Furnace Replacement in Algonquin, IL
Free in-home furnace replacement estimates in Algonquin, IL. A new furnace costs $3,000 to $9,500 installed as of October 2026, before Nicor Gas rebates.
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Get a Free New Furnace Estimate in Algonquin
Free in-home replacement estimates from a Lennox Premier Dealer.
- Good, Better and Best options with upfront pricing
- Nicor Gas rebates applied where you qualify
- Financing available, including 0% APR on select Lennox systems during Lennox promotions
- Sized with a load calculation, installed and permitted
Repair Instead of Replace?
If your furnace may be worth fixing, our Algonquin furnace repair team starts with a $75 diagnostic.
- $75 diagnostic ($99 evenings, weekends & holidays)
- 24/7 emergency service, with same-day appointments available
- Trucks stocked with common furnace parts, so most repairs are done in one visit
- Upfront, flat-rate pricing before any work starts
Choosing a New Furnace for a Algonquin Home
Most Algonquin homes were built from the 1980s through the 2000s, and the two-story homes in the subdivisions east and west of Randall Road often still have their original high-efficiency furnaces, now 20 to 30 years old. A replacement in those homes is usually a direct swap on the existing PVC vent, so the real decisions are sizing with a load calculation and choosing a blower that moves air well to the second floor. Near the Fox River and the historic downtown, older homes are a different job. Tight basements, chimney-vented furnaces and ductwork changed over the years mean we measure the space, check the ducts and plan new venting before recommending a model, so the new furnace fixes cold rooms instead of just replacing the old one.
Furnace Installation in Algonquin: How It Works
It starts with a free visit to your Algonquin home. We measure the house and ductwork, check the venting and gas supply and run a load calculation, then give you written Good, Better and Best Lennox options with rebates and financing laid out. On install day, our own crew removes the old furnace, sets the new one, connects venting, gas, condensate and controls, and tests combustion, temperature rise and airflow before we leave. We register the warranty and walk you through the new thermostat settings.
Repair or Replace Your Algonquin Furnace?
A gas furnace usually lasts 15 to 20 years in the Chicago area. A quick check is the $5,000 rule: multiply the furnace’s age by the repair price. If the result is over $5,000, replacement usually makes more sense. If your Algonquin furnace is younger or the repair is small, a repair may be the better value, and our Algonquin furnace repair team can diagnose it for $75.
Heating Services in Algonquin
Related services for Algonquin homeowners.
New Furnace Cost in Algonquin
As of October 2026, a new furnace from Pure Comfort costs $3,000 to $9,500 installed in Algonquin. Two-story sizing in Randall Road subdivisions and venting changes in older river area homes drive most of the furnace price. Replacing the furnace and AC together costs $8,000 to $19,000. Every estimate is free and in writing, with Nicor Gas rebates and financing shown before you decide.
| Item | Typical price | What changes it |
|---|---|---|
| Free in-home estimate | $0 | Load calculation and written Good, Better and Best options |
| New furnace, installed | $3,000 to $9,500 | Efficiency, single-stage versus two-stage or variable-speed, venting and return-air work |
| Furnace and AC together | $8,000 to $19,000 | Matched Lennox system with shared labor |
| Nicor Gas rebate | $150 to $225 | Qualifying 95%+ and 97%+ AFUE furnaces |
| Install time | Usually 1 day | Return-air, venting or zoning work can add a day |
| Permit and inspection | Arranged where required | Who files depends on the Village of Algonquin |
| Financing | 0% APR on select Lennox systems | During Lennox promotions; longer terms with interest on projects over $2,000 |
Where a permit is required, we confirm the Village of Algonquin’s current requirements and pull the permit, or help you file it in towns where the homeowner applies, then schedule any required inspection.
Why Algonquin Homeowners Choose Pure Comfort
Pure Comfort focuses on clear answers, sound system design and work that holds up after the service truck leaves.
Local and family-owned
Founded in Streamwood in 2008 and still owned and operated by the family who started it.
In-house technicians
Service and installation completed by our own crews, never subcontracted to another company.
Certified and insured
NATE and EPA Section 608 certified, fully licensed and insured for the work we carry out.
Lennox Premier Dealer
Premier Dealer standing, with service and repair covering all major HVAC makes and models.
Not Sure Whether to Repair or Replace?
We will assess the system, explain what we find and help you compare the realistic options for your Algonquin home.
