Service Area

I am very pleased with the completed work raising the back door porch entry, they were on time, very polite and professional, had all the tools and equipment to do the job.

***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.

Mike, Steve and their crew from Terra Firma were outstanding. They were professional, on time and did some amazing work. I was very impressed with how they answered my questions and their quality of work. I would highly recommend Terra Firma for any of your foundation needs.

James and his crew were efficient, kind, and exceeded my expectations. My foundation was needed piers both outside and in the basement, yet they were quick and cleaned up. I even noticed a change in my home’s interior when it was fixed! Cracks closed up. They took care of the whole process, including permits and inspections. And, James communicated, including walking me through, clearly listening to my responses. I recommend TerraFirma, especially James who was the foreman on my job, especially to those who want to be respected, want to understand what is happening, and want good communication throughout the job.

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!

Good job it looks great and I would definitely recommend your company

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.

Walt listened to my concerns and did a thorough job of evaluating the foundation. When he finished, he took the time to explain what was normal settling, and what was concerning. He pointed out that I had a drainage problem around the foundation that needed attention, and might prevent the settling from becoming critical. I loved that he was not just out to sell me a service!!! I feel like I can trust his recommendations when I have him back to see if the new drainage solved the problem. Thanks Walt!!!

Five Star to the Aris's team who worked on site! My project was stuck and the boys drive all the way from Vancouver up to Seattle to rescue. When I met them for the first time, I was deeply worried because those boys look so young! However, I was quickly impressed because the young boys really rock! They are super friendly and polite, they are energized and work so hard, I can tell they are proud of their craftsmanship and really care about your property. Kudos to Brad, Aris, Jose and Rudy! For the overall experience, there was a huge gap between sales team and production team, be prepared that you may not get any material/product like what the sales person showed to you, I did a lot of research on their product and that was the main reason I selected them, however, I did not get any of the product with specification that were promised, so this is quite disappointing - but I understand this is not really sales or field technician's fault...

The foreman was very detailed oriented, gave good consideration to the job, and was very easy to work with. The work done was excellent and the crew left the work site in better condition than what they started with.

Noah was extremely thorough and explained his findings clearly with optional choices of services that we needed with the pricing. He was friendly, courteous and easy to talk to. We would highly recommend Terra Firma. Noah is a very valuable representative of the company.

We got an estimate on a leveling project from Noah last week. He was very competent, thorough, and knowledgeable. We enjoyed meeting and working with this personable young man.

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.

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

Zack, Andrew and Joey showed up every day by 8:30, worked their butts off & always left a clean work site... totally 5 stars for these guys. There was a 4th workerbee, but I never got his name & he was great too!

Bailey Mercer came out on time, which is the number one indicator of professionalism in my experience. He kept the conversation short and to the point. He did not try to upsell me on things didn’t need, and to that point, neither did the sales staff over the phone. Bailey did the measurements, with precision and finished at a reasonable time. I have confidence that when we decide to secure our foundation we will be using Bailey Mercer as our go-to expert when we call TerraFirma.

Everything was done well and efficiently, The team communicated well with me, and cleaned up after themselves. It was expensive, but I feel confident that the job was done well.

Great company. They have done several projects over the years. Always good work ethic! Hard work! Cleaned up, put things back, all good

Skylar was wonderful to work with. Was very professional and did a great job with raising our concrete pad.,

Fast response. Courteous, professional employees in all areas of the company. Clear explanations of what needs to be done to fix the problem.

Exceeded expectations in quality and time frame

Andrew, Zach, and Brent arrived and completed the job on time. They worked with our old house’s existing flooring.

The Terra Firma team of Luis Juarez, Jose V., and Jorge D. were very dedicated and thorough in the crawl space encapsulation project at our home. They worked long hours to get the project done well and on time- as promised.

Our experience with TerraFirma was excellent... contacts via phone, TXT and email kept us appraised of each step. Partick Dunn was quick to visit our site and bid the job in several sections for us to consider. Hillary Mills worked to conveniently schedule us to benefit their schedule and ours. Lastly, Schylar Powers spent a day and a half conscientiously explaining each step in the process... and doing a fine job. We're very pleased.

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

Bailey came out and did a thorough walk through, listened to my project plans, was very helpful and polite!

Professional service, courteous install crew, clean install, problem solved so far.

