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How Much Does Furnace Repair Cost in Denver?

Furnace repair in Denver typically costs $75 โ€“ $3,500 depending on the issue. Most common repairs run $150-$700. Emergency service available 24/7 with no overtime fees.

$75โ€“$3,500
Full Range
$150โ€“$700 Typical
Most Common
0% Financing
From $79/month
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Furnace Repair Cost by Problem Type

Here's what common furnace repairs cost in the Denver Metro. All prices include parts and labor:

Repair TypeAverage CostNotes
Diagnostic / service call$75 โ€“ $150Waived with completed repair
Ignitor replacement$150 โ€“ $350Most common furnace repair โ€” quick fix
Flame sensor cleaning/replacement$100 โ€“ $250Causes furnace to cycle on and off
Thermocouple replacement$100 โ€“ $250Older furnaces with standing pilot
Draft inducer motor$300 โ€“ $700Causes pressure switch lockout
Blower motor replacement$300 โ€“ $700Affects airflow through entire home
Control board replacement$400 โ€“ $900The furnace's brain โ€” error code diagnosis
Gas valve replacement$300 โ€“ $800Controls gas flow to burners
Heat exchanger replacement$1,000 โ€“ $3,500Safety issue โ€” usually means new furnace

Furnace Emergency? No Overtime Fees

When your furnace breaks during a Colorado winter, you need help fast. We provide 24/7 emergency furnace repair with no overtime charges โ€” the repair costs the same at 2 AM as it does at 2 PM.

๐Ÿšจ Furnace Emergency?

No heat? Smell gas? CO detector going off?

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Cracked Heat Exchangers in Colorado

Heat exchanger cracks are more common in Colorado than most places. The altitude puts extra stress on combustion equipment, and our long heating season means furnaces run thousands of hours per year. A cracked heat exchanger can leak carbon monoxide into your home โ€” this is the most serious furnace problem we encounter.

We inspect the heat exchanger on every furnace repair call. If we find a crack, we'll explain your options honestly. In most cases, a cracked heat exchanger means it's time for a new furnace rather than a $1,000-$3,500 repair on an aging system.

What's Included

โœ“
Upfront diagnosis
Cost before we start work
โœ“
Same-day service
Including evenings and weekends
โœ“
No overtime fees
Same price 24/7
โœ“
Parts on truck
Common parts for same-visit repair
โœ“
CO safety check
Carbon monoxide test on every call
โœ“
All brands
Carrier, Lennox, Trane, Goodman, etc.

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Frequently Asked Questions

How much does furnace repair cost in Denver?

Most furnace repairs cost $150-$700. Ignitor replacements run $150-$350, blower motors $300-$700, and control boards $400-$900. Heat exchanger replacement ($1,000-$3,500) usually means a new furnace is a better investment.

Is a cracked heat exchanger dangerous?

Yes. A cracked heat exchanger can leak carbon monoxide into your home. If your CO detector goes off, leave the house immediately and call us. We inspect the heat exchanger on every repair call.

Do you charge extra for emergency furnace repair?

No. We don't charge overtime fees. Emergency furnace repair costs the same at 2 AM as 2 PM.

How fast can you repair my furnace?

We offer same-day service including evenings and weekends. Most common repairs are completed in 1-2 hours on the first visit.

My furnace won't turn on โ€” what should I check?

Check your thermostat setting, air filter, and circuit breaker first. If those are fine, it's likely an ignitor, flame sensor, or control board issue that needs professional diagnosis.

๐Ÿ“‹ Related Services
Furnace Repair โ†’ Emergency HVAC โ†’ Furnace Installation โ†’
๐Ÿ“š Helpful Articles
Furnace Not Turning On?Read โ†’ CO Safety & Your FurnaceRead โ†’

Related Pricing Guides

Furnace Installation Cost
$2,500 โ€“ $8,000
AC Repair Cost
$75 โ€“ $2,500
HVAC Replacement Cost
$5,500 โ€“ $16,000

What Our Customers Say

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Got it done same day and had 11 other appointments. Awesome, I would definitely recommend their service!
CO
Cornell
June 2025 ยท Google Review
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The team at On Time Heat & Air were communicative leading into our scheduled appointment. They were very helpful, informative, and thorough checking out the HVAC system.
BP
Brooke Ponce
June 2025 ยท Google Review
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Exceptional Service When I Needed It Most! Called at 9 PM for late-night emergency AC repair and they came through.
LG
L Goins
May 2025 ยท Google Review
Read all 70+ Google reviews โ†’

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