Furnace Installation & Replacement

Your furnace is the heart of your home's comfort through a long New England winter, and replacing an aging one is one of the smartest upgrades a Southeastern Massachusetts homeowner can make. A modern, properly sized furnace heats more evenly, runs far more quietly, and burns dramatically less fuel than the unit it replaces — which means lower bills every cold month and a house that holds its warmth instead of fighting for it.

Quality Home Heating & Air has installed and replaced gas and oil furnaces across the South Shore and South Coast since 1988. Every replacement starts with a proper Manual J load calculation — we size the furnace to your home, not to whatever was bolted in there years ago — and ends with a fully commissioned install we've measured and verified, not just a swap-and-go.

Most homeowners call us because an old furnace finally quit, heat bills keep climbing, or a cracked heat exchanger has made an aging unit unsafe to keep running. Whatever brought you here, we'll walk you through your options honestly — including high-efficiency models that qualify for Mass Save rebates and 0% financing — so you can make the right call for your home, your fuel type, and your budget.

Furnaces typically last 15–20 years in our climate — sometimes longer with good maintenance, often less when service has been deferred. As burners, igniters, blower motors, and heat exchangers age, efficiency falls and breakdowns cluster: a unit that needed one repair a couple of winters ago tends to start needing several in a row, usually on the coldest nights.

Sizing is the other big factor, and it's the one most often gotten wrong. An oversized furnace blasts heat, satisfies the thermostat fast, and shuts off — then cycles on again minutes later, leaving rooms hot-and-cold and wearing out components through constant stop-start. An undersized furnace runs nearly nonstop and still can't keep up on a bitter day. That's why we re-calculate the heating load on every replacement instead of simply matching the old BTU rating by default.

Finally, efficiency and safety matter together. Older furnaces often run at 60–70% AFUE, meaning a third or more of your fuel goes up the flue. And a cracked heat exchanger — common in older units — can leak combustion gases, which is a safety reason to replace rather than patch. Once a furnace is well into its second decade and facing a major repair, a modern 90%+ AFUE replacement almost always makes better long-term sense.