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Furnace Replacement

Replace your old furnace with a free estimate and 3 to 5 right-sized options to choose from.
Furnace Replacement

Replace your old furnace with a free estimate and 3 to 5 right-sized options to choose from.
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Furnace Replacement in Greater Boston & the South Shore


An old or unreliable furnace can leave you cold and drive up your energy bills. Trust 1 replaces gas and electric furnaces for homes across Greater Boston and the South Shore. We don’t just swap in the same size unit. Every replacement starts with a Manual J measurement of your home so your new furnace is sized correctly.

Most furnace replacements are done in one day, and you’ll get 3 to 5 options with the pros and cons of each before you decide.

In Quincy? See our Quincy plumbing, heating & cooling page, or browse all towns we serve.

Trust 1 technician giving a thumbs-up beside a newly installed American Standard furnace

Furnace Replacement Costs in Greater Boston

Most furnace replacements we complete fall in this range:

Average: $10,000

Low: $8,000
High: $12,000

What Affects the Price?

  • System size: larger homes and homes with less insulation need a higher-capacity system.
  • Efficiency: higher-efficiency equipment lowers monthly bills but usually costs more up front.
  • Ductwork and venting: changes to ductwork, venting or gas lines can add to the job.

Your estimate will list exactly what’s included with the option you choose.

Signs It’s Time to Replace Your Furnace

  • Frequent breakdowns: repairs keep adding up.
  • Rising energy bills: your furnace is working harder to heat the same home.
  • Uneven heating: some rooms stay cold no matter where the thermostat is set.
  • Short cycling: the furnace turns on and off over and over, often a sign it’s the wrong size.
  • A cracked heat exchanger: this can let carbon monoxide into your home and usually means replacement.

Repair or Replace? We’ll Show You

We use a repair-or-replace chart that weighs your furnace’s age, the cost of the repair, your monthly utility costs, how often it has needed repairs and any comfort problems. A cracked heat exchanger or carbon monoxide concern changes the conversation, because safety comes first. You’ll get honest information and a clear recommendation, and the decision is always yours.

The Right Size, Not Just the Same Size

We see a lot of furnaces that are too big for the home. An oversized furnace short cycles, which wears it out early and drives up your energy bills. A furnace that’s too small runs almost constantly and struggles to keep up. That’s why every replacement includes a Manual J home measurement, so your new furnace is matched to your home instead of your old equipment.

What’s Included in a Trust 1 Furnace Replacement

Every furnace option is a little different, but every replacement starts with this baseline:

  • Manual J home measurement to size your system correctly
  • Removal and eco-friendly disposal of your old furnace
  • A new standard thermostat
  • Three standard 1″ air filters (we’ll mail them if they’re not provided on site)
  • All necessary duct transitions and ductwork connections
  • All necessary gas fittings, electrical connections and venting
  • A new condensate pump with neutralizer (if applicable)
  • Installation to the manufacturer’s specifications

Your estimate will list exactly what’s included with the option you choose.

How Long Does a Furnace Replacement Take?

Most furnace replacements are done in one day. A job can take longer if the venting needs to change, the furnace is in a tight attic or crawlspace, or the ductwork needs to be modified. We’ll let you know ahead of time if we expect your job to run longer.

Furnace Warranty Coverage

Coverage depends on the package and equipment you choose. Every replacement includes:

  • A 1-year labor warranty from Trust 1
  • A 10-year parts warranty (standard from most furnace manufacturers)
  • A manufacturer’s heat exchanger warranty (length varies by brand)

Want more peace of mind? We offer packages with up to 10 years of parts and labor coverage.

3 to 5 Options, Your Choice

We install furnaces from Bryant, Goodman and Bosch, and we have access to other brands when a different system is a better fit for your home. For every replacement, we give you 3 to 5 options with the pros and cons of each. The decision is always yours.

Thinking About a Heat Pump Instead?

Replacing your furnace is a good time to consider a heat pump, which can heat and cool your home. Learn about available Mass Save rebates and our financing options.

Related Heating Services

Schedule a Furnace Replacement Estimate

Ready to replace your furnace? Contact Trust 1 Heating, Cooling & Plumbing or book online, and we’ll measure your home and walk you through your options.

service tech talking with customers

Products We Provide


Product: 95% AFUE Furnace
  • Single-Stage Gas Valve for Efficiency
  • Quiet Draft Inducer Motor
  • Parts Warranty (10 Years, Registration Required)
  • Efficient ECM Blower Motor with Multiple Speeds
  • Low NOx Emissions Compliance
  • Enhanced Insulation

View More About Product >>

Frequently Asked Questions (FAQs)

How do I know if it’s time to replace my furnace?

Common signs include frequent breakdowns, rising energy bills, uneven heating, short cycling and a cracked heat exchanger. We use a repair-or-replace chart that weighs your furnace’s age, repair cost, utility costs and repair history, then give you a clear recommendation.

