Basement Waterproofing Resources | Foundation Repair Company in OR and WA | Terrafirma


We take pride in our years of experience making homes dry, safe, and stable. From Ashland to Corvallis, Beaverton to Olympia, our Basement Waterproofing clients have given us great feedback.

I recently purchased a home that I knew had water encroachment in the basement. Terra Firma came and presented what can be done and I knew it had to be done. Tieran and his crew came in and did exactly what was explained to me. They answered all my questions and I feel very confident it will be a dry basement going forward. I highly recommend this company for any work that needs to be done to foundation, water issues, crawl space etc. Fantastic company!
We hiredTerraFirma to waterproof and redo our crawlspace. We live on a hill which means the crawlspace is on a hill, I am sure it wasn't the easiest place to navigate to get the work done. Heather was the projects coordinator and kept us informed of every step of the project, which we really appreciated. Fernando, was the foreman, and his work crew Felipe, Jorge D., and Jose H. were exceptional workers. This was a three-day project and they were always punctual, very polite, and worked extremely hard getting the project done. Everyone did an outstanding job, and we would recommend the workers and TerraFirma to anyone. Extremely pleased with the workmanship and the project was done on time. The McIntyre's in Oregon City
Fair quote and strong workmanship. They came in and got the job done quickly. Our basement issue seems to be resolved. I'd recommend TerraFirma!
Terra Firma did an excellent job waterproofing our basement. Their team was professional, efficient, and the results speak for themselves. Highly recommend Terra Firma for any basement waterproofing needs! Jonah did an amazing job during the sales consultation providing answers to all questions and for only what we needed. The crew of Rocky and Harley are awesome. They did such an excellent job and made sure to explain everything to me along the way. Thank you! 🙏🏻
I had a positive experience with vapor barrier application to my basement walls, a draining system install that wraps around the basement walls, installation of a sump pump, foundation crack repair, sealing/ vapor barrier install in a crawlspace.
Robert Carmona and his team were professional, thorough, and pleasant to work with. They did an excellent job leak proofing our basement - we're thrilled with the result! They also left the place better than they found it. I so appreciate their hard work. Thank you Robert et al!
As a residential broker in western WA I’m always interacting with different foundation & basement specialists. TerraFirma is the best I’ve come across. The team there, especially Seth, is top notch. I always get an accurate & reasonable solution from them regardless of the size of the job. I’m working with Seth on a project now & it’s been great. Highly recommend!
Our basement waterproofing job was completed on schedule the crew was professional and easy to work with. When we have other foundation or concrete work to be done TerraFirma will be our first choice. Jonah was a good coordinator and everything went smoothly,
TerraFirma has been great to work with overall on a big basement water problem I've been dealing with. Big thanks to Antonio R. and Gael O. for their work today - they were great!
Our house is built in the SW hills of Portland originally in 1938, with a 2003 addition. TerraFirma waterproofing product has been a significant update to a...