HVAC Services in Prospect Heights, IL
A furnace that quits on a January night in Prospect Heights can leave your home below 50 degrees before morning. AC repair during a July humidity surge needs same-day response, not next-week scheduling. Fireside Heating & Air Co. of Chicago has kept Prospect Heights homes heated and cooled since 2015, with a live person answering every call at (833) 983-1671, including the 2 a.m. emergencies no one plans for.
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.
Why Prospect Heights Homeowners Choose Fireside Heating & Air Co. of Chicago
We’ve worked in the ranches along Palatine Road and the split-levels near Camp McDonald Road enough times to know which basements flood first and which attic returns starve the second floor. That familiarity matters when a technician walks in already understanding your home’s quirks instead of figuring them out on your clock.
Our reviews from Prospect Heights homeowners mention the same things repeatedly: we show up when we say, we explain the repair before starting, and we leave the price where we quoted it. The 90-Day Done Right Promise means if something isn’t right, we make it right, in writing, with no paperwork to chase down. No arguing. No “we’ll get back to you.” Just fixed.
Our technicians are background-checked, uniformed, and trained as journeymen. They put on shoe covers without being asked. They work in your home the way they would in their own mother’s. After 42 years in business, we’ve learned that courtesy costs nothing and saves everything.
HVAC Services We Offer in Prospect Heights
AC Repair & Installation
Prospect Heights summers hit hard when humidity climbs past 80 percent and your compressor labors through its third straight 90-degree day. We repair and replace central air systems, with most cooling calls completed in a single visit and pricing quoted upfront before any work begins. Learn more about our AC Repair & Installation in Prospect Heights.

Heating & Furnace Service
When wind chills drop below -20°F on the flat Chicago plain, a 1960s-era furnace running past its rated lifespan is a gamble no homeowner should take. We service and replace gas and electric furnaces, with particular experience resolving the static pressure problems common in Prospect Heights’s original single-zone duct systems. Learn more about our Heating & Furnace in Prospect Heights.

Heat Pump & Mini Split Systems
Heat pumps have improved dramatically, but Prospect Heights’s deep winter still demands proper auxiliary heat backup. We size and install ducted heat pumps and ductless mini-splits for homes where the original ductwork can’t be salvaged, including the bi-levels on the east side where second-floor additions never got proper returns. Learn more about our Heat Pump & Mini Split in Prospect Heights.

Air Quality & Ventilation
Tight 1970s construction traps particulates, and older ductwork harbors decades of accumulation. We install whole-home purifiers, humidifiers, and ventilation solutions sized to your existing system, not generic add-ons that strain an already undersized blower.

Emergency & Commercial HVAC
Our phones are answered by a live person 24 hours a day, 7 days a week, including holidays. Commercial properties along Rand Road and Elmhurst Road get the same journeyman technicians and upfront pricing as residential customers, with priority scheduling for systems protecting inventory or tenant spaces.

