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    William J Malcolm & Son

    3.5 (20 reviews)

    Services - William J Malcolm & Son

    Plumbing inspection

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    1 year ago

    good job came on time and worked efficiently. Thoughtful chatty and yet professional

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    14 years ago

    We've been happy with Malcom Plumbing. They know a lot about Cambridge building and deal well with old plumbing.

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    Review Highlights - William J Malcolm & Son

    We had a major issue with the old plumbing of our building that so many other companies did not want to deal with.

    Mentioned in 2 reviews

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    Floros Plumbing & Heating

    Floros Plumbing & Heating

    (86 reviews)

    I had what I consider a small job: replace two non-working shut-off valves from my kitchen water…read moreline, and one for the toilet water line. I must have called eight different plumbers or companies. Three would not provide free quotes or estimates, and they would have charged outrageous service call fees that one has to pay regardless of whether one accepts their quotes. Three companies offered free estimates and quotes. One quote was so ridiculously high, and when I questioned the price they described that the price included "Isolating water supply to unit by means of water main; relieving the pressure...." and the list went on and on, including a ridiculous list of normal steps for any plumbing job, including checking for proper functioning and leaks, as if these were the reason for the high costs listed on their estimates. It was a bit insulting. Petros was the last person I called, and he was refreshing. He asked for pictures of the valves in question, and before he gave me any quotes over the phone, he explained the options for repair and recommendations. He described the cost of the different types of valves (spoiler alert---they are not that expensive)--and explained his fee. No, he was not cheap, but I so appreciated the no-nonsense explanations and upfront pricing. I knew what the job was going to cost me, and exactly how much of the cost was going to materials vs. labor. Old fashion-business model and transparency that I appreciate. When he came to the house, he was friendly, efficient and professional; he explained and showed me what he did and what was wrong with the valves that were broken; and left the premises clean when he was done. He is a two-man company/team, so I cannot attest to how it would work calling him for larger jobs or emergency jobs, but I will definitely use his services again in the future.

    I had my 75-gallon gas water heater replaced and had a very positive experience with this company…read more From the initial quote through installation, everything was handled professionally. Communication was clear, scheduling was straightforward, and the team arrived on time. It is most helpful that Mr. Floros uses text messaging to communicate. It makes the process so much easier. He explained the work in detail, including the equipment being installed and what to expect during and after the process. The installation itself was efficient and clean. They took care to protect the surrounding area, removed the old unit without issue, and ensured everything was properly connected and functioning before leaving. It was evident that they were experienced and followed proper installation practices. Overall, this was a well-managed, professional job. I would use them again and would recommend them to others looking for reliable plumbing work.

    William J Malcolm & Son - plumbing - Updated May 2026

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