Furnace repair cost in Commerce City typically runs $75 to $750 depending on which part failed. For example, a flame sensor cleaning runs $75 to $200, while a blower motor replacement runs $400 to $750. Meanwhile, emergency after-hours calls typically add $75 to $150.
Most homeowners want a straight answer on furnace repair cost in Commerce City before they pick up the phone. In short, most repairs land between $75 and $750, and only a handful of failures push above $2,000. Below, this guide walks through every common repair, what drives the price up or down, and how you can get a real estimate before we ever knock on your door.
At 360 HVAC Pro, we run same-day furnace repair across Commerce City and the greater Denver metro. First, we diagnose the problem, then we show you the failed part and give you an upfront price you approve before we start. Our technicians work without commission quotas. Additionally, our diagnostic fee is fair, and we credit it toward your repair when you move forward. In the end, we only recommend replacement when the numbers actually justify it.
What Does Furnace Repair Cost in Commerce City in 2026?
Furnace repair cost in Commerce City ranges from about $75 for a quick flame sensor cleaning up to $2,000 for a major part replacement. However, most homeowners land somewhere in the middle. In practice, the real cost depends on which part failed, how old the furnace is, and whether the call is standard hours or after-hours.
Below is our honest 2026 pricing for the most common furnace repairs. Because these are installed prices, parts and labor are included.
- Flame sensor cleaning or replacement: $75 to $200. A common no-heat fix.
- Hot-surface ignitor: $100 to $250. The single most common furnace failure.
- Capacitor (start or run): $150 to $300.
- Thermostat, installed: $100 to $350.
- Circuit or control board: $300 to $700.
- Draft inducer motor: $300 to $600.
- Blower motor: $400 to $750.
- Heat exchanger replacement: $500 to $2,000. Because a cracked heat exchanger creates a carbon monoxide risk, we replace, never patch.
- Emergency or after-hours add-on: plus $75 to $150.
As a result, you see the exact price before we start work. That is the entire point of an honest diagnostic that we credit toward your repair. Consequently, you never guess what a job will cost, and you never pay twice for the same visit.
What Is the Most Common Furnace Repair?
The most common furnace repair in Commerce City is a hot-surface ignitor replacement, followed closely by a flame sensor cleaning. Together, these two failures account for a big share of the “no heat” calls we run every winter.
A hot-surface ignitor is a small ceramic element that heats up and lights the gas. Typically, these crack from thermal cycling every three to seven years. When the ignitor cracks, the furnace clicks but nothing lights. In most cases, replacement runs $100 to $250 including the part and the labor.
Meanwhile, a flame sensor is a small metal rod that tells the furnace whether the burner actually lit. Over time, carbon builds up on the sensor and it stops picking up the flame. As a result, the furnace lights, runs for a few seconds, then shuts down. Fortunately, a tech cleans it in five minutes and the furnace runs again. Most flame sensor calls end at $75 to $200.
Here is the important part: neither of these repairs is a reason to replace a furnace. However, a big company that gets paid to sell new equipment might tell you otherwise. We do not. If the problem is a $150 flame sensor cleaning, we clean it and go home. That is how a fair furnace repair actually works.
What Actually Drives the Cost of a Furnace Repair?
Four things move the price of a furnace repair up or down in Commerce City.
The failed part. This is the biggest factor by far. For example, a flame sensor is a $75 fix, while a heat exchanger runs $500 to $2,000. Because the parts on a modern furnace vary in cost by more than 20 times, the price you pay tracks directly to what actually broke.
Your furnace’s age. Older furnaces (15 years and up) sometimes use parts that are harder to source. For instance, a control board for a discontinued model can cost more and take longer to arrive. On the other hand, newer furnaces usually have current, easy-to-find parts.
The time of year. Furnace repair costs run higher in the winter for a real reason. Specifically, demand spikes when a cold snap hits Denver, technicians work extended hours, and after-hours calls trigger add-on charges. For example, the same repair that runs $250 on a Tuesday in October might run $400 at 11 p.m. on a Friday in January. Fortunately, we publish our after-hours add-on ($75 to $150) upfront, so you always know what the emergency premium looks like before you approve the work.
Commerce City’s altitude. This is the factor most homeowners never hear about. Because Commerce City sits at roughly 5,150 feet, thinner air changes how gas furnaces burn. In short, a furnace that runs fine at sea level needs a combustion adjustment at altitude. Unfortunately, techs who skip the altitude adjustment leave the system running rough, which shortens part life and drives repeat repair costs. Our local techs, on the other hand, calibrate every furnace for Commerce City conditions on the first visit. For more on how these factors shape the total bill, see our Commerce City HVAC hourly rate guide.
