We cannot say enough good things about the help and care Ernst Vigil gave us from the start of our crawl 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. read more

Called them twice for a simple crawlspace vapor barrier replacement. The guys they sent wouldn't shut up. Just keep going on on and on about all their services. I ask the guy please stop talking. He keeps talking. I ask him how much. He keeps talking. About nonsense, the company, the tribe does this service and that service. We don't do houses, we make people happy. Well, you sure aren't making me happy. Shut up. And get out of my house. And he keeps talking. What a creep. You talked yourselves right out of this job. ​ read more

Cristhian, Julio, and Cesar did a great job with our cracked patio. They communicated efficiently. Professional with the job. Overall great to work with. 10/10 would recommend. Thanks guys! read more

So far so great! First impressions mean a lot. Everything from the knowledge and respect of the phone 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! read more

I got an estimate from Groundworks to have my crawlspace renovated. The quote they gave me was for encapsulation and a sump pump even though I only wanted to have my vapor barrier and insulation replaced. The quote was 8x more than what it ended up costing to a have a local company do the work. I don't think this company is very trustworthy. They were trying to convince me that my crawlspace needed to be encapsulated even though it's totally unnecessary for my home and was way out of my budget. read more

Steven came and quoted us just over $13,000!!!!! Told us we needed 9 new jacks at $1,391.00 a piece. We called releveling specialist another company. He came out told us we had very good jack stabilizers already and he just needed to readjust those. He charged us $1700 and did an amazing job! For 10% of the cost. Groundworks is rip off and will take advantage of you if you don't know what you have under your mobile home. read more

I hired Groundworks to repair the foundation for my slowly sinking house. They were on time, on schedule, respectful and thorough communicating challenges and progress of their work. Very much appreciated their ability to change their approach where needed especially when it meant saving money, which they did!!! Thank you Sam, Yuri, and Ivan for your expertise and muscle and thanks to Brian and Groundworks staff for supporting me through this project. read more

Josh W, Chris P, Jimmy M and Hunter B spent 3 days in our basement eliminating the almost nonstop flooding. Everything promised by the salesman occurred as stated. They were very professional and kept us informed of what they were doing as well as next steps throughout. In addition to being very knowledgeable and answering all of our questions, they were extremely friendly and polite. We are very happy with the end result and look forward to not seeing any water in our basement ever again. We highly recommend Groundworks. Completely satisfied with the workmanship and service provided. Our dog loves them too. read more

Concrete lifting work completed by Ilia and Iurie. Our garage is in the rear of our home. This means we have a lot of concrete. Our front porch was raised approximately 3 inches and areas in our back area was raised 2 to 3 inches. All areas were drilling was required were patched and are almost invisible. Caulking was also done between the concrete slabs which is also nearly invisible. The form that they used to raise a concrete is remarkably hard, almost like a rock. I was told after foam is injected under a concrete slab that there should be no more further problems with settling. Texting is done to let you know when they leave the office and again when they arrive at your home. Ilia and Iurie are both very hard working, conscientious and polite. read more

Inspection was very professional and more complete than the other two companies we used for quotes. Measurements were made and plans drawn out on their quote. (One other company barely crawled into the space and took no measurements.) Groundworks was not the cheapest quote but you get what you pay for! Quality install, done quickly, all questions answered. Installers Tripp, Keegan, James and Ryder worked well together, were polite, and got it completed quickly. read more

Groundworks - Masonry/Concrete Near Me - SeaTac, Washington

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I just had an absolutely fantastic experience with Groundworks Seattle. Our garage floor was buckling and cracked due to soil movement under the pad. Groundworks was able to level the floor and fix all the cracks in just a few hours. Earnest the project manager and Ilia and Yuri the installers from Groundworks were incredibly helpful, very professional, and I could not be more pleased with the work they did. I already have another project I'd like them to do, and I wouldn't trust anyone else. read more

Zach took the time to walk me through their process, the problem, the solution, and the cost. He answered all of my questions in a thoughtful and thorough manner. When it comes time to pull the trigger on this job, I will definitely go with Groundworks! read more

They are a good Geologist/ civil engineering firm. I was happy with their evaluation of the subsurface for my foundation.

