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TRUSTED BY COTTAGE GROVE, OR HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon74
    Verified foundation repairs reviews

Find Foundation repair specialists in Cottage Grove

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 TerraFirma Foundation Systems

TerraFirma Foundation Systems

4.54(
68
)
Approved Pro

TerraFirma Foundation Systems

4.54(
68
)
Approved Pro
Customers say: Quick response
57 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
34 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 Ram Jack West

Ram Jack West

4.80(
54
)
Approved Pro

Ram Jack West

4.80(
54
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 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. Additional contact: Kenneth Marquardt.

"This contractor is highly skilled in their trade. From the top of the organization to the bottom of the organization, everyone was courteous, attentive, and professional. Their work was deployed quickly and well organized. Over the past decade, my organization has completed fourteen (14) complex and successful stabilization of foundations. As needs arise, we will likely continue to work in collaboration with Ram Jack West."

Frank G on July 2023

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. Additional contact: Kenneth Marquardt.

"This contractor is highly skilled in their trade. From the top of the organization to the bottom of the organization, everyone was courteous, attentive, and professional. Their work was deployed quickly and well organized. Over the past decade, my organization has completed fourteen (14) complex and successful stabilization of foundations. As needs arise, we will likely continue to work in collaboration with Ram Jack West."

Frank G on July 2023


On the Level

No reviews yet

On the Level

No reviews yet

*Mobile/manufactured And Stick Built Home Releveling Service. -Is your home unlevel, do you have doors and windows that stick or windows that don't open and close properly, do you have cracks in your walls or floors that creek? If so your property may need to be releveled. With over 7 years experience we can come out and evaluate your property and give you an exact reading of the entire structure down to a 10th of an inch with a quote and time frame of what it would take to fix it . Although Foundations is what I specialize in, I do a wide variety of other contractors work as well, including but not limited to drainage systems, roofing replacement and repair, plumbing, drywall installation and repair, concrete, vinyl and wood flooring, carpet installation and removal, windows, custom decking, fencing and more. I have been in the construction business for over 15 years and have yet to have an unhappy client.

*Mobile/manufactured And Stick Built Home Releveling Service. -Is your home unlevel, do you have doors and windows that stick or windows that don't open and close properly, do you have cracks in your walls or floors that creek? If so your property may need to be releveled. With over 7 years experience we can come out and evaluate your property and give you an exact reading of the entire structure down to a 10th of an inch with a quote and time frame of what it would take to fix it . Although Foundations is what I specialize in, I do a wide variety of other contractors work as well, including but not limited to drainage systems, roofing replacement and repair, plumbing, drywall installation and repair, concrete, vinyl and wood flooring, carpet installation and removal, windows, custom decking, fencing and more. I have been in the construction business for over 15 years and have yet to have an unhappy client.



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


Rogue Concrete & Excavation LLC

5.00(
5
)

Rogue Concrete & Excavation LLC

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

In need of a home foundation and excavation services? Look no further! Rogue Concrete & Excavation LLC provides a full line of residential and small commercial solutions.. We strive to provide you with prompt, quality assistance.

"It was awesome. They were professional."

Warner C on April 2020

In need of a home foundation and excavation services? Look no further! Rogue Concrete & Excavation LLC provides a full line of residential and small commercial solutions.. We strive to provide you with prompt, quality assistance.

"It was awesome. They were professional."

Warner C on April 2020


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

Showing 1-10 of 33
Foundation Repair questions, answered by experts

Yes, it is normal for a block foundation to crack. Some block foundation cracks are more serious than others and indicative of a larger structural problem. On the other hand, minor cracks may not be of immediate concern but should be monitored. Regardless, foundational cracks are not an uncommon response to wear on a structure from time and weather.

You can strengthen a weak foundation using a few different foundation repair methods, including underpinning, slab jacking, foam jacking, installing carbon fiber support strips, or using a sealant or epoxy crack injection. It’s worth noting that the best way to strengthen your foundation permanently is to fix the underlying issue first and then use a permanent solution to reinforce it. If you’re unsure who to call for foundation repairs, a foundation repair contractor or structural engineer can help find the best solution for your home.

Home foundations are designed to last a lifetime when properly constructed and well-maintained. A poured concrete slab can last 200 years, while concrete blocks can last 80 to 100 years. A pier foundation can last about 75 years. Brick or stone walls can last 100 years or more.

Minor slab leaks normally take around three hours to access and fix, provided the leak is in an accessible location. However, a more extensive leak or a leak in a hard-to-reach location can take several days to fix, depending on the resulting damage. You might also want to consider the timeline for the build-back if the leak damages building materials like flooring or cabinets, which can take several weeks, including delivery of the materials.

Whether or not repairing your foundation is worth it before selling depends on the extent of the damage, the cost of the foundation repair, and your timeline for relocating. If the damage is major or structural in nature, chances are you’ll sell at a higher price if you take care of the problem beforehand. You should consider the cost of the repair first, though, as laying out thousands might not be possible with your budget. Additionally, if you’re in a rush to relocate, you might want to repair before selling so as not to limit your buyer pool.

The Cottage Grove, OR homeowners’ guide to foundation repairs

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