All seasons was excellent to work with on a recent job. We had a complicated foundation situation…read morecaused by a plumbing blockage, not water table rising and they were the only company to take the time to properly understand the cause of the issue, what really needed to be fixed, and how they could help. That meant we got to the right fix for my needs vs a one size fits all solution that would've been more expensive and added risk of future failure if sump pumps failed. Their on site work was also professional and efficient, which I appreciated.

All Seasons was the way to go for us to get our crawlspace drainage problems fixed. All Seasons…read moreresponded quickly and the work was done quickly and efficiently and the problem was solved! We have gone through the wettest part of the winter and there is no longer any standing surface water under our house. The crew was very nice to have around and the exterior portion of the job was cleaned up each evening. Over the years, three out of four of our condo duplex units have had All Seasons fix drainage problems. We highly recommend these guys.

Bryce and his team at Seattle Drain Service did a fantastic job diagnosing our 1940s downspout and…read moredrain system that had gotten clogged after rainstorms. They carefully figured various issues (broken pipe on one downspout, a piece of downspout logged in another pipe and remaining kinds clogged), carefully fixed the issues and then ran the pipes clean to ensure everything worked and no new issues cropped up. They were quick and neat and reasonably priced especially compared to other companies who quoted just a one fix of a pressure wash which in our case would have caused more damage. Will use again if needed and definitely recommend.

Only time will tell how effective the repairs and improvements to our rather complex system of…read moredrains were, but Bryce certainly inspired confidence. He was always knowledgeable and demonstrative of what had been and needed to be done. Great guy to work with who actually does his work rather than the typical contractor bait and switch where the person who sells you on the job ultimately sends an inexperienced crew with no direct oversight. We felt in good hands!

Well, folks - if you're looking for the masters of epoxy floors who would go above and beyond for…read morethe project AND you as a customer, look no further than Triad! Not only did they do the project - but they also noticed some blemishes on the garage walls and fixed those for free! Six months later, the floor still looks new! And - the project came out slightly cheaper than all these other big companies that pretend to be small family businesses. Attached are some floor pictures + the complete remodel project (with Elfa+ cabinets). Yaroslav and his team were fantastic - go Triad!

We hired them to remove our old carpet and install LVP throughout the house. They were punctual,…read moreprofessional and diligent with their work. They even made sure our floor was leveled and moved our appliances where needed, so thoughtful! Highly recommended!

Misha and Slavik came to day to finish up--too cold last week and snow... did a great job slab…read morejacking my garage floor...some final touches to make it look better... Very satisfied.... Professional, competent, and left the garage cleaner than when they arrived!! Highly recommend

They never performed the promised work, and never gave me a refund. They are no longer accredited…read moreby the Better Business Bureau, have changed their location to Woodinville. I'm guessing new reviews are phony. In 2025, they likely performed promised work, but not now.

***Please note -- I updated my review from 1 to 5 stars. Terra Firma took the initiative to reach…read moreout 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.

DISCLAIMER: I did not use their installation or repair services. This review is about their…read moreestimation process and sales tactics. Their tech, Noah, was pushy with his proposals. He wasted time by having me watch a video of their process, and attempted to get me to agree to a proposal the day of - estimates running in the $15k-$50k ranges. Their estimates came in higher than their competitors by about $5k including Groundworks. When I informed him that I would not be using their services, he replied with, "What are your plans for your sagging floors? How do you plan to address this?" I have met with many contractors on this same issue, and no one else aside from Groundworks and TerraFirma has attempted to blow our issues out of proportion. However, Noah did offer to do a side by side comparison of the other offers with his, which I did not take. I ungraciously assumed it wouldn't have been attempt to price match, but to take another opportunity to push me more on his proposals. Don't use them, if you want to avoid fear mongering and overpriced services.

This company does excellent work and are very customer service oriented. We had them install…read moredrainage on the west and east side of our home. They dug up our grass to lay a drainage line and our friends that live across the street remarked what a nice job they did in replacing the grass. There was an issue of a damaged internet line but they worked closely with the ISP firm to insure the line was replaced the very same day by waiting on Ziply and helping them install the new line. Two months later they came back and changed out 3 grated clean out covers with ones that have filtering screening on them to address insects hatching out of the clean outs. Communication was excellent and they addressed all issues with promptness.

Thomas at Wu Construction was wonderful to work with. I was the buyer's agent on a transaction…read morewhere he had completed post repairs under the house for the seller. After closing, we asked him to take a look at a couple of posts that were touching the soil. Even though this was not part of the original scope of work, he went ahead and replaced those, along with a few others they found needed attention. That kind of good faith and professionalism was truly appreciated. Thank you, Thomas. Your integrity and willingness to go the extra mile did not go unnoticed. I would definitely reach out to them in the future.

We had pest and ant problems in a 1930's home we recently purchased. It had been vacant for some…read moretime. Part of the solution was to redo the crawl space. Andy Construction gave us a very reasonable quote for removing what was there and installing the vapor barriers, replacing spotty floor insulation, sealing cracks and new access doors. The crew was courteous, on time, and left no mess. We haven't seen a mouse since and the ants are getting under control. Our floors and home are so much warmer! We heartily recommend Andy's Construction.

I had Andy and his crew out to reduce vibrations in my floor. They came out and reduced the…read morevibrations so much for me. I would definitely hire them again in the future.

Sorry guys, I waited too long to write a review. Trayton, Ryan, and Laura do exceptional work. I…read moredon't want to get too wordy about the job, but it was a complicated garage floor with the discovery of an underground spring. It was looking bad and Ryan was standing next to me and said "we're gonna win this one". Just the kind of attitude needed with a difficult job. They were on time, efficient, clean, and worked extremely hard. In addition, they're just a really nice crew to work with. Oh yeah, they won.

I love EVERYTHING about this company. Their catchy name. Their communication. Their…read moreresponsiveness and patience with my questions. (I'm very inquisitive!) Their willingness to accommodate my requests. The personalities of their employees, from their office staff to the one's who do the hard work. It's apparent that they've built a company based on honesty and integrity. There are larger companies who do foundation repairs, but I don't think there's another company who could have done a better job for us. Dave