How long does a furnace replacement take?

Most furnace replacements are done in one day. A job can take longer if the venting needs to change, the furnace is in a tight attic or crawlspace, or the ductwork needs to be modified.

What types of furnaces do you install?

We install gas and electric furnaces from Bryant, Goodman and Bosch, and we have access to other brands. You’ll get 3 to 5 options with the pros and cons of each.

Can I finance my furnace replacement?

Yes, we offer flexible financing options to help make your furnace replacement more affordable. Our team can provide details on financing plans and assist you in finding the best option that fits your budget.

Are your technicians certified and experienced in furnace replacement?

Absolutely! Our technicians are highly trained, certified, and experienced in furnace replacement. They have the expertise to handle various types and models of furnaces, ensuring a professional installation and optimal performance.

Do you provide warranties on furnace replacements?

Yes. Every replacement includes a 1-year labor warranty from Trust 1, a 10-year parts warranty (standard from most manufacturers) and a manufacturer’s heat exchanger warranty that varies by brand. We also offer packages with up to 10 years of parts and labor coverage.

Will my new furnace be the same size as my old one?

Not necessarily. Many older furnaces are oversized. We do a Manual J measurement of your home so your new furnace is sized to your home, not your old equipment.

What happens to my old furnace?

We remove it and dispose of it in an eco-friendly way as part of your replacement.

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Trust 1 Core Values

  • Trust in our

    Honesty

    Our information we provide to you, our client, is 100% honest with our highly trained knowledge. Family & personal safety is why we provide you with the information about your systems, to keep you comfortable.

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    Trust In Our

    Passion

    We thrive off our unstoppable “passion” for our customer service and products we offer. Our systems are designed personally for each client. Comfort with a workman’s separation visibly from a mile away.

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    Trust In Our

    Team Work

    From the first call to our office staff to the technician leaving your home, we set systems. These systems are the glue that holds our team close, personal, and on target every time.

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    Purpose

    Our purpose is to change the way home service providers are viewed in the new world to put us in a class of people who keep the health of the Nation’s water flowing & heat pumping.

  

Read Our Reviews

Your Satisfaction,
Our Reputation


Read what homeowners across Greater Boston and the South Shore say about Trust 1 Heating, Cooling, & Plumbing.

  • Air Conditioning Services

    I was really impress with Nick Julien and his colleague Noah for coming over to my place immediately when my a/c was failing mid-summer. I chose the Bosch and it was the best HVAC decision I could’ve… Read More

    Ryan B.
  • Heating Services

    Woke up to an issue with our heat. Called the 24 hour hot line and Josh and Jake were here quickly. They diagnosed the issue, made temporary repairs, and arranged for a more permanent resolution for early next week!

    Philip G.
  • Plumbing Services

    We spent a fortune on a different company to install a new heat pump with duct work & were paying over $1400 in electric until Trust 1 showed up next day to fix our nightmare. Professional, knowledgable… Read More

    Cyprian K.
  • Air Conditioning Services

    Super thanks to the staff at Trust 1! They were spectacular; everyone from the front line staff who answered our calls to our technicians Tom and Jim. Both gentlemen were extremely professional in… Read More

    Johnny C.
  • Heating Services

    Great experience, great people and top quality work. Highly recommended. Extra credit to Nick for staying late to make sure our new heating system was running on all cylinders. Thanks for everything!

    Michael P.
  • Plumbing Services

    We had a water leak from our hot water tank. When I called, the lady who took my call was very professional and precise, which I really appreciated. They sent D.J., and he was awesome—very efficient and…Read More

    Nao S.
  • Air Conditioning Services

    I was really impress with Nick Julien and his colleague Noah for coming over to my place immediately when my a/c was failing mid-summer. I chose the Bosch and it was the best HVAC decision I could’ve… Read More

    Ryan B.
  • Heating Services

    Woke up to an issue with our heat. Called the 24 hour hot line and Josh and Jake were here quickly. They diagnosed the issue, made temporary repairs, and arranged for a more permanent resolution for early next week!

    Philip G.
  • Plumbing Services

    We spent a fortune on a different company to install a new heat pump with duct work & were paying over $1400 in electric until Trust 1 showed up next day to fix our nightmare. Professional, knowledgable… Read More

    Cyprian K.
  • Air Conditioning Services

    Super thanks to the staff at Trust 1! They were spectacular; everyone from the front line staff who answered our calls to our technicians Tom and Jim. Both gentlemen were extremely professional in… Read More

    Johnny C.
  • Heating Services

    Great experience, great people and top quality work. Highly recommended. Extra credit to Nick for staying late to make sure our new heating system was running on all cylinders. Thanks for everything!

    Michael P.
  • Plumbing Services

    We had a water leak from our hot water tank. When I called, the lady who took my call was very professional and precise, which I really appreciated. They sent D.J., and he was awesome—very efficient and…Read More

    Nao S.