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HVAC emergency in Chicago? Call Bernie's Heating & A/C Service now! Same-day service available for all heating and cooling emergencies.

We Fix First, Don't Push Replacements

Furnace Repair Chicago

When your furnace stops working at 2am in January, you need a mechanic—not a salesperson. We fix what's broken. No commission techs means no pressure to replace what can be repaired.

Call (773) 900-6248
24/7 Emergency Service
No Commission Techs
Upfront Pricing
Same-Day Service

Why Bernie's is Different

Most HVAC companies pay techs on commission. Guess what they recommend? A new furnace. Every time. We pay our techs hourly, so they diagnose honestly and fix what's actually broken.

No Commission = Honest Diagnosis

Our techs make the same hourly rate whether they fix your flame sensor for $89 or sell you a $6,000 furnace. They have zero incentive to upsell. That's intentional.

We Actually Troubleshoot

Most companies today train "parts changers," not mechanics. Our guys use multimeters, check pressures, test voltages. We find the root cause instead of guessing.

We Fix What Others Won't

Got a 20-year-old furnace? Other companies will condemn it to sell a replacement. We'll fix it if it makes sense for your budget. Sometimes a $250 repair buys you 3 more years.

Common Furnace Problems We Fix Daily

We see the same issues over and over in Chicago homes. Here's what's probably wrong with your furnace—and what it truely costs to fix.

Igniter Failed

$150-250 repair

The hot surface igniter cracks after 10-15 years. You'll hear the furnace try to start but no flame. Common on all brands. 30-minute fix.

Dirty Flame Sensor

$89-150 service

Furnace lights for 5 seconds, then shuts off? That's a dirty flame sensor. Most techs replace it for $250. We clean it for alot less.

Blower Motor Issues

$350-600 repair

Noisy motor, weak airflow, or capacitor failure. Chicago bungalows with dusty basements kill blower motors. We stock common replacements.

Pressure Switch

$180-280 repair

Furnace won't start, LED shows pressure switch error. Usually a clogged condensate drain or bad inducer motor. We diagnose which.

Heat Exchanger Crack

$2,000-3,500 warranty labor

Most heat exchangers have 20-year or lifetime warranty. We replace the part under warranty instead of selling you a whole new furnace.

Thermostat Problems

$120-350 fix

Bad wiring, dead batteries, WiFi disconnects. Half the "broken furnaces" we diagnose are actually thermostat issues. Easy fix.

Chicago Furnace Repair Challenges

Chicago's not like the suburbs. Old homes, tight basements, weird layouts. We've seen it all.

Chicago Bungalows (1910-1940)

Low basement ceilings, furnace crammed next to the water heater. Ductwork held together with duct tape from the 1970s. We're used to it. We bring extra drop lights because your basement has one 40-watt bulb.

Two-Flats & Three-Flats

Two furnaces in a 3x6 closet. The second-floor tenant's furnace is blocking the first-floor unit. We've done surgical repairs where other companies said "impossible."

Greystones & Old Victorians

Converted from coal to gas in the 1950s. Original radiators. Steam pipes. Boilers disguised as furnaces. We know the difference and fix both.

Downtown Service Note

For downtown locations (Loop, River North, Streeterville, Gold Coast, etc.):

$100 deposit required

The deposit covers our time finding parking, feeding meters, and dealing with downtown logistics. It's waived if you provide parking.

We're not trying to gouge you—downtown service calls take 45 minutes of parking roulette before we even knock on your door. Most customers understand.

We Know Your Neighborhood

Every Chicago neighborhood has different housing stock and different furnace problems. We've worked in all of them.

Jefferson Park

Frame houses, drafty attics. Short-cycling furnaces are common because of airflow issues. We know how to adjust pressure switches for your home.

Logan Square

Mix of old and renovated. We've replaced alot of heat exchangers in renovated greystones where contractors installed the wrong size furnace.

Portage Park

Solid brick bungalows, reliable older furnaces. When other companies condemn them, we fix them. Your 1995 Carrier has 10 more years if maintained.

Avondale

Two-flats with tiny basements. Tight working conditions don't scare us. We've swapped furnaces in closets where you can't stand up straight.

Lincoln Park

Renovated victorians with high-end Carrier Infinity systems. We service the premium stuff too—and we're more honest than the dealer network.

Belmont Cragin

Hard-working familys who need heat, not a sales pitch. We waive the diagnostic fee if you fix it with us. Honest work for honest people.

Frequently Asked Questions

Why is my furnace not heating?

Most no-heat calls are caused by a dirty flame sensor (15-minute fix), dead igniter ($150-250 repair), or thermostat issues. We diagnose the actual problem instead of just selling you a new furnace. Our techs aren't on commission, so they have no reason to upsell.

How much does furnace repair cost in Chicago?

Common repairs: Flame sensor cleaning ($89-150), igniter replacement ($150-250), blower motor ($350-600), pressure switch ($180-280), thermostat ($120-350). Heat exchanger replacement under warranty: $2,000-3,500 (labor). We give upfront pricing before we start work.

Should I repair or replace my furnace?

If your furnace is under 15 years old and the repair is under $800, fix it. If it's 20+ years old and needs a $2,000+ repair, replacement makes more sense. Cracked heat exchanger? Check your warranty first - most are covered for 20 years or lifetime. We'll give you honest advice either way.

Do you charge extra for downtown Chicago service?

We require a $100 deposit for downtown locations (Loop, River North, Streeterville, Gold Coast, etc.). The deposit is waived if you provide parking. This covers our time finding parking and dealing with meters.

What's wrong if my furnace is blowing cold air?

Cold air from vents usually means the flame sensor is dirty (easy fix), the igniter failed (common repair), or you have a thermostat set to 'fan on' instead of 'auto'. We troubleshoot the root cause, not just throw parts at it.

Need Furnace Repair? Call Now.

No sales pitch. No commission upsells. Just honest diagnosis and fair pricing from a Chicago company that's been fixing furnaces since 2008.