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    C & M Waterproofing

    5.0 (1 review)
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    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.

    Kings Paving & Masonry - Completed Chimney

    Kings Paving & Masonry

    (19 reviews)

    Financial District

    After some gusty days, I found our chimney's rain cap in my backyard, which was the push I needed…read moreto look into finding a contractor for long overdue work on our chimney and front steps. See the before pictures for the chimney, I don't have one handy for the steps, but the mortar was missing from between a lot of the bricks, and the limestone slabs were wobbly and not adhered to the step anymore. Chris responded to the request quickly and came out for an assessment, providing estimates both for a repair and a full rebuild of the front steps, and a repair of the chimney. Both very reasonable and in line with estimates from other businesses. We spoke last Friday, Chris had the formal contracts to me by Sunday, and the team was here first thing Tuesday morning working on the steps. They worked quickly but thoroughly, and were on to the work on the chimney by mid-day Wednesday. Once they were up there, they noticed some issues that weren't visible from the ground view, and Chris walked me through it with the photos and quickly got a revised estimate for what it would look like to do a rebuild of the chimney versus the repair, while also indicating that they COULD still do just the repair, but recommended rebuilding, since he knew we'd be looking to also redo the roof soon. They managed to do the full take down of the chimney to just a few bricks below the roof line and rebuild it back up by the end of the day Thursday, and came back Friday just to install the rain cap and clean up the the materials from the demolished chimney and stairs. Our new steps and chimney look great, and I'll definitely be keeping Kings' contact on file for paving/masonry/foundation work we might need in the future!

    The owner will tell you anything to get your money. She is a liar and a phony. The dates you get…read moreare not even close to when the work will be done. Caveat Emptor! Anywhere but here!

    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 June 2026

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