# William J Malcolm & Son Inc **Trade:** Plumbing · **Address:** 75 Bay State Rd, Cambridge, MA 02138, USA · **Phone:** (617) 876-7523 · **Languages:** English **Rating: 3.1/5** (low confidence) — from 4 reviews across 4 sources. ## The honest read William J Malcolm & Son Inc is a Cambridge plumbing outfit with an unusually long history behind it — its Better Business Bureau profile lists the company at 143 years in business, though it isn't BBB accredited and carries no BBB rating. The written reviews on file are specific. In a 2022 review, a longtime customer described over 10 years of work with the company, from a leaky sink to a new boiler installation to a 3-basin sink for their store. Another 2022 review described a same-day visit to fix a leaking garbage disposal and a clogged drain, handled despite an end-of-day scheduling squeeze. A 2024 reviewer praised technician Kevin for taking the lowest-cost approach to a repair and staying to handle a last-minute faucet request. Not every account is about the plumbing itself: in a separate 2022 review, a customer described aggressive, rude behavior from a company truck while biking — a complaint about conduct on the road rather than about any job performed. For a small, long-running local plumbing shop, this is a company with real customer loyalty behind it and one pointed complaint about a company truck's road manners worth asking about directly if it matters to you. **Strengths:** - Long history — the company has been in business 143 years - Long-time customer — one review describes over 10 years of work - Same-day fixes — a leaking disposal and clogged drain fixed quickly **Concerns:** - Driver conduct — a 2022 review described rude, aggressive behavior from a company truck ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - Better Business Bureau's profile lists the company as 143 years in business, though it is not BBB accredited and carries no BBB rating _(confidence: high)_ - [Better Business Bureau](https://www.bbb.org/us/ma/cambridge/profile/plumber/william-j-malcolm-son-inc-0021-10523) — “BBB profile confirms the business but shows it is not BBB Accredited and has no BBB rating, complaint count, or reviews listed on the page; …” - One reviewer describes over 10 years of work with the company, from a leaky sink to a new boiler installation _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNXOEsyZFhREAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICW8K2dXQ%7C%7C?hl=en) — “5★ I've used them for over 10 years for everything from a leaky sink to installing a new boiler at my home to putting in a 3 basin sink in m…” - In a 2022 review, a customer described a same-day fix for a leaking garbage disposal and clogged drain _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUMyMDk3dkhnEAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgIC2097vHg%7C%7C?hl=en) — “5★ We had a faulty garbage disposal and clogged drain that was leaking. They visited on the same day following a short, polite, and profess…” - In a 2022 review, a customer described aggressive, rude behavior from a company truck driver while biking, unrelated to any plumbing work performed _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNlanB2cFh3EAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICejpvpXw%7C%7C?hl=en) — “1★ I can't comment on their plumbing ability, but I can tell you they aren't the kind of guys you want in your house. Their truck honked at …” - A 2024 reviewer said they were surprised by a past complaint about the front office, noting it didn't match their own experience _(confidence: low)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNkNE5YaEtREAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICd4NXhKQ%7C%7C?hl=en) — “5★ I am very pleased with the service I got from Kevin today. He showed up when promised, took the lowest-cost approach to fix a problem, a…” - Specializes in Plumbing _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNkNE5YaEtREAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICd4NXhKQ%7C%7C?hl=en) — “5★ I am very pleased with the service I got from Kevin today. He showed up when promised, took the lowest-cost approach to fix a problem, a…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUMyMDk3dkhnEAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgIC2097vHg%7C%7C?hl=en) — “5★ We had a faulty garbage disposal and clogged drain that was leaking. They visited on the same day following a short, polite, and profess…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNXOEsyZFhREAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICW8K2dXQ%7C%7C?hl=en) — “5★ I've used them for over 10 years for everything from a leaky sink to installing a new boiler at my home to putting in a 3 basin sink in m…” - Also offers HVAC / Heating & Cooling _(confidence: low)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNXOEsyZFhREAE!2m1!1s0x0:0x6842bdcda870b560!3m1!1s2@1:CIHM0ogKEICAgICW8K2dXQ%7C%7C?hl=en) — “5★ I've used them for over 10 years for everything from a leaky sink to installing a new boiler at my home to putting in a 3 basin sink in m…” ## License Status: **not_found** (#1123-PL-C, plumber) — verified against the official MA state registry on 2026-07-01, never self-reported. Re-check at the official registry: https://occupationallicensingandpermitting.mass.gov/madol/s/license-search-page ## Sources - [Google](https://www.google.com/maps/search/?api=1&query=William%20J%20Malcolm%20%26%20Son%20Inc&query_place_id=ChIJ73ycfgx344kRYLVwqM29Qmg): 4.1★ from 16 ratings - [Google Reviews](https://www.google.com/maps/search/?api=1&query=William%20J%20Malcolm%20%26%20Son%20Inc&query_place_id=ChIJ73ycfgx344kRYLVwqM29Qmg): Listed on this source - [Better Business Bureau](https://www.bbb.org/us/ma/cambridge/profile/plumber/william-j-malcolm-son-inc-0021-10523): Listed on this source - [Exa](https://www.buildzoom.com/contractor/william-j-malcolm-son-inc): 9 web mentions across the open web (each linked to its source) ## Recent reviews - **5/5 · Google Reviews · Robert Kleinberg · 2024-02-09**: I am very pleased with the service I got from Kevin today. He showed up when promised, took the lowest-cost approach to fix a problem, and then stayed on to take care of a last-minute add-on faucet renew. Looking at the previous reviews I am somewhat perplexed by the complaint about the front offi… - **1/5 · Google Reviews · Patrick Lavoie · 2022-09-14**: I can't comment on their plumbing ability, but I can tell you they aren't the kind of guys you want in your house. Their truck honked at me while I was biking, then passed inches away while cursing me out. Yes, driving brings out the worst in many people but these guys were exceptional....and not in… - **5/5 · Google Reviews · Ne No · 2022-06-23**: We had a faulty garbage disposal and clogged drain that was leaking. They visited on the same day following a short, polite, and professional phone conversation. They visited on time and despite an end of day scheduling managed to fix the drain and replace the disposer in no time with no hassle. … - **5/5 · Google Reviews · Jackson Hall · 2022-02-16**: I've used them for over 10 years for everything from a leaky sink to installing a new boiler at my home to putting in a 3 basin sink in my store. They are good people --- Data freshness: last scanned 2026-07-01T18:37:49.977Z. Cite as: William J Malcolm & Son Inc — Tavlee (https://tavlee.com/contractor/william-j-malcolm-and-son-inc-cambridge) Source: https://tavlee.com/contractor/william-j-malcolm-and-son-inc-cambridge