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    Waterproofing Specialists

    4.5 (8 reviews)
    Closed • 8:00 am - 5:00 pm

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    TerraFirma - Ryan Beckley, Owner and president of TerraFirma Foundation Systems

    TerraFirma

    (48 reviews)

    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.

    Hired to correct sinking floor throughout the home, to the point doors couldn't close or would…read morestick and could feel significant change in the floor height while walking. TerraFirma sent over an estimator, then scheduled repairs. They were done in less than one working day and provided photos. They laid down paper to protect the floor as they were working. Due to another issue found, had to reschedule a second day to come out and install a supporting beam in the crawlspace. Different crew but were as professional and clean as the first. Folks in the office were helpful and responded quickly. Would hire again if needed.

    Perma Dry Waterproofing & Drainage - Special camera to locate problems in the drain system.

    Perma Dry Waterproofing & Drainage

    (82 reviews)

    Because my basement flooded , I had Permadry install their system. That was 6 years ago, and it…read morehas worked flawlessly ever since. With their recommended annual maintenance and service, I've had zero issues. Their team is always responsive, professional, and reliable. I previously tried three other companies whose systems failed, so the difference has been huge. Thank you to Ryan and the Permadry team for your impeccable service. Highly recommend!!!

    From when we first called PermaDry regarding french drains in the yard and an improved sump system…read morein 2015, to a major basement flood mitigation project in 2020, and through our last issue-free annual maintenance appointment in 2023, we've always thought that these were the folks to call. We've recommended them to countless friends and relatives over the years whenever homeowners in Seattle inevitably need help dealing with drainage issues. We've sung their praises to people on forums seeking help finding the best company to help them deal with drainage and repair jobs. Never again. Even if we set aside the fact that our last annual service appointment took almost 9 months (with four reschedules and three no-shows) to actually happen, this company is no longer even able to bill correctly for work that has been completed. We've now gotten three invoices in a row that are not only the incorrect amount, but they're for a bill that we paid in full back in February. They're not even system glitches for an old bill in the system: someone literally created a brand new invoice for the wrong amount and for services that we've already paid for, and they did it after we paid in full. No one ever answers the phone. No one calls back. We just keep getting texts with this wrong invoice over and over. The last response we had about this was in an email on April 1st, and all it said was that Ryan (the owner) had recently fired the back-end staff person who'd screwed up all the scheduling for 2024 and that he'd asked another person to handle the invoices. No apology, no attempt to resolve, and (most importantly) no follow up since then from anyone at PermaDry to actually fix the incorrect invoice that we keep receiving. We've stuck with the absolutely terrible customer service for over a year now because we didn't want to invalidate the warranty we have for the work they've done for us, and we've tried to have patience since they've done great work in the past. At this point, though, it's probably going to be better in the long run for us to just let that go and move on to picking someone else for future household needs. Do yourself a favor and choose another company.

    Waterproofing Specialists - waterproofing - Updated September 2026

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