Furnace Replacement in Rockford, IL
We replace old and failing furnaces in Rockford and the nearby towns. You get a written price before we start, with the venting and the City of Rockford permit already included.
When is it time to replace your furnace?
It’s usually time when your furnace is 15 to 20 years old and needs a big repair. A quick test is the $5,000 rule: multiply the furnace’s age by the repair price, and if the answer is over $5,000, a new furnace is the better buy.
A 16-year-old furnace with a $350 repair comes to $5,600, so we’d talk about replacing it. The same furnace with a $120 repair comes to $1,920, so we’d fix it. We walk through the full math in our guide to the $5,000 repair or replace rule.
Other signs it’s time:
- Repairs every winter. You’ve called for service two or three seasons in a row.
- Rising gas bills. Your bill climbs even though you haven’t changed the thermostat.
- Uneven heat. Some rooms stay cold no matter how long it runs.
- Loud or rattling. Banging, squealing, or grinding from the blower or burners.
What’s included in a furnace replacement?
Every replacement we do covers sizing, removal, venting, the permit, and testing. Here is what that looks like on a normal Rockford job.
- Right-size the new furnace. We size it to your house, not just to the old unit’s label.
- Remove the old furnace. We disconnect it and take it out.
- New venting. High-efficiency furnaces vent through PVC pipe instead of the chimney.
- Water heater check. If your water heater still uses the chimney, we check whether it needs a liner.
- City of Rockford permit. We pull the mechanical permit and schedule the inspection.
- Start-up and test. We fire it up, check the venting, and set the thermostat before we leave.
How much does a new furnace cost in Rockford?
The price depends on the size of your home, the efficiency of the furnace, and how much venting and ductwork work it needs. We come out, look at your setup, and give you one written price before any work starts.
A high-efficiency furnace may also qualify for a Nicor Gas rebate, and we’ll help you with the paperwork. For repair prices on furnaces that are still worth fixing, see our furnace repair cost guide.
Why do older Rockford homes need a chimney check?
Many older Rockford homes have the furnace and water heater sharing one brick chimney. When the furnace switches to PVC venting, the water heater is left alone in a chimney built for two, and that can cause moisture and damage inside the chimney.
The fix is usually a liner for the water heater. We check for this on every replacement and put it in the quote up front, so it never shows up as a surprise later.
Furnace on its last legs?
Call us for a replacement quote. If your heat is already out, we answer 24/7.
Call (815) 706-4137Where do we replace furnaces?
We install new furnaces across Rockford and nearby towns in Winnebago and Boone County.
Not sure you need a new one yet? Start with our Rockford furnace repair page.
Furnace replacement FAQ
Should I repair or replace my furnace?
Multiply the furnace’s age by the repair price. If it comes to more than $5,000, replacing it usually makes more sense. If it’s under that, a repair is often the better choice.
How long does a furnace last?
Most gas furnaces last 15 to 20 years with yearly maintenance. After that, big repairs come more often.
How long does a furnace replacement take?
Most replacements are done in one day. Jobs that need new venting, a chimney liner, or duct changes can take a little longer, and we tell you that up front.
Do I need a permit to replace a furnace in Rockford?
Yes. The City of Rockford requires a mechanical permit to replace a furnace. We pull it and schedule the inspection as part of the job.
Can I get a rebate on a new furnace?
Nicor Gas offers rebates on qualifying high-efficiency furnaces. Rebate amounts change, so we check what’s available when we quote your job and help you file.
Do you replace furnaces in Loves Park, Roscoe, and Belvidere?
Yes. We replace furnaces in Rockford, Loves Park, Machesney Park, Roscoe, Rockton, Belvidere, Cherry Valley, and South Beloit.
New furnace, done right, in Rockford
Written price up front. Permit and venting included.