DO NOT GO ANYWHERE NEAR THIS COMPANY!!! They are not competent. When R&R "fixed" the foundation,…read morethey just installed above-grade composite discs AS THE FOUNDATION-- which is completely against code and ENTIRELY structurally unsound. The discs are supposed to be installed below the frost line--NOT ON TOP OF THE GROUND. Also, in many places, the posts they used are not even connected to the beams. Either this company is completely incompetent and unaware of basic industry standards, or they knew and did this work anyway. Whatever you do, stay away from this company.

I strongly recommend this company. Unlike two other companies we got to come look at some cracking…read morein our walls, they took a careful AND honest look. Another company put the hard sell on us for a solution that didn't even make sense; R&R explained why what we were seeing wasn't concerning and DIDN'T need work (or money!). When we looped back a few months later, they connected us with other upstanding soil specialists and structural engineers. In a business that seems full of scammers, these guys are the real deal. Thanks R&R!

You will be satisfied with your experience!…read more We recently completed a large foundation project with Groundworks in Edmonds, WA -- a roughly $70,000 job involving permits, engineering reports, and significant structural work. Given the scope and importance of the project, I wanted to share a complete and thoughtful perspective. Overall Experience From intake through execution, the experience was strong. The consultation was detailed, the proposed solution was clearly explained, and the permitting and engineering process -- which took a couple of months -- was handled smoothly with consistent updates. The crew worked efficiently, and the quality of the foundation work itself was solid. The Consultation & Planning Our home sits on a steep slope, and an addition at the back had begun to settle. Groundworks sent out Jerry for the initial consultation, and he was excellent. Jerry was knowledgeable, energetic, and charismatic, and he took the time to clearly walk us through the problem, the proposed solutions, and what a job of this scale would realistically involve. He explained the engineering considerations in plain language, answered questions thoroughly, and helped us understand both the risks and the long-term benefits of doing the work properly. From an intake and planning standpoint, we felt confident moving forward. The Project The scope of work was extensive and involved foundation reinforcement along the entire back of our house, as well as drilling and post installation outside of the foundation to properly support a failing rear addition. Because much of this work needed to be performed beneath and adjacent to our back deck, deck access was required. We discussed these access needs ahead of time, and I even removed the top decking myself to reduce labor costs, based on our shared understanding of what would be necessary. A Miscommunication (and What Happened Next) While I was out of town during part of the work, a miscommunication occurred on site regarding what deck changes were permitted. As a result, the deck was dismantled more extensively than any of us had anticipated. This was understandably frustrating -- not because anyone did something wrong, but because the situation was genuinely complex and confusing. It was a conversation that perhaps should have been extremely clear about what was happening, but it wasn't -- and it wasn't the fault of any single party. Once the issue was identified and elevated, senior leadership stepped in, and this is where Groundworks truly distinguished itself. Leadership Response & Resolution We ultimately worked directly with Nathan Malsch, the General Manager, who was professional, attentive, and genuinely committed to making things right. Initially, we discussed a 50/50 split on replacement lumber for rebuilding the deck. Nathan went well beyond that agreement. Groundworks purchased more than enough lumber for a full deck rebuild, had it delivered directly to our home, and even provided a Milwaukee impact driver/screwgun set along with Milwaukee bits to help with reconstruction! That level of ownership was frankly unexpected and deeply appreciated. It wasn't just about compensation -- it was about leadership taking responsibility and ensuring we felt supported after a frustrating situation. Final Takeaway Large foundation projects are complex. What ultimately matters is how a company responds when challenges arise. Based on the quality of the work, the professionalism shown during consultation, and the accountability demonstrated by senior leadership, I feel confident recommending Groundworks. We ultimately walked away satisfied and appreciative of the effort made to ensure we were truly taken care of.

Last year we had Groundworks come and waterproof our basement. I am extremely satisfied with not…read moreonly the work but communication and professionalism from every member of the team! I scheduled our one year maintenance for a technician to come out clean the drains, sump pump, and just make sure everything is working properly. Aspen arrived on time, kind and very professional. He answered all my questions and was a great reminder that this home improvement we chose to do was a smart and good decision. Thank you Aspen and all of the Groundworks crew!!

Misha and Slavik came to day to finish up--too cold last week and snow... did a great job slab…read morejacking my garage floor...some final touches to make it look better... Very satisfied.... Professional, competent, and left the garage cleaner than when they arrived!! Highly recommend

They never performed the promised work, and never gave me a refund. They are no longer accredited…read moreby the Better Business Bureau, have changed their location to Woodinville. I'm guessing new reviews are phony. In 2025, they likely performed promised work, but not now.

We cannot say enough good things about the help and care Ernst Vigil gave us from the start of our…read morecrawl space project to the end. He returned our calls and emails promptly and helped guide us each step of the way. He went above and beyond when a problem arouse to find local help to quickly come out to help address and fix the problem. Mathew from Puget Sound Water Rescue one of the local company is a good company to have on call. And your team members from Georgia were outstanding. We have several neighbors who have watched the care and quality we received with ground works and have said they will be the first company they will call when they are ready to have work done on their homes. Thank you, Ernst and the rest of your team for treating us like you would a member of your own family. It has been a pleasure working with you. Cindy and Alan D.

So far so great! First impressions mean a lot. Everything from the knowledge and respect of the…read morephone consultant to the expertise and personable manner of the inspector makes me feel confident that I made the right choice in calling Groundworks SeaTac. Everything was carefully explained and all of my options were made clear. Good start!

