Fast, Reliable Emergency & Commercial HVAC Across Des Plaines
When your furnace quits at 2 a.m. during a Des Plaines polar vortex, or your rooftop unit fails on a commercial property near Mannheim Road, you need someone who answers the phone and shows up. We do both. Fireside Heating & Air Co. has been the company Des Plaines homeowners call for over 42 years because we answer live, 24 hours a day, and we quote the price you’ll pay before any work begins. Call us at (833) 983-1671 for emergency service anywhere in Des Plaines, from the River Road corridor to the O’Hare-adjacent neighborhoods of ZIP 60018.
Des Plaines built out fast in the 1950s and 1960s, and that postwar housing stock - ranch homes and split-levels with original ductwork and aging mechanical systems - is what we know. We’ve replaced furnaces in basements that flooded in 2013 and 2017, upgraded systems in sound-insulated homes near the airport, and kept commercial tenants comfortable along Elmhurst Road. This is our Emergency & Commercial HVAC work, and it’s rooted in knowing Des Plaines specifically.
Why Fireside Heating & Air Co. of Chicago Is Des Plaines’s Preferred Emergency & Commercial HVAC Company
We’ve served Des Plaines since 2018. That’s four decades of responding to the same streets, the same house types, the same weather patterns. Our technicians know which split-levels on Touhy Avenue still run original Carrier furnaces from 1965, and which homes near O’Hare got FAA sound-insulation upgrades that changed their ventilation needs entirely.
Our phones are answered by a live person around the clock, every day of the year. No voicemail trees, no callbacks in the morning when your heat is out now. The price we quote is the price you pay. And every repair and installation is backed by our 90-Day Done Right Promise - in writing, no paperwork to file, no arguing. If it’s not right, we make it right.
Most of our Des Plaines calls are completed in a single visit. Our trucks carry parts for Carrier, Trane, Lennox, and Goodman systems, so we’re not ordering components while your building sits without heat or cooling.
Our Emergency & Commercial HVAC Services in Des Plaines
24/7 Emergency HVAC
Des Plaines sits in the path of polar vortex events that can hold temperatures below −15°F for days. That’s when we see the most emergency calls - cracked heat exchangers in 50-year-old furnaces, failed inducer motors, and blower assemblies that finally give out under the load. We answer live at 2 a.m., dispatch a background-checked, uniformed technician, and get your heat restored. Our $50 off any repair over $250 applies to emergency calls too.
Commercial HVAC
Des Plaines’s commercial corridor along Elmhurst Road and Mannheim Road includes retail, light industrial, and office space with rooftop units and split systems that can’t afford downtime. We service commercial properties throughout ZIP codes 60016, 60017, 60018, and 60019 with upfront pricing and the same 90-Day Done Right Promise we offer homeowners. No separate commercial “department” - just the same journeyman-trained technicians who understand both residential and commercial equipment.
Rooftop Unit Service
Flat-roof commercial buildings in Des Plaines’s older commercial districts often run packaged rooftop units that have been exposed to decades of lake-effect humidity and freeze-thaw cycles. We inspect, repair, and replace RTUs with proper curb adapters and crane coordination. A failed rooftop unit in July doesn’t just mean discomfort - it means closed doors. We prioritize these calls and carry common ignition modules, blower motors, and control boards to minimize downtime.
Chiller Service
For larger commercial facilities in Des Plaines with chilled-water systems, we provide chiller diagnostics, refrigerant recovery, and compressor assessment. Chillers are capital equipment, and we give straight talk about repair versus replace based on age, refrigerant type, and your building’s cooling load profile. No pressure to replace what can be repaired; no Band-Aids on equipment that’s past its economic life.
HVAC Inspection
Our HVAC inspection service is particularly valuable in Des Plaines’s older housing stock. A 1960s split-level with original ductwork sized for an oversized, low-efficiency furnace needs careful evaluation before any new system is specified. We measure airflow, assess static pressure, and check for the ventilation deficiencies that sound-insulated homes near O’Hare almost always have. The inspection costs nothing compared to installing the wrong system in the wrong house.
Annual Maintenance
Our $89 Seasonal Tune-Up is designed for Des Plaines’s climate realities: pre-winter checks for heat exchanger integrity before the polar vortex season, and pre-summer checks for refrigerant charge and coil condition before the humid July days arrive. Maintenance catches the cracked exchangers, the weak capacitors, and the dirty burners that become emergency calls at the worst possible time.
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.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Des Plaines
We’re trained to service all nine major residential and commercial brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Our Des Plaines service trucks stock the most common parts for Carrier, Trane, and Lennox systems - the brands we see most often in this city’s 1950s and 1960s housing stock. When a furnace fails on a Friday night in January, that local parts inventory means we fix it then, not Monday morning. For commercial equipment and less common components, our supplier relationships get us same-day or next-morning delivery to Des Plaines.
Common Emergency & Commercial HVAC Problems We See in Des Plaines Homes
- Cracked heat exchangers in legacy furnaces during polar vortex events. Des Plaines’s location in northwest suburban Chicago exposes it to sustained sub-zero temperatures that stress 50-year-old steel heat exchangers beyond their design limits. We see these failures most often in original equipment on Touhy Avenue and in the River Road corridor neighborhoods.
