How Much Does a New Furnace Cost?

How Much Does a New Furnace Cost?

One of the top questions I get asked is, “What does a new furnace cost?”  Of course, the answer is, “It depends.”  There are many reasons that you may need a new furnace and the cost will vary based on the answer to that question.

1. You are building a new house and need a new furnace and duct system. In the Gallatin Valley, you can anticipate spending anywhere from $3.50-$4.00 per square foot on a basic furnace system and ductwork. If you plan to add options like zoning, upgraded thermostats, an HRV, air conditioning, etc. your total cost will go up from there.

2. Your older furnace went out and you need a new one. You can expect to pay about $5,000-$6,500 for a new 96% efficient furnace. Most companies will provide a free estimate. It is important to get estimates from at least two companies and to research those companies before you choose to purchase them. The HVAC industry has little oversight in Montana (no special licenses are required to become an HVAC contractor like plumbers and electricians) so make sure the company you choose is local (so they will warranty their work) and that they have experience in the trade and positive reviews.

3. You are doing a remodel project and want to add a forced-air system. This is often one of the most varied costs when it comes to a new furnace. Some companies will want to charge “time and materials” for this type of work rather than an estimate or a bid since remodeling projects often run into unforeseen costs or more hours than a typical project. You can expect to pay a bit more per square foot since it’s more labor-intensive to work around an existing structure.  Typical prices range from $2.70-$3.20 per square foot for the basic system.

Premier Air Heating and Cooling offer FREE estimates on all services including humidifiers, fireplaces, furnace replacements and upgrades, air conditioning, HRV, and new construction. Call (406) 333-0177 or visit our website at for more information about our products and services.


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