
Get matched with top foundation repair specialists in Vashon, WA
There are 7 highly-rated local foundation repair specialists.
Need a pro for your foundation repair project in Vashon, WA?
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Verified Reviews for Foundation Repair pros in Vashon, WA
*The Angi rating for Foundation Repair companies in Vashon, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.
*The HomeAdvisor rating for Foundation Repair companies in Vashon, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.
Last update on November 10, 2025
Find Foundation repair specialists in Vashon

TerraFirma Foundation Systems
TerraFirma Foundation Systems
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Great; competitive price, installation went great, friendly and responsive staff in person and office"
Andrew M on February 2020
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Great; competitive price, installation went great, friendly and responsive staff in person and office"
Andrew M on February 2020

Groundworks
Groundworks
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305
"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"
Charles W on May 2025
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305
"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"
Charles W on May 2025

Ram Jack West - Seattle
Ram Jack West - Seattle
At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.
"Very well. They worked diligently for two days to do the repair."
Bonnie L on October 2025
At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.
"Very well. They worked diligently for two days to do the repair."
Bonnie L on October 2025

Advanced Foundation Supports, LLC
Advanced Foundation Supports, LLC
We are dedicated to providing our clients with the very best in concrete foundation repair. With over 30 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"Professional,knowledgeable and straight forward. I wouldn't hesitate to hire them again and have been recommending them to my contractor friends."
Tony L on July 2018
We are dedicated to providing our clients with the very best in concrete foundation repair. With over 30 years of industry experience, we take and enormous amount of pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.
"Professional,knowledgeable and straight forward. I wouldn't hesitate to hire them again and have been recommending them to my contractor friends."
Tony L on July 2018

Wu Construction
Wu Construction
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025

Ram Jack West - Portland
Ram Jack West - Portland
At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.
"Purchased a 1906 home in North Portland with an uneven foundation that had been patched for 60 years, but needed serious stabilization work. I contacted multiple foundation contractors in the greater-Portland area and Ram Jack was the only team that provided a full worse-case estimate that included everything that I may need to permanently stabilize the home's foundation. Other contractors' estimates were higher, omitted some of the features of Ram Jack's estimate, and involved greater excavation work around the home. While I was collecting estimates, I had multiple contractors check the levels on the house and could see the home was continuing to sink as much as half and inch in some areas within only a few months, so I knew I had to do something soon as the hotter summers are causing significant erosion to the clay soil in north portland. After paying the 50% down payment, I was quickly in touch with multiple project managers and structural engineers who were able to answer my questions as the work plan developed. I work from home and have two cats, so I was a bit worried about the noise and needing to leave at certain times during the work. Ramjack devised a plan of installing 12 helical piers from the basement and 2 outside for a small crawl space area as well as replacing most of the piers in the basement that had water damage. During the excavation and pier installation, I didn't have to leave my house at all, my cats were fine, none of the utilities ever needed to be turned off and none of the neighbors said they heard more than the hum of the generator outside; insane professionalism. The work team kept me informed at every step of the excavation and pier installation and was able to recover an inch of lift with only a few drywall cracks that I patched in a day. I could have gone further, but wanted to avoid any potential damage to the sewer pipes and stay within my budget. During the lifting, I was standing with the lead construction manager who kept me informed of every risk as we lifted the house bit by bit. During the excavation my basement looked insane with mounds of dirt everywhere, but the construction team cleaned everything flawlessly; all I had to do was a quick mop and the basement was good as new again. Overall had a great experience with RamJack; the 20 years in business shows, most everyone I dealt with had been working with them for years; the construction manager had been doing pier installation for 15 years. The work was expensive, but cheaper than the other local contractors, and certainly way cheaper than replacing the entire basement foundation. Ramjack was even able to take a few grand off the intitial worse-case estimate for solutions not needed. Glad I was able to repair my 120 year old home; here's to another 100 years. Big thanks to Pancho and Stephen, as well as the structural engineers and project managers; I'm very happy with the work."
Kevin S on March 2022
At Ram Jack West, we treat customers with respect and care. If you notice cracks, damages, or other issues with your foundation, our team is ready to help. We have innovative systems that have been refined over our 40+ years of experience.
"Purchased a 1906 home in North Portland with an uneven foundation that had been patched for 60 years, but needed serious stabilization work. I contacted multiple foundation contractors in the greater-Portland area and Ram Jack was the only team that provided a full worse-case estimate that included everything that I may need to permanently stabilize the home's foundation. Other contractors' estimates were higher, omitted some of the features of Ram Jack's estimate, and involved greater excavation work around the home. While I was collecting estimates, I had multiple contractors check the levels on the house and could see the home was continuing to sink as much as half and inch in some areas within only a few months, so I knew I had to do something soon as the hotter summers are causing significant erosion to the clay soil in north portland. After paying the 50% down payment, I was quickly in touch with multiple project managers and structural engineers who were able to answer my questions as the work plan developed. I work from home and have two cats, so I was a bit worried about the noise and needing to leave at certain times during the work. Ramjack devised a plan of installing 12 helical piers from the basement and 2 outside for a small crawl space area as well as replacing most of the piers in the basement that had water damage. During the excavation and pier installation, I didn't have to leave my house at all, my cats were fine, none of the utilities ever needed to be turned off and none of the neighbors said they heard more than the hum of the generator outside; insane professionalism. The work team kept me informed at every step of the excavation and pier installation and was able to recover an inch of lift with only a few drywall cracks that I patched in a day. I could have gone further, but wanted to avoid any potential damage to the sewer pipes and stay within my budget. During the lifting, I was standing with the lead construction manager who kept me informed of every risk as we lifted the house bit by bit. During the excavation my basement looked insane with mounds of dirt everywhere, but the construction team cleaned everything flawlessly; all I had to do was a quick mop and the basement was good as new again. Overall had a great experience with RamJack; the 20 years in business shows, most everyone I dealt with had been working with them for years; the construction manager had been doing pier installation for 15 years. The work was expensive, but cheaper than the other local contractors, and certainly way cheaper than replacing the entire basement foundation. Ramjack was even able to take a few grand off the intitial worse-case estimate for solutions not needed. Glad I was able to repair my 120 year old home; here's to another 100 years. Big thanks to Pancho and Stephen, as well as the structural engineers and project managers; I'm very happy with the work."
Kevin S on March 2022

