Part one of a two part foundation project Recently we had…read moreour house foundation repaired by Groundworks out of Fairfield. One bedroom had sunk by almost 5 inches as that part of the house had been built on fill. In order to restore the house to it's proper level numerous foundation jacks and floor leveling screw jacks were required. In addition some landscaping bushes and pvc sprinkler pipes had to temporarily removed. Groundworks had informed me prior to starting work what would be required to successfully complete this project and had my full approval. The house is now level, the doors no longer swing on their own and the interior cracks between the walls and ceiling joints no longer exist. Prior to the crew leaving the yard was cleaned up and the pvc pipes replaced. Best of all Groundworks will come back annually to the next 5 years and make any necessary adjustments. The Groundworks crew that made this happen was Andrew, the site supervisor, Charlie and Allen. Their performance and daily communication was superior on all levels. This is part 2. The Groundworks Poly crew of Anthony & Brian were very fast and efficient in completing their part of the foundation repair contract which was to level our family room slab floor. Fast, yes, but Anthony did take the time to not only explain what they were going to do but also walked me through the process as they were working. I have no problem in recommending them & Groundworks to other home owners who need to have their foundation repaired.

Absolutely the worst Company! DO NOT USE! They failed to correctly underpinning under the house &…read morerefused to remedy it for 6 months, causing me to fight & fight & fight to get it right, all the while my home was being damaged from bowing in the middle. They're now ghosting me causing more wasted time. The "owner" and management have not contacted me. Your management is rude, workers careless, & the entire company non-responsive. TERRIBLE COMPANY. DO NOT RECOMMEND.

Cesar at Sierra Concrete helped me patch up an area that has been bugging me for years because of…read moredrainage issues. He installed 40 ft of channel drain in area that had some pretty uneven existing concrete and did a very nice job. Showed up on time and finished the job earlier than expected.

Cesar and his amazing crew accomplished a mind-blowing amount of work in less than a week and with…read morethe utmost professionalism. We are building a pool in our backyard, and needed a concrete contractor to pour a concrete decking all around the pool. After much deliberation and interviewing 5 different contractors, we hired Sierra's Concrete to do the concrete decking. They were the most responsive, had the best suggestions, and they had a large selection of photos of their previous work online. Their contracted work entailed: 1 - digging an 87 feet long, 6 feet deep French drain around the pool 2 - installing surface drains to collect rain water 3 - forming and pouring a roughly 1500 square feet deck according to our custom design Sierra's Concrete performed the work to perfection, ahead of schedule, and left the place cleaner than how they found it. It was a real pleasure to witness their performance. Their dedication, coordination, attention to detail and work ethic all shone during the 6 days that they spent here. I never witnessed any heated temper or frustration, the entire crew worked in perfect harmony in a relaxed but professional atmosphere. You could tell that they enjoyed working together and took great pride in their work. Cesar had excellent suggestions to improve on my design. I never had to ask him to do anything twice, and he was true to his word until the very end. His team worked relentlessly, barely ever taking breaks, moving from one task to the next without ever getting into each others' way. They left the site immaculate, even taking the time to pressure wash the driveway. They went above and beyond the call of duty at every step of the way. The end result of their combined effort exceeded our expectations. Cesar is a maestro, and he orchestrated everything with talent and brio. He and every member of his team are true artists. I would enthusiastically recommend Sierra's Concrete to anyone looking for quality drainage systems and beautiful concrete work. I could not have asked for anything better.

Fen Wang has done an outstanding job on our project. After our home burned down, we hired a Prefab…read morecompany to rebuild it, which ended up being a nightmare. There were countless issues due to the Prefab company, not ZFA. Thankfully, Fen was always kind and patient dealing with every issue that came up, and he always provided a solution. It has truly been a pleasure working with Fen, and I can recommend him without reservation.

From the owner: ZFA is a 60 person structural engineering firm serving public and private clients throughout…read moreCalifornia since 1974. We deliver structural engineering expertise to the commercial, correctional, civic, fire, education, wineries, retrofit, design-build, hospitality, healthcare and high-end residential and historic sectors. ZFA is an employee-owned Small Business Enterprise, licensed Federally and in the State of California, with five Bay Area offices. How may we help you today?

Ben Rivas and his family-run business are superb! They completed a massive excavation, retaining…read morewall and patio construction project around my brand new pool. They even created concrete tiles to create a very modern, aesthetically pleasing look around the entire pool. I needed a small structure to house my pool equipment and they did a perfect job. They have attention to detail and they are very customer service oriented. They always promptly replied to any special requests and they truly want you to be happy with the final project. Ben and his team always clean up and they don't mind expanding their scope of work. They are not a company that will nickel and dime you with every small change. Finally, I found their costs to be very reasonable. I would highly recommend them!

Highly recommend this company for any of your concerte needs! We needed a slab poured and a porch…read moreand sidewalks. He also put a coating on it, and we just absolutely love it! They got the job done fast and were clean and organized!

I was very impressed by the quality of the work. Everybody was friendly and professional…read more Additionally, they offered suggestions that improved upon my design. I wouldn't hesitate to use them for any future projects.

Congratulations on earning Diamond Certified for 25 consecutive years. Engineered Soil Repairs has…read morebeen rated Highest in Quality and Helpful Expertise, maintaining that top-level score based on surveys of 526 verified customers. Yours is a superstar performance for quality-seeking foundation contractor & earthquake retrofitting clients throughout the area. Well done! Basement Repair Crawl Space Repair Foundation Crack Repair Foundation Engineering Foundation Inspection Foundation Repair House Leveling Pier And Beam Foundation Repair Basement Repair Crawl Space Repair Foundation Inspection Foundation Repair Pier And Beam Foundation Repair Seismic Retrofitting

Update: the work finally got done and it is beautiful. Their reputation as the gold-standard for…read morethis kind of work is clearly deserved. Upgrading to 3 stars, with the 2 star penalty for the totally ridiculous year+ it took me to get them to actually do the job. The simple answer to the owner's question of "how can we do better" is to honestly and accurately inform customers about what to expect, and then deliver. No secrets there.

Sean came out to see my retaining project and told he'd get back to me with costs after checking…read morewith the city regarding permits. Didn't get back to me and I called him, and he said he'd get to it that week which was over a month ago. Haven't heard from him since.

Maloney Construction had to build a foundation for my house when we added an in-law unit in the…read morerear of my property. I know nothing about construction or faoundations, so we had to rely on Sean Maloney to give us a fair estimate, which they did. Their bid wasn't the lowest, but they impressed us because they took the time to tell us all we needed to know, which gave us a peace of mind. When the work was scheduled to begin, the people at Maloney were there on time. They met our deadlines and did not exceed our budget. The work was excellent and my mother-in-law lives in the addition right now. I can recommend the people at Maloney Construction. We had heard a bunch of nightmare stories about our friends' bad experiences with other comntractors, but Maloney came through in a big way.