Veteran-Owned · MA Master Plumber PL17071-M · 24/7 No-Heat Service

Heating Repair & Installation in Weymouth, MA

Weymouth is a gas town with old heating systems, and that combination defines the work. Natural gas is widely available across town, the housing stock is largely pre-war and mid-century, and a real share of it still runs on steam or gravity-era hot water systems that were converted to gas decades ago. Heating a Weymouth house well is mostly about respecting what is already there.

Steam systems deserve a technician who knows them

Plenty of Weymouth homes still run one-pipe or two-pipe steam, and steam is its own discipline. Most contractors either will not touch it or will quote you a conversion because that is easier than learning the system. A well-maintained steam system is quiet, comfortable and long-lived — the problems are almost always in the accessories, not the boiler.

What we actually find: failed air vents on radiators causing cold rooms, a bad main vent making the whole system slow to come up, a water line set wrong so the boiler surges and hammers, pitch lost on a return line, and near-boiler piping that was never installed to the manufacturer’s dimensions. Banging pipes are a symptom with a cause, not a personality trait of old houses. We fix the cause.

If replacement is genuinely warranted, a steam boiler must be sized to the connected radiation — the square footage of the radiators — not to a heat loss calculation like a hot water system. Getting that wrong is the single most common way a new steam boiler ends up worse than the one it replaced.

Hot water systems and gas replacement

For forced hot water homes, a high-efficiency gas boiler is usually the straightforward answer, and where there is ductwork a furnace replacement is simple work. We install Navien, Laars, Lochinvar and Viessmann hydronics and pipe them properly — near-boiler piping and venting done right matters more for longevity than the badge on the front.

One caution specific to old Weymouth houses: condensing boilers need low return water temperatures to actually reach their rated efficiency. On a system with big old cast iron radiators that is achievable; on a system with undersized baseboard it may not be, and you will have paid for efficiency you never see. We check before we sell it.

Multi-family heating

Weymouth’s two- and three-unit buildings bring their own issues — one boiler serving multiple units with no way to allocate cost, zones that were added without rebalancing the system, tenant thermostats fighting each other, and a no-heat call that affects several households at once instead of one. We prioritize those calls accordingly, and where an owner wants to separate heating between units we will lay out honestly what that costs and whether it pays back.

What we handle in Weymouth

• Heating repair and no-heat service — gas, oil, steam and heat pumps, 24/7.
• Boiler repair and service — steam and hot water, including vents, controls, circulators and near-boiler piping corrections.
• Boiler replacement — steam sized to connected radiation, hot water sized to heat loss.
• Furnace replacement for ducted homes, with the ductwork assessed rather than assumed.
• Annual maintenance — combustion testing and safety checks.
• Gas line services — permitted, pressure tested and inspected, including generator lines.

Where heat pumps fit

Weymouth is on an investor-owned utility, so the full Mass Save incentives apply. In a gas town the pure fuel-savings argument is weaker and we will say so. But the case is strong in two situations that are common here: you want air conditioning you do not currently have, in which case a heat pump collects rebates a straight AC condenser cannot; or you have a system with no ductwork where ductless is the only realistic path to cooling anyway. A hybrid — heat pumps for cooling and shoulder-season heating, existing boiler for deep winter — is often the right answer in a Weymouth house. Check the numbers with the rebate calculator.

Weymouth questions we hear

Should I convert my steam system to forced hot water? Usually no. It is an expensive project that involves tearing out radiation and repiping the house, and a properly serviced steam system is genuinely comfortable. We would rather fix the vents and the piping than sell you a conversion.

Why do my pipes bang? On steam, it is water where steam should be — a pitch problem, a failed vent, or a wrong water line. It is diagnosable and fixable, and it is not something you have to live with.

My boiler is 30 years old and runs fine — why replace it? Because it will not fail in October. It will fail at 2am in January, and in a two-family that is several households without heat while you make a rushed decision. Planning it in the fall costs the same money.

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Also in Weymouth: plumbing · cooling and heat pumps · all Weymouth services

Heating nearby: Braintree · Quincy · Hingham · Hull

3R Plumbing & Mechanical LLC · 77 Accord Park Drive, Suite D6, Norwell, MA · MA Master Plumber PL17071-M