I hired R&J to replace a rotted sill plate and remove a portion of concrete walkway and door step…read more(which was trapping moisture against the front wall and rotting the exterior sill and joist). After removing the concrete, replacing the rotted wood, he built us a small deck area which gives us larger lateral space as a door step compared to the small concrete step. A marked improvement over just the moisture fix and rot repair. This was a pretty significant job and our home is very unique in structure which created many challenges. As a homeowner invested in a major renovation project, I had some pedantic requirements and Jorge was empathetic to all of them. The work was permitted and passed inspection with king county.

I've been doing many, many remodels for my business and my homes over the past 25 years and Jorge…read moreis a true professional. I had what I thought to be crumbling concrete siding also known as "Rock-Crete" in several areas outside my house. So many companies just told me "nope!" This is a new one for me as I've never worked with this. The painters who recently came out to paint my house wouldn't go anywhere near it. Within 10 seconds he pointed out that it was only a few layers of paint peeling back. He was kind about it, and wasn't upset that I had wasted his time. I will call him as soon as I have another project in his wheelhouse. Thanks Jorge!

We own a home in downtown Seattle with a basement that's partially filled with soil. We've often…read morewondered whether it's feasible to excavate that portion to create a usable basement room. Recently, we purchased another house just across the street, which experienced water leakage in the basement. Concerned about potential foundation issues in both properties, we reached out to Ram Jack West for a professional evaluation. Chris from Ram Jack West arrived promptly and conducted a thorough assessment of both homes. He took the time to answer all our questions and provided clear, reassuring feedback. Thankfully, he confirmed that neither property showed signs of foundational problems. We truly appreciated the peace of mind Chris gave us. When we're ready to move forward with excavating the basement in our first home, Ram Jack West will be our first call. We highly recommend this company--they're professional, knowledgeable, and genuinely committed to helping their clients.

We were completely satisfied with the work Ram Jack performed for us. First, they were BY FAR the…read morelowest professional bid on our house. They did the most detailed analysis of where the house needed to be raised, and didn't try to upsell us on anything extraneous to that. Most of our job consisted of putting several dozen jacks under the floor, to reverse 25 years of settling. It took a bit more than a day to place everything, and then a few hours to actually jack things up. The floor is now essentially level, and there were no cracks that we have found.

***Please note -- I updated my review from 1 to 5 stars. Terra Firma took the initiative to reach…read moreout and assess any next steps needed to correct the problem. Trust is 100% restored knowing that if problems come up they will take any action needed to follow up. I will also say that the work they originally did was actually to code, and we agreed that the moisture problems arose due to the nonstandard setup of my dehumidifier, NOT because of errors in Terra Firma's work. Thank you Terra Firma.*** Unfortunately, I have to drop a negative review in the interest of warning other folks that their work has gone downhill. I previously had an excellent experience with Terra Firma for management of a water problem in my crawlspace. I hired them without question again for my current property for management of moisture issues, and I didn't check their work upon completion as thoroughly as I should have. Unfortunately, about 1 - 2 months after completion of work, I discovered a large mushroom growing out of one of the structural posts in my crawl/basement. On closer inspection, I noticed that the dehumidifier water discharge line they installed was dumping less than a foot away from my foundation, corresponding to the exact spot the mushroom was growing. Moisture was the exact problem they were supposed to fix, but now they have created a severe structural problem secondary to moisture with the dehumidifier line dumping large quantities of water right next to my foundation. In other words, they created the exact issue they were purporting to fix by collecting the moisture and depositing it into my foundation. Once fruiting bodies are growing out of wood, this is an indicator that the wood is severely compromised and the fungus network has grown extensively. I now have a very expensive and serious problem to fix. I called to let them know about the problem, not sure if I will hear back from the coordinator/ the team who did the work. I am not sure if I would trust them to fix the issue after the damage they have caused, but I would accept financial remediation. If they take steps to make things right, I would update my review. I would not hire Terra Firma again for any crawlspace work, be it structural or moisture related because of the big problem they have caused. Again, just would like to warn others.

Bailey did a fantastic job inspecting my crawl space and designing a solution that fit my needs. I…read morereally appreciated his thorough evaluation, detailed explanations, and professionalism. I will keep TerraFirma in mind for future projects.

Ben came to my son's house to give us an estimate for repairing an apparent crack in the…read morefoundation. He showed up on time and crawled under the stairs in a space crowded with stored items. After a careful examination, he gave us some good news. What looked like a crack was in fact, a small surface gap where the cement did not fill in the gap between 2 of the form boards. He did not charge us, but gave us a huge relief that there was no structural problem. I would recommend them if you have any concerns about your foundation. I believe you will get a fair and honest evaluation.

Osiel Matar and his crew at Matar Construction did a great job fixing my foundation in the…read morecrawlspace. Osiel was super nice, very accommodating, and gave me a fair price. He brought out a hardworking crew, and they got the job done right. What's even better is that his crews handle all kinds of work -- general construction, carpentry, cabinetry, and even landscaping. Definitely someone you can trust for a wide range of projects. Highly recommend!

Appreciated their expertise and ability to offer different solutions to address issues.read more

I connected with Michael for a consult on vaulting a ceiling in a potential house we were…read moreconsidering to buy. The contractors we spoke with needed input from a structural engineer, and Michael was able to do a quick summary of structural ramifications and structural redlines of the rough floor plan. I was extremely impressed by his responsiveness, professionalism, and quality of work even for this small ask. He charges by the hour and I was more than happy to pay for his time, but he provided the detailed summary with just the floor plan and didn't even ask for payment in the end as we were just looking for an estimate for cost of construction. I would recommend Michael to anyone seeking a structural engineer, and would be happy to hire him in the future if I need his services again.