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+1978-505-6274
Ciardi Plumbing & Heating specializes in forced hot water boiler repair, installation, and maintenance for homeowners across the Merrimack Valley and North Shore. Licensed, 5.0-star rated, and ready when you need us.

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If you’re dealing with a boiler that’s losing pressure, a zone that’s stopped heating, or a system that’s simply reached the end of its life — you’ve come to the right place. Ciardi Plumbing & Heating specializes in forced hot water boiler repair and installation for homeowners and businesses across the Merrimack Valley and North Shore.
We’re not a large company dispatching whoever’s available. When you call Ciardi, you get Michael Ciardi and his experienced crew — the same team that’s earned a 5.0-star rating from homeowners across Massachusetts. We diagnose accurately, explain clearly, and fix it right the first time.
Ciardi Plumbing & Heating is a licensed and insured heating contractor based in Chelmsford, MA. Owner Michael Ciardi has 20+ years of hands-on experience working on forced hot water systems throughout Massachusetts.
Forced hot water boilers are our primary specialty — not a side service. We know these systems inside and out, from older cast iron installs to modern high-efficiency hydronic setups. We work clean, price fairly, and stand behind every job we complete.
Some Of Our Services:
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Choosing the right plumber is one of the most important calls you’ll make — especially when your heat goes out in February. Here’s what sets Ciardi apart:
What sets us apart is simple: we treat your home like our own. Clean work, honest pricing, and no unnecessary upsells
We’re based in Chelmsford and serve homeowners and businesses throughout the Merrimack Valley and North Shore, including:
We understand that choosing a plumber is a significant decision. Here’s what sets Ciardi Plumbing apart and answers to the questions you should be asking anyone you’re considering.
Answer: Pressure loss usually comes down to one of three things — a failing expansion tank, a leaking pressure relief valve, or a small leak in the system. It’s diagnosable and in most cases fixable without full replacement. Don’t ignore it.
Answer: If your system is under 15 years old and hasn’t needed frequent repairs, a targeted fix usually makes sense. Over 20 years old with recurring issues — replacement is likely the smarter investment. We’ll give you an honest assessment either way.
Yes. Older cast iron systems are extremely common across the Merrimack Valley and North Shore and we have extensive experience keeping them running safely and efficiently.
Once a year, ideally September or October before heating season. An annual tune-up extends system life, maintains efficiency, and catches small problems before they become expensive ones.
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