Earthquake
Retrofitting

Terra Firma seismically reinforced my home to resist earthquake forces that could cause its wood frame to slide off its concrete foundation. Within about 5 hours, a Terra Firma crew of three bolted steel plates to the perimeter of my home, connected the perimeter stud walls to the concrete foundation walls. The installation was performed professionally, primarily on the exterior, with only only 6 of the 37 plates installed in an interior space where the of the foundation wall was several feet below grade, making exterior installation difficult, if not impossible. Terra Firma's plumber also installed a vibration activated gas supply shut off valve to my gas meter. I'm very pleased with the work and am hopeful that my home will remain habitable after an earthquake.

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.

The crew was friendly, knowledgeable and efficient! They retrofit the house to the foundation. The office crew got the information on the retrofit finished project with pictures in a timely manner. This enable me to keep the insurance company happy too! I would highly recommend terra Firma

This company is the gold standard for those interested in maintaining the health of their home. I tell you, ‘My home will never be the same’: The garage is level; We are earthquake proof; And, the will no longer be mold or mildew in my crawl space. The best part was, not just the satisfying outcome of the work done, but meeting & working with Walter. He talked to me so that I understood why parts of my home were on a downhill slope to disrepair. He drew illustrations so I could visualize each point he made: He was upfront & honest in his assessment of my 1972 home built in clay. If Terra Firma is the gold standard- Walter sure is the diamond. Get your free evaluation today & don’t forget to ask for Walt.

I needed to have 20 posts in my crawl space replaced and seismically upgraded. Bridget came out, was extremely helpful and knowledgeable and set up the project. Tony, harley, sebastian, came and did the work. They could not have been more friendly and professional. The work was done quickly and skillfully. Very excited to have this project completed and done so well!

We purchased a home in 2020 that had undisclosed water infiltration in the basement that resulted in all basement finishes needing to be demolished to clean up the water and remove mold. TerrFirma was the only company who was able to diagnose and address both water infiltration caused by poor exterior yard grading and drainage and also the interior water proofing needed. They also repaired and stabilized a very large structural crack in our basement foundation wall. In addition to doing all this work they were also able to fit earthquake retrofitting into the project while here when asked (after they showed up to start the project). The estimator, Bridget was very meticulous in her bid and made comparing estimates easy. Her experitse, flexibility, follow through and communication were superb. Working with Spencer Hunt, the project foreman, was so stress free. He was able to accommodate our request for earthquake retrofitting even though TerraFirma was extremely busy. He was excellent at explaining everything the crew was doing. He checked in with us through every step of the process to make sure we were educated about and happy with the work. We are so happy we used TerraFirma and would recommend them to anyone who needs drainage, foundation, concrete, earthquake and waterproofing work done in the future!

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!

I can't praise Terra Firma enough for their superb service throughout the process of having an earthquake retrofit done on my house!! Design specialist James Kershaw did a thorough assessment and explanation of the recommended work. Scheduler Jonah promptly contacted me with the work dates and coordinated with the plumber for related work. My OUTSTANDING team of workers with Jonathan (foreman), Nathan, Rom, Matt and Daniel worked tirelessly and efficiently and with cheerful and respectful attitudes. They exercised great care in protecting my home and in cleaning up at the end of the job. I HIGHLY RECOMMEND this company for their superb, specialized services!!

Excellent from start to finish. I am very impressed! The team who did the earthquake proofing were hard working, friendly, and professional. They did a great job of cleaning up after completing the project.

I called TerraFirma to inspect my foundation with idea I may have them retro fit it with bracing for earthquakes. Not an easy inspection either, tight crawl space in 105 year old house. While the company rep could have told me they would be happy to do it, he was very honest and told me that because my foundation was so old and not in the best of shape it probably wouldn't do any good if an earthquake were to happen. As the bracing would more than likely just pull out of the foundation. I was very impressed with the honesty of the company to tell me this rather than just shine me on and take my money for a job that wouldn't really do any good. So I can highly recommend this company for an honest review of your property. Rich Wolles. Eugene Oregon

I did a ton of research on TerraFirma when I decided to pursue getting a seismic retrofit in my basement, and then to clinch it, my Engineer neighbor spoke highly of them as well, stating they are top tier in their field. Jake's Crew came out today to review, and instead of selling me on a $10,000+ price tag, educated me on why they were unable to do the retrofit - my foundation is hollow concrete, their drilling would shatter it, and their alternative wouldn't meet my required needs. Honestly, I'm BLOWN AWAY how awesome Jake's Crew was - honest, direct, helpful, and educated me on my foundation. They even cleaned up under the porch for me, graciously turned my outside water off under the crawl space (thank you!!!). I'm so sad my foundation isn't able to be seismically retrofitted but I'm ridiculously grateful to Jake's crew for being so honest. I highly recommend TerraFirma - I read a ton of reviews on multiple platforms, and when they do make a mistake they fix it and make it right. They are full of integrity, and I'll forever remain impressed and won't stop recommending them to anyone/everyone!

This company was very professional, clean, and careful doing our earthquake retrofit in our crawlspace. They even worked out a schedule with another company that took down and then replaced the air ducts that were in the way, minimizing the time we were without heat. I suppose the real test will be after an earthquake... but from what we can tell, I would recommend them for your project.