Fast, Reliable Heating & Furnace Across Hobart
Furnace repair in Hobart, Illinois typically costs $150-$700, while a full replacement runs $3,500-$7,500 depending on the home’s ductwork condition and heating load. Most repairs are completed in a single visit, and our Heating & Furnace team carries parts for Carrier, Trane, Lennox, and Goodman systems on every truck. Call (833) 983-1671 - a live person answers, even at 2 a.m.
We’ve been driving to Hobart since 2018. We know the lake-effect bursts that send thermometers plunging while Gary and Griffith stay ten degrees warmer. We know the mid-century ranches along US-30 with furnaces crammed into closets barely wide enough for a technician to turn around. And we know that when your heat goes out on a January night with eighteen inches of fresh snow, you don’t want a voicemail tree. You want a live voice, a truck already stocked for your neighborhood, and a technician who puts on shoe covers without being asked.
Why Fireside Heating & Air Co. of Chicago Is Hobart’s Preferred Heating & Furnace Company
Forty-two years of service means something in Hobart. It means we’ve replaced furnaces in the same Lake George Drive ranches three times as families grew and sold and grew again. It means our technicians have crawled through enough Hobart crawlspaces to recognize the musty smell of a moisture-compromised heat exchanger before they even open the cabinet. Terry Kowalski built this company on the Keystone Standard - Krafted right, Every time, Your home first, Standing behind it - and that standard travels with us across the Lake County line every time we head east on US-30.
Our phones ring at all hours. A live person answers every call, 24 hours a day, 7 days a week, including holidays. No pressing 1 for service. No callback promises that evaporate. When we say we’ll be there, we will be there.
The 90-Day Done Right Promise applies to every Hobart job we touch. If it’s not right, we make it right - in writing, no paperwork, no arguing. That’s not a slogan. That’s how Terry Kowalski has run this company since 2018.
Most of our Hobart calls are completed in one visit. Our trucks carry replacement ignitors, gas valves, blower motors, and heat exchanger inspection cameras specifically for the Carrier, Trane, Lennox, and Goodman units we see most often in 46342 zip codes.
Our Heating & Furnace Services in Hobart
Furnace Repair
Hobart’s lake-effect winters don’t negotiate. When your furnace quits on a night the wind is howling off Lake Michigan, you need a technician who arrives with the right part and doesn’t waste time diagnosing. We repair all nine major brands, but in Hobart we see particular patterns: cracked heat exchangers from decades of moisture corrosion in crawlspace-mounted units, failed ignitors in high-cycling systems with leaky ducts, and gas valves compromised by the voltage fluctuations that plague older 46342 neighborhoods. Our $50 Off Any Repair Over $250 applies to every Hobart call. The price we quote is the price you pay.

Furnace Replacement
Replacing a furnace in Hobart is rarely a simple swap. Those mid-century ranches and split-levels built during the Northwest Indiana steel boom were fitted with ductwork sized for the heating loads of 1955, not 2025. We’ve measured supply trunks in Hobart homes losing 25-30% of heated air to attic bypasses and crawlspace gaps before a single degree reaches the bedroom registers. That means any replacement we quote includes a duct sealing assessment as standard practice. We won’t install a new 96% AFUE furnace and let it fight against ducts that bleed heat into your crawlspace. We sized a compact 80% AFUE Lennox for a tight-clearance townhome on Lake George Drive last winter - original 1960s Carrier furnace, heat exchanger cracked from moisture corrosion, closet barely thirty inches wide. We sealed the supply ducts, upgraded to a rolling-code remote thermostat for alley-access security, and the homeowner finally had even heat in every room.

Furnace Tune-Up
Our $89 Seasonal Tune-Up is built for Hobart’s specific abuse patterns. We pull and inspect heat exchangers with a borescope camera, checking for the moisture-corrosion cracking we see accelerate in lake-humidity environments. We test gas pressure and combustion analysis on every unit. We inspect condensate drains for the algae and sediment that build up in high-dew-point summers. And we measure temperature rise across the coil to catch the duct losses that sabotage efficiency in undersized steel-era ductwork. Senior and veteran homeowners receive their permanent 5% discount on tune-ups as well. Done right - or we make it right.

