Get matched with top foundation, basement or crawlspace waterproofing / encapsulation pros in Fall City, WA

"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!"

"Water had always been a problem for my crawlspace, especially during raining and snowing season. Asking around, installing a French drain and a sump pump appeared to be the solution. I searched around and picked Insulation Co. Estimation without inspection seemed weird at first, but it made totally sense since the foundation layout is all there in the files. Jo had always been responsive, detailed and nice whenever I had questions. Scheduling was easy and Rafael and the team did a great and efficient job onsite. 2 months after the installation, we noticed that there was still standing water and they came back to install more pipes and gravels. We really appreciate the effort."

"4.5 stars overall for removal of concrete slab/stairs and pouring of new 10' long, 4 foot deep foundation wall. Result was excellent. Crew was considerate and trustworthy. It was expensive for me, but cheaper than the other bids I got. Communication was not great over email. There were a number of times I wasn’t replied to at all or got a partial response. I let them know and they said they’ll work on that. I recommend communicating via text instead which worked much better."

"I have a 1906 cottage in N Seattle, with an old porous foundation. Water came into the basement for the first time in 20 years. Another contractor bid the job at $12,000 after 3 site visits and almost a month. Andy came out to the house the same day I talked to him, and estimated the same job at half that price. He followed up with questions, asked about making another visit, came out again and saw that the drainpipe was disconnected at the top of the area being flooded. 75% of the roof's water was pooling against the house. He found a ladder and fixed it and isn't charging me a dime. So, no French drain, no Delta drain, no foundation treatment, no 50' of trenching, no $$$. Andy was timely, reliable, did what he said, and knows his stuff. He was a great communicator, and I feel so so lucky to have found him."

"This company is built internally the right way. Extremely professional and everything is in house. I repeat...IN HOUSE. If you have ever dealt with a remodeling company that employs outsourced labor, it can be a mis-quote nightmare. Other companies pointed me to handy men for this job not realizing I might need or want more than that in the future. Thank you"

"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."

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our

"Because of settling, the concrete porch was pulling away from my house. The TerraFirma sales rep who came out did a great job of explaining the Polyfil procedure. The crew was extremely polite and respectful, did a great job and the area was completely clean when they left. I would have no hesitation using TerraFirma again."

"I was stressed to the max thinking the home I just purchased had a foundation issue after being told so many things from different companies I turned to Angi’s list and I had totally forgot about my appointment with Rainpros Joel ended up doing the inspection and literally saving me from a stress stroke. He was patient and explained everything as clear as he could over the phone. I have a busy life so it’s not easy to work with me and Joel did just that. Even through a misunderstanding he was still very conscientious and quoted us a great price for the work done and gave me back some peace knowing the foundation wasn’t the problem."

"During periodic heavy rains we sprung a leak in our basement wall. I called Perma-Dry because both Angie's List and a plumber recommended the company, and I do not know the first thing about waterproofing a home. I scheduled a date and time for a salesperson to inspect the basement and provide me with an estimate. Mark was friendly and professional, and in his estimate he wrote that a sump pump may be required. What he did not elaborate in his inspection is the sump pump requiring GFCI, a term he wrote on the estimate but did not explain during the inspection. I am not an electrician and I have already established I do not know the first thing about waterproofing. What I came to learn during the scheduled work is that a) the crew confirmed a sump pump would be required, and that b) GFCI means a dedicated electrical line for the sump pump. We have a warbox-style home from 1942 and there is only so much we can do to the existing structure. Our washer and dryer are in the basement and now our washer will share an outlet with the sump pump, and I'm going to hope for the best. The work crew is nice but they do love to get animated about the work they are performing. I'm fortunate to work from home today and participate in phone conferences on mute so my colleagues didn't have to hear "BULLSH_T" being exclaimed loudly. Bonus use of the n-word when they returned from lunch. What would have been immensely helpful in the original inspection is Mark explaining, "We should check to see if you have the necessary electrical setup for the sump pump, otherwise you will need to hire an electrician and that could run $600." When I had Mark in our basement I was trying to think of every possible question to ask him before agreeing to an estimate and scheduling a service appointment. Where I failed in my exercise is that I didn't know the questions to ask during the inspection, and now the crew is installing a sump pump that I cannot reject because it's the only way I can achieve the goal of waterproofing the basement. A quick email to the company did not feign a reply from anyone other than a follow-up call with Mark who, professionally, explained he did his part to address his due diligence in the estimate to cover liability for the company. I explained to Mark that since I do not know the first thing about waterproofing (established) I did not know all the right questions to ask, and I am now having to authorize $825 for a sump pump in hopes that I don't need to hire additional servicemen to confirm the work is complete. The conversation was moot aside from him understanding my frustration. If you are a homeowner like me that is unfamiliar with waterproofing and home electrical, be sure to ask the salesperson if your home is properly set up to accept a required sump pump, or if you will need to schedule an electrician to wire your home ahead of the waterproofing work. If you are a homeowner like me that is unfamiliar with waterproofing, make sure you ask your salesperson for visual examples of the sump pump so you can adjust any configuration of storage solutions you had in your basement that must now be reconfigured due to the size of the pump and the space it will occupy. Because you don't know if there is more than one option for the sump pump (there isn't on the day of work). You can, however, hope the crew will not cut into existing pipes and do their best to work with the plumbing. FYI: the warranty offered for the drain system DOES NOT apply connection to an existing non-company installed drain line. Meaning that the sump pump required for completion of work is not covered by the drain system warranty when the crew connect it to your existing plumbing. The crew finished ahead of schedule and I was shown the results. The poured concrete will take 3-4 days to thoroughly dry; we can move our washer back at that time and reinstall all the hoses. I wish I would have known in advance how long it would take for the concrete to be dry but I guess that, too, was a question I was supposed to know to ask. The sump pump is already plugged into the wall socket but we'll need to rely on the battery powering the sump pump control box because we don't have another outlet to spare for the second plug. If we didn't have that outlet at the ready, I would be back on Angie's List looking for an electrician and I wish Mark would have had a checklist at the ready to make sure all of this was addressed before the crew tore open the basement floor with a jackhammer and then concluded a sump pump was necessary. The purpose of Angie's List is to reduce the risk of "Buyer Beware" for consumers, yet here is a business model that penalizes consumers because they don't know the questions to ask. I hope my experience will save you from a similar situation so you're not left frustrated with a company's reply being "I understand" on repeat."