Neighborhoods We Serve in Prospect Heights
We make most Prospect Heights service calls within 90 minutes during business hours and under two hours for after-hours emergencies. These are the areas we know best:
- Wheeling Heights - ranch homes with original ductwork needing rebalancing
- Countryside - split-levels with chronic upper-level temperature swings
- Prospect Manor - older ranches due for furnace replacement sizing
- Elmhurst Road corridor - mixed residential and light commercial properties
- Palatine Road area - townhomes and condominiums with shared mechanical systems
Why Prospect Heights’s Climate & Housing Affect HVAC
Prospect Heights developed primarily in the 1960s and 1970s as a more affordable alternative to neighboring Mount Prospect and Arlington Heights. That timing left the city with a dense concentration of ranch and split-level homes whose original single-zone duct systems were sized for first-generation forced-air furnaces, not today’s high-efficiency equipment. When homeowners upgrade to modern 96% AFUE furnaces, the old undersized ductwork causes static pressure problems and comfort complaints, making duct evaluation and rebalancing a near-mandatory part of every system replacement here.
The split-level construction is particularly common and creates chronic airflow imbalances. Upper half-levels overheat in winter while lower levels stay cold. We’ve answered enough repeat service calls in Countryside and Wheeling Heights to recognize the pattern: it’s usually a zoning or return-air deficiency, not equipment failure. Fixing the duct design solves what a third service call never would.
Geography compounds the challenge. Prospect Heights sits on the flat Chicago plain with no geographic buffer from Arctic air masses. Wind chills below -20°F in January and February alternate with humid 90°F-plus stretches in July, one of the widest annual demand swings in the country. Equipment must be sized and maintained for both extremes. Heat pumps without adequate auxiliary heat backup have historically underperformed here in deep-winter conditions, which is why we evaluate your actual heating load before recommending any system type.
There’s also the permit issue. Because Prospect Heights falls entirely within Cook County, all HVAC replacement and installation work requires Cook County mechanical permits and inspections. Some homeowners, and out-of-area contractors used to collar-county rules, overlook this step. We pull permits as standard practice on every job in ZIP 60070. It’s not extra service. It’s the law, and it’s included in every quote.
Pricing for HVAC in Prospect Heights
We quote every job upfront. The price we give is the price you pay. No add-ons discovered mid-job, no “while we’re here” upsells.
| Service | Typical Range in Prospect Heights |
|---|---|
| Diagnostic service call | $89-$149 |
| Standard repair (parts + labor) | $180-$650 |
| Major repair (compressor, heat exchanger) | $1,200-$2,800 |
| Furnace replacement (mid-efficiency) | $3,800-$5,500 |
| Furnace replacement (high-efficiency, 96% AFUE) | $4,800-$7,200 |
| AC replacement (3-ton, central) | $4,200-$6,800 |
| Ductless mini-split (single zone) | $3,500-$5,200 |
| Seasonal tune-up | $89 |
Current offers: $50 off any repair over $250, free second opinion on any written estimate, $89 seasonal tune-up, and a permanent 5% senior and veteran discount. Call (833) 983-1671 for an exact quote on your system. Estimates are free.
Service Area - Cities Near Prospect Heights
We also serve homeowners in Wheeling, Arlington Heights, Mount Prospect, and Buffalo Grove from our Chicago base. Each city has its own permitting requirements and housing stock patterns, and we adjust our approach accordingly rather than applying a one-size-fits-all method.
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 About HVAC in Prospect Heights
Most furnace repairs in Prospect Heights run between $180 and $650, depending on the part and accessibility. Older Lennox and Goodman units common in 1970s ranches here often need blower motor or ignition control replacements, which fall in the middle of that range. Call (833) 983-1671 for an exact quote. Estimates are free.
Yes, we complete most AC repair calls in Prospect Heights same day during cooling season, and our phones are answered by a live person 24/7 to schedule emergency visits. We carry common parts for Carrier, Trane, Lennox, and other major brands on our trucks. Call (833) 983-1671 to check current availability.
Replace if your furnace is past 15 years and the repair exceeds 30% of replacement cost, or if you’ve had two major repairs in three years. In Prospect Heights, we see many 25- to 30-year-old York and Rheem furnaces still running but operating below 70% efficiency, which means every winter month costs more than it should. We give straight talk about repair versus replace, with no pressure either way. Call (833) 983-1671 for a free assessment.
Yes, all HVAC replacement and installation in Prospect Heights requires a Cook County mechanical permit and inspection because the city lies entirely within Cook County. We pull permits on every job as standard practice. Some out-of-area contractors skip this step, which can void your homeowner’s insurance and create problems at resale. Fireside includes permit costs in every replacement quote.
The split-level design common in Prospect Heights was built with single-zone ductwork that cannot properly serve multiple half-levels. Upper areas overheat in winter while lower levels stay cold. The fix is usually duct rebalancing, return-air additions, or zoning modifications, not a bigger furnace. We’ve resolved this exact issue in dozens of Countryside and Wheeling Heights homes. Call (833) 983-1671 to schedule an airflow evaluation.
Ready to get your system sorted? Call Fireside Heating & Air Co. of Chicago at (833) 983-1671 for a free estimate. A live person will answer, day or night, and we’ll be there when we say.
Written by the team at Fireside Heating & Air Co., serving Prospect Heights since 2018.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Prospect Heights Customers Say
"Blower motor on a twelve year old furnace. He gave me the honest math on repair against replace and did not push me toward the bigger ticket."
- Paige Hoffman"The maintenance plan is actually worth it. They turn up twice a year and the last visit caught a refrigerant leak before it became a July disaster."
- Kurt Anderson"Ductwork in the attic had a disconnected run dumping cold air into the insulation. He found it, resealed it, and a bedroom that was always hot is normal now."
- Hector Guzman