very professional and reliable from the office person to the estimator and to the lead man,…read moreSchyler. All were very good and the job was completed and on time.

Living in a 30-year-old home for the past two decades we've had several phases of upgrades, but one…read morething has always been absent from a 10x10 slab on our back porch: a hot tub. So, this summer, we decided to move forward with the plan to be "soakin' for the holidays" three months away. The only thing standing in the way of that dream: the slab and its neighbor had sunk a few extra degrees, roughly three inches, at the far edge. We were going to need to shore up and permanently stabilize this slab if our hopes of the (3-ton when filled) tub were going to materialize. I made a quick call to Terra Firma and they had an estimator out within a few days. The pricing was reasonable and had the standard 50% up front 50% when complete-type contract. Casey arrived spot-on at 8:00am yesterday morning and began doing his magic (the process involves boring 1/2" holes through the slab, then using high pressure and heat to inject a molten expanding foam under the slab.) The foam is rated to support about 5 tons (10,000 pounds) per pound of foam material, and....100 pounds later that whole slab is back to following the prescribed slope perfectly, raising almost three inches on the sunken side. He did a great job and was a great rep for the company, explaining what little was left to explain. He kept me up on the status of the (4-hour) job as he went along--because our slabs had previously cracked, he had to gently lift it up in small sections so as to not have the sections separate further. Perfect job. 24 hours later and the patched holes have dried to almost-invisible (see photos). Unless you know what you're looking for, you can't even really see that repairs were made. Now I just need to fill in the pre-existing cracks with concrete patching caulk and we're ready to schedule the hot tub delivery! Yippee! Thanks Terra Firma!

Their prices are reasonable and they must be good because we have to wait over two months to get…read moreour job started.

Pascal and M Leon's office was great to work with. Scheduling was easy, the bid was fair, and they…read morecame when they said they would. They installed another post to support the north side of the house. The work was carefully done and Pascal fully explained the process and what his workers had done. My realtor recommended this company since she works with them often and finds that they do consistently excellent work. I would hire them again for additional foundation work.

I want to commend TerraFirma for their expertise in repairing the cracks in my driveway. Zack, Ken,…read moreand Tim are rock stars. I would recommend them to anyone looking for this type of service. Very prompt and professional. I would also like to thank Heather for everything she does for TerraFirma. Thank you again Rick Bacon

From the owner: TerraFirma Foundation Systems is trusted by thousands of homeowners in the Northwest to keep their…read morehomes safe, dry and stable. Foundation repair, crawl space and basement waterproofing and concrete repair backed by warranties that give you peace of mind. Contact us today to schedule a free evaluation!

They are a family owned business and the person who came out for the courtesy assessment was…read moreprofessional and highly knowledgeable. All of my interactions with their people (3) was always excellent. From Pat to John to Jean, all experts.

Good price, good communication. Prompt to get to work and worked very diligently until the job was…read morecompleted.

Great guys. Daryl and his crew were easy to work with. They did a repair job to our crumbling…read morefoundation. Would recommend.

Daryl came out for a quote and was very helpful in letting me know what my home needed, and, more…read moreimportantly, what it *didn't* need. Secure Seismic earned my trust by telling me that proposed work from a competitor was fully overblown and not necessary. If I have seismic needs in the future, I'll definitely turn to these guys. So hard to find honest vendors out there, and these guys seem like folks you can trust.

These guys are experts in their field, professional and courteous. I couldn't be happier. 10/10…read morerecommend.

Service seemed to be good until there was miscommunication. Then explanations changed?…read more We asked Your Crawlspace Guys to come back out after they worked on a wall, but it was still showing movement- we were told that they didn't know the problem was to the extent that it was(1 inch cracks appearing throughout as time went on in the summer) didn't know so much shifting would occur, and didn't have the tools needed to truly fix the problem, but that it would be a reoccurring issue due to the groundwater levels and yearly settling. Other back and forth continued for some time, and once a dissatisfactory review was posted online, their explanation changed. It changed to they knew the issues at hand, but they weren't hired for THAT, so they didn't fix it. Instead of acknowledging my complaints individually, the owner places blame on me and apologised for ME "being unrealistic" - AFTER THEIR OWN WORK INVOICE SAID IT WOULD DO SOMETHING THAT IT DIDN'T. They also claims they did the work for the sellers, and not even me and my partner....as the estimates, and invoices have my name listed on it, as well as my partners(name highlighted in green on attached photo). If they really didn't do the work for us, I would have expected him to hit back with "I couldn't find you in the system" like they have on other negative reviews. I also would have expected them to decline to even come back out to our house, if that was the case. The owner also claimed the company replaced a vapor barrier for me at some point, maybe they meant at closing?? but their response made it seem like they did it as some sort of courtesy sometime after the intial work was done. They either failed to communicate yet another thing, or they made up info to try to make a negative google review look better. We might never‍ know lol. They have so many positive reviews that our experience truly has us scratching our heads as to why our experience has sucked. If my partner worked on someone's car, but the same car came was back within 6 months, with even more issues, and all he had to say "sorry your car is failing, but I didn't know it was going to get to THIS extent, and I don't even have tools for this", he would still be held responsible in his position. It's been nothing but a headache for the last year, I can't go into my garage without feeling frustration and wishing we had gotten bids elsewhere instead of taking the route we did. I recommend going elsewhere for foundation specific issues(they do fine with crawl space work), especially if you're getting work done before closing/using escrow. That, or make sure to physically be present during all conversations and scheduling regarding what's needed so that questions can be asked and stories, blame and explanations can't be shifted later.