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Explore Our Solution Center for Helpful Basement Waterproofer Articles

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6 Questions to Ask a Basement Waterproofing Contractor

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Unfinished basement
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What to Expect with Basement Waterproofing

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basement, flood, sump pump
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Five Tips to Protect Your Foundation

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Basement Waterproofing reviews in Chevy Chase

  • A
    I could not be more impressed with All Aspects Waterproofing throughout the project! Angelo Janouris initially came to inspect our damp basement and provide a quote for the work. He was extremely knowledgeable and explained the process in detail, answering all of my questions. While I usually get multiple quotes for a household project before choosing a contractor, I committed to All Aspects on the spot because I felt confident in what Angelo had to say, trusted AAW's reputation (thanks to many stellar Angie's List reviews), and liked the idea of the lifetime warrantly they offer on their jobs. They were able to work with my travel schedule, and gave me an appointment within about 3 weeks, which I really appreciated. The day of, Eliel and his 2 man crew were very prompt, and immediately got to work. Eliel has worked for AAW for 16 years, and was so professional and reassuring. The men carefully covered my entrance hall's floors with both plastic and drop cloths, and blocked off the areas of my basement where they weren't working with plastic sheeting to keep the dust contained. Eliel explained the various steps involved in digging the French drain, covering the walls with waterproof material, and installing the sump pump. The three men were in constant motion, working tirelessly and methodically throughout the day (I'm not even sure they stopped for lunch!) The end result was a beautiful job, and they left my basement tidier than when they arrived. I was amazed that they could complete such a difficult and complex project in a single day. I could not be more pleased!
    - EDA J.
  • A
    The team removed the shower stall to put in a drain along one whole wall of my house. Thankfully the rest of the wall is in an unfinished portion of the basement so it didn't affect any of the finished portion other than the shower in the bathroom. They came on time and worked quickly. They were done before the estimated time and left the basement clean. 

    For the past 15 days we have had rain every single day. Sometimes heavy, sometimes light but I have been watching the basement and there isn't any moisture coming in at all. They definitely did a great job. I would wholeheartedly recommend them to my friends. 
    - Cami W.
  • A
    Basement technologies was very responsive to scheduling concerns; very prompt in providing estimate and performing work.  Work was finished ahead of schedule.  Very professional operation.  Heartily recommend them.
    - Mark D.
  • A

    The firm's president, Randy Alverson, arrived promptly, assessed our damp basement situation, and explained in great detail the various steps of the waterproofing process.  He answered all of my questions and was so professional and reassuring that I broke my usual rule of getting at least 3 proposals for any home project, and decided to hire Chamberlin-Washington immediately.  Of course, I had done my homework and read the firm's excellent reviews on numerous websites including Angle's List, which added to my confidence in my choice. 

    The Chamberlin-Washington crew was terrific and worked so hard under very chilly and damp conditions. They first removed all of the plants/shrubs from our front borders, carefully wrapping the roots in order to preserve them.   An 8 + -foot trench then had to be dug along the front of our house, to the bottom of the foundation, in order to begin the waterproofing process.  They worked very carefully, addressing one half of the foundation at a time (including under our front porch, which was undisturbed). The crew realized that our home's exterior foundation was very rough and uneven, which meant that it wouldn't be a receptive surface for the waterproofing membrane.  Mr. Alverson came back to our house to explain the additional steps that were needed to smooth the foundation out before the waterproof membrane could be applied: grind down the rough foundation, install stainless steel wall ties, install wood forms and pour a 4" thick concrete layer to even up and consolidate the foundation.  He made sure that we understood what was going to happen, and explained that though this was an unusual step to have to take, they had done it before for with some older homes such as ours (built circa 1925).  This extra step of preparation added an additional 50% to the original fee, but it had to be done. Once the waterproofing layer was finally in place, they tested it by spraying water onto the foundation for an hour, with one person carefully monitoring the process inside our basement to make sure that no water was leaking through.

    Ultimately, Chamberlin-Washington was able to thoroughly waterproof the front foundation of our home, and we have had no further water problems whatsoever.  We were extremely impressed with Mr. Alverson and his crew -- very professional, punctual and thorough.  I highly recommend this firm to anyone whose home needs similar waterproofing work.  I should also add that Chamberlin-Washington honored the 10% discount for Angie's List members -- a nice touch.


    - EDA J.
  • A
    Our house is under contract and the buyers inspector wanted the basement checked for any water issues.  We were referred to Triad by our neighbor, who used their services and thought that they did a great job.  Mark (the owner) had a cancelation so he came within three days of our call.  He was honest, knowledgeable and very helpful - putting our minds at ease that we did not have any need for waterproofing.  We really appreciate his candor and honesty will definitely recommend and use TRIAD in the future.
    - Josh T.
  • A
    The technician arrived on time and gave us an expert consultation about how to fix our leaking window well. It turned out this is a job I can do myself or get a contractor to do for about $100. It simply involves replacing the window well, sealing the point of entry and making sure there is some drainage.
    I couldn't be more satisfied with their service and they did not charge me!
    I only hire people with all or almost all top ratings.
    These folks are highly recommended: professional, dependable and ethical from my experience.
    - Gordon B.
  • A
    Excellent planning, communication with us, attentively listened to our objectives and ideas about how to do the work, made excellent suggestions, always on time, accommodated our erratic schedules, all jobs done on time and under cost. All the various kinds of experts (plumbers, electricians, carpenters, landscapers, concrete-men, drywall installers, painters, etc) were very knowledgeable, skilled, articulate, polite, and accommodating. In other words -- very professional. Their costs were very reasonable. They got us much better prices for excellent-quality materials and appliances than we were able to get from vendors.
    - BRUCE R.
  • A
    They did an excellent job and had the most convincingly comprehensive approach to the problem of the three companies we interviewed. The work was done promptly and on schedule, they were very neat and careful, and we're very satisfied with the overall job.   They did an excellent job and had the most convincingly comprehensive approach to the problem of the three companies we interviewed. The work was done promptly and on schedule, they were very neat and careful, and we're very satisfied with the overall job.
    - Andrew M.
  • A
    The service was excellent. They were on time, cleaned up after themselves and everything was excellent. We got an estimate for the work, we scheduled the appointment, and they finished the project on time.
    - alma h.
  • A
    Multiple problems with leaks into basement. Dan was able to expertly diagnose our problems in a cost-effective and less disruptive manner than other bidders. His company designed and installed a surface storm water drainage system, regraded land around the house, as well as repaired drywall, built shelves and painted interior area after mold remediation.
     Archer started work in advance of contract start date, the crew was on-site consistently from start to finish, work was completed more quickly than expected with a very high-quality result.  Dan supervised his crew closely, and was accessible throughout the project, responding immediately to any questions that arose. We were entirely satisfied with the result and would enthusiastically recommend Dan and his company.

    - Susan G.
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Waterproofing Contractors in Chevy Chase

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