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TRUSTED BY PORT TOWNSEND, WA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon113
    Verified foundation repairs reviews

Verified Reviews for Foundation Repair pros in Port Townsend, WA

*The Angi rating for Foundation Repair companies in Port Townsend, 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 Port Townsend, 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 02, 2025

Find Foundation repair specialists in Port Townsend

Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

932 Industry Dr
5.00(
8
)
•Approved Pro

TerraFirma Foundation Systems

932 Industry Dr
5.00(
8
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
88 local quotes requested

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

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
32 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 Advanced Foundation Supports, LLC

Advanced Foundation Supports, LLC

22102 Spruce Drive
5.00(
2
)
•Approved Pro

Advanced Foundation Supports, LLC

22102 Spruce Drive
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 years of experience

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

Avatar for Square 1 Venture Group, LLC

Square 1 Venture Group, LLC

134 Madrona Terrace
4.97(
68
)
•Approved Pro

Square 1 Venture Group, LLC

134 Madrona Terrace
4.97(
68
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 years of experience

It doesn't have to be hard to maintain your property. You can turn to Square 1 Venture Group LLC for top-notch Crawl Space services or painting services. We'll take the time to understand your unique needs, then complete your job with expert skill and efficiency. Rely on us to update your residential l property in the Sequim, Port Townsend, Port Angeles areas. Clean outs, Insulation, French Drains, Structural Repairs, Foundation Repairs and more, I have over 35 years in the industry!

"I rate the job of cleaning our power washing our exterior house (great care to not damage the older painting, but cleaned the grime and dirt), and our walkways and driveways. Jon is a lovely man who was very prompt, estimate the time for the job perfectly, and left our old home and exterior in much better than I thought it might look. Don't have any hesitant to hire this company. The charge for the job was very reasonable. Thank you Jon, and I hope to see you again."

Dottie F on June 2023

It doesn't have to be hard to maintain your property. You can turn to Square 1 Venture Group LLC for top-notch Crawl Space services or painting services. We'll take the time to understand your unique needs, then complete your job with expert skill and efficiency. Rely on us to update your residential l property in the Sequim, Port Townsend, Port Angeles areas. Clean outs, Insulation, French Drains, Structural Repairs, Foundation Repairs and more, I have over 35 years in the industry!

"I rate the job of cleaning our power washing our exterior house (great care to not damage the older painting, but cleaned the grime and dirt), and our walkways and driveways. Jon is a lovely man who was very prompt, estimate the time for the job perfectly, and left our old home and exterior in much better than I thought it might look. Don't have any hesitant to hire this company. The charge for the job was very reasonable. Thank you Jon, and I hope to see you again."

Dottie F on June 2023

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.

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Foundation Repair questions, answered by experts

If your foundation isn’t properly square, there’s a chance that anything you built before detecting the issue may need to be torn down. A major miscalculation could leave some walls of your home unsupported. 

Periodic inspections and addressing drainage issues prevent further damage.

Always hire a foundation repair contractor the moment you suspect your house doesn't have a good foundation. The longer you wait to address foundation issues, the more likely they can lead to bowing floors, cracks in walls and ceilings, sticking doors and windows, chimney and roof problems, and more. Foundation problems can also let moisture into your home, leading to water damage, mold, and mildew problems.

Yes, engineers assess soil load-bearing capacity and provide construction guidelines.

There are many actions that specialists can take to repair a bad foundation. However, just like a car, a specialist will determine whether the cost of repairs is worth it in the long run. In many cases, repairs to the surrounding property—such as regrading your lawn or addressing lawn drainage issues—will also be necessary.

The Port Townsend, 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