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    MD Waterproofing

    4.0 (1 review)
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    Moisture control repair

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    AA Action Waterproofing

    AA Action Waterproofing

    4.4
    (33 reviews)

    Check the dates on their reviews; most are old…read more I called and scheduled a free estimate. A day later, they rescheduled because one estimator was out of town. The new appointment was for the next week. When the day came, NO SHOW. I called and the lady told me that their other estimator was in Florida and asked to reschedule again. I said no thank you. How can they not even get estimations scheduled right. It's your first impression with the customer. Also, if someone is dealing with a basement flooding issue, this is not the kind of response you'd want to deal with. Do not recommend.

    Received an estimate and paid over $10K to waterproof basement (foundation leak) in February 2016…read more Biggest sell was the "Lifetime Guarantee" for materials and workmanship. Flooding immediately from the garage door. They refuse to fix it because Anne Arundel County installed the grate in front of the garage door, with a drain pipe leading to a sump pump just inside the garage. After 6 years of floods, I finally recognized the problem: Action had removed the drain pipe and replaced it with drain tile that cannot handle heavier rains, causing the grate to overflow and flood the garage. Action never documented their visits, so this summer I tried something different: I made an appointment saying I had additional work, not warranty work, done. When the inspector showed up, I let HIM identify the problem, pointing out the issue was the drain tile that replaced the County's pipe can't handle the load. The inspector then refused to honor the warranty--again--but offered to have an Action foreman and crew come out and "fix my problem" for $1,000 cash. Still nothing in writing. Wondering how "corporate" was implicated (was this unofficial policy--avoiding honoring Lifetime Guarantees, potentially saving tens of thousands in repeat work?, or would the owners be upset that its employees were performing unpermitted and unauthorized work for untaxed income?). I received a text with the name of the foreman coming on the weekend and waited. They arrived in company trucks and uniforms. I took pictures and told them to leave. I went to the police station and tried to file a complaint but they said to report it to the MHIC first. I did and, again, waited. Today, the MHIC rejected the complaint as being 3 years past the original work. Time to file that police complaint and hire an attorney. DO NOT RECOMMEND.

    Triad Basement Waterproofing

    Triad Basement Waterproofing

    4.7
    (29 reviews)

    It's easy to give a company a good review right after they finish a job. I think you learn a lot…read moremore about a company when you call them 12 years later with a problem. Triad Basement Waterproofing originally did work at our Gaithersburg home about 12 years ago. Recently, we discovered that the drain from that original system had clogged and our sump pump had also stopped working. I reached out to Triad and was honestly impressed with how quickly they responded. Within about 12 hours I had heard back from them, and Justin was at our house the following day. He replaced the bad sump pump and made sure everything was working properly. He then returned on Monday to replace the clogged drain. Justin was fantastic. What really stood out was his attention to detail. He was extremely thorough, took pride in what he was doing, and cleaned everything up so well that the area was spotless when he left. But the biggest reason I'm writing this review is that Triad stood behind basement waterproofing work they had done more than a decade ago. There was no runaround and no trying to avoid responsibility. They simply took care of the problem. After 12 years, that kind of service says a lot about a company. I wouldn't hesitate to recommend Triad to anyone looking for basement waterproofing or sump pump work in the Gaithersburg area.

    Triad Basement Waterproofing recently installed a Basement Relief System to address water pressure…read moreand flooding beneath my basement floor and behind walls during heavy rains. Mike DeGirolamo - the owner - during his assessment provided step-by-step explanation of what needed to be done to address this issue. He was very thorough and clear in his explanations. He did not try to 'upsell' or include items that were not necessary. Prior to work starting a timeline was provided. Timeline detailed team arriving over the course of 3 days and what to expect during this time. The Triad team - Michael, Justin and Roberto - arrived as scheduled on their assigned days. Before starting work for that day they again went over every detail of what they would be doing. Master plumber Justin Dorrier was amazing in his handling of the plumbing side of this process. His attention to detail and explanations clearly showed his professionalism and knowledge as a master plumber. I did much research and obtained multiple estimates from about 5-6 different waterproofing companies before selecting Triad. Triad was by far the company I was most impressed with. I highly recoommend Triad Basement and Waterproofing if you have any waterproofing needs. They are all (Mike, Tracey, Michael, Justin and Roberto) true professionals at what they do and were a pleasure to work with --- I wish I could give them 10 stars! Thank-you Triad Team!

    BMA Construction

    BMA Construction

    4.1
    (16 reviews)

    On the day he was supposed to come for estimate, he messaged me maybe 30 minutes before saying he…read morewould be maybe an hour late. I asked him if he could replace a corner brick for my ground patio, and touch up grouting around the bricks. I know nothing of concrete and bricks, that's why I needed someone. He said he was going to come Monday 09/23. He got the work done, and I tipped him roughly 13% on top of the estimate he game me. Two days later the one corner brick he replaced was good, but 3 nearby bricks cracked in half. That one stretch of grouting I wanted touched up was fixed, but new cracks formed as a result of the work completed. I messaged him 09/25 saying roughly more damage has been done than his work was supposed to fix. He asked if he could come Saturday 09/28. I said sure. It was beautiful day I would have preferred to goto the beach or something. I waited all day and afternoon and sent him messages. I didn't get a message until that evening that he wasn't going to come. Maybe he went to the beach for me! He asked if he could come Monday 09/30. I said sure, just park and do what you need. He never came just asked me what the weather was. So I took a screenshot of the weather for the next 10 days and sent to him 09/30 in the evening, then asked him on 10/03 when he would like to come. Today is 10/05 and I haven't received a message. Today is also a beautiful day, maybe he went to the beach for me!

    I hired this company to repair my chimney. While they did complete the work, the job was poorly…read moredone--I continued to experience water leaks through damaged bricks. I reached out multiple times to have the issue addressed, and although they promised to return on several occasions, they never showed up. They have since stopped responding entirely. Unfortunately, I'm back to where I started, out the money I paid, and with the problem unresolved. I strongly advise against using this company.

    MD Waterproofing - waterproofing - Updated August 2026

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