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Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro

TerraFirma Foundation Systems

5.00(
10
)
Approved Pro
Customers say: Quick response
2005 years of experience
Free onsite estimate

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 TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro

TerraFirma Foundation Systems

4.51(
67
)
Approved Pro
Customers say: Quick response
2005 years of experience
Free onsite estimate

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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 2025

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.

"Had a sump pump installed. Haven’t had a repeat of the problem."

Edward H on December 2025


Avatar for Groundworks

Groundworks

New on AngiNew on Angi
Approved Pro

Groundworks

New on AngiNew on Angi
Approved Pro
2000 years of experience
Free onsite estimate

Based in Phoenix, AZ, we specialize in foundation repair, basement waterproofing, concrete leveling, and crawl space repair. Serving Arizona, we deliver reliable solutions for businesses and commercial properties. Contact us today!

Based in Phoenix, AZ, we specialize in foundation repair, basement waterproofing, concrete leveling, and crawl space repair. Serving Arizona, we deliver reliable solutions for businesses and commercial properties. Contact us today!


Avatar for SlabJack Geotechnical

SlabJack Geotechnical

5.00(
62
)

SlabJack Geotechnical

5.00(
62
)
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family owned and operated business with locations in Spokane, Greater Seattle, Tri-Cities and East Wenatchee WA. Our company's main office is in East Wenatchee, WA. We have been in business since 2011, our contractor license is #slabjg*833k2 we are fully insured (1,000,000) and bonded (12,000) and carry all the appropriate insurances to work on your property without any liability to you. Slabjack Geotechnicals polyurethane injection SlabJacking is far superior to last centuries Mudjacking. Less invasive, longer lasting, better aesthetically and with a superior warranty. We raise settled concrete porches, patios, pool decks, shop floors, driveways, sidewalks, garage and basement floors, if it's a slab we raise it! We also underseal slabs with voids, rocking driveway and warehouse slabs. If you suspect voids we have the exact material for the problem. We seal leaking culverts, large diameter pipe, Seawall and Bulkheads, and under-seal concrete ditches and spillways. We also seal many thousands of feet of control joints and cracks in concrete using the best Silicones, Polyurea's and Polyurethanes. Other common names for our services are "pressure grouting" "chemical grouting" "SlabJacking" "Polylevel" and "Mudjacking" We are licensed in the state of Washington and Idaho. We accept Visa, MasterCard and Discover in addition to Business & Personal checks.

"Justin and Dustin were very professional and did a great job with a panel lift and filling cracks in the HOA's concrete cart path."

Rick B on August 2025

We are a family owned and operated business with locations in Spokane, Greater Seattle, Tri-Cities and East Wenatchee WA. Our company's main office is in East Wenatchee, WA. We have been in business since 2011, our contractor license is #slabjg*833k2 we are fully insured (1,000,000) and bonded (12,000) and carry all the appropriate insurances to work on your property without any liability to you. Slabjack Geotechnicals polyurethane injection SlabJacking is far superior to last centuries Mudjacking. Less invasive, longer lasting, better aesthetically and with a superior warranty. We raise settled concrete porches, patios, pool decks, shop floors, driveways, sidewalks, garage and basement floors, if it's a slab we raise it! We also underseal slabs with voids, rocking driveway and warehouse slabs. If you suspect voids we have the exact material for the problem. We seal leaking culverts, large diameter pipe, Seawall and Bulkheads, and under-seal concrete ditches and spillways. We also seal many thousands of feet of control joints and cracks in concrete using the best Silicones, Polyurea's and Polyurethanes. Other common names for our services are "pressure grouting" "chemical grouting" "SlabJacking" "Polylevel" and "Mudjacking" We are licensed in the state of Washington and Idaho. We accept Visa, MasterCard and Discover in addition to Business & Personal checks.

"Justin and Dustin were very professional and did a great job with a panel lift and filling cracks in the HOA's concrete cart path."

Rick B on August 2025


WESTERN CONSTRUCTION SYSTEMS

4.85(
26
)

WESTERN CONSTRUCTION SYSTEMS

4.85(
26
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Not a franchise, Family owned and operated since 1987. CCB# 94222, Serving the entire NW. FREE Estimates/ Inspections. Western Construction Systems LLC. is a locally owned, family owned and operated specialty construction company serving the entire north-west. WCS LLC. Prides its self in high quality work which is micro-managed by highly trained crews to ensure the highest level of confidant work. WCS LLC. Has also worked internationally in South America and currently has crews in Haiti. We have worked as far south as El Salvador and as far north as Alaska. We are able to attend to small residential job as well as large industrial projects.

