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Verified Reviews for Foundation Repair pros in Cottage Grove, OR
*The Angi rating for Foundation Repair companies in Cottage Grove, OR 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 Cottage Grove, OR 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 12, 2025
Find Foundation repair specialists in Cottage Grove

TerraFirma Foundation Systems
TerraFirma Foundation Systems
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

TerraFirma Foundation Systems
TerraFirma Foundation Systems
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

John's Waterproofing
John's Waterproofing
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

Ram Jack West - Portland
Ram Jack West - Portland
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
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

Ram Jack West
Ram Jack West
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
On the Level
*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.
Madrigal Builders Corp
Madrigal Builders Corp
Contractor Handyman Home builder Siding contractor General contractor Roofing contractor Concrete contractor Custom home builder Flooring contractor Construction company
Contractor Handyman Home builder Siding contractor General contractor Roofing contractor Concrete contractor Custom home builder Flooring contractor Construction company

Upfront Construction LLC
Upfront Construction LLC
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
Rogue Concrete & Excavation LLC
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

Homers Excavation
Homers Excavation
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
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.

Staying ahead of foundation problems can save you time and effort. Learn how much foundation inspections cost and what affects how much you’ll pay.

Foundation repair costs can be tricky when you have a large repair on your hands. This guide walks through costs from small cracks to total replacement.

Crawl space maintenance can help improve indoor air quality and avoid structural damage. Learn how much crawl space cleaning costs and when to schedule it.

Foundation cracks can be a sign of serious foundation damage. Learn what causes foundation cracks and when you should call a pro.

Your home's foundation wall is one of its most crucial construction features. Learn what it is, how to build one, and what to do if it needs repair.

Unsure if a crawl space or a basement foundation is better? Learn about the pros and cons of each, how they compare, and which is better for your home.
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