Home / Locations / HVAC Services in Downers Grove, IL / Furnace Repair in Downers Grove, IL
Furnace Repair in Downers Grove, IL
Downers Grove is mostly postwar split-levels and ranches, many still venting into an old chimney. Our diagnostic is $75 ($99 evenings, weekends and holidays). Most repairs fall between $100 and $700. Nothing gets done until you approve a flat-rate price.

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Need Furnace Repair in Downers Grove?
From the postwar ranches and split-levels to the older homes near downtown, our Streamwood shop is about 32 minutes away.
- $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
Time for a New Furnace in Downers Grove?
A Lennox Premier Dealer offers free in-home replacement estimates in Downers Grove, with every furnace sized to the house.
- 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
Quick Summary
Pure Comfort Heating and Cooling repairs furnaces in Downers Grove, IL (60515, 60516 and 60517) from our shop in Streamwood, about 32 minutes away. The diagnostic is $75 ($99 evenings, weekends and holidays), most furnace repairs cost $100 to $700, and you approve a flat-rate price before any work starts. Phones are answered 24/7, same-day service is common, and stocked trucks finish most repairs in one visit. Call (708) 515-4822.
Reviewed by Gene Baldassano, owner and NATE- and EPA 608-certified HVAC technician since 2008 · Updated
Furnace Not Working? Common Furnace Problems in Downers Grove Homes
Most of Downers Grove was built after World War II, and split-levels and ranches make up a large share of the village. In a split-level, one furnace serves rooms at three or four heights, and weak return air can make it overheat and cycle off. Many ranches still vent into an old chimney, where a blocked or deteriorating flue can trip the furnace’s safety switch. Furnaces from the 1990s and 2000s are now at the age when inducer motors, igniters and control boards fail.
How a Downers Grove Furnace Repair Visit Works
In a Downers Grove split-level or ranch, we check the venting first, since many older homes still vent into a chimney. Airflow between levels gets a close look too, because a starved return can shut a furnace off. From there, our method holds steady. We follow the heating sequence from the thermostat call through ignition. Then we check the safeties, electrical parts, venting, drainage and airflow. Parts are measured before anything is replaced. You hear the cause and a flat-rate price before work begins. Our trucks carry the common furnace parts, so most furnaces are fixed on the first visit. We repair all major brands, including furnaces from other installers. For most brands we handle the manufacturer parts warranty claim, so you pay labor only.
Repair or Replace Your Downers Grove Furnace?
Many Downers Grove homes are on their second or third furnace, and units from the 1990s and 2000s are at the age when major parts fail. A well-maintained gas furnace lasts about 15 to 20 years in the Chicago area. Apply the $5,000 rule: multiply the furnace’s age by the repair price. Under $5,000, repair usually makes sense. Over $5,000, get a replacement price too. A cracked heat exchanger is a safety issue at any age. Replacement estimates are free. Nicor Gas rebates apply to qualifying high-efficiency furnaces, and financing is available, including 0% APR on select Lennox systems during Lennox promotions.
Heating Services in Downers Grove
Related services for Downers Grove homeowners.
Downers Grove Furnace Repair Cost and Timing
In Downers Grove, most furnace repairs cost $100 to $700, with about $300 the average. Igniters, flame sensors and pressure switches sit at the low end. Inducer motors, control boards and blower motors cost more. If the chimney flue or venting is part of the problem, we explain that cost separately. You approve a written, flat-rate price before work starts.
| Job | Typical window | What changes the number |
|---|---|---|
| Diagnosis | Same day when a truck is open | Scheduling and after-hours demand |
| Furnace repair | Often same day | Smaller parts versus major safety or heat-exchanger work |
| AC repair | Same day to 48 hours | Electrical work versus sealed-system repair |
| Furnace or AC replacement | 1 to 2 install days after equipment arrives | Return-air work, two-story airflow, condenser placement, and installation access |
| Mini split or tankless | Site-specific | Electrical, gas, venting and installation location |
| Tune-up | 60 to 90 minutes | System age, condition and last service |
Diagnosis
Typical window
Same day when a truck is open
What changes it
Furnace repair
Typical window
Often same day
What changes it
AC repair
Typical window
Same day to 48 hours
What changes it
Furnace or AC replacement
Typical window
1 to 2 install days after equipment arrives
What changes it
Mini split or tankless
Typical window
Site-specific
What changes it
Tune-up
Typical window
60 to 90 minutes
What changes it
Why Downers Grove Homeowners Choose Pure Comfort
Many Downers Grove homes still vent into a chimney and split heat across several levels, so we check both before quoting.