The annual service Matthew performed was efficient and thorough. He was pleasant and easy to talk with. He shared pictures and explained everything he did. read more

Received a phone call saying that they would be out the next day around 1pm and that was the last that I heard from him. Before bed I checked my email to find out that it had been cancelled!! No phone call to let me know. I tried to call him back and no answer, so I called the company to find out that they had cancelled the inspections because they do not handle manufacture home. The email did not explain why it was cancelled; I had to call them! read more

I've been deciding about how best to address the rodent and drainage issues in my crawl space. I narrowed down to three vendors, and of the three, Groundworks provided the most comprehensive and highest quality solutions. Ernest Vigil visited my home, did a thorough inspection and took 'way longer than necessary to walk me through the alternatives. I had some follow on questions, and Ernest got back to me right away with either an explanation or another alternative. After my selection process, I'm convinced that Groundworks provides the lowest risk solution available in the Seattle area. They aren't the cheapest, but Groundworks - and Ernest - are the best. read more

These guys were horrible I'm 68 years old and they saw an opportunity to try and take advantage of me . I had a bid from them to put new insulation and a vapor barrier they showed up and said I had a crack in my foundation and couldn't do the job . After I had already given them a 50% deposit . Things went down hill from there . They told me I needed thousands of dollars for the foundation . Then they came back to do that job and the price tripled . Then they still would not do the original job . Someone needs to stop these guys from picking on senior citizens ! They finally refunded my deposit almost 2 months later ! Horrible company ! Do not hire them !!! read more

The Groundworks crew that came out to our home for an encapsulation project was fantastic! Ty and Ty (yes, there were two with the same name!) and Joshua W. were kind, efficient, and cleaned the space well when the project was completed. Joshua W. answered all our questions thoughtfully and was able to offer up some thoughts on a different house issue which I suspected could be causing air quality issues in our home. I followed up on Joshua's suggestion and am so grateful he took the time to provide his input. It was spot on! My husband was also very impressed with Joshua's overall knowledge and skillset. We've had quite a bit of work done in our home the past few years and Joshua stood out as a top notch professional, both with his knowledge base and his communication style. read more

Blake came to our home and did a very thorough inspection and determined that we did not need any of their services because our home was sound and dry and he saw no issues at all with our foundation. He even reviewed his finding with us to assure us our home was dry and secure. We were so delighted in his honesty, even though it meant no work for his company at our home. We would highly recommend Groundworks for an honest review of your homes foundation. read more

ANH & IAN did a great job for me. They came early, and they called before they showed up as soon as they showed up they started working, I noticed they were very courteous and cleaned up after themselves, and they even gave me some really much needed concrete advice and helped me square up a corner that was a little rough. Overall, I'd give these guys a 10 out of 10. If you need Poly jacking or groundworks applications in the puget sound, you should call them, they will do an excellent job! read more

They are truly superhero's like their commercial states. I had waited a long time to get this done and they did not disappoint. The guys that came kept me informed and did everything they could to make sure I was satisfied! Customer service on point for questions and concerns. Problem solved with my homes best intentions! I highly recommend Groundwork's to anyone who needs foundation work done! Cynthia read more

Reached out for a quote and right before I signed the document, I received an inadvertent email telling me what they really thought about me. Clearly this company doesn't respect their customers. read more

Groundworks - Masonry/Concrete Near Me - SeaTac, Washington

Alex and his team of Iuri and Luis did a terrific job with the foundation leveling on our garage/office. Using 7 pin piles they gently raised the foundation to level, all without breaking any windows and even very little drywall cracking. (They raised the end of the building nearly 4 inches!!!). The team worked very well together, and really knew what needed to be done, and were attentive to protecting the property from damage.. Although not inexpensive, the work was done beautifully, and added real value to the home. We highly recommend these guys for any foundation work. read more

Groundworks - Masonry/Concrete Near Me - SeaTac, Washington

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It is a huge shock to realize that one's home is in such danger with a serious foundation issue that will be very costly. But I have to admit that from the very start Groundworks was awesomely professional and impressive. The evaluation process was ultra thorough. Then the actual workers were beyond amazing. The communicated fabulously with me daily to keep me in the loop. What impressed me the most was how very hard these men worked non-stop during the days, often staying longer than five o'clock to finish the day's job. They were careful with my home and property and cleaned up after themselves. It is quite a relief that in this day and age one can trust and witness such a great company with professionals that have such a phenomenal work ethic. read more

Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean read more

Matvey exceeded expectations with their honest, trustworthy service. Brian explained the process thoroughly, contrasting with a previous unreliable company. Matvey, despite being pricier, provided a permanent, math and science-backed solution, emphasizing their 20 years of experience. Olga's efficient coordination and professionalism stood out. She instilled confidence by keeping us updated during the entire process. The independent inspector suggested additional support, reinforcing Matvey's commitment to informed decisions. Alex and his crew maintained absolute professionalism during the week of service, especially in challenging crawl space conditions, showcased their dedication. They were very respectful of our home and super nice people. If it wasn't for a few sounds of an impact drill you would never know they were even there! Matvey's cleanup, including building temporary steps to our front door, left our front yard better than before. Our jaws dropped! After 4 years of dealing with a slanted hardwood floor we finally have it perfectly level! I can sit in my office chair and not roll downhill anymore! I was brought to tears knowing that finally our home is fully supported the way it should be. Not only this settling issue, but also for security in the future. Their lifetime warranty is total piece of mind. We also love that it's transferable when we sell the home eventually. Matvey's service was a perfect white-glove experience, providing professionalism you can't put a price on. They felt like extended family, delivering a level house and instilling confidence in our future plans. Overall, Matvey's reputation as the #1 foundation company is well-deserved! read more

