Service Area

Fourth project completed by Terrafirma for our property and while not everything always goes according to plan, they make good and stand behind quality customer service. Today we had three amazing employees- Jorge, Juan, Alencio solve some tricky problems with a smile and positive attitude! So appreciate another solution!

Last year our house flooded due to rising ground water in a daylight basement that we had assumed was sealed and waterproof. Well it wasn't! We hired Terra Firma to do a waterproofing job that included drain lines below ground, drain track around the inside corners, and a sump pump. Our install team (Andrew, Zach, Joey, and Kayden) were amazing. They arrived on time every morning, worked hard all through the day, and were done ahead of schedule. They answered all of our questions and even helped us plan the best way to resurface our finished basement floor so any future water damage would not create long term damage. We could not be happier with Terra Firma and our amazing install crew. Five stars for sure.

Bailey came out to do an inspection of our foundation to let us know what shape it was in and what kind of work might need to be done. He was thorough and honest about the condition of our foundation so we could make informed decisions about next steps with our property.

My wife and I recently bought a house and after removing carpet in the addition, we found fairly large cracks in the slab. Not sure of the severity we called terrafirma. They sent Dan out. Super cool dude and very informative. He was able to give us a solution to our problem. They were also able to fit us into their schedule quickly which was nice considering we had bare floors that needed to be finished. I would highly recommend terrafirma and co!

I purchased two waterproofing systems from them a few years back. After the rain the past couple days its time to leave a glowing review. They did an interior drain in my basement and a separate drain tile system in my crawlspace. Both systems have been working flawlessly for 3 or 4 years now with zero water intrusion into my basement that I totally renovated after their install. They've also come out every year as promised for servicing. Thankful for connecting with them. After hearing the river of water enter into the pump and it go off every minute or so for nearly 12 hours yesterday, they deserve 5 stars. I would recommend them to anyone.

Very thorough and informative.

Bailey was timely and thorough in his assessment, estimate, and reporting on my inquiry about a foundation crack. Although I decided not to have any work done at this time I was pleased with their service.

Had TF raise the cement front porch of our house. The entire process, first contact, through the bid, through the job, through the billing, went smoothly. Their price was very competitive.

We were in the process of selling our house when the buyer's inspector thought our entire front porch concrete area and a supporting post needed to be replaced due to some minor settling of the concrete. I asked TerraFirma if they would send someone to come and inspect the area and get their opinion. Within a few days of my request, Walt Bateman, a System Design Specialist, came and did an inspection. After spending a lot of time measuring and inspecting the front porch area, Walt spend considerable time explaining to me that the buyer's inspector's recommendation was not warranted and he offered a reasonable and easier solution. I was very impressed with Walt's knowledge and his very simple and reasonable explanation of what he found. Walt was very easy to talk to and extremely personable. My experience with Walt and TerraFirma was extremely positive and I would highly recommend them for the services that they offer.

Communication prior to work was great. Project manager explained how the work would go. The day the crew showed up the foreman went over the work plan and asked if I had any concerns, which I did and he was able to explain and accommodate without any problems. The crew put down plastic to minimize any mess or marks on my concrete and cleaned up post project work. I’m very satisfied with the work and complement the crew.

Extremely professional, and above and beyond in their work.

Seth has made this process so streamlined and time efficient. I was concerned about my foundation issue, however he was able to assess the issue and present a viable solution with ease. He explained what had occurred and how to fix/ prevent such issues in the future in a way that left me informed and empowered to make informed decisions about going forward. He and his team has been prompt with communications and even sent photo updates of the work being complete, as I was out of town at the time. I really appreciated Seth going out of his way to make this the best experience possible, taking pride in his work and putting in the extra effort.

Arrived on time finished in one cleaned up everything

Excellent experience with TerraFirma. Noah Bryant arrived on time, sent a helpful reminder, and spent nearly 3 hours thoroughly inspecting inside and outside. He took photos, clearly explained crawl space issues, and offered honest recommendations with options—no pressure. Very professional and sincere. Highly recommend!