MTU Services LLC
MTU Services LLC
Protect the investment you’ve made with the knowledgeable team at MTU Services LLC. We are your local basement and foundation experts serving all of Washington state and North Idaho. We offer customized basement waterproofing, foundation repair, concrete crack repair, and basement sump pump solutions and egress windows for your home. Contact MTU Services LLC today to learn more about how we can help you protect your home. Give us a call to request a quote or to schedule service. Services include: leaking basement or crawl space repairs, foundation cracks repaired, lifting piers and levelling for your home or building, sup um systems and more.
"The project at xxxxx was complete last Thursday. Impressive is an understatement for Jesse and his crew. Excellent communication; excellent followthrough and project completed within estimated timeline and completed as quoted. From our original contact with MTU Services on Aug 20th, through the proposal, scheduling and actual project, MTU has provided service excellence! Thank you!!! I recommend MTU services!"
Gina B on October 2025
Protect the investment you’ve made with the knowledgeable team at MTU Services LLC. We are your local basement and foundation experts serving all of Washington state and North Idaho. We offer customized basement waterproofing, foundation repair, concrete crack repair, and basement sump pump solutions and egress windows for your home. Contact MTU Services LLC today to learn more about how we can help you protect your home. Give us a call to request a quote or to schedule service. Services include: leaking basement or crawl space repairs, foundation cracks repaired, lifting piers and levelling for your home or building, sup um systems and more.
"The project at xxxxx was complete last Thursday. Impressive is an understatement for Jesse and his crew. Excellent communication; excellent followthrough and project completed within estimated timeline and completed as quoted. From our original contact with MTU Services on Aug 20th, through the proposal, scheduling and actual project, MTU has provided service excellence! Thank you!!! I recommend MTU services!"
Gina B on October 2025
Conklin Enterprises
Conklin Enterprises
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"I had had a sewer scope done a few months before the project, and I thought the only problem was a root intrusion. It would require excavating a section of pipe and replacing it. Richard gave a competitive quote for the repair. Once the pipe was exposed, though, there were two more issues - a large hole past the root intrusion and a crack that hadn't been visible from inside the pipe. This expanded the scope of the project, but Richard and his crew took care of it. While they were at it, they even replaced an adjacent downspout drain that was at end-of-life. The crew showed up on time and the work was done exactly on schedule despite the surprises. Everything looks great now and the side sewer works. I couldn't be more pleased with the repair."
Samuel S on December 2021
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
"I had had a sewer scope done a few months before the project, and I thought the only problem was a root intrusion. It would require excavating a section of pipe and replacing it. Richard gave a competitive quote for the repair. Once the pipe was exposed, though, there were two more issues - a large hole past the root intrusion and a crack that hadn't been visible from inside the pipe. This expanded the scope of the project, but Richard and his crew took care of it. While they were at it, they even replaced an adjacent downspout drain that was at end-of-life. The crew showed up on time and the work was done exactly on schedule despite the surprises. Everything looks great now and the side sewer works. I couldn't be more pleased with the repair."
Samuel S on December 2021

