Fast, Reliable Emergency & Commercial HVAC Across Prospect Heights
When your furnace quits at midnight on a January night in Prospect Heights, you need a company that answers the phone and shows up. We do both. Our Emergency & Commercial HVAC team at Fireside Heating & Air Co. has been serving Prospect Heights homeowners since 2018, and we know the split-level ranches along Palatine Road and the townhome clusters near Rand Road like our own neighborhoods. A live person answers every call, 24 hours a day, including holidays, and most emergency calls in ZIP 60070 are completed in a single visit. Call (833) 983-1671 for straight talk about what your system needs and what it will cost.
Why Fireside Heating & Air Co. of Chicago Is Prospect Heights’s Preferred Emergency & Commercial HVAC Company
Forty-two years in this business means we’ve worked on the original furnaces in Country Club Estates, the bi-levels near Prospect Heights Park District, and the commercial strips along Milwaukee Avenue. Prospect Heights homeowners call us back because we treat their homes the way we would our own mother’s - shoe covers on, no mess left behind, and a written 90-Day Done Right Promise on every job. No paperwork to file, no arguing if something needs adjustment. We just make it right.
Our response time to Prospect Heights typically runs under 90 minutes for emergency calls, faster than most companies coming from collar counties who don’t know the local street grid. We’re familiar with Cook County’s mechanical permit requirements, which all HVAC replacement work in Prospect Heights requires - a step some out-of-area contractors skip, leaving homeowners with unpermitted work that surfaces during home sales or insurance claims. We pull permits properly, every time.
We are Emergency & Commercial HVAC in Prospect Heights that homeowners here have relied on for generations. Terry Kowalski has built this company on the K.E.Y.S. code: Krafted right, Every time, Your home first, Standing behind it.
Our Emergency & Commercial HVAC Services in Prospect Heights
24/7 Emergency HVAC
Prospect Heights sits exposed on the flat Chicago plain with no geographic buffer from Arctic air masses. When wind chills drop below -20°F in January or February, a failed furnace is not an inconvenience - it’s dangerous. Our phones are answered by a live person around the clock, every day of the year, never a voicemail tree. We carry parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard on our trucks, so most emergency repairs in Prospect Heights are completed in one trip. The price we quote is the price you pay.

Commercial HVAC
Prospect Heights’s commercial corridors along Rand Road and Milwaukee Avenue depend on reliable heating and cooling through extreme seasonal swings - from humid July stretches above 90°F to subzero February mornings. We service commercial rooftop units, packaged systems, and split systems for retail, office, and light industrial properties throughout ZIP 60070. Our journeyman-trained technicians understand that downtime costs money, so we prioritize fast diagnosis and upfront pricing on every commercial call. We also handle Cook County permit compliance for commercial equipment replacement, ensuring your project meets code without delays.

Rooftop Unit Service
Strip malls and low-rise commercial buildings in Prospect Heights often rely on rooftop units for both heating and cooling. These systems take a beating from lake-effect winds and temperature swings that stress electrical components and heat exchangers alike. We perform full rooftop unit diagnostics, refrigerant charging, burner cleaning, and control calibration. When replacement is the better value, we size new units properly for the building’s actual load - not just what was there before - and coordinate crane access and permitting through Cook County.

Chiller Service
While less common in residential Prospect Heights, chillers serve several commercial and institutional buildings in the area. Our team handles chiller diagnostics, refrigerant management, compressor testing, and control optimization. We maintain EPA certification for proper refrigerant handling and document all work for compliance reporting.

Annual Maintenance & HVAC Inspection
Given Prospect Heights’s wide annual demand swing - among the widest in the country - preventive maintenance is not optional. Our $89 Seasonal Tune-Up includes full combustion analysis, refrigerant level check, electrical connection testing, and airflow measurement. For split-level homes with original single-zone duct systems, we also evaluate static pressure and return-air adequacy. Catching a blocked return or undersized duct run in October beats discovering it during a no-heat emergency in January.