We recently had two wall systems installed for two homes in our HOA. While there were some scheduling challenges along the way, Rocky was incredibly supportive and accommodating, ensuring the entire experience was handled with care and professionalism. He truly went above and beyond to make sure the work was completed with exceptional craftsmanship and attention to detail. I highly recommend TerraFirma, and especially want to recognize Rocky and his partner Harley for the outstanding job they did.

Had Walt come out to Corvallis to assess our concrete slab foundation and he was very knowledgeable of everything he observed surrounding the home's foundation. He took time to understand our concerns and provided us with his solution to our problem. We ended up having a structural engineer come out to asses our home and get his recommendation on if the work was needed. Although we ended up not needing to have the work done, the structural engineer said that Walt's estimate on the work needed to fix the problem was correct and if our house truly needed it, then he would have recommended the exact same work be done. In the future, if we have any other concrete/foundation projects around the property, we will definitely be calling Walt again.

Sam was able to provide an excellent inspection and honest report of my crawlspace waterproofing needs. Didn’t feel rushed or pressured. Was able to educate me to better understand the issues and risks. Thank you so much Sam

Jaden was prompt, professional and courteous. I would recommend him to anyone who requires his services.

We had a great experience with TerraFirma. The crew that waterproofed our basement were Aris, Manuel, and Cristian, and they were super pro and cleaned up everyday after work. This crew was just great, they were friendly and worked hard every day. Give these guys a raise!

Excellent work - perfectly even walk now!

The crew were friendly and professional. The entire job only lasted two days and looks fabulous. The foreman kept us informed every step of the process We are very pleased with the results.

Noah with TerraFirma is very knowledgeable and walked us through all options. Answered our questions and I greatly appreciate all the visuals for options presented. I would recommend Noah to work with!

Start to finish, great company to work with. Pat was thorough and polite when doing our estimate. Michelle was so nice in handling the scheduling. And, Brooks and Louis were incredibly hard workers who completed the work efficiently and just as expected. Excellent communication through the entire process.

Very pleased with job done. The young man that did the work deserves all the credit. Prompt & professional.

Wonderful people from start to finish. Morgan, who surveyed the job, Tammi in the office and the guys who did the work were ALL TOP SHELF!!!

Brian was great, super friendly and professional. He gave us a very thorough bid after completing an extensive inspection.

Jason came out and worked on my sump underneath my house. He did a great job and everything was OK. Thank you Jason.

***Please note -- I updated my review from 1 to 5 stars. Terra Firma took the initiative to reach out and assess any next steps needed to correct the problem. Trust is 100% restored knowing that if problems come up they will take any action needed to follow up. I will also say that the work they originally did was actually to code, and we agreed that the moisture problems arose due to the nonstandard setup of my dehumidifier, NOT because of errors in Terra Firma's work. Thank you Terra Firma.*** Unfortunately, I have to drop a negative review in the interest of warning other folks that their work has gone downhill. I previously had an excellent experience with Terra Firma for management of a water problem in my crawlspace. I hired them without question again for my current property for management of moisture issues, and I didn't check their work upon completion as thoroughly as I should have. Unfortunately, about 1 - 2 months after completion of work, I discovered a large mushroom growing out of one of the structural posts in my crawl/basement. On closer inspection, I noticed that the dehumidifier water discharge line they installed was dumping less than a foot away from my foundation, corresponding to the exact spot the mushroom was growing. Moisture was the exact problem they were supposed to fix, but now they have created a severe structural problem secondary to moisture with the dehumidifier line dumping large quantities of water right next to my foundation. In other words, they created the exact issue they were purporting to fix by collecting the moisture and depositing it into my foundation. Once fruiting bodies are growing out of wood, this is an indicator that the wood is severely compromised and the fungus network has grown extensively. I now have a very expensive and serious problem to fix. I called to let them know about the problem, not sure if I will hear back from the coordinator/ the team who did the work. I am not sure if I would trust them to fix the issue after the damage they have caused, but I would accept financial remediation. If they take steps to make things right, I would update my review. I would not hire Terra Firma again for any crawlspace work, be it structural or moisture related because of the big problem they have caused. Again, just would like to warn others.