Groundworks - Masonry/Concrete Near Me - SeaTac, Washington

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The foundation of our 116-year-old house has had some repairs and additions over the years, some okay and some not so good. It was time to get professional help. Matt G came out and had some recommendations, and we soon had an estimate from Matvey Foundation Repair. Their crew of Chris, Eduardo and Iuri were at our house this week. Very nice guys, Chris explained what they were going to do, and they got right on it. They made sure to check what we wanted: stabilization rather than trying to "chase level." They did a very good job; we have found that the floor is less slanted, and it does feel more level than before. It was a tight squeeze for them to get to the back addition area, the only under-house access is over 20 feet away. Clearance was slim, but the bathroom squeak is gone. And no more bounce by the back door! We think Matvey Foundation did the best work we could have asked for: not the cheapest, not the most expensive, but a fair price for very good work. Definitely a 5-Star job for us. Thank you so much for helping us maintain our much-loved old house! read more

Groundworks did a terrific job on our crawlspace. The workers were very professional, completed the work in a timely manner, and the end result looked great. I highly recommend them! read more

Polite, professional and through. Recommend highly. Jacob Richard and Zack were great

Another great experience with Groundworks! MARCOS, EDUARDO and KENDER got right to work and finished before noon! Clean, tidy and efficient. Great leadership and customer management by Marcos! I remain a very loyal customer and believe my house will last forever! Thank you. Jane hA read more

Our 3-man crew (Cristhian, Julio & Jesua) seemed very competent as they completed our crawl space upgrade. They were polite and friendly, and answered any questions we had. When our supply of extension cords to power the sump pump was inadequate, they donated their cord to tide us over until the electrician installed the permanent connection. read more

Ernest was great at inspecting my issue. I learned a lot and felt like he really listened to me and gave things a thorough look.

Had Groundworks install a drainage system and sump pump in our home's crawl space. Anthony and his crew, Jordon, Uriel, and James were Outstanding. It was a three day job. They were on time every day and worked their tails off each day. It was a muddy job in cramped quarters. They never complained. Anthony kept me updated on the progress they made each day. Anthony shared pictures of the job as it progressed. They cleaned up the job site each day. Anthony went over all the details at the completion of the job and answered all of my questions. The whole process was Great. From the initial inspection done by Kristy to the office staff and the installation. The communication was also Great. I highly recommend Groundworks for a complete and thorough job. read more

Groundworks did a great job getting us through the design, permit, and installation. The construction team, lead by Marcos, did a great job communicating with us what as the project was installed. They did such a good job cleaning and replacing the dirt that you'd never know they were here. Great job! read more

Estimate to fix driveway issues. Matt Herron arrived on time and took time to examine our driveway, answer our questions, and provide information we were looking for. Unfortunately, our project is outside Groundworks scope of business. He did provide a direction for us to pursue, where we had none. Thanks for your time and expertise. read more

Anh and Roman telephoned to confirm theiir arrival to level and repair our patio. they explained the project and possible difficulties with roots from nearby fir trees. They worked to level the pad and seal cracks, cleaned the work area and left for the next job. Very pleased with the crew and the results. read more

I did not include a photo because the photos you see in their ads are very accurate. I was a property manager for 20 years and I have never had anyone do a better job than this team. Yes, it was expensive, but they solved a water intrusion problem and made the crawl space clean enough to sleep in. Our crawl space entrance is in an awkward closet and they protected the floors and kept everything immaculate while digging a drainage trench, installing a thick, clean barrier and a sump pump. read more

I hired Matvey to stabilize my foundation. We had numerous cracks and settlements due to active issues. They came out immediately and resolved the problem within a couple of weeks. The job only took a few days to complete, and the guys were top-notch. They took the time to communicate what they were doing, how, and when they'd be done. They also made sure to put everything back the way it was before they came. I would highly recommend these guys. read more

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Marcos, Eduardo, and Kender came out and did a fabulous job on getting my house level. very courteous, prompt, and professional. If these are the employees of Groundworks (and they are) then i highly recommend you hire them. If I had to do it all over again, I only wish one thing different. I wish I would've called them first. Thank You sooo Much Marcos, Eduardo, and Kender Thank you, Neil read more

After multiple instances of flooding in my basement due to groundwater I had Groundworks install in interior drain and thtee sump pumps (one battery backup) and a dehumidifier system. I was completely happy with the crew, their work, communication and on time under budget delivery. Ricardo S was a great foreman, and Richard S., Michael C., Jonathan and Jesus all deserve kudos for their work. Highly recommend giving Groundworks a shot - and the fact that the work with GreenSky for financing was icing on the cake for this unplanned expense! read more