and then finalized the design details. A stamped set of mechanical and structural engineered plans were issued and submitted to the city via OConsulting on our behalf for the city's review and approval. The engineering and plans were so well done that the only request the city had were minor verbiage to be added to the front page of the plans indicating wind speed of the area, that the property is within an HOA and that no oil drilling is located on the property. With the addition of the specified verbiage to the plans the city then approved the stamped set of plans and the building permit was successfully issued. Our experience with Fredy and Nanak at OConsulting was a pleasant experience. Both Fredy and Nanak were personally a pleasure to work with. They answered all of our questions, listened well to our design goals and vision, were attentive to our project and because of their highly skilled knowledge and skillset they made it possible for us to proceed with beginning construction on our remodel. We are very pleased and grateful for the professionalism of the service we were provided with and are very happy to recommend OConsulting. Thank you to Fredy and Nanak for the excellent service you gave to us and for making our remodel visions possible.

We used Fredy to help remodel our 100 year old beach cottage. It needed to be retrofitted to…read morewithstand an earthquake some other minor details Our initial meeting went great I thought. We laid out what we wanted and Fredy told us what we could and couldn't do. He told us he could have the plans done pretty quickly and we were happy with how it was going until.. We wanted to add a skylight and asked Fredy about it. He quickly said we couldn't and gave no real explanation why. So we did a little research, asked another engineer and found out it was possible. When we called to ask Fredy about it he YELLED AT MY WIFE and basic said not to question him. It seemed Fredy didn't want to do the extra work to look into it. He ended up adding it after I had another conversation with him. It's not over.. Once we finally get the plans and turn them into the City for review they get sent back to us. FREDY MESSED UP NORTH AND SOUTH! It then took him over 2 weeks to correct it! THIS COST US OVER 10K DOLLARS because the project was held up and we had to keep paying the mortgage FREDY MESSED UP OUR PLANS 2 MORE TIMES AND COST US OVER 20K DOLLARS IN MORTGAGE PAYMENTS AND MONTHS OF IDLE TIME Please don't be fooled by the 5 star reviews. If you are in the market for a good, timely and competent engineer I suggest you look elsewhere.

Affinity Design Group - Detailed, Permitted Plans in an Efficient Timeframe.

Affinity Design Group

(31 reviews)

I was introduced to Daniel at Affinity Design Group through my general contractor and designer…read more Daniel prepared the architectural and structural plans and calculations for a room addition project at my home, which included expanding a second-floor bedroom and office space and enclosing an exterior courtyard to create a new foyer. Daniel was very easy to work with throughout the entire process. He was responsive, professional, knowledgeable, and kept the project moving efficiently. The City had only very minor corrections to his plans, and Daniel addressed all of them in less than a week. His pricing was fair, but what really stood out was the quality of his work and his responsiveness. I am extremely happy with the final outcome and would highly recommend Daniel and Affinity Design Group to anyone looking for professional architectural or structural design services.

Daniel has been so amazing and up front with his structural engineering advice. I came looking for…read morea second opinion on whether or not a kitchen pantry wall could be safely removed. I haven't begun construction yet so i wasn't able to provide drywall-less photos and was looking for a quick online opinion. Daniel graciously offered his professional expertise through photos and videos i provided versus immediately trying to schedule me for an in-person consultation. He even stated he'd prefer to see videos/photos before scheduling an in person consultation to see if it was even necessary. I will definitely be seeking his services when time comes for construction. 10/10 initial impression and will definitely hire for services as needed.

Delta Engineering & Construction - contractors - Updated October 2026

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