We had a really great experience with TerraFirma Foundation Systems from start to finish. Danny was our first point of contact and handled our bid, and he set the tone right away - knowledgeable, straightforward, and easy to talk to. From there, everything stayed consistent. Jorge Valencia led the crew with professionalism and clear communication along with Juan B. and Alencio who all did excellent work on site. You could tell this was a team that knew what they were doing and took pride in it. It was incredibly muddy under our house, and not an easy job by any stretch, but the crew didn’t complain once. They just got in there and got it done. What really impressed me was that when they finished, there wasn’t a single speck of mud left behind. That level of care and respect for someone’s home says a lot. The work itself was done efficiently and with attention to detail, and they kept us informed throughout the process. No surprises, no confusion, just solid, reliable work. What stood out the most, though, was something more personal. I have a young son with Down syndrome who is very curious. I was honestly worried he might be in the way, but the crew handled it in such a thoughtful, human way. They took the time to acknowledge him, talk with him, and make him feel included. It was incredibly heartwarming. He felt seen and heard, and that meant a lot to us. It’s rare to find a company that delivers both high-quality work and genuine kindness, but this team did both. I would absolutely recommend TerraFirma.

Just a real pleasure to do business with. The System Design Specialist is very professional. And very thorough. Hailey Newman Is AAA+++ amazing! Everything explained in easy to understand terms. I really could not feel more confident about my issues and my options.

Antonio, Jesse and Kamron did a very thorough job on leveling my manufactured home. They were very professional in the process and now my doors and windows operate like they should. Gentlemen, I want to congratulate you on a job well done. Thank you, Cameron Gibson

They showed up when they said they would, knocked out the project in a day as planned, and walked me through all of the end results in detail and answered all my questions. Great company! Thank you

Fantastic job leveling out settled patio concrete slabs. Very efficient work done in about 4 hours. One area had a 2” trip hazard between slabs, now nothing! 5 year guarantee but should last 80 years

Everyone, from the job estimator and office staff to that guys that repaired my foundation/driveway and installed the earthquake mitigation system, were very professional and courteous. Very happy with the final result!

Both crew's were on time. The crawlspace crew put down plastic from the front door to the crawlspace entrance in a bedroom. Work was completed on time, our closet doors reattached and the areas they worked in or went through left clean and tidy. The sidewalk crew completed their work in a day and even patched a crack we had forgotten to mention to the estimator. If TerraFirma also did crawlspace insulation, that would have been great, but I had to find another company for the insulation.

Seth C. was really helpful this morning. It has been raining so much lately and he was able to walk me through all the issues my daylight basement and garage can have and how TerraFirma fixes them. Really appreciate you--/thanks so much Seth

Great experience from start to finish. Communication was clear, service was prompt, and the work was done right the first time. Everything was explained in a way that made sense, and the space was left clean and tidy afterward. You can tell they take pride in their work and care about their customers. I would absolutely recommend them and would use them again without hesitation.

Very impressed with the person who came and did a thorough inspection. He provided multiple options and estimates. I had a few jacks placed under the house after noticing structural changes in my home. The team that came to do the repairs worked so well together, didn’t make a mess and were very professional. I was happy with everyone I worked with.

excellent customer services, excellent communication and services, the Best in the northwest

We had an excellent installation on a fantastic crawl space waterproofing job. We are on the northern Oregon coast and a few feet from the sand so we get a lot of moisture under our 1940s home. We decided to invest in the TerraFirma product after a great meeting last summer with Don as we were taking on a major house renovation and decided we would do what is best all at once. We are very happy we did as the product is a game changer for the health of our home and our next generation. We pick up some great additional waterproofed storage space too in the end. The install process was efficient, and we had three outstanding guys working our job. Antonio, Jesse and Cameron deserve a big shout out. They spent time each day we dropped by to educate us on what they did that day, show us every aspect of the job and took great care to be hospital-like clean. Sometimes not-so -ice people do very good work, and sometimes really nice people do shabby work but in our case with TerraFirma, we received an excellent service from very nice guys. So glad we found Terra Firma!