Furnace Replacement in Massachusetts
Find Out If You Really Need One
Plumbing
Plumbing
Plumbing
Residential Furnace Replacement Massachusetts
A New Furnace Should Be Your Call
Furnace replacement in Massachusetts usually comes up at a bad moment. The heat quits in January, a technician says the system is done, or repair bills keep stacking up, and suddenly you’re making a big decision fast.
We handle residential furnace replacement for gas, oil, and electric systems across Bristol, Norfolk, and Plymouth Counties and the Greater Boston area. We start by working out whether you need a new furnace at all. If you do, we show you the options and the reasons. If a repair makes more sense, we’ll tell you that too.
What You Can Count On
Diagnosis Before Any Replacement
Our technicians explain what they find and lay out your options, so you decide whether repair or replacement makes sense.
Mass Save Partner
We help you sort out which Mass Save rebates and financing actually apply to your project.
Family Owned Local Team
We're a family-owned company in North Attleborough with a real address and a phone line open 24 hours.
Warranty Backed Installs
Select installs carry a 10-year labor warranty, and we handle warranty registration so nothing slips through the cracks.
Replace Furnace or Repair It
Age Alone Doesn't Make the Call
Most furnaces we see in Massachusetts homes land in one of two camps. Some are past 15 years old, need repairs more and more often, and keep pushing your heating bills up. Replacing those often makes financial sense. Others have one failed part and plenty of life left.
A good furnace replacement contractor tells you which camp you’re in and shows you why. We explain what we find and lay out repair and replacement side by side. Doing it before your furnace quits lets you compare options and pick a day, instead of deciding in a cold house.
New Furnace Benefits Massachusetts
Replace Only When It Makes Sense
You'll hear why a part failed and what your options are before anyone asks you to approve a replacement.
Your new furnace is sized to your home's actual heating load, not guessed from the size of the old unit.
Your ducts get checked, so leaks or poor layout don't quietly waste the heat your new furnace makes.
Floors and furniture are protected, the old system is removed, and the work area is left clean.
A typical swap takes about 4 to 8 hours, so you're not living without heat for days.
After install you can join the Dempsey Comfort Club for priority scheduling and maintenance reminders.
New Furnace Installation Included
Sizing, Ducts, Permits, and Cleanup Included
Here’s what a replacement with us includes. We measure the space, check your ductwork, size the system from your home’s heating load, pull permits when they’re required, and coordinate inspections. On install day we connect gas, electrical, and venting to manufacturer specifications and local code, then test and commission everything.
For gas furnace replacement in Massachusetts, that’s often a straightforward swap. For high efficiency furnace replacement, condensing models can reach 95% AFUE or higher, though how quickly that pays off depends on your fuel, your usage, and your ducts. If you heat with oil, we can also talk through what else is possible, including a heat pump, rather than assume the answer is the same box.
Furnace Replacement Process Massachusetts
See Every Step Before It Happens
Diagnose and Measure the Home
We inspect the furnace, measure the space, check ducts, and walk you through repair and replacement options.
Permits, Sizing, and Scheduling
We size the system, handle permits, and schedule a time that works for you, often same day in emergencies.
Install, Test, and Walkthrough
We protect your floors, swap the furnace, test it, clean up, and register your warranty.
We Leave Our Customers Smiling
Ready for 5-Star Level Service?
Frequently Asked Questions
How much does furnace replacement cost in Massachusetts for a gas, oil, or electric furnace?
Published 2026 Massachusetts data from Costadia puts furnace replacement at roughly $4,300 to $8,850 statewide. By fuel, gas models run about $4,800 to $8,750 and electric furnaces about $2,700 to $5,800. Oil furnace replacement runs $5,000 to $8,000, with high-efficiency gas models reaching up to $9,000. Those are statewide ranges, not our quotes. Your number moves with home size, fuel, efficiency level, permits, ductwork, and any gas line work. We look at your house first and then give you options, so the price you see reflects your home and not an average.
How do I know when to replace my furnace instead of repairing it in Massachusetts?
Age is the first clue. If your furnace is over 15 years old, needs repairs more and more often, or your heating bills keep climbing, replacement often makes financial sense. Massachusetts winters keep a furnace working hard for months, so older units tend to give out right when you need them most. If the furnace is younger and one part failed, a repair is usually the smarter move. We explain what we find, show you what failed, and put repair and replacement side by side so the decision stays yours.
Can you replace a furnace in winter, and how long will I be without heat?
Yes. We install year-round, including in the dead of winter. A standard same-location swap takes about 4 to 8 hours. It can stretch to a full day or a second visit if we’re relocating the unit, upgrading a gas line, or modifying ductwork. When your heat is out, we can often install the same day, and we carry temporary heating equipment when it’s needed. If you’re searching for furnace replacement near you in Massachusetts in the middle of a cold snap, call our line, which is open 24 hours, and tell us what’s happening.
Are there Mass Save rebates for a new furnace, or only for heat pumps?
Mostly heat pumps. Mass Save’s biggest rebates go to qualifying heat pump systems, with larger incentives for income-qualified households. For a gas furnace, savings are generally smaller and tend to come as utility efficiency rebates on high-efficiency models. Amounts change, so we won’t quote a figure here. Which utility serves your Massachusetts address matters too, because it shapes how you apply. As a Mass Save partner, we can walk you through what you may qualify for, including 0% HEAT Loan financing on qualifying heat pump work, before you decide.
Should I switch from oil to gas or a heat pump with a new furnace?
It depends on your house, and it’s worth asking before you buy a new furnace by default. Oil heat is still common across the South Shore and Plymouth and Bristol Counties, and gas availability can change from one street to the next. Homes without gas service face higher upfront costs to bring a line in. We install gas furnaces, oil systems, and heat pumps, so we’re not steering you toward the one thing we stock. We run a load calculation, talk through fuel costs and rebates, and you pick what fits.
Do I need new ductwork when I replace my furnace, and who handles permits?
Not always. We inspect your ducts as part of the visit and explain what we find, whether that’s leaks, poor layout, or nothing worth touching. Duct repair typically runs $500 to $4,000 or more, and a full replacement can add $2,500 to $8,000, according to hvacprojectcost.com, so it’s worth knowing before the new furnace goes in. As for permits, we pull them when they’re required and coordinate the inspection with your town, so you aren’t left running to town hall. We handle warranty registration too.
- Dedham
- Franklin
- Middleboro
- Norwood
- Norfolk
- Wellesley
Serving Southeastern Massachusetts & Beyond
Dempsey Energy is proud to offer top-notch heating, cooling, plumbing, and energy solutions to homes across Southeastern Massachusetts, including the Greater Boston Area. Whether you need a quick repair, routine maintenance, or a full system installation or replacement, our experienced team is here to deliver dependable, high-quality service tailored to your needs.
From emergency plumbing fixes to energy-efficient HVAC upgrades, we bring over 30 years of expertise and a commitment to your comfort and satisfaction. Explore our service area on the map to see if we’re in your neighborhood, and let us show you why we’re the trusted choice for homeowners across the region.
Need help now? Give us a call today!