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Customers of Excel Plumbing and Heating mostly don't write about the company — they write about LB, named in seven of the ten reviews on its Google page. The shop works out of Ashmont Street in Dorchester and covers residential and commercial plumbing and heating around greater Boston: water heaters, leak detection and repair, and boiler work. The emergencies are where that shows. A July 2023 customer found their old water heater leaking on a Thursday night, booked online, and said LB arrived exactly on time the next morning, diagnosed that a new unit was needed and started straight away. In an October 2023 review, a household whose heating failed described a quick diagnosis, a walk through the options, and both units replaced in two days. A January 2024 reviewer called him out on an emergency job and said it was done right. The other thing that comes up is people calling back. A homeowner writing in April 2024 said LB had been their go-to for a few years, across various repairs in their home, and put the communication alongside the work. A December 2022 reviewer framed it as a choice of scale — they wanted away from the larger corporate plumbing companies around Boston and pointed people to LB's small business instead. First-time homeowners in a September 2021 review said everything was explained clearly, and a July 2021 customer had a gas stove taken out and a new one installed. Its Google page shows a 5-star average from 15 ratings, and the written accounts behind it run from 2021 to 2024. For a water heater that has quit, a boiler that won't fire, or a plumber you can call again next winter, this is the kind of small shop those customers kept going back to. Ask what a replacement price covers before the truck rolls, get the scope in writing, and confirm the Massachusetts plumbing licence and insurance.
LB has been my go-to for a few years now. He's done various repairs in my home and he always delivers great service coupled with awesome communication. I continue to go back to him over the years because I trust him and can rely on him. I recommend him to anyone who needs a plumber.
Lb is a legend. He came to the rescue on an emergency job. Very well mannered and professional. Got the job done right. Thanks LB
LB at Excel Plumbing and Heating is the man. He is responsive and extremely professional. Our heating system failed and he had it diagnosed quickly. He explained our options and we ultimately went with a full replacement. He had both units done in 2 days. Thanks so much LB!
On a Thursday night I noticed our old water heater had been leaking, then quickly found Excel online and had a booking for the next morning. The technician LB was at our house exactly on time, diagnosed that we needed a new unit and started immediately on the work. We had a new unit installed in a few hours. Excel is very professional and got the job done, I highly recommend this company.
L.B. was knowledgeable, efficient and friendly. Would definitely recommend Excel’s services and will be using them again for future plumbing needs.
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1 change recorded — last scanned Jul 1, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Excel Plumbing and heating. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Languages
Languages
Transparent diagnostics5.0
Quoted price holds5.0
Midnight and weekend help5.0
Same-day and weekend calls for burst pipes and lost heat5.0
Broad plumbing and HVAC range5.0
Rapid response5.0
Water heater and tankless installs4.4