Furnace Cost in Springfield, IL

Furnace Replacement Cost in Springfield, IL

Springfield, IL has an average furnace replacement cost of $7,700, which is the mid-point for the overall cost range most homeowners see of $5,600 to $9,800. This is cheaper than the average price for Illinois as a whole, as well as cheaper than the Chicago metro area.

Let’s take a look at what impacts furnace cost in your city as well as where you may fall in this cost range. You can also use Modernize’s HVAC cost calculator to get a ballpark estimate.

Furnace Cost Table For Springfield, IL

The following can impact your final price: complexity of your vent path, a gas line reroute, any necessary electrical upgrades, and/or return duct changes.

What Do These Terms Mean?

The size furnace you need is also called “capacity.” Capacity is measured in BTUs. To get an estimate for what size furnace you might need, you can read our guide to furnace sizing for Illinois or use Modernize’s furnace size calculator. In general, homes between 1,700 and 2,300 square feet with average insulation often need a furnace somewhere between 70k and 100k BTUs.

AFUE stands for Annual Fuel Utilization Efficiency. In brief, it measures how efficient your furnace is. You can read Modernize’s blog post on AFUE ratings to learn more.

There are several different kinds of furnaces. A single-stage furnace is more budget-friendly, but it is either fully off or fully on. A variable-speed furnace is more expensive but can also be much more precise about the amount of airflow being directed into your rooms. You can learn more about heating systems by reading our guide.

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Permitting in Springfield and How Much It Costs

• Do you need a permit? Yes, you do. Anything that involves altering major home components/systems requires a permit in Springfield.
• Issuing authority: Springfield Building & Zoning will issue the permit. You will need an application for a mechanical permit.
• Typical fee range: ~$50–$150
• Inspection requirement: You will need a final inspection once the new furnace is installed. Ask your contractor if they will notify the city that you are ready for inspection or if you will need to take care of that.
• How long does it take to get the permit? Like-for-like replacements are often processed the same day or within one business day if paperwork is complete.

Springfield, IL Utilities: Rebates Offered for Furnaces

Utility companies we checked for this article are as follows:

• CWLP (electric)
• Ameren Illinois (gas in many areas)

Current Offers

• CWLP’s rebates page does not currently offer rebates or incentives for electric furnaces. However, if you are replacing your air conditioner along with getting a new furnace, you should check out their high-efficiency AC rebates, which range from $200 to $450. If you are open to either types of heating and cooling systems, then you may want to learn more about their heat pump rebates, which start at $200 per ton of cooling capacity.
• Ameren Illinois offers lots of energy-efficient discounts and rebates, but do not currently offer any for furnaces. However, like CWLP they offer incentives for heat pumps, including a $900 discount on a ducted air source heat pump. They also offer up to a $125 rebate on smart thermostats.

Note: Some rebates may require contractor participation and proof of permit. Be sure to check with your utility provider and/or contractor for more information.

We last checked for rebates from these providers in September of 2025. During heating season, this section of the page will be updated monthly, with the next update coming October 2025.

Labor Costs and Market Conditions

Springfield, IL has a wage range of ~$27 – $31/hr for HVAC professionals. While we were unable to track down an exact labor cost per hour for HVAC pros, you can reasonably assume it will be somewhere between 2X and 3X the hourly wage. Typically, installation cost for an HVAC system, including furnaces, will make up about a third of your total project cost.

Winter bookings fill quickly, and you will likely see prices surge since many homeowners are trying to schedule installations and repairs. Early fall, late spring, and summer all see lower prices and most room for flexibility in scheduling.

Ready to Get Quotes?

You can browse our list of furnace installers in Springfield, IL and check out their reviews, see if they have promotions available, and more.

If you would rather have Modernize do the research for you, click below and answer a few questions about your project to be matched with up to four HVAC pros in your area.

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Methodology & Sources

We build average furnace replacement costs in Springfield by using the following method:

• Data from ~12–24 months of Modernize/lead database + closed installs in Sangamon County and the Springfield area + verified contractor quotes
• Equipment MSRP bands (80–120k BTU, multiple efficiency levels) adjusted to local freight / markup
• Labor component = crew hours × local fully-loaded wage (including benefits, overhead, profit)
• Permit + inspection median from Springfield DOB schedules factored in

These costs exclude full duct redesign, major electrical upgrades, structural work, and hazardous material remediation, all of which will vary on a home-by-home basis.

This page was last updated September 2025 and is updated quarterly. As stated above, when Springfield, IL is in heating/furnace season, we check for rebates and savings monthly. This page will next be updated in December 2025, but rebates/savings will be checked (and updated where applicable) in October 2025.

Sources: Springfield municipal permit info, utility rebate pages, OEWS, NOAA HDD, and national equipment pricing.