Foundation Contractors in Seattle

Seth Cunningham came for a site visit today at my rental home and was extremely professional and courteous. He explained the foundation water intrusion issues we were facing in depth and created a clear remediation plan at a fair price. I’d recommend Seth and TerraFirma to anyone needing building foundation services

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

I met with Seth and he represented the company very well.

Work was completed on time, on cost estimate, and very well done. All mess was carefully cleaned up after completion of the job. All in all an excellent experience. I highly recommend TerraFirma.

Had a great experience with Terra firma Mark Spandler was the tech I worked with he explained all the details on the foundation of my home he was very helpful. . I would highly recommend him for service.

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

Mark came on behalf of the company to give me an estimate of the work on my crawl space. He was honest and straight about all the observations he had. He gave me some ideas of how to reduce the cost , even part of the job I could do by myself based on his guidelines.

I got a bid done by TerraFirma today. After speaking with Seth today. He answered my hundreds of questions and cured and worries I had about foundation issue. He broke it down and explained the whole process from start to finish how to remedy my foundation problems. I like the fact that they were punctual. They were right on time at the scheduled appointment and wasted no time trying to figure out a solution for my problem. The prices He gave to me were really fair and the depth of knowledge was very useful. I feel very confident that TerraFirma should be able to fix my settling / cracked foundation problems.

TerraFirma did a great job with the earthquake update on our home. They were friendly and performed the work in the time expected and at the agreed cost.

TerraFirma had sent a very nice gentleman come out to my house, his name was Seth Cunningham. He was very polite and thorough about his job. Great service. I would recommend this service.