Seattle Foundation Repair
Seattle Foundation Repair
Each year sinking foundations, cracked and buckled walls, and cracked and uneven floors affect millions of families. Buildings situated on unstable soils will settle when the foundation is subjected to moisture or poor drainage. A shifting foundation could result in structural damage and potentially, a loss of your investment. Foundation problems should be addressed as soon as they are discovered before the damage is irreversible. If you notice any of these signs, call us at Seattle Foundation Repair to protect your property value and ensure the safety of your home.
"I contacted them for work and have regretted it ever since. They pull you around and act responsive until the rubber hits the road to take action, ghosting me ever since. They billed me 900 dollars for something they did not do. They promised to bury the concrete they dug up and broke their word. I texted the owner until he stopped responding. I emailed them until they stopped responding—terrible company to work with."
David C on December 2024
Each year sinking foundations, cracked and buckled walls, and cracked and uneven floors affect millions of families. Buildings situated on unstable soils will settle when the foundation is subjected to moisture or poor drainage. A shifting foundation could result in structural damage and potentially, a loss of your investment. Foundation problems should be addressed as soon as they are discovered before the damage is irreversible. If you notice any of these signs, call us at Seattle Foundation Repair to protect your property value and ensure the safety of your home.
"I contacted them for work and have regretted it ever since. They pull you around and act responsive until the rubber hits the road to take action, ghosting me ever since. They billed me 900 dollars for something they did not do. They promised to bury the concrete they dug up and broke their word. I texted the owner until he stopped responding. I emailed them until they stopped responding—terrible company to work with."
David C on December 2024

Sejant Foundation Restoration
Sejant Foundation Restoration
We provide foundation repair services for residential and commercial buildings which are experiencing shifting, cracking, or settling to insure they maintain their value. Unlike most companies, we don't have a patented system we must use. With us, each project is unique and we use the best solution. We have 10+ years experience in the foundation repair business, and are a locally owned company. This means this is our passion, not just a job.
We provide foundation repair services for residential and commercial buildings which are experiencing shifting, cracking, or settling to insure they maintain their value. Unlike most companies, we don't have a patented system we must use. With us, each project is unique and we use the best solution. We have 10+ years experience in the foundation repair business, and are a locally owned company. This means this is our passion, not just a job.
The Vashon, WA homeowners’ guide to foundation repairs
From average costs to expert advice, get all the answers you need to get your job done.

Staying ahead of foundation problems can save you time and effort. Learn how much foundation inspections cost and what affects how much you’ll pay.

A bowing basement wall needs immediate repair. Learn how much it costs to repair a bowing basement wall and what factors can affect the final price tag.

Crawl space maintenance can help improve indoor air quality and avoid structural damage. Learn how much crawl space cleaning costs and when to schedule it.

Learn what a monolithic slab foundation is, as well as its construction, advantages, and limitations to find out if it's the right choice for your home.

How thick a foundation should be depends on a few factors. Learn about minimum thicknesses for different foundation types and soils in this guide.
The soil type under your house can impact your home's foundation. Learn the different foundation soil types and their effect so you can feel secure in your home.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"




