Oregon & Washington’S
top rated foundation
experts for 20 years

Received a quick and helpful inspection from Seth with much faster responses and more thorough information than I've received elsewhere!

Marcus from Terrafirma came out to service the crawlspace waterproofing system arriving right at the scheduled time. He was very friendly, courteous and professional. I highly recommend.

Marcus is probably the best TF representative we’ve ever had! We were so pleased with his kindness and professionalism- especially so early in the morning! He was very patient and answered all of our questions. Also did a very thorough job- all while keeping everything clean (which is no easy feat given he was under the house). 11 out of 10 Would definitely recommend!

Fernando and Eddie did a great job on our dual crawlspace project. Our floors are level, structure secure, and crawlspace is clean and pleasant - almost human livable! Wish we had done this sooner!

Terra Firma was referred to us by our general contractor. We had some settling beneath our front stoop and sidewalk. From our first contact through the completion of the project we found them to be congenial, courteous, and professional. They kept us informed of what they would be doing, the process that they would use, and the anticipated outcomes. We were given an estimate that did not change upon our final billing. The technician that did the work explained everything he did and made sure that we were satisfied before he left. They guarantee their work and made a follow-up call to confirm our satisfaction. I highly recommend TerraFirma.

Thorough assessment, competitive quote, good work crew, and great customer service. Scheduling, permitting, and payment were easy. I had 4 piers installed to stabilize a small workshop attached to my garage.

Superb service! Excellent work. We asked them to lift (if possible), support and seal our driveway to stop some puddling, along with placing a new walkway to our front door. The concrete work was very nice, beyond complaint. The driveway was a question mark to start with, but they did well. Upon leaving, they invited us to call if we needed more adjustment. We did, and found them to be immediately responsive and very pleasant. Upon leaving again, they repeated their invitation to call again. All personel overall were very pleasant and responsive. (I am not financially or personally affiliated with Terra Firma in any way!)

We called TerraFirma with a pretty significant problem. We had just purchased a home and were a bit misled on a couple of items. The basement and crawlspace were mold infested (which we did know). What we did not know was that at times of the year, there would be some standing water in the crawlspace. We also didn't know that the drain from the sump pump was actually underwater (adjacent lake), nor did we know the pool backflushed into that same line and actually would enter the crawlspace whenever that process occured. The crawlspace was unvented and unconditioned....the perfect storm of BAD! Our goal was to first remediate the mold and then resolve the issues that allowed the mold to grow in the first place. Enter Terra Firma. Tulane and Terra Firma stood head and shoulders above every other company I spoke with. It wasn't jus that they were going to fix it- we literally walked through every step and every product-I knew what I was buying before we started. The crew was professional, on time and did exactly what they said they would do and in the time frame promised. With Terra Firma, we waterproofed and encapsulated our crawlspace, we insulated the crawlspace, we installed new sub floor drainage with new sump pumps with battery backup to lower the water table under the house (that now drains above the high water line), we installed new structural floor posts where others had rotted, we installed a bypass for the pool overflow and we installed dehumidification and we are in the process of now conditioning the space. Terra Firma led the way and did an excellent job both on the communication and on the installation (at the price originally quoted!). I would highly recommend this firm for anyone with complex and challenging crawlspace issues. Great work and fantastic team from start to finish!Bruce McKee

Seth had been very knowledgeable and exhibited wonderful customer service when helping us with the beginning process of our new home's crawl space

Thank you Seth, for being so thorough during the inspection of our needs. Your explanation of what caused our problem and the process to fix it was easy to understand. We are looking forward to having our foundation issues repaired by Terrafirma.

A few days after moving into our home we noted some serious issues with our outdoor drainage.Over the course of just 2 days of rain in the Pacific NW, water was flowing into the garage and crawl space rather than away from the house.We needed an evaluation and a plan asap. Based on reviews and services available, a quick call to TerraFirma was the answer.I had an appointment within a few days. We were very pleased when Seth arrived and explained that, by the end of today’s visit we would have a detailed plan including the cost. As we walked around the entire foundation and yard Seth was open to questions and explained details of what he was noticing. Seth was also taking note of other potential issue that could be avoided with some preventive DIY care.The extensive evaluation resulted in great news. Although we knew it was going to be an expensive project, due to the labor involved, Seth presented an optimal approach for a permanent solution at a fair price.We were very happy working with Seth and TerraFirma.Steve and ToniShelton,WA

I was referred to John from Terra Firma when I was looking to have our foundation inspected. John was very friendly and knowledgable and came out to our house to measure and inspect everything. In the end he was able to put our mind at ease and did a great job of explaining different scenarios and what he was looking for.John even inspected the crawlspace while he was out and provided great feedback there as well. Overall we got a lot of good information and never felt as though we were being pushed into unnecessary services.I will certainly be reaching out to Terra Firma for any future needs!

one guy did all the work himself. I thought there would be a crew. it is a large driveway. He was a very hard worker and did an excellent job. The work was great but it sure costs a lot.

