Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Black Onyx Group Plumbing & HVAC. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$290 – $710
Typical plumbing job around $500
Black Onyx Group Plumbing & HVAC, based in Middleton, does a lot of its work for property managers — the kind of company a multifamily building calls for both routine service and after-hours emergencies across Boston and the wider state. Google shows 4.9★ from 23 ratings. The written record covers 22 reviews from 2024 through 2026 across four sources, and a good share of them come from people managing apartment buildings and commercial sites rather than single homeowners — repeat clients using them as a standing vendor rather than a one-time call. Response speed shows up again and again in specifics: a failed water heater got a tech on-site within an hour, with the new tank installed and the old one hauled away inside about two hours total; a furnace that quit on the coldest night of the year was working again within roughly an hour of the visit, in a review from early 2025. Plumbing work has also covered bigger builds — in a 2024 review, a customer described a full plumbing build-out for a pool house, including a kitchen, bathroom and gas line. Worth knowing: a 2026 review complained that a company van tailgated aggressively on the highway — a complaint about driving, not about the plumbing or HVAC work itself. The company reports its managing partner, Igor, is a master plumber with over 25 years of experience, and its Massachusetts plumbing license is active. A solid option both for a homeowner's plumbing or HVAC emergency and for a property manager looking for an ongoing vendor; worth confirming after-hours coverage given how much of the client base is commercial and multifamily.
“Igor Black Onyx Group has filed 24 building permits in Boston since 2023, closing 100% of 14 rated permits.”
Their van tailgated me aggressively on the highway.
Had a great experience with Black Onyx. Junior and his team were professional, knowledgeable, and very easy to work with. They arrived on time, clearly explained the issue and the work needed, and handled everything efficiently. What stood out most was their attention to detail and how clean they kept the space throughout the job. Overall, a smooth and stress-free experience. I’d definitely recommend Black Onyx and wouldn’t hesitate to use them again. ( Dalibor )
I’ve had the opportunity to work with Black Onyx Group across multiple projects, and their performance has been consistently strong. Their team brings years of experience and demonstrates a high level of versatility across all aspects of plumbing and HVAC systems, from routine work to more complex project demands. They operate with a hands-on, solution-oriented approach, ensuring that scopes are clearly understood and executed with precision. What stands out is their timely response and efficiency in providing accurate, well structured quotes, allowing projects to move forward without unnecessary delays. Black Onyx Group combines technical expertise, reliability, and professionalism, making them a dependable partner for projects requiring quality execution and responsive service.
My water heater let go in the early morning and they were at my house within an hour, had the new tank installed , cleaned up and the old one loaded on the truck and on their way to the next stop in another hour, fast easy and professional techs
Black Onyx was a life saver! I had an emergency at my business and could not operate fully. Not only did they get me up and running same day the price was very reasonable. Thank you to the whole team!
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Established 4.4 rating
Over a decade of repeat customers4.3