Heat Exchanger Inspection & Replacement
This is the safety call we never rush. A cracked heat exchanger can introduce carbon monoxide into your living space, and in Hobart’s tightly built mid-century homes with limited combustion air, the risk compounds. We use digital borescope cameras and combustion analyzers on every inspection. If replacement is necessary, we match the new exchanger to your system’s actual heat load, not the original specification from a house that may have gained insulation or lost windows since 2018. We’ve found exchangers failing at eight years in Hobart’s corrosive lake-humidity environment - half the manufacturer’s predicted lifespan - because the installation didn’t account for local conditions.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Hobart
We carry factory-authorized parts and replacement components for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard on our Hobart-bound trucks. For the brands we see most frequently in 46342 - Carrier, Trane, Lennox, and Goodman - we stock the common failure items: ignitor assemblies, pressure switches, blower motors, and control boards. That inventory means most Hobart repairs don’t wait for a parts run back to Chicago. Your furnace doesn’t care about supply chain delays when it’s seven degrees and snowing sideways off Lake Michigan.
Common Heating & Furnace Problems We See in Hobart Homes
- Rapid furnace cycling in mid-century ranches. The original ductwork in Hobart’s 1950s-1970s homes is too small for modern furnace airflow. The system overheats, hits the high-limit switch, and shuts down prematurely. Rooms stay cold. The furnace wears out fast. We measure static pressure and temperature rise to confirm, then recommend duct modification or sealing before any equipment change.
- Heat exchanger corrosion from lake-humidity exposure. Furnaces mounted in crawlspaces or damp basements near Lake George absorb persistent moisture. The humidity doesn’t spike and leave - it lingers. We’ve replaced heat exchangers in Hobart that showed pitting and cracking years ahead of schedule, always in homes where the prior contractor never checked condensate drainage or crawlspace vapor barriers.
- Heat pump-only systems failing on lake-effect nights. Hobart’s lake-facing slopes can see design-day loads well below zero with minimal warning. A heat pump without robust auxiliary heat stages simply cannot keep up. We size auxiliary heat for the acute cold-load spikes, not regional averages, because regional averages don’t keep your pipes from freezing at 3 a.m.
- Outdoor unit corrosion near US-30 and the I-65 corridor. Road salt aerosols, residual industrial particulates from the Gary-Hammond airshed, and persistent lake moisture create a corrosive soup that eats fin coatings and electrical contacts. Condensers and heat pumps on Hobart’s south end and low-lying wetland corridors often show degradation two to three years ahead of inland units. We inspect and coat where we can, and we recommend corrosion-resistant models for replacements in these zones.
Pricing for Heating & Furnace in Hobart, IL
We quote every job upfront. The price you hear is the price on the invoice. No add-ons discovered mid-repair, no “while we’re in there” surprises.
| Service | Typical Range in Hobart |
|---|---|
| Furnace Repair | $150-$700 |
| Furnace Replacement | $3,500-$7,500 |
| Furnace Tune-Up | $80-$200 |
What moves a Hobart job toward the higher end? Ductwork modification on replacement jobs is the big variable. If your 1962 ranch needs supply trunk resizing or extensive sealing to achieve rated efficiency, that adds labor and material. Heat exchanger replacement on a high-end condensing furnace also trends higher due to part cost and the precision required for combustion setup. Emergency calls outside normal hours carry no premium - we answer 24/7 at the same rates.
Every estimate is free. Call (833) 983-1671 and we’ll send a technician to your Hobart home with a tablet, a measuring tape, and straight talk about repair versus replace.
We Also Serve Cities Near Hobart
Our service radius extends naturally from our Chicago base through Northwest Indiana. We regularly run trucks to Hobart, Lake Station, Gary, Griffith, and Highland - often multiple stops in a single day. The same live-answer phones, the same 90-Day Done Right Promise, and the same journeyman-trained technicians cover every community in our service area.
Serving Hobart, IL - Our Local Coverage Area
We’re based in the Hobart area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Heating & Furnace in Hobart
Because your new furnace’s efficiency rating means nothing if 25-30% of the heated air leaks into your attic or crawlspace before reaching the registers. Hobart’s mid-century steel-boom homes were built with undersized ductwork that creates high static pressure, forcing seams apart and collapsing old tape. We seal and test on every replacement. Call (833) 983-1671 for a free duct assessment with any furnace quote.
You need a furnace properly sized for Hobart’s acute cold-load spikes, not regional heating averages. Lake-effect events can drop temperatures twenty degrees below forecast overnight. We perform Manual J load calculations using Hobart’s design-day data, and we specify auxiliary heat stages robust enough for subzero lake-effect nights. A contractor using Merrillville or Valparaiso specifications will undersize your system.
Persistent humidity accelerates corrosion and cracking, particularly in crawlspace-mounted units or homes with poor condensate drainage. Hobart’s position in the Lake Michigan humidity belt means moisture exposure year-round, not just summer. We inspect heat exchangers with borescope cameras during every tune-up and replacement evaluation, looking for the pitting patterns we see earlier here than in inland markets.
We don’t recommend it. Heat pump-only systems struggle when lake-effect cold snaps push temperatures well below zero, which happens multiple times each winter in Hobart. Without properly sized auxiliary heat - electric resistance or gas furnace backup - you’ll have cold rooms, frozen pipes, and emergency calls. We size dual-fuel or furnace-backup systems for Hobart’s actual worst-case conditions.
Hobart’s combination of lake moisture, road salt aerosols from US-30 and I-65, and residual industrial particulates creates a corrosive environment that exceeds manufacturer baseline assumptions. Units near Lake George and the south-end wetland corridors show fin degradation and electrical contact corrosion two to three years ahead of inland installations. We inspect for this specifically and recommend corrosion-resistant coatings or models when we replace equipment in these zones. Call (833) 983-1671 for a free inspection.
Written by Terry Kowalski, Owner at Fireside Heating & Air Co., serving Hobart and Northwest Indiana since 2018.