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    C & M Waterproofing

    5.0 (1 review)
    Open Open 24 hours

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    Services - C & M Waterproofing

    Moisture or vapor barrier installation

    Moisture or vapor barrier repair

    Moisture control inspection

    7 More Services

    Moisture control installation

    Moisture control repair

    Sump pump installation

    Sump pump repair

    Waterproofing inspection

    Waterproofing installation

    Waterproofing repair

    C & M Waterproofing Photos

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    Commonwealth Masonry & Paving - Natural granite walkway bluemist

    Commonwealth Masonry & Paving

    (61 reviews)

    Received a quote for a replacement driveway and build of a retaining wall on a Friday. Work started…read more the next Monday and Tuesday, with a break on Wednesday and delay on Thursday for rain, and completed on Friday. Wow! Quite a force of professionals on site for the wall construction (2 days) and the paving on Friday. All on-site supervision and workers were owner/family members.

    The guys were personable and professional however what I asked for just wasn't done. I had a small…read morestep and landing put over existing steps and we agreed they would replace "kick board" or base that was rotted, they just put new steps over it so I'll have to have someone else remove their work to replace the rotting board. I asked the day they finished as I wasn't home the day they installed and they said it wasn't necessary and would have to remove whole thing to do it, I'm not an A hole so I just agreed to pay the 3k because they were good people and I didn't want to inconvenience them but now knowing I'll have to remove everything just to replace that piece of wood is not sitting well with me. Overall it doesn't look great to me and I expected more for that price. I gave 2 stars instead of 0 because the 2 brothers were very professional and seemed like good guys. They were the most expensive quote and I decided to use based off reviews , photos and how great the owner was in person. I hate giving good people 2 stars but I have to be honest .

    Keystone Masonry And Chimney

    Keystone Masonry And Chimney

    (6 reviews)

    Two leaky chimneys (previously 'fixed' more than once) needed serious repair, but then due to…read moreadvanced rot the job quintupled in price and became a partial and full rebuild including work 3' under the roofline for one chimney. Gulp! James's crew worked for days in the heat and did what appears to be a fine and handsome job. Not being a mason I can't really evaluate their work, although it has poured since, and all is well, not the case before. Nice guys and dependable as to schedule. Everything on handshake; I will ask for at least some minimal paperwork and guarantee.

    Do not work with keystone masonry. We hired them to repoint the chimney and patio…read more After further inspection by them, the chimney was falling over so they needed to do a rebuild. While I asked multiple times for a new quote, I never received one and we were going to deal with billing at the end (not something I preferred, but my chimney was coming down). During the rebuild, they broke our skylight to which our main POC didn't answer his phone. We went out to buy the tarp to cover it up. The patio work was done poorly and the "rebuild" of the chimney (no new flashing) was another $2,500 (a made up number given quotes we received from other chimney / masonry services + that was the quote we got to fix the skylight with a new custom window (which they broke)). James was just trying to get out of the deal after breaking the skylight and rushed through the job as he was going to lose money. They aren't trustworthy and don't get scammed by them as I was; not a good hire.

    Keller Waterproofing - Foundation crack in poured basement wall

    Keller Waterproofing

    (18 reviews)

    Jim and his team at Keller Waterproofing exceeded our expectations on a recent basement project…read more While we had quotes from other local contractors, Jim's decades of experience shone through. We wanted a clean, safe, and dry basement - he talked options with us, and we ultimately went with a French drain, sump pump, and vapor barriers. His crews were clean, professional, and thorough. I cannot recommend Keller Waterproofing enough for any basement project - we have had so many people comment on the high quality of the work.

    After meeting with three different basement waterproofing companies to compare plans and pricing,…read morewe ultimately chose Keller Waterproofing. While they were the most expensive option, they worked with us on the price, and their proposal was by far the most comprehensive--clearly reflecting the value behind the cost. Keller was the only company to address not just the interior drainage system and sump pump, but also the exterior downspouts and full-house drainage. They also recommended installing a vapor barrier from floor to ceiling, which no other company suggested. This thoughtful addition was aimed at eliminating odors and helping redirect water from any future cracking--an extra layer of protection we appreciated. Their warranty is advertised as a "lifetime" warranty, though it's technically a 15-year transferable warranty. Still, it's reassuring to know it can be passed along to future homeowners. Once the project began, they uncovered an unexpected issue with our foundation (not surprising given the quirks of our house). The remediation added a significant cost, but after discussing our financial situation, Keller generously reduced the additional charge by nearly 40%. Impressively, even with the added work, they finished the project three days ahead of schedule. Throughout the process, their team was professional and respectful of our space--covering all belongings to protect them from concrete dust. They even went above and beyond by repairing our front sidewalk after running drainage underneath it, leaving it in better condition than when they arrived. As for performance, we haven't had enough rain to truly test the system yet (and hopefully won't anytime soon), but based on garden hose testing, the sump and drainage systems are functioning as designed. The basement already feels noticeably less damp and musty.

    Rescon Basement Solutions - Duct tape coming off after they came to fix the moisture barrier

    Rescon Basement Solutions

    (19 reviews)

    Rescon never called me back on 11/4/24 as they promised to look into what the heck is happening…read morewith my service or lack thereof. So I used my lunch break to call them back again. They redid the moisture barrier and left it in a unworkmanlike manner. They refused to come back and fix it. Why? They cancelled a job for which I paid a down payment without letting me know. Why? I was told we don't work on things we didn't install. Poppycock. Why give the estimate in the first place? And they HAVE worked on the bulkhead before, which they did NOT install! I called to ask why my work was cancelled and why they never came back to finish the job. I asked proactively if they were cancelling my sub pump maintenance appointment for next year, which they did, and never told me. They said they will no longer do business with me and nothing more. After I paid them %1,000s, being a customer since 2019. They installed 2 dehumidifiers, sub pump, back up battery, bulkhead moisture barrier and basement wall moisture barrier. John from the Hooksett office gave me a quote for work, see my earlier review, which they later took back. Huh? What the heck is going on with this company? They just keep repeating we don't do business with you anymore. If this is how they treat loyal customers, I wouldn't use them. Would you?

    RESCON came for the annual maintenance of my sump pumps (regular and backup). Mike P. was the…read moretechnician and he was great! He did the job and alerted me to the fact that there was something that should be repaired and also mentioned that the original sump pump which was something like 15 years old was in need of replacement at some point sooner than later. I don't like surprises so I asked Mike to get everything in order, including the new sump pump. He did what was needed. There was never any pressure to buy anything. He took the time to do the job well and I am appreciative of that.

    C & M Waterproofing - waterproofing - Updated May 2026

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