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    Johnson Bros. Plumbing & Drain Cleaning
    Hanover boiler repair

    Boiler Repair in Hanover, MA

    Hanover's 1960s and 1970s housing stock has boilers that are well past their original service life. We dispatch from Quincy and prioritize no-heat emergencies. Licensed MA plumber — we take emergency no-heat calls 24/7.

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    MA Master Plumber Lic. PL #17034-MCorporate License #458124/7 emergency answering4.8 stars from 367 Google reviews

    Why Hanover boilers need expert service

    Many Hanover homes from the 1960s and 1970s have original hot-water boilers that were never replaced — now operating well past their design life on deferred maintenance.

    Hanover's suburban growth in the late 1970s and 1980s added homes with early-generation high-efficiency boilers that are now developing heat exchanger and control board failures.

    Boilers in Hanover often go unchecked between real estate transactions, with buyers inheriting systems in unknown condition.

    Hanover's colder interior location compared to coastal towns means heating systems run harder and longer each winter.

    How we handle Hanover boiler problems

    Boiler diagnostic and repair

    We identify the failing component — circulator, pressure relief, aquastat, expansion tank, gas valve — and repair it directly.

    Pressure relief and safety check

    PRVs and low-water cutoffs are safety-critical and fail silently. We test and replace these on every service visit.

    Boiler replacement

    When repair no longer makes economic sense, we replace with properly sized equipment, pull the MA permit, and commission correctly.

    The $99 service fee applies toward any repair or replacement once you move forward.

    No heat in Hanover? We answer 24/7.

    Dispatching from Quincy to Hanover

    We dispatch from 75 East Elm Ave in Quincy — about 25 to 30 minutes from Hanover. No-heat emergencies get priority. Call (617) 479-9911.

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    Hanover boiler repair FAQs

    How long do boilers last in Hanover homes?

    Hot-water boilers in Hanover's 1960s and 1970s housing stock are often now 40 to 50 years old — well past typical service life. We assess condition and give you an honest repair-vs-replace recommendation.

    My Hanover boiler keeps losing pressure. What's wrong?

    Pressure loss usually means a leak somewhere in the system, a failing expansion tank, or a pressure relief valve that's stuck open. We diagnose the specific cause before recommending a fix.

    Is emergency boiler service available in Hanover?

    Yes. We answer 24/7 and dispatch from Quincy — about 25 to 30 minutes from Hanover. No-heat calls get priority in winter. Call (617) 479-9911.

    Should I repair or replace my Hanover boiler?

    If repair cost is under 40 percent of replacement and the unit is under 20 years old, repair usually makes sense. We give you both numbers honestly and let you decide.

    Do you pull permits for boiler replacement in Hanover?

    Yes. Massachusetts requires a permit for boiler replacement. We manage the permit and inspection as part of the job.

    What are the warning signs my boiler is about to fail?

    Watch for: frequent pilot outages or ignition lockouts, pressure that keeps climbing or dropping without explanation, banging or kettling sounds during a heating cycle, visible rust or moisture around the boiler body, and heating bills that have jumped without a weather explanation. Any one of these warrants a diagnostic call before you lose heat entirely.

    How long does a boiler repair take?

    Most single-component repairs — circulator pump, expansion tank, pressure relief valve, aquastat — are completed in one visit of 1–3 hours. If we need to order a part, we'll tell you upfront and schedule the return visit. Full boiler replacements typically take a full day.

    Do you warranty your boiler repairs?

    Yes. Labor is warrantied for one year. Parts carry the manufacturer warranty, which varies by component. We stand behind our work — if the same issue comes back within the warranty period, we come back.

    Johnson Bros. Plumbing & Drain Cleaning

    Family-owned South Shore plumbers since 2008.

    Contact

    (617) 479-9911

    Emergency · Scheduling

    MA PL #17034-PL-M
    Corp #4581

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