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TRUSTED BY SUMAS, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon42
    Verified foundation repairs reviews

Verified Reviews for Foundation Repair pros in Sumas, WA

*The Angi rating for Foundation Repair companies in Sumas, 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 Sumas, 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 Sumas

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
22 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 Groundworks

Groundworks

4.44(
162
)
•Approved Pro

Groundworks

4.44(
162
)
•Approved Pro
Customers say: Super punctual
38 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

Avatar for Ram Jack West - Seattle

Ram Jack West - Seattle

5.00(
14
)
•Approved Pro

Ram Jack West - Seattle

5.00(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

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

Avatar for Roberts Contracting

Roberts Contracting

5.00(
2
)

Roberts Contracting

5.00(
2
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a concrete and general contractor, specializing in concrete services, repairs, pouring, driveways, sidewalks, patios, and more! We are licensed, bonded, and insured. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -- or-- click to schedule a free estimate today!

"It was a top quality and the service was above and beyond. I would use their service again in the future."

Kenny S on April 2021

We are a concrete and general contractor, specializing in concrete services, repairs, pouring, driveways, sidewalks, patios, and more! We are licensed, bonded, and insured. We guarantee your satisfaction and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -- or-- click to schedule a free estimate today!

"It was a top quality and the service was above and beyond. I would use their service again in the future."

Kenny S on April 2021

Avatar for Sejant Foundation Restoration

Sejant Foundation Restoration

No reviews yet

Sejant Foundation Restoration

No reviews yet

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.

Avatar for Dillercorp

Dillercorp

5.00(
1
)

Dillercorp

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Pile driving and foundation lifting on new and remodel construction projects. PIER TECH Helical piles, round piles, sheet piles, Certified welding. Pier, docks construction and water pile driving. Service Disabled Veteran Owned and Operated Business

Pile driving and foundation lifting on new and remodel construction projects. PIER TECH Helical piles, round piles, sheet piles, Certified welding. Pier, docks construction and water pile driving. Service Disabled Veteran Owned and Operated Business

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Foundation Repair questions, answered by experts

Tree roots don’t necessarily break through concrete on their own, but they can certainly take advantage of existing cracks, even very small ones. As roots grow, they expand the cracks, making them larger and leading to serious and costly foundation damage. It’s a good idea to have repairs on any foundation cracks you’re concerned about.

Sometimes cracked brick can mean a foundation problem, such as when the crack appears indoors and is vertical, or long horizontal cracks either inside or outside. If the crack widens at the top, then it’s safe to assume there is structural damage. Other things to look for are uneven floors, diagonal cracks indoors, and doors and windows that stick.

Around 25% of homes have foundation problems - it’s a very common issue. Foundation problems can range from very minor to severe and urgent. Call a foundation inspector to determine the severity of any potential issues you identify with your foundation.

Periodic sealing and cleaning to maintain appearance and integrity.

You can use a level or straight-edge to test for plumb foundation walls and a level slab, a level or a ball to check for sloping floors inside your home, and a hygrometer to look for moisture in your underhome area. Aside from these DIY tests, it’s important to get a foundation repair specialist or structural engineer to test the foundation to see if it’s supporting your structure properly. They can determine if the loads on the concrete are uneven or need reinforcement.

The Sumas, WA homeowners’ guide to foundation repairs

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

See all articles