Go visit my Google review where I give details to the excellent experience we had with our…read morefoundation lift here in Petaluma, CA. They exceeded my expectations and left the home level and clean. I checked several companies before I chose Xalos for our work. Good people, skilled crews, friendly hardworking, knowledgeable. The company has a family vibe to their business.

Did not do the job right,unprofessional, doesn't stand behind his job,lack of workmanship.read more

Groundworks did a great job adding a beam to add strength to our home foundation. Cody arrived on…read moretime and inspected our sub floor area. He was very easy to communicate with and provided a thorough inspection along with a cost breakdown. TJ and his team arrived to install beam to add more support to living room floor area. They were extremely professional from start to finish. They arrived on time and took the time to thoroughly explain everything before beginning the project. Throughout the process, TJ kept me informed and made sure I understood what was happening every step of the way. TJ and his crew worked carefully, professionally, and thoughtfully to ensure the project was completed without causing damage to our home. I truly appreciate the care, attention to detail, and professionalism TJ and his team put into the entire job. I would highly recommend Groundworks!

I spent approximately $30,000 with Groundworks, and I deeply regret hiring them…read more I called Groundworks for one reason: contractors working on my floors noticed a slope and told me the beams underneath my house needed to be stabilized before they could continue. Groundworks assessed my crawl space and recommended a system they represented would address the problem. I relied on their expertise. That is the ONLY reason I agreed to spend approximately $30,000. When the project was about 80% complete, Groundworks suddenly told me I needed to call a carpenter. They did not explain that there was significant dry rot underneath my home or that the condition of the wood needed to be addressed before the work they were performing. I learned that later, after hiring an independent home inspector. By then, Groundworks had already been working throughout the same crawl space installing stabilization and encapsulation. My inspector identified significant dry rot and explained that it needed to be addressed first. Had I known that before Groundworks performed approximately $30,000 worth of work, I would NEVER have moved forward with their recommended system before addressing the underlying damage. And here is the worst part: THE ORIGINAL PROBLEM WAS NOT FIXED. The slope remains and appears to have increased since their work was completed. I am now facing additional repairs and expenses, and some of Groundworks' work may have to be undone or worked around to properly repair the underlying damage. The encapsulation has also been problematic. It was supposed to help keep my crawl space dry, but it was not properly secured, leaving openings that allowed rodents into my crawl space. I also later learned that the dehumidification equipment installed did not cover the entire crawl space as I understood it was supposed to. Then there is the customer service. Once they had my money, getting meaningful help became incredibly difficult. I have contacted corporate and have gone more than a month without a meaningful response. If Chris is assigned to your project, based on my experience, I would be extremely cautious. My advice before hiring Groundworks: GET AN INDEPENDENT INSPECTION FIRST. Do not rely solely on the assessment of the company selling you the system. Get everything in writing and ask specifically whether anything underneath your home needs to be repaired before their system is installed. I trusted Groundworks to identify the problem and recommend a solution. Approximately $30,000 later, my original problem remains, the slope appears worse, I discovered significant dry rot that should have been addressed first, I am facing additional repairs, the encapsulation allowed rodent access, and corporate has been unresponsive. I would NEVER recommend Groundworks based on my experience. $30,000 spent. Original problem unresolved. More repairs ahead. That speaks for itself.

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.

I appreciate the help of MKM in designing the foundations for my Timber Framed Barn "kit". They…read morewere flexible and willing to work with another Structural Engineer to meet the needs of Building, County Code, and me.. the owner! Thanks for the help.

I recently bought a home in Sonoma that had a Cornwall and needed to have piers put in where some…read moreplumbing work had been done. I contacted the engineering group at MKM and was put in contact with Nick Stuart. Nick came out and did a site visit and then worked with a designer to work on a voluntary repair plan to better support my foundation and wall. The experience while working with him was great. He was very responsive, kept to a schedule and came in at the budgeted amount forecasted for the work. He even did above and beyond items, dropping copy of plans off to me while I was at the permit office! I would absolutely recommend them in the future and plan to work with them again on a second unit in the upcoming months. They are extremely professional, have a great work ethic and do a great job!