They were very thorough in their work and Tieran (?) was able to take the time to explain what they were doing. I was quite pleased.

For Seth Cunningham: "You never get a second chance to make a first impression." Terrafirma should be very proud to have Seth Cunnigham as their first impression. Punctual, professional, personable, and very knowledgeable. Seth assessed our crawl space and provided us with a thorough explanation (photos) of the situation, options (videos) and itemization (documentation) of each potential solution. He is a delightful young man who I would recommend without hesitation.

The Crew was great to work with, Region Supervisor did a great job, The lady on the phone was knowledgeable on the job process and has great communication style. The job turned out just has they described, we had our crawl space waterproof.

Jeremy did an excellent job. The Terra Firma process worked fantastic. It was well worth the money!

Excellent work on transforming crawl space. The experience with Terra Firma was outstanding from our first meeting with the technical specialist Andrew Fry through the completion of the project. The work crew was courteous and professional and did a fine job. Thank you Terra Firma!

Seth came out to bid a project, replacing old wooden posts with steel. He was on time and very knowledgeable. He took his time making sure not to miss any details, which I really appreciated. Can't wait to get the work completed!

Had a great consultation with Samuel - he showed me drawings and technical details right on the spot, and later responded quickly with a proposal. Looking forward to getting the work done with them!

I don’t usually do reviews but in this case people should know this is a first class company. Great communications and no selling you on something you don’t need. John was very professional, he spent time with us expanding what issues he did find, measured the level of the floors, inspected under the house and checked wall and foundation cracks. He also placed a blanket down to collect any dirt from entering and exiting the crawl space inside the house. I highly recommend John from the Eugene office and TerraFirma.

Professional all around and did a good job!

Prompt professional team, Sammy Ruiz and the install team - Tyler & Augie - were great to work with. The foundation repair was professionally done. Follow-up 09/13/2024, discovered the dehumidifier had been installed so that the drain line wasn’t working properly. Called TerraFirma and Marcus came out, quickly diagnosed and fixed the issue and cleaned up the water overflow. He was prompt, professional and did a great job. Highly recommend TerraFirma for their work!

great communications, professional teams and accomplished the targeted goal. they have my recommendation.

I can't recommend TerraFirma enough. They took away all of the stress of having a cracked foundation We bought a 1901 house in Carlton. We didn't know that the vinyl in the kitchen was hiding foundation issues. From the initial walk-through, scheduling, and price, it was exactly as they said it would be. Jonah, John A and Matt we're extremely professional and personable, it was a pleasure working with the team.

Our problem was that our front yard had settled, taking parts of our huge concrete front porch and sidewalk down with it. We watched the cracks in the porch get wider every year, and the sidewalk sloped down and away from the house.TerraFirma evaluated our situation and explained what was happening around our house. Then they gave a very detailed explanation of how they would make the repairs - even what they could and could not do - complete with a video demonstration.The young man who showed up to do the work was very courteous and professional. It was fascinating watching portions of our porch and sidewalk being raised up, leveled, and the gaps coming together.We are very pleased with the end result and have recommended TerraFirma to others.

I had Terrafirma come out to repair my broken and cracked patio. Ken Lomax and Dorian McDonald were fantastic. They were communicative, did great work and...

Seth visited our home to give us a quote on seismic retrofitting. He was on time (and made sure to call when he was heading our way), did a thorough assessment of our home, and was an absolute pleasure to work with. During the assessment, Seth patiently answered all of my questions. It was clear that he was extremely knowledgeable about the available retrofitting options and what best suited our home. The final proposal was easy to understand; it clearly outlined the work to be done, why it needed to be done, and how much various options would cost. Overall, it was an excellent experience.

We had great experience with Seth, he was polite, kind, communicative, and on time. Would highly recommend!

Thank you Marcus Thompson for your exceptional service and personable demeanor.

From the estimate to the finish Terra Firma personnel were top notch. We are pleased with their work. They used high quality materials, and the crew were hard workers.We had a small glitch, but they took care of it right away.

Seth was amazing taking care of my family while I was away from the house. He was very kind and attentive. Although we were not in his scope of work, he was very helpful in pointing us in the right direction. Thank you so much Seth!

Edit review: I have used this company in the past and will do so in the future. I had a poor experience with scheduling (largely attributed to the Microsoft outage) and a surprise quote adjustment on the day of install.However, after working with the management team, a remedy and resolution was reached that left me feeling this was an unfortunate exception to their general high-quality service and standards.4/5 stars due to some bumps in the road but they ultimately made it right.

