Constraction reviews in Sunnyvale, California

We reached out to Groundworks in Sunnyvale because we had concerns about water in our crawlspace. Shayan, one of their inspectors/assessors, promptly came to our house and did a thorough inspection. He was very thorough and patient in explaining our situation (he showed pictures and measurements of our crawl space) and our options. After his overview of our situation and viable solutions, we decided to work with Groundworks to put a triple sump pump in our crawl space. All in all, I am very impressed with Groundworks and by the thoroughness and friendliness of their staff.

UPDATE 2/17/26: After the first big rain of the season, my sump pump/perimeter trench operated flawlessly! Until it didn’t. I inspected and found a kink in the trench where water/dirt/mud is getting backed up and consequently overflowing. There’s also a beeping sound coming from the sump pump itself. I’ve called for a service appointment not once, not twice, but THREE times over the past month and a half. NO ONE HAS CALLED ME BACK!!! They guarantee their product for 20 years but what good is it if no one comes back to service when you have issues or even calls you back?!?! Meanwhile, my basement still floods and I’m out thousands of dollars.

Groundworks is awesome! Highly recommend 👍 Everyone from the office to the job site were professional and knowledgeable. The project was managed seamlessly from bid to completion. Angelo came to inspect and we worked on a solution for a new drainage/sump pump system because our crawl space floods during heavy rains. He was super informative and helpful. Office ladies and PM’s were on top of scheduling and super responsive. A couple days before the project, I was notified that Josh and his crew were on our project. They showed up on time, informed about the project, and were super nice! Not only that, Nelson’s crew showed up to help and all the guys completed the job in half the time! I’m super happy that I went with Groundworks, everyone was a pleasure to work with!

Jose, Vidal and crew were amazing! They explained the process every step of the way, were so friendly yet professional and went above and beyond to clean the site all throughout the process. I cannot say enough about the team. When you make an investment of this size into your home you want to feel confident in your decision and the work. Jose and team definitely made us confident in our decision to go with Groundworks. Highly recommend ⭐️⭐️⭐️⭐️⭐️⭐️⭐️

Rico and Robbie came to level the concrete slabs on my back patio which had been slowly receding for 40+ years. What they did was absolutely amazing. When they finished the patio looked brand new!!! I highly recommend them. Professional people with great personalities and very easy to talk with and tell me how everything worked.

Ashton with the service department came out and corrected my doors and the floors and I couldn't be happier with the results. Definitely ask for Ashton by name if you want top tier service, he wouldn't leave until everything was just right and I'm sure he will do the same for you. Really helpful thank you.

I recently had my home’s foundation repaired by Groundworks, and I couldn’t be more impressed with the crew—Ramon, Enrique, and Michael. From start to finish, they were professional, courteous, and clearly took great pride in their work.

Ramon, the job foreman, was outstanding in his communication. Every morning he took the time to explain what work was planned for the day, and each afternoon he provided a clear update on what had been completed. That level of transparency and organization made the entire process smooth and stress-free.

The workmanship was excellent, and it was obvious that this team cares deeply about doing the job right. Thanks to their skill and professionalism, the project went off without a hitch and finished earlier than originally estimated.

I can’t thank Ramon, Enrique, and Michael enough for their hard work and dedication. Kudos to the entire Groundworks crew—you truly exceeded my expectations! - Rene L.

Cody Wellner provided us with the quote; I love his honesty, expertise, and a genuine passion for his work. There was no sense of pressure throughout the process. He made sure he answered all our questions and concerns.

Had a great consultation with Mark! He was very professional and did an extensive inspection of the property and the crawl space. He was patient and clearly explained his findings and suggested ways to address things. Overall, a really enjoyable experience!

Joel came out today to give me a quote. He was very thorough and honest about everything. He found and showed me some issues I didn’t even realize were there. Really detailed and professional.

James was extremely helpful and informative with inspecting my foundation. I feel like I took a popup class. He explained everything and let me know what to look out for. He gave suggestions and tips for future improvements and confirmed parts that had good structure, including reassurance about places I had concerns. I was nervous about the inspection, but he made it very easy.

Ramon and Henrique were awesome to help get the drain system installed in our house. The quality of work, intensive labor involved in the process, these guys just did the hard work with utmost professionalism and good quality work. They both and the whole team was very responsive to feedback through out the process and helped us get to finish the project on time. For us, there was a little hiccup when scope had to be adjusted to the new findings in the crawlspace, for which groundworks adapted well to the new challenges and accommodate us. Cheers!