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.
Our replacement process considers sizing, airflow, ductwork, filtration, venting, electrical requirements and controls. Where a permit is required, we confirm the current Downers Grove requirements and pull the permit, or help you file it in towns where the homeowner applies, then schedule any required inspection.
Not Sure Whether to Repair or Replace?
Furnace shutting down in a cold snap, or one room that never warms up? We will find the cause in your Downers Grove home and explain your options.
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.
What Downers Grove homeowners say
“Great service. Very professional. They try all avenues to resolve issues with equipment. Always a pleasure to work with”
Repeat customer
“Highly recommended. Highly skilled and professional team. Very responsive too.”
Service visit
“Gene was great!”
Service visit
“Quick, direct, and to the point. A good understanding of heating systems.”
Heating service
“I was having a problem with my 8 year old water heater. I made the mistake of calling a “reputable” local plumbing company to make the repair. After $700 of replacing almost all of the guts of the unit, they said I need a new tank, to the tune of about style="margin:10px 0 12px;font-style:normal;border:0;padding:0",800. That did not sit well with me so I called Pure Comfort for a second opinion. Boy, I am glad I did! Gene came in and spend extra time to carefully figure out the problem, instead of just agreeing with the last guy. He figured out the pilot had been installed backwards!! Once he put it on correctly, the water heater fired up perfectly!”
Water heater 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 Repair Near Downers Grove
Pure Comfort repairs furnaces throughout Downers Grove and the towns around it, including furnace repair in Lisle, furnace repair in Lombard and furnace repair in Glen Ellyn. Drive time: our shop in Streamwood is about 32 minutes from Downers Grove in normal traffic. Zip codes: we cover Downers Grove homes in 60515, 60516 and 60517.
Furnace repair in nearby towns
- LisleFurnace repair
- LombardFurnace repair
- Glen EllynFurnace repair
- Villa ParkFurnace repair
- WheatonFurnace repair
Near Downers Grove but not listed? We serve towns within about 20 miles of Streamwood. See all service areas or call (708) 515-4822.
Downers Grove Furnace Repair FAQs
How much does furnace repair cost in Downers Grove?
The diagnostic is $75, or $99 evenings, weekends and holidays. Most furnace repairs cost $100 to $700, and about $300 is typical. You approve a flat-rate price before any work starts.
How fast can you get to Downers Grove?
Our Streamwood shop is about 32 minutes from Downers Grove in normal traffic. We answer 24/7 and offer same-day furnace repair when a truck is open.
Why does my Downers Grove split-level have one cold level?
In a split-level, one furnace serves rooms at three or four heights, so the lowest level often gets too little warm air. A weak blower, closed registers or too few returns are common causes. We check the furnace and airflow and recommend a repair or balancing fix.
Should I repair a 20-year-old furnace?
Use the $5,000 rule: multiply the furnace’s age by the repair price. Under $5,000, repairing usually makes sense. Over $5,000, it is worth getting a replacement price too. A cracked heat exchanger usually means replacement.
Why does my furnace start, then shut off after a few minutes?
Short cycling is often a dirty flame sensor, a pressure switch fault from a blocked vent or condensate trap, or overheating from poor airflow. We test each one before quoting a repair.
Do you repair furnace brands other than Lennox?
Yes. Pure Comfort is a Lennox Premier Dealer, but we repair all major furnace brands in Downers Grove, including furnaces installed by other companies.
What is the $5,000 rule for furnace repair?
Multiply the age of the furnace by the repair price. If the total is more than $5,000, replacing usually makes more sense than repairing. For example, a $350 repair on a 16-year-old furnace comes to $5,600. It is a rule of thumb, not a hard cutoff, so we give you both options in writing.
Schedule Furnace Repair in Downers Grove
Call any hour or book online for furnace repair anywhere in Downers Grove (60515, 60516 and 60517).
- 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.





