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Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

5.00(
7
)
Approved Pro

TerraFirma Foundation Systems

5.00(
7
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 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.

"They were great. They had a great communication. They exceeded our expectations."

Rachel K on February 2021

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.

"They were great. They had a great communication. They exceeded our expectations."

Rachel K on February 2021


Avatar for John's Waterproofing Co.

John's Waterproofing Co.

4.74(
47
)
Approved Pro

John's Waterproofing Co.

4.74(
47
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
402 local quotes requested

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"No."

Tracy W on January 2025

John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!

"No."

Tracy W on January 2025


Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.54(
68
)
Approved Pro

TerraFirma Foundation Systems

4.54(
68
)
Approved Pro
Customers say: Quick response
58 local quotes requested
20 years of experience

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.

"Walt is an amazingly kind and wonderful man, would recommend him 100%!"

Kelly W on October 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.

"Walt is an amazingly kind and wonderful man, would recommend him 100%!"

Kelly W on October 2025


Avatar for John's Waterproofing

John's Waterproofing

4.58(
185
)
Approved Pro

John's Waterproofing

4.58(
185
)
Approved Pro
Customers say: Super punctual
33 local quotes requested
51 years of experience

Since 1974, John's Waterproofing has been helping the PNW have dry and healthy homes. We specialize in below-grade waterproofing for crawlspaces and basements. In addition to this we also provide radon testing and mitigation, and humidity and mold control. We are proud to offer the best in the industry solutions to your homes waterproofing needs. Cost is determined by the job. CCB#15830 (503) 873-5650 [email protected]

"Chris and Joel were great, they were in and out and our water heater was rewired and sump pump wired in no time at all."

Dawn S on May 2025

Since 1974, John's Waterproofing has been helping the PNW have dry and healthy homes. We specialize in below-grade waterproofing for crawlspaces and basements. In addition to this we also provide radon testing and mitigation, and humidity and mold control. We are proud to offer the best in the industry solutions to your homes waterproofing needs. Cost is determined by the job. CCB#15830 (503) 873-5650 [email protected]

"Chris and Joel were great, they were in and out and our water heater was rewired and sump pump wired in no time at all."

Dawn S 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 Absolute Foundation LLC

Absolute Foundation LLC

5.00(
1
)

Absolute Foundation LLC

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

***WE DO NOT OFFER WATERPROOFING OR CONCRETE WORK**** ***WE REPAIR SETTLING FOUNDATIONS IN A UNIQUE WAY THAT MAKES THE PROCESS MORE CONVENIENT TO THE HOMEOWNER*** We are the Certified Helical Pier Installers for GoliathTech Helical Piles in the state of Oregon. Goliathtech has over the last 15 years become an industry leader in helical pile manufacturing and installation. We work with new construction as well as repairing old foundations that need some help. We offer free evaluations with fair and easy-to-understand bids on projects.

"Absolute installed a new foundation for our studio shed project. They were very professional, efficient and explained each step to me in detail as I wished. I highly suggest this vendor."

Sean R on November 2021

***WE DO NOT OFFER WATERPROOFING OR CONCRETE WORK**** ***WE REPAIR SETTLING FOUNDATIONS IN A UNIQUE WAY THAT MAKES THE PROCESS MORE CONVENIENT TO THE HOMEOWNER*** We are the Certified Helical Pier Installers for GoliathTech Helical Piles in the state of Oregon. Goliathtech has over the last 15 years become an industry leader in helical pile manufacturing and installation. We work with new construction as well as repairing old foundations that need some help. We offer free evaluations with fair and easy-to-understand bids on projects.

"Absolute installed a new foundation for our studio shed project. They were very professional, efficient and explained each step to me in detail as I wished. I highly suggest this vendor."

Sean R on November 2021


Avatar for Upfront Construction LLC

Upfront Construction LLC

5.00(
7
)

Upfront Construction LLC

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Upfront Construction LLC is a family owned and operated and is fully licensed, bonded and insured. Our business has shown to be choice worthy of becoming a go-to source for various interior and exterior residential maintenance. We are consistently striving to make the best experience in any given task. No task is to small whether it be a repair or total remodel. We specialize in basement and crawl space waterproofing. We offer free estimates!!

"This company was on top of getting the work done, provided clear estimates, and followed through with the repairs described. It was a multi-layered project that could have been confusing to track, but they made it easy."

Stephen A on October 2024

Upfront Construction LLC is a family owned and operated and is fully licensed, bonded and insured. Our business has shown to be choice worthy of becoming a go-to source for various interior and exterior residential maintenance. We are consistently striving to make the best experience in any given task. No task is to small whether it be a repair or total remodel. We specialize in basement and crawl space waterproofing. We offer free estimates!!