Feedback From Homeowners We Serve
Choosing an HVAC company means trusting the people who enter your home and the work they leave behind. Read recent customer feedback about Pure Comfort’s communication, care and workmanship.
Recent Algonquin installs
Equipment installed by our team in Algonquin homes.
What Algonquin homeowners say
“We called Pure Comfort when our A/C stopped working when it was 85 degrees out and HUMID. Gene arrived the same day and was able to quickly diagnose the issue. He repaired our unit at a reasonable cost and we were up and running soon after. We'll definitely keep them in mind for any future needs and are happy to recommend. Thank you!”
Same-day AC repair
When you need HVAC due to an unexpected event you want someone who not only can provide the service you need….
Great service. Very professional. They try all avenues to resolve issues with equipment. Always a pleasure to work….
Had an issue with the thermostat reading erroneously, as soon as I contacted Pure Comfort, they got back….
Our serviceman, Gene, was very responsive, professional and thorough. He explained each aspect of the issue clearly and….
I called them at 7am with no heat, the only available spot they had was in the afternoon, 5 minutes later they called….
Gene was professional, on-time, very friendly and did a thorough job inspecting our A/C unit. He also checked….
Quick and honest service and advice last minute on a Sunday. Clean crew and equipment. Gene was a knowledgeable….
Gene did not give up on the problem. It was a crazy situation but he never gave up found the problem and fixed it. Thank you….
Furnace wasnt working. Called Pure Comfort after hours and they came right out and helped me. The furnace….
Very professional, definitely knowledgeable had the furnace fixed in 10 minutes. I can honestly say I trusted Gene….
Furnace Replacement Near Algonquin
Pure Comfort installs new furnaces throughout Algonquin (60102) and the towns around it, including furnace replacement in Carpentersville, furnace replacement in Barrington Hills and furnace replacement in Elgin. Our shop is in Streamwood, about 30 minutes away, and our own crews handle every install.
Not on the list? We cover much of the northwest suburbs, so call and we will confirm your address in a minute.
Algonquin Furnace Replacement FAQs
How much does a new furnace cost in Algonquin?
As of October 2026, a new furnace from Pure Comfort costs $3,000 to $9,500 installed in Algonquin. Two-story sizing in Randall Road subdivisions and venting changes in older river area homes drive most of the furnace price. Replacing the furnace and air conditioner together costs $8,000 to $19,000, and Nicor Gas rebates of $150 to $225 apply to qualifying 95% and 97% AFUE furnaces.
How do I get a free furnace estimate or quote in Algonquin?
Call (708) 515-4822 or book online. We visit your Algonquin home, measure the house and ductwork, run a load calculation and give you written Good, Better and Best options with rebates and financing. The estimate is free, and there is no pressure to decide on the spot.
Do I need a permit to replace a furnace in Algonquin?
Where a permit is required, we confirm the Village of Algonquin’s current requirements and pull the permit, or help you file it in towns where the homeowner applies, then schedule any required inspection.
Should I choose an 80% or a high-efficiency 96% furnace in Algonquin?
Most Algonquin subdivision homes already vent through PVC, so a 96% to 97% furnace is the natural choice. In older homes near the river that vent into a chimney, we price both an 80% furnace and a new PVC route for a high-efficiency model.
How long does a furnace replacement take?
Most furnace replacements in Algonquin take one day. Jobs that add return air, new venting or zoning can take a second day. If you are without heat, tell us when you call so we can schedule the install as soon as the equipment is available.
Is there a furnace replacement company near me in Algonquin?
Yes. Pure Comfort is based in Streamwood, about 30 minutes from Algonquin, and installs furnaces across 60102. We are a Lennox Premier Dealer with NATE-certified technicians, and our own crews do every install.
Is it worth replacing a 20- or 30-year-old furnace?
Usually, yes. Most furnaces last about 15 to 20 years in Chicago-area winters. A 20- to 30-year-old furnace is often far less efficient than a new high-efficiency model, parts get harder to find, and heat exchanger problems become more likely. If yours is safe and the repair is small, fixing it can still make sense. In Algonquin, we check the furnace and give you both prices so you can decide.
Schedule a Free Furnace Estimate in Algonquin
Get a careful diagnosis, straightforward options and help from a local HVAC company that stands behind its work.
- You get a scheduled window and the technician's name
- We diagnose and price the work before anything starts
- Replacement estimates are free, with no obligation
Call rather than using the form: (708) 515-4822. Forms are checked during business hours, so a phone call gets you a faster answer.