6/25/2024Seeing I did a review 2 months ago.. I am unable to make a new one- here is the update for the work we did!6/21-6/24/2024 Work started and completed by TerraFirma!We do not even know what to say, THANK YOU WILL NEVER BE ENOUGH, You all went Way above and beyond expectations. I added pictures.To the Friday crew, to install a piering system, Jake, Aden, Steven (sorry if I spelled it wrong) what can we say, from start to finish this team was a well oiled machine, worked really really well together, put up with my husband Mark and I and all our questions and chit chat. The time that was taken to ensure EVERYTHING was going right, was explained and to ensure the safety of our home was just awesome. We had a lot of fun with these guys in conversation and jokes. When all the work was done, you could not even tell anyone was at the house working all day. These 3 great guys were some of the most fun and charismatic group we have had at the house in years. 🙂 Last but not least.... Jake you are a wonderful teacher to the crew, you have great leadership and a pretty awesome work ethic.Monday with Robert for the leveling of the driveway, walkway and stairs to front door. Working for TerraFirma for 2.5 years, Robert showed much skill and patience, as he worked alone and took his time to ensure that the proper amounts of polyfill was being pushed into all the tiny little holes he drilled all over the place. A tedious process and Robert defiantly has the patience for this part. I asked lots of questions and was pleased with all the knowledge. Again, a crew member that went above and beyond to ensure that what we expected was completed.Robert's ability to close the gaps, level a drive way that had repairs 2 times prior and failed and seeing the garage door with no gapping really blew our minds! We truly could not be happier with the outcome. Towards the end of the day, Jon, a field Supervisor came by to help with the concrete work to fill in the pier holes in the garage. Jon was just the nicest and in the short amount of time he was at our home helping, he was knowledgeable and we had great conversation while he helped with the perfect concreate work! Looks good Jon, Thank you!My family and I would like to say, the longest part was waiting for permits once the work started, it went quick, it was done RIGHT, we are truly 100% satisfied with the outcome. Hands down will recommend TerraFirma to anyone that we know needs this kind of work done on their home.THANK YOU, THANK YOU, THANK YOU!******************************************************************original post:My family and I are just getting started and can not wait to see what the end results are. For now I am rating what I KNOW with 5 stars and wish I could give more. If the work, the work ethic, the understanding and the compassion towards customers follows through this entire project the way it has just begun, I will tell you, I will brag on this company all day long!!I came across TerraFirma at the Tacoma Trade show March 2024. I spoke with both Samuel and Tulane regarding the issues at our home in South Hill Puyallup. I filled out a form, was contacted later the following week to schedule a FREE Estimate and had Samuel come to our home. Thinking we would just show him a couple things and Sam would be in and out in 30 mins, my husband and I were almost confused and very IMPRESSED with the 2.5 hour inspection, overview, breakdown of cost and mapping per say of the work area for our home. We found out and were educated on the scale of " oh S**t that is going on and that there was more to our project than a sinking driveway. Sam was beyond respectable and patient 😉 especially when listening to my concerns and questions on the what is next... and the cost of the what's next.We have now put down our deposit for work to be completed, due to permits that are needed, work can be up to 4 months out now, so Pierce county, please hurry... ;-)From our family to TerraFirma.... we look forward to working with you all soon.

We were able to get an appointment two days after calling and they were even able to come earlier after checking in to make sure we were available. Even though we were given some hard news about the repairs needed Jason did so in such a friendly and courteous manner. He was very patient with me and explained all of the proposal in detail. I really appreciate all of the time Jason took to help me today. It really made me feel like our house wasn’t just a job.

We had successfully used Terra Firma about 10 years ago, so when we had a water incursion this year in a different part of the house we naturally turned to them again. To address water coming through a wall in our daylight basement, they installed their Water Guard and Vapor Lock products, plus a sump pump system. The result looks solid and neat. Haven’t yet had a chance to test it in a downpour, but I’m very confident that if there’s an issue, TF will make it right. I know that because some of our rickety plumbing got dislodged during this process and started to leak. TF stepped up and sent 2 high-quality plumbers, and they found every issue and fixed them all. The install crew themselves were super-courteous and tidy, and they worked overtime to get the job done timely. Kudos to Antonio Rodriguez, Jacob Rodriguez, Rico Aguilar, and Jonathan Heredia.

Good experience results were shared and explained to us.

Seth came out and was very professional and personable. He did a great job sharing your product with us. We could tell he was knowledgeable about your product. We also could tell he enjoyed his job.

Seth did a good job analyzing my parking lot and giving me a quote.

I'd been putting off fixing our sunken garage for a few years. With the flooding seasons getting more and more distinct, it was time. i called a few...