TerraFirma made a major error when fixing the foundation for the overhang of our Enumclaw Plateau Historical Society museum. The posts were not properly spaced, giving the front of the building an uneven appearance. When the error was pointed out to them, they admitted it, and apologized. They paid the repair costs without argument. According to a businessman on our board, this is an unusual occurrence. I want to give them kudos for their management acting with integrity.

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.

Overall, they did a great job. Very easy to work with very professional. The guys who came to my house were great. They were very friendly and very kind. The foreman was exceptional. The individuals I talked to on the phone were very professional, very nice. They worked with me and got things done when I could get them done. I would recommend them to anybody.

It took awhile to schedule due to them not having enough employees to cover Oregon and Washington. We had this done 10 yrs ago by them to the part that needed it and back then they didn’t tell us that the rest of the house could shift. I wish back then they could’ve put the piers all around the house so all they would have to do is just adjusted it because this time around the expense to do the whole house was something we didn’t expect and opted to do the part that really needed it the most. When we do sell our home, this will be something that we will have to disclose.

The crew that stabilized the back corner of my house was experienced, professional, efficient and communicative. Luke, Tyson and Kyle kept me informed on their progress, discussed recommended changes to the original work order, reviewed the results of their work and left the site clean.

Edit: Jan ‘26 Unfortunately this sump pump did not solve the problem after all, as water again came in after several days of hard rain. To be fair, TF did not guarantee a solution. I still think it is a good company but sadly my problem persists. Previous review from Nov 25 - Terra Firma installed a sump pump in my home that has solved my water incursion issues. This had been a problem for months. I had several different companies and professionals out to evaluate and try to solve the problem, from plumbers to leak detection companies and a few more. Most scratched their heads and said "this is a mystery." Terra Firma came up with this solution and it is working. I wanted to wait until we had significant rain to write this review - and after the past few days of pretty good rain, and no water coming in - I feel confident that the problem was solved. They were helpful, considerate and creative. They didn't try to sell me more than was needed. I recommend Terra Firma.

Excellent work - perfectly even walk now!

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.

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.

Tyler came out and did a great job of thoroughly going through the house and taking measurements and pictures to document what need attention. He walked me through options and gave his recommendations. While I had other bids, he kept in contact and checked in to see if I needed anything else. He did a great job working with my unique situation, never pressuring me to go in any other direction then what I comfortable with. Then Victoria was great is getting everything set-up and connecting me to the crew that would be out to work on the project. They were there promptly the day as scheduled, which I appreciated. They did a great job of walking me through the process and explaining everything that needed to be done while I was working. They were fast and communicated clearly throughout the process and made sure I was there when they finished up. They cleaned up better then I expected considering they had to dig up a lot of soil and replaced the fence without it even looking like it was moved. I was able to get back the 1/2 an inch or so back from the chimney moving away from the house, so I was very happy about that! I would highly recommend them again and if I need the house foundatio repaired, would definitely call them back. Time will tell if everything stays where it is, but so far it's been a wonderful experience. They were competitively priced but seemed like they wanted my business more then the others and made me feel valued.

Update: they sent someone back out to inspect the tree and work. Wouldn’t pay for someone to make the tree look nicer and mentioned they could give us a gift card or something for the trouble but never followed up with that. Ended up hiring an arborist on our own. Estimator Derek was very friendly and helpful. Had a much better experience with him than I did with Groundworks. Quote was better too and took about a week to get on the calendar. Was able to get on the schedule fairly quick and they even called with a same day cancellation the Friday before we were scheduled. Work that was done was okay, they were able to lift what we wanted on the main driveway and did their best in front of the steps. Unfortunately they used a jack, which I wasn't expecting, and ended up cracking the slab in front of the steps. It's in the contract that they're not responsible for this so nothing was done to mitigate it. Also a slab next to the large one lifted developed a large crack after they applied the stabilizing foam to the lifted slab. Other issue is that they said it wouldn't be an issue to have the truck down our driveway as they have more than enough hose to work with. Unfortunately they backed the truck right into our magnolia tree and when they were pulling away it ripped a large chunk of branches out.

Jayden inspected my house and gave a thorough report of the findings. I’m very happy with the service, and would call again if needed.

Professional, considerate and competent. The crew all the way to the office was a pleasure to work with. A major project was done. They made it look easy! Thanks again Conner Brad and James.