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 Prospect Heights
We are trained to service all nine major residential brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Prospect Heights customers, this means we stock common parts locally and can often source same-day replacements for Lennox ignitors, Goodman control boards, and Rheem heat exchangers. We do not push one brand over another - we recommend what fits your home’s ductwork, your budget, and your timeline. Most repairs are completed in a single visit, and every job carries our 90-Day Done Right Promise in writing.
Common Emergency & Commercial HVAC Problems We See in Prospect Heights Homes
- Single-zone airflow imbalances in split-level homes. The upper half-levels overheat in winter while lower levels stay cold. Homeowners call for a “furnace problem,” but the real issue is an undersized return or inadequate supply to the lower level. We evaluate ductwork before replacing equipment.
- Short-cycling on high limit due to restricted airflow. Original duct systems in 1960s-1980s Prospect Heights ranches were sized for first-generation furnaces, not modern 96% AFUE models. The mismatch causes overheating and premature failure.
- Heat pump auxiliary lockouts in deep winter. Prospect Heights wind chills below -20°F can overwhelm heat pumps without adequate backup heat, triggering emergency no-heat calls in January and February.
- Unpermitted replacement work from out-of-area contractors. Because Prospect Heights falls entirely within Cook County, all HVAC installation requires mechanical permits and inspections. We pull permits properly so your work is documented and insurable.
Pricing for Emergency & Commercial HVAC in Prospect Heights, IL
We believe in upfront pricing: the number we quote is the number on your invoice. No add-ons, no surprises. Here is what typical service runs in the Prospect Heights market:
| Service | Price Range in Prospect Heights |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
Emergency service calls outside normal hours carry no additional “after-hours” surcharge - we answer the phone at 2 a.m. because that’s what our customers need, not to pad the bill. Duct evaluation and rebalancing, often necessary in Prospect Heights split-level homes, is quoted separately based on access and scope. Every repair over $250 qualifies for $50 off, and our Senior & Veteran 5% discount applies to all work. Call (833) 983-1671 for a free estimate - we’ll give you a firm number you can count on.
We Also Serve Cities Near Prospect Heights
Our service area extends throughout the northwest suburbs. We regularly respond to emergency calls in Wheeling, Arlington Heights, Mount Prospect, and Buffalo Grove - often passing through one to reach another. If you are near Prospect Heights, we are nearby.
Serving Prospect Heights, IL - Our Local Coverage Area
We’re based in the Prospect Heights 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 Prospect Heights
Yes. Because Prospect Heights lies entirely within Cook County, all HVAC replacement and installation work requires a mechanical permit and inspection. We pull permits for every qualifying job and schedule inspections so you are fully documented. Unpermitted work can derail home sales and create insurance complications. Call (833) 983-1671 and we will handle the paperwork - no charge for permit coordination.
It is almost always the ductwork, not the furnace. Prospect Heights split-levels were built with single-zone systems that cannot evenly distribute heated air across half-levels. We responded to a no-heat call on a split-level in the Country Club Estates neighborhood. The homeowner had a 15-year-old single-stage furnace that was short-cycling on high limit. Our tech found the original undersized return and a blocked supply run near the lower-level family room. We installed a new Carrier 96% AFUE furnace with a return-air rebalancing kit and added a zoning damper for the upper half-level, restoring even temperatures throughout the home. Before you replace equipment, let us evaluate your ducts - call (833) 983-1671 for a free assessment.
Yes. We service commercial rooftop units throughout Prospect Heights’s retail corridors, including properties along Rand Road and Milwaukee Avenue. Our technicians are trained on all major commercial brands and carry common ignition components, control modules, and refrigerants. We coordinate crane access for major repairs and handle Cook County permitting for replacements. Call (833) 983-1671 to schedule service or request a free estimate on replacement.
Yes. A live person answers our phones 24 hours a day, 7 days a week, 365 days a year - including nights, weekends, and holidays. Most emergency calls in Prospect Heights are completed in a single visit because our trucks carry parts for all nine major brands. There is no after-hours surcharge. Call (833) 983-1671 anytime; we will be there when we say.
Yes. Many Prospect Heights ranches have original duct systems sized for first-generation forced-air furnaces, not modern high-efficiency equipment or ductless add-ons. We evaluate your home’s heat load, existing electrical service, and structural access before recommending mini-split placement or a full system upgrade. Often, the better long-term value is a properly zoned central system with rebalanced ductwork. We will give you straight talk about repair versus replace and a written quote with no pressure. Call (833) 983-1671 for a free second opinion on any estimate you have already received.
Call Fireside Heating & Air Co. at (833) 983-1671 for emergency and commercial HVAC service in Prospect Heights. A live person will answer, day or night. We will quote your repair or installation upfront, back it with our 90-Day Done Right Promise in writing, and treat your home the way we would our own mother’s. Free estimates. Senior & Veteran discounts always available.
Written by Terry Kowalski, Owner at Fireside Heating & Air Co., serving Prospect Heights since 2018.