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TRUSTED BY LOPEZ ISLAND, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon43
    Verified foundation repairs reviews

Verified Reviews for Foundation Repair pros in Lopez Island, WA

*The Angi rating for Foundation Repair companies in Lopez Island, 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 Lopez Island, 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 01, 2025

Find Foundation repair specialists in Lopez Island

Avatar for Groundworks

Groundworks

18931 59TH AVE NE
4.68(
25
)
•Approved Pro

Groundworks

18931 59TH AVE NE
4.68(
25
)
•Approved Pro
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 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

18915 16th Ave S
4.44(
162
)
•Approved Pro

Groundworks

18915 16th Ave S
4.44(
162
)
•Approved Pro
Customers say: Super punctual
30 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

Sejant Foundation Restoration

17837 1st Ave S
No reviews yet

Sejant Foundation Restoration

17837 1st Ave S
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 Agate Northwest LLC

Agate Northwest LLC

3344 Sunny Cove Ct
No reviews yet

Agate Northwest LLC

3344 Sunny Cove Ct
No reviews yet
9 years of experience

Full Service General Contractor specializing in sewer, water, drainage, and site prep.

Full Service General Contractor specializing in sewer, water, drainage, and site prep.

Avatar for On Level Services

On Level Services

20781 W Jordan Rd
No reviews yet

On Level Services

20781 W Jordan Rd
No reviews yet
29 years of experience

Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.

Primary service is the re-leveling of Mobile Homes and the repair and refurbishing of Mobile Home foundations. Since Angies list doesn't offer this business category as an option I had to list other categories that got close.

Showing 1-10 of 13
Foundation Repair questions, answered by experts

New constructions need time to “settle” and sometimes, small hairline cracks occur as a result. Larger horizontal or “stair step” cracks, however, are usually a sign of a deeper, more severe issue. It could indicate an issue with the soil beneath the home, a problem caused by an overgrown tree, or another problem.

Most homeowner’s insurance policies will cover the cost of slab leak repair that results from a natural disaster, like an earthquake or a severe flood, or from a tree falling on your home. Damage from frozen pipes in your slab is also typically covered. However, your policy is unlikely to cover the repair if an invading tree root causes the damage or if it’s a pinhole leak that results from corrosion. You should contact your insurance provider for a full run-down of what they cover.

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.

If you don’t have any access to or knowledge of any area underneath your home, chances are it’s built slab-on-grade. You can also look for the concrete around the bottom edge of your structure; if it’s just a few inches tall, it’s likely a slab. If it’s more than that, has any windows, or you have steps leading to your main entrance, you likely have a different foundation style.

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. 

The Lopez Island, WA homeowners’ guide to foundation repairs

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

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