"Western Construction Systems came out and did exceptional work at my house! They went above and beyond my expectations! They were friendly, professional, and hard-working! They took care of all the issues that I had concerns with and then some! Their prices were fair, especially for the high quality of work that they did! I know I pestered them with questions, but they were patient every single time. Before I contacted them to have the work done, I had high anxiety about the drainage issues. When they were finished, I felt confident that there were no more issues. Peace of mind is priceless!"

Robyn S on August 2022

Not a franchise, Family owned and operated since 1987. CCB# 94222, Serving the entire NW. FREE Estimates/ Inspections. Western Construction Systems LLC. is a locally owned, family owned and operated specialty construction company serving the entire north-west. WCS LLC. Prides its self in high quality work which is micro-managed by highly trained crews to ensure the highest level of confidant work. WCS LLC. Has also worked internationally in South America and currently has crews in Haiti. We have worked as far south as El Salvador and as far north as Alaska. We are able to attend to small residential job as well as large industrial projects.

"Western Construction Systems came out and did exceptional work at my house! They went above and beyond my expectations! They were friendly, professional, and hard-working! They took care of all the issues that I had concerns with and then some! Their prices were fair, especially for the high quality of work that they did! I know I pestered them with questions, but they were patient every single time. Before I contacted them to have the work done, I had high anxiety about the drainage issues. When they were finished, I felt confident that there were no more issues. Peace of mind is priceless!"

Robyn S on August 2022



Providing sawing and drilling services since 1980, 25 service trucks dispatched daily. Call for free estimate. All major credit cards accepted. Look at the Media section for photos.


Avatar for Versatile Excavating

Versatile Excavating

5.00(
8
)

Versatile Excavating

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Versatile Excavatingis licensed, bonded and insured. We have over 32 years experience in specialty Bobcat services such as landscape prep and land clearing work. We’ve worked on large scale projects such as concrete demolition for mechanical contractors as well as large area, steep terrain brush cutting. We also specialize in small scale projects for home owners such as gravel driveway repair, concrete demo, arena tilling, brush cutting, and many more projects. We accept most forms of payment including major credit cards, PayPal, and checks. I am a cheater.

Versatile Excavatingis licensed, bonded and insured. We have over 32 years experience in specialty Bobcat services such as landscape prep and land clearing work. We’ve worked on large scale projects such as concrete demolition for mechanical contractors as well as large area, steep terrain brush cutting. We also specialize in small scale projects for home owners such as gravel driveway repair, concrete demo, arena tilling, brush cutting, and many more projects. We accept most forms of payment including major credit cards, PayPal, and checks. I am a cheater.


James Hardie Preferred Remodeler. Financing available. Locally owned & operated. In House Employees. Established in 2001. Additional contact name - scott daniels.


Avatar for Raudenbush Earthworks llc

Raudenbush Earthworks llc

5.00(
9
)

Raudenbush Earthworks llc

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Raudenbush Earthworks is in the industry of Site preparation, clearing, grading, drainage,driveways, landscape walls, water and sewer services and concrete flat work. Broom, exposed aggregate and stamped finishes. This is a solely owned company. I have 11 years experience in the industry performing many aspects of the trade.

"Jacob did a great job for us installing an RV slab. The price was fair and the workers were very professional. Consider these folks for your next project...I highly recommend them."

Bill B on June 2023

Raudenbush Earthworks is in the industry of Site preparation, clearing, grading, drainage,driveways, landscape walls, water and sewer services and concrete flat work. Broom, exposed aggregate and stamped finishes. This is a solely owned company. I have 11 years experience in the industry performing many aspects of the trade.

"Jacob did a great job for us installing an RV slab. The price was fair and the workers were very professional. Consider these folks for your next project...I highly recommend them."

Bill B on June 2023

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Concrete Mudjacking questions, answered by experts

Concrete leveling can last anywhere from five to 10 years or more, and it can serve as a permanent solution in some cases. If you treat the underlying problem, mudjacking lasts five to 10 years, on average, while polyjacking can last for 20 years or more. Speak with a professional about an expected timeline and any factors that could cause the original problem to return sooner.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

Address drainage issues, avoid heavy loads, and seal cracks to prevent future settling.

Many contractors offer warranties for their work. Confirm terms before starting the project.

Boring (also known as directional boring) is one alternative to trenching when installing underground utilities. The main difference between directional boring versus trenching is that boring doesn’t require digging or disturbing the surface. Instead, it involves creating holes or tunnels in the ground and then running utility lines through the openings. Boring is less invasive than trenching, but it’s also more expensive.

The Ethel, WA homeowners’ guide to concrete mudjacking services

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

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