The team at Groundworks San Jose is awesome! Huge shoutout to Jean R. (Field Inspector) and Moses B. (Foreman) for going above and beyond on our basement and crawlspace project. They’ve been great to work with—super helpful, professional, and really focused on making sure we get what we want and what our house actually needs.

My wife and I are really happy with their work and appreciate how much effort they’re putting into everything. Highly recommend them!

Ramon, Rico and their crews did an outstanding job. They all deserve an "atta boy "of getting the job done in a timely manner . They made me feel confident that they had everything under control. No Worries .We were in good hands. Thank you!

Dillon Roach from Groundworks in Sunnyvale provided excellent
inspection for our house on Jan 30.
He is one of the best inspector/estimator I have ever seen.
He came on time, evaluated my house situation, took pictures, measure inside, out side of the house. He spend time to inspect difficult job of crawling space, took picture, find problem, and provided us with excellent options and estimate.
I recommend Dillon to any home owner who wants evaluate their house foundation
Thanks
Ahmad Nouri

Dillon from Groundworks came to my home and performed a very thorough inspection. He carefully reviewed every detail, answered all of my questions with patience, and took the time to explain everything clearly. Even though the visit did not result in immediate business, he was honest, professional, and extremely knowledgeable about all aspects of the home. Based on this experience, I would absolutely work with Dillon and Groundworks in the future if the need arises.

Nicolas Picardal came to my home for foundation repair services and did an outstanding job. He took the time to explain everything in detail, made sure I understood all my options, and answered every question patiently. He’s extremely hardworking, very communicative throughout the process, and clearly cares about doing things right. I really appreciated how thorough and transparent he was. Highly recommend Nicolas if you’re looking for someone knowledgeable and reliable

Vidal and his crew, Andre and Joey, did a great job! We did an encapsulation of our crawl space and added a sump pump and dehumidifier. The project went longer than anticipated due to weather, which you just can’t control but Vidal put in so much extra time to catch things up. He kept me updated throughout the entire process and we appreciated how hard he and his team worked to make up for the lost time. These jobs can also get pretty messy but they left our home very clean. I also very much appreciated Vidal making me aware of plumbing issues we had. If he had said nothing these would have continued without us knowing. They aren’t the cheapest BUT I don’t regret spending the extra money. They do very good high quality work and I feel like we got what we paid for.

Five-star service from Derek and Cody! Managing a fourplex inspection in Menlo Park can be a logistical headache, but these two made it seamless by working around both my schedule and my tenants'. They are absolute pros—courteous, efficient, and great at what they do. I hope to have them on every inspection moving forward. Highly recommended!

We had a great experience with Groundworks. From the initial consultation with Ralph to the scheduling and completion of the work. Our crew was Richard, Sean, Frankie and Chris and they were great. They were timely, communicated clearly, cleaned up each day and always made space for our dogs. I highly recommend Groundworks!

If your building/home is sinking, Groundworks is your solution! My neighbor was getting their building lifted so I decided to get a quote since we are on the same soil. I was very impressed with Cody Wellner who came to give me a quote to just keep 1/4 of my building from sinking any further. He took photos in my crawlspace to show me the cracks that I can't see as well as showed me the cracks on the outside. I asked if I should put support in other parts of my building and he said it isn't needed. Because he didn't try to upsell me which I have felt other companies did try, I felt this company is one I could trust. The whole process was incredibly easy. Groundworks worked with my city to get the permit and once it was approved, scheduled the work quickly. Richard was assigned as the lead for the work. He was fantastic in keeping me posted on what the status and answered any questions I had. His crew (Fili, Frank and Sean) were all efficient, professional and did a great job. So if your building needs support, go with Groundworks!

Five-star service from the San Jose Groundworks crew—Estevan (Foreman), Noah (Installer), Roberto (Installer), and Kyle (Supervisor). This team was absolutely outstanding from start to finish. They solved our basement leaking during heavy rain by installing an internal foundation floor gutter system and a sump pump, and the quality of their work was exceptional.

What really stood out was their professionalism and attention to detail. They were incredibly friendly, took the time to explain everything clearly, and treated our home with great care. The floor protection and furniture tarping they set up before starting the job was first-rate and showed how much pride they take in their work.

It’s rare to find a crew this skilled, respectful, and hardworking. I would highly recommend this company—and especially this fantastic team—to anyone dealing with foundation or basement water issues.