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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon106
    Verified foundation repairs reviews

Find Foundation repair specialists in Startup

Avatar for Groundworks

Groundworks

4.68(
25
)
Approved Pro

Groundworks

4.68(
25
)
Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
21 local quotes requested

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025

Since 1987, Groundworks has specialized in helping homeowners with their foundation repair, waterproofing, and concrete needs. Our top priority is providing high-quality home repair solutions and personalized service across North-West Washington. With fully trained technicians, industry-leading products, and nationally backed warranties, Groundworks is here to restore your basement, foundation, or crawl space. GROUN**76305

"Current employee of the Arlington Location posted this on her social media account."

John S on September 2025


Avatar for Wu Construction

Wu Construction

4.76(
186
)
Approved Pro

Wu Construction

4.76(
186
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
31 local quotes requested

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


"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


Avatar for Groundworks

Groundworks

4.56(
140
)
Approved Pro

Groundworks

4.56(
140
)
Approved Pro
Customers say: Quick response
44 local quotes requested
28 years of experience

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


"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


Avatar for Iron Earth Construction LLC

Iron Earth Construction LLC

5.00(
3
)
Approved Pro

Iron Earth Construction LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

"Very accommodating and great service and product"

Sally K on September 2023

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

"Very accommodating and great service and product"

Sally K on September 2023


BSC Construction

5.00(
8
)

BSC Construction

5.00(
8
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to BSC Construction, a home repair contractor. We specialize in handyman home repairs, excavation and drainage construction. Our services include: - Drainage construction - Retaining walls - Handyman services - Home repairs - Excavation and grading Contact us today!

"I was so happy with the thorough cleaning and professionalism. My daughter, too, was very pleased with the quality of work, especially the stove. She said, “It was as if a brand new stove had been delivered to me.”"

Sally K on June 2024

Welcome to BSC Construction, a home repair contractor. We specialize in handyman home repairs, excavation and drainage construction. Our services include: - Drainage construction - Retaining walls - Handyman services - Home repairs - Excavation and grading Contact us today!

"I was so happy with the thorough cleaning and professionalism. My daughter, too, was very pleased with the quality of work, especially the stove. She said, “It was as if a brand new stove had been delivered to me.”"

Sally K on June 2024


Avatar for Strong Foundations Home Inspection

Strong Foundations Home Inspection

5.00(
44
)

Strong Foundations Home Inspection

5.00(
44
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our mission is to provide peace of mind to the homeowner and home buyer; to leverage our experience and expertise in order to ensure that you know everything you need to know about your home. We excel in helping both experienced and first-time home buyers to understand their home better, and to feel comfortable with their surroundings. We will take the time needed to patiently walk a homeowner or buyer through each aspect of their home, from the foundation to the roof and everything in between to ensure familiarity and comfort with the structure and the systems. For the real estate agent, we understand how important it is to be honest and trustworthy, but never alarmist. It is not our job to create a sense of fear or to prevent the home from being purchased. Instead, it is our job to inform the client of the home's current condition, while providing practical advice on how to repair or maintain the home going forward. Making sure the customer feels comfortable with the home they are purchasing is the first step toward a successful transaction. We offer: FREE Thermal Imaging on all standard Home Inspections (most inspectors charge extra, if offered at all) FREE RecallCheks for appliances FREE Home Maintenance Manuals for all clients AND MORE!

"Isaac was thorough, and his report was exhaustive and complete. We are moving forward with a ton of confidence. He was timely, helpful, and friendly. He walked me through the whole house and showed me the issues and areas of concern along the way."

Jake S on September 2025

Our mission is to provide peace of mind to the homeowner and home buyer; to leverage our experience and expertise in order to ensure that you know everything you need to know about your home. We excel in helping both experienced and first-time home buyers to understand their home better, and to feel comfortable with their surroundings. We will take the time needed to patiently walk a homeowner or buyer through each aspect of their home, from the foundation to the roof and everything in between to ensure familiarity and comfort with the structure and the systems. For the real estate agent, we understand how important it is to be honest and trustworthy, but never alarmist. It is not our job to create a sense of fear or to prevent the home from being purchased. Instead, it is our job to inform the client of the home's current condition, while providing practical advice on how to repair or maintain the home going forward. Making sure the customer feels comfortable with the home they are purchasing is the first step toward a successful transaction. We offer: FREE Thermal Imaging on all standard Home Inspections (most inspectors charge extra, if offered at all) FREE RecallCheks for appliances FREE Home Maintenance Manuals for all clients AND MORE!

"Isaac was thorough, and his report was exhaustive and complete. We are moving forward with a ton of confidence. He was timely, helpful, and friendly. He walked me through the whole house and showed me the issues and areas of concern along the way."

Jake S on September 2025



Al Lind Co

5.00(
3
)

Al Lind Co

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Al Lind Company has several employees. One, in particular, who specializes in seismic retrofitting homes that have never been or are improperly attached to their foundation. We expect payment weekly based on completion of work.

"Al Lind has deep knowledge and experience in both home inspection and construction. He assessed the situation, explained things thoroughly, and offered more than one solution. One big benefit: he shared the kind of insider knowledge that unknowledgeable people (like me) need to move forward with confidence."

Gail M on August 2018

The Al Lind Company has several employees. One, in particular, who specializes in seismic retrofitting homes that have never been or are improperly attached to their foundation. We expect payment weekly based on completion of work.

"Al Lind has deep knowledge and experience in both home inspection and construction. He assessed the situation, explained things thoroughly, and offered more than one solution. One big benefit: he shared the kind of insider knowledge that unknowledgeable people (like me) need to move forward with confidence."

Gail M on August 2018

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Foundation Repair questions, answered by experts

You can seal a concrete slab by cleaning the surface, filling in any cracks, etching the surface, applying a sealer, and letting it dry. Concrete slabs don't typically need sealing, but you can use a topical concrete sealer if you notice signs of water damage. If you haven't already fixed the cause of the leak, then you'll want to repair the plumbing before you seal a concrete slab.

Addressing gaps and cracks reduces heat loss and improves energy use.

In most cases, yes, homeowners insurance will cover burst pipes, even if they run through your foundation. Not only that, but most home insurance companies will also cover any foundation repair you need done that resulted from the plumbing leak because your insurer will view the leak as an unforeseen and non-preventable issue.

Signs of structural damage include foundation cracks, roof leaks, bouncy floors, crumbling concrete, and cracked or leaning chimneys. Structural damage can make itself apparent in various ways, and sometimes, there may not be obvious signs. Inspect your foundation and roof annually to stay ahead of potentially serious structural problems. 

It can be safe to live in a house with minor foundation problems as long as the issues are checked and monitored by a professional. Minor cracks are rarely a cause for structural concerns, but signs of leaks, sinking, or bulging walls should be strongly scrutinized by a foundation specialist. Similarly, it's always smart to hire a professional when you're concerned about buying a house with foundation repairs.

The Startup, WA homeowners’ guide to foundation repairs

From average costs to expert advice, get all the answers you need to get your job done.