HVAC contractors in Massachusetts

How much does furnace replacement cost in Massachusetts? Carrier's cost guide, citing HomeAdvisor, puts an installed gas furnace at $3,800 to $12,000, and oil at $6,750 to $10,000 or more. What nobody explains is the chimney. Here is what moves your price.

One: efficiency. Carrier lists gas furnaces from 80 to 98.5 percent efficiency. The high end costs more up front and wastes less fuel.

Two: venting. A high efficiency furnace needs its own vent pipes, not the chimney. If your water heater shared that chimney, it is now alone in a flue sized for two. Carrier's installation instructions say its vent may need to be resized. Ask if that is in your quote.

Three: size and ducts. Carrier says to size the furnace with a load calculation, not square footage. Ductwork, gas piping and electrical changes all add labor.

Four: permit and warranty. In Massachusetts, gas fitting work needs a permit and an inspection. Carrier, for example, gives ten years on parts only if the furnace is registered within 90 days. Miss that, and it is five years, with no labor.

When two quotes for the same house are far apart, they are rarely the same job. One reuses the chimney. The other includes the venting, the permit and a registered warranty. Price alone is the wrong comparison, especially in a Massachusetts climate.

Ask every contractor three questions. Does your price include the venting and the chimney work? Who pulls the gas permit? And will you register the warranty, and does it cover labor?

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How much does it cost to replace an AC compressor in Massachusetts? Your system may have a ten year parts warranty, and you can still get a real bill. Here is what sets the price.

One: is it really the compressor? A failed capacitor can stop the compressor while the fan runs. That part is cheap, so get the diagnosis in writing.

Two: registration. Carrier, for example, gives ten years on parts if the system was registered within 90 days of installation. Miss that, and it drops to five years.

Three: what the warranty skips. The same warranty excludes labor, refrigerant, and failures caused by faulty installation. A compressor swap means recovering the refrigerant, brazing in the new compressor, a new drier, a vacuum and a recharge. So a covered part still means a labor bill.

Four: refrigerant and age. R-22 has not been produced or imported in the US since 2020, so older systems rely on stored supply. ENERGY STAR says to consider replacing a system more than ten years old, and notes that before rebates, a heat pump costs about the same as central air. In Massachusetts, it heats your home too.

So when two quotes for the same failed compressor are far apart, they are rarely the same job. One may be a part swap with no labor warranty. The other may include a new drier, a vacuum test and a warranty on the repair. Price alone is the wrong comparison, especially in a Massachusetts climate.

Ask every contractor three questions. Is it the compressor or the capacitor? Is my system registered, and what does the warranty cover? And what warranty do you give on your labor?

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Does a heat pump work in a cold climate like Massachusetts? Yes, if it's the right model, sized right. A cold-climate model still delivers at least 1.75 units of heat per unit of electricity at five degrees. Nobody explains how to check that before you sign.

One: the label. Look for ENERGY STAR Cold Climate. To earn it, a heat pump keeps at least 70 percent of its heating capacity at five degrees.

Two: the spec sheet. Ask for the heating capacity at five degrees, not just the rated size. That number has to cover your house on the coldest nights.

Three: the sizing. Ask for a Manual J heat load calculation. In 2026, Mass Save pays a sizing bonus when the system covers 90 to 120 percent of that load at the outdoor design temperature. A guess from square footage can leave you cold in January.

Four: the backup. If you keep your boiler or furnace, ask what turns it on, and at what outdoor temperature. Mass Save requires a control for that when oil, propane or gas stays.

Five: your house. Drafts and thin insulation raise the heat load, so sealing first can mean a smaller system.

So two quotes for the same house can be far apart. One guessed the size with a standard model. The other ran the heat load, picked a cold-climate model and set up the backup. The equipment and the installation differ, so price alone is the wrong comparison in a Massachusetts winter.

Ask every contractor three questions. What is the heating capacity at five degrees? Can I see the heat load calculation? And when does the backup heat turn on?

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How much does a heat pump cost to install? In Massachusetts, it runs higher than in most states, and the price depends on five things.

First, the numbers. Across the country, whole-home quotes run from about $8,000 to more than $30,000, depending on the state. In Massachusetts, expect roughly $18,000 to $30,000 before rebates. Cold-climate equipment and local labor both push it up.

So what moves your price? One: size. Most homes need two to five tons, and a bigger system costs more.

Two: ducted or ductless. Every indoor unit adds equipment and labor, and existing ducts may need sealing or changes.

Three: whole home or partial. Replacing your whole heating system costs more than adding a heat pump next to the boiler or furnace you keep.

Four: your house. An older electrical panel may need an upgrade. And a drafty house needs a bigger system, so insulation first can mean a smaller heat pump.

Five: the equipment. For our winters, ask for a cold-climate rated model. It costs more, and it's what keeps you warm in January.

Then rebates. In 2026, Mass Save offers up to $8,500 for qualifying homes, with approved installers and listed equipment. Some towns have their own electric company and different programs, so check which one serves your address before you sign. And the federal tax credit ended with 2025.

That's why two quotes for the same house can be thousands of dollars apart. Ask each contractor for the size in tons, the exact model, what electrical and duct work is included, and which rebates they will file.

Compare local heating and cooling contractors by town at MassHomeComfort.com. It's always free.