"This company was on top of getting the work done, provided clear estimates, and followed through with the repairs described. It was a multi-layered project that could have been confusing to track, but they made it easy."

Stephen A on October 2024


Avatar for Homers Excavation

Homers Excavation

3.67(
3
)

Homers Excavation

3.67(
3
)
9 years of experience

Owned and mainly operated by Don Bassetti. Homers Excavation has been up and running for a year and a half, but Don has been working in the industry for years. Please visit our Facebook page for reviews and photos! Homer's Excavation main services include, but may not be limited to excavation, land clearing, grass and stump removal, road site prep for buildings, horse arenas, cattle and vineyard fencing, tree removal, private logging, grass and bush removal, and trenching.

"Hired them for a basic residential addition foundation job and they completely screwed up every step of the process. They don’t know how to read plans or pour straight out flat foundations. They don’t pay their subs which is coming back on us now. They won't respond to any communications. A lien has now been filed on the project because of their lack of payment. Shocked at their ineptitude. Very friendly people, but they should not be construction business owners."

Bridget S on October 2020

Owned and mainly operated by Don Bassetti. Homers Excavation has been up and running for a year and a half, but Don has been working in the industry for years. Please visit our Facebook page for reviews and photos! Homer's Excavation main services include, but may not be limited to excavation, land clearing, grass and stump removal, road site prep for buildings, horse arenas, cattle and vineyard fencing, tree removal, private logging, grass and bush removal, and trenching.

"Hired them for a basic residential addition foundation job and they completely screwed up every step of the process. They don’t know how to read plans or pour straight out flat foundations. They don’t pay their subs which is coming back on us now. They won't respond to any communications. A lien has now been filed on the project because of their lack of payment. Shocked at their ineptitude. Very friendly people, but they should not be construction business owners."

Bridget S on October 2020



Avatar for 4 C's Company Inc

4 C's Company Inc

2.00(
1
)

4 C's Company Inc

2.00(
1
)
Customers say: Super punctual
31 years of experience

4C's Company, Inc. has been serving Salem, OR and the Willamette Valley area since 1994. We specialize in everything from conventional additions to complete interior or exterior remodels and everything in between. Whether you are in need of door and window replacement or a foundation to save an hold house or building, we can take care of you. Some of the services we specialize in include: Major home additions Whole house remodels Office remodels Excavation Foundation replacement or repair Historic building restoration Door and window replacement Site work for Manufactured homes Decks, patios and porches Roofs Dry rot repair Insect damage repair Disaster repair (water, fire, storm) At 4C's Company Inc., We can handle those special jobs that you just have to have right. If you are interested in something that is a little beyond the ordinary, give us a call!

4C's Company, Inc. has been serving Salem, OR and the Willamette Valley area since 1994. We specialize in everything from conventional additions to complete interior or exterior remodels and everything in between. Whether you are in need of door and window replacement or a foundation to save an hold house or building, we can take care of you. Some of the services we specialize in include: Major home additions Whole house remodels Office remodels Excavation Foundation replacement or repair Historic building restoration Door and window replacement Site work for Manufactured homes Decks, patios and porches Roofs Dry rot repair Insect damage repair Disaster repair (water, fire, storm) At 4C's Company Inc., We can handle those special jobs that you just have to have right. If you are interested in something that is a little beyond the ordinary, give us a call!

Showing 1-10 of 22
Foundation Repair questions, answered by experts

Although some concrete cracks are cosmetic, others can be more serious. Cracks wider than ⅛ inch or that extend through the slab are serious and can cause structural damage. If you notice these types of cracks in your concrete patio, contact a local contractor who installs concrete patios to inspect the damage and determine how to fix it.

Yes, you can replace a cinder block foundation. If a block foundation is too severely damaged to repair cracks and other issues, replacing the entire foundation is a viable option. The job will require a professional and can take between one to seven days on average to complete, depending on how complex the problem is.

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. 

Water damage to a foundation often starts as a slow leak or water vapor problem that worsens over the course of months or even years. The speed at which foundation leaks worsen depends on a few factors, including your climate and location, the soil composition around your home, the foundation drainage system you have in place, if any, and the type of foundation you have. Even if you have a minor issue that’s slow to develop, it’s best to have a professional address the issue immediately.

Yes, a house can collapse from severe foundation problems if left unchecked, which is why it’s so important to carry out routine foundation inspections and call for repairs at the first sign of an issue. Foundation cracks often take years to get to the point where your home is at risk of collapsing. Implementing a solution quickly, even if your issue seems minor, is always worthwhile.

The Grand Ronde, OR homeowners’ guide to foundation repairs

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