- Post-flood furnace and air-handler failures in the Des Plaines River floodplain. Major flooding events in 2013 and 2017 submerged basement mechanical rooms in neighborhoods along River Road and near Big Bend Drive. We regularly perform emergency replacements with flood-elevated installations that place the new furnace on a platform above the documented flood level.
- Undersized or leaky original ductwork choking modern high-efficiency systems. Ranch and split-level homes built in Des Plaines’s postwar boom have ductwork designed for oversized, low-efficiency furnaces. When homeowners retrofit a modern variable-speed system, the existing ducts can’t move enough air. We measure, seal, and resize ductwork as part of the installation.
- Trapped humidity and poor indoor air quality in sound-insulated O’Hare-adjacent homes. The FAA-funded sound-insulation program installed triple-pane windows and added insulation without adding mechanical ventilation. The tightened envelope traps moisture and CO2. A new furnace in these homes almost always needs an ERV or HRV to meet current combustion-air and IAQ standards.
Pricing for Emergency & Commercial HVAC in Des Plaines, IL
We believe in upfront pricing: the number we quote is the number on the invoice. No add-ons, no surprises. Here’s what typical Emergency & Commercial HVAC work runs in the Des Plaines market:
| Service | Typical Range in Des Plaines |
|---|---|
| Furnace Repair | $150-$700 |
| AC Repair | $150-$650 |
| Seasonal Tune-Up | $89 (standing offer) |
| Commercial RTU Repair | $300-$1,200 |
| ERV/HRV Installation (sound-insulated homes) | $2,500-$4,500 |
Several factors move the needle within these ranges. Emergency calls outside standard hours carry a service fee, though we never charge simply because it’s night or weekend - only for the actual diagnostic and repair work. Parts availability for very old systems can add cost if we need to source obsolete components. And commercial rooftop units sometimes require crane rental, which we quote separately and in advance. Every estimate is free. Call (833) 983-1671 for an exact quote on your specific situation.
Our standing offers apply in Des Plaines: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% discount for seniors and veterans. We don’t run rotating promotions or expiration-date pressure. These are our standing terms.
We Also Serve Cities Near Des Plaines
Our service area extends throughout the northwest suburbs. We regularly respond to emergency and commercial HVAC calls in Park Ridge, Mount Prospect, Niles, and Elk Grove Village. Each of these cities has its own housing stock and climate exposure, but Des Plaines remains unique for its O’Hare-adjacent sound-insulation legacy and its river-flood history. If you’re in one of these neighboring communities, the same live-answer phones, same upfront pricing, and same 90-Day Done Right Promise apply.
Serving Des Plaines, IL - Our Local Coverage Area
We’re based in the Des Plaines 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 - Emergency & Commercial HVAC in Des Plaines
The FAA sound-insulation program added triple-pane windows and insulation to Des Plaines homes in the flight path without adding mechanical ventilation. A modern, correctly sized furnace in that tight envelope can’t draw adequate combustion air, and the trapped humidity and CO2 degrade indoor air quality. We install HRVs or ERVs to introduce controlled fresh air without wasting the energy you paid to generate. Call (833) 983-1671 for a free inspection of your ventilation situation.
Not necessarily immediately - we can often restore heat with a repair to get you through the cold snap. But a 1960s furnace with a cracked heat exchanger is a safety hazard and should be replaced before the next heating season. We give straight talk about repair versus replace based on the equipment’s condition, your budget, and how long you plan to stay in the home. Our free second opinion on any written estimate helps you compare options with confidence.
Yes. We’ve performed numerous flood-elevated furnace and air-handler installations in Des Plaines’s River Road corridor and other flood-prone areas. We build code-compliant platforms that place the equipment above the documented flood level, and we coordinate with any required permit inspections. This is specialized work that contractors in Rosemont or Park Ridge rarely encounter. Call us to assess your specific mechanical room layout.
It affects the homes, which affects the HVAC. Sound-insulated houses have tighter envelopes and different load calculations than identical homes outside the program boundary. Our technicians know to look for the newer windows amid original 1960s exteriors - that’s the visual cue that ventilation assessment is essential. Maintenance on these systems includes checking for moisture accumulation, inadequate combustion air, and the strain that poor ventilation places on the equipment.
A variable-speed system in an under-ventilated house runs longer and works harder to manage humidity that has no path to escape. The tight envelope traps latent moisture from cooking, showers, and respiration, and the AC compensates by running extended dehumidification cycles. An ERV or HRV, properly sized and commissioned, typically reduces cooling energy use by 15-25% in these homes while improving comfort. We can measure your home’s actual ventilation rate and show you the data.
Call (833) 983-1671 now for emergency service, a free estimate, or to schedule your $89 seasonal tune-up. A live person will answer, day or night, and we’ll be there when we say.
Written by Terry Kowalski, Owner at Fireside Heating & Air Co., serving Des Plaines since 2018.