Get matched with top basement waterproofing pros in Chehalis, WA

"Had huge foundation problems at a project of mine on the waterfront. We used terrafirma to both waterproof the entire basement AND lift the foundation. 10/10 would recommend. extremely communicative, very knowledgeable, and even brought a crew in from Oregon to help us stay on schedule. Oscar and jorge got the job done extremely quickly and Seth was fantastic as my project manager."

"They did an excellent job on the foundation repair which is solid and dry they also done the paving work which was necessary it came out really smooth and a really nice finish I would highly recommend this company!"

"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"

"The workers were on time. Very efficient. They did a blower door test and found the air leaks and insulated these areas. Blew installation above the garage, cleaned out the crawl space and put new installation there and basement. Found a water leak from my toilet,Thank goodness. Covered everything in the basement and swept and cleaned up after. I would recommend them!"

"We had a foot of water in our crawl space after the snow and 6 in. of rain from the December 2021 storms. I had called several companies to come out to take a look and give quotes. Ethan from diversified was the 3rd quote we received. Ethan explained the issue, explained what they would do to remedy it, and answered all my questions. He sent me the quote which was very resonable. BE SURE TO GET SEVERAL QUOTES. ONE COMPANY QUOTED US DOUBLE OF WHAT WE PAID DIVERSIFIED. They were able to get a team out two days later. The team was on time, professional, and did really good work. We ended up needing a sump pump due to ground water coming up. They applied a mold application and completed the work in a day. I highly recommend these guys and did my research prior to having them do the work. I am very impressed and happy we chose them."

"These guys did a great job on the drain cleaning and explaining to me how the drains were connected beneath and outside my home. I felt like the price was quite fair. I had gotten an estimate to re-do a french drain outside my basement after that experience, and I told them I would get back to them in a few months due to cost. It was a good price, but repairs are repairs, and most of them are expensive. I tried getting these guys out again a few months later, but I had a really hard time getting in touch with anyone. I was happy with the work from before, for sure."

"So far so good. Rained hard last night and no evidence of flooding. We now have wall-to-wall carpeting so it better work!!"

It can be a daunting task looking for not only the right contractor for your job but also the right contractor for you. We completely understand what you're going through. We know every customer has different desires, different needs and different schedules. We're not only here to turn your ideas into reality but to make it a memorable experience every step of the way. Call us right now, no matter where you are in the planning process.

"We have never had a more positive experience Start To finish on any project we have ever done. Each and every person stepping onto our property was outstanding!"

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 Getting a quote for the job was very straight-forward with JM Plumbing & Mechanical.  I sent a message to JM Plumbing and Mechanical through Angie's List message feature.  I described the 3 problems and received a prompt response with a quote of $350.  Jerry and TJ arrived ahead of the scheduled time, and got right down to business.  They let me know the sequence they would be working on the issues and immediately shut off the water and got to work.  After the work started, I mentioned another problem with the water running in the toilet and Jerry said he would look at that as well.  They were prepared with the parts they needed for the initial repair requests, but needed additional parts for the toilet repair so went to Home Depot to get those and then returned and completed the shower handle, toilet repair, and outside faucet repair very quickly.  Then TJ got under the house, found the leaky pipe and caulked that.  That job alone was a big relief to get taken care of.  Considering the crawlspace under this house, I had no idea how much something like this would cost to have fixed, but it was completed by TJ like it was no big deal.  Before leaving, two more issues came up unrelated to my original request.  Jerry was very sincere in offering to check those out as well and did so in a matter of minutes.  I could not be more satisfied with the value I received for $350 and would definitely use this company again.    

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