What’s the Cost of an Emergency or After-Hours Furnace Repair?
Emergency furnace repair in Commerce City typically adds $75 to $150 to a standard repair price. In most cases, contractors charge this add-on for nights, weekends, and holidays.
However, this is where 360 HVAC Pro stands apart. We run same-day furnace repair on most calls during regular business hours across Commerce City and the Denver metro. Specifically, if you call by early afternoon, we can often get to you the same day at standard pricing. As a result, you skip the after-hours premium and get heat back before bedtime.
When you truly need after-hours help, we run 24/7 emergency service across Commerce City and the metro. Furnace dies at midnight with a newborn in the house? We answer, and we tell you the pricing upfront before we drive out. In the end, nothing about the bill is a surprise.
Is It Worth Repairing an Old Furnace?
Yes, if the math works. In general, a furnace under about 15 years old with a fixable part is almost always worth repairing.
Here is the honest rule most local contractors use, and the one we walk through with you at your home:
Multiply your furnace’s age by the repair cost. If the answer is over $5,000, lean replace. Under $5,000, repair is the smart call.
For example, here are a few real scenarios:
- Eight-year-old furnace with a $400 control board = $3,200. Repair.
- Twelve-year-old furnace with a $250 ignitor = $3,000. Repair.
- Twenty-year-old furnace with a $1,200 inducer motor = $24,000. Replace.
- Fifteen-year-old furnace with a $600 blower motor = $9,000. Look hard at replace.
However, two other factors override the math. First, a cracked heat exchanger is always a replacement conversation because of the carbon monoxide risk. Second, a furnace that has needed multiple repairs in the past two winters is usually near the end of its useful life, even if today’s repair passes the $5,000 check.
If you land in replacement territory, we install too. Our Commerce City furnace installation team gives you the same upfront pricing as our repair team. In addition, Colorado still runs heat pump rebates and tax credits that can lower a full-system replacement by thousands. Ask us to run the numbers side by side, and we will show you which path saves you more money over the next ten years.
Does Homeowners Insurance Cover Furnace Repair?
Homeowners insurance usually does not cover a routine furnace repair. Typically, most standard policies exclude wear and tear, age, and lack of maintenance. As a result, a failed ignitor or a worn-out blower motor is on you.
However, insurance often covers the furnace when a specific event caused the damage. For example:
- A power surge fries the control board.
- Water from a burst pipe floods the basement and damages the furnace.
- Fire damage takes out the furnace.
- Storm damage crushes the exhaust vent.
If you think your damage might qualify, call your insurance company before you approve the repair. Specifically, ask them what the deductible is and whether they need a written diagnosis from the HVAC contractor. Fortunately, a clear description of what failed and why is exactly what our honest diagnostic gives you, specific enough to hand to your adjuster.
On the other hand, home warranties work differently from homeowners insurance. Some warranties cover furnace repairs after a deductible, usually $75 to $150 per claim. However, read the fine print, because most warranties cap the annual payout.
How to Keep Your Furnace Repair Cost Down
Three habits keep furnace repair costs low across the life of the system.
Change your air filter every one to three months. A dirty filter restricts airflow, overheats the blower motor, and shortens the life of every other part. In practice, a $15 filter can prevent a $500 blower motor repair. Set a calendar reminder if you tend to forget.
Get an annual tune-up in the fall. A yearly tune-up catches the small problems (a weak flame sensor, a slow ignitor, a loose wire) before they turn into no-heat calls in January. Additionally, it protects your manufacturer warranty and keeps the system running at rated efficiency, which the ENERGY STAR furnace guide ↗ confirms as a core recommendation for holding down operating costs. Meanwhile, our maintenance plan covers the fall tune-up plus priority scheduling in the winter rush.
Do not ignore the early warnings. A short-cycling furnace, banging sounds on startup, or a yellow burner flame all tell you something is wrong. For example, a $150 flame sensor call today beats a $700 control board call in six weeks after the sensor damage cascades.
Get Your Estimated Furnace Repair Cost Before We Arrive
You should never have to guess what a furnace repair will cost. Fortunately, our free online HVAC cost calculator gives you a real estimated price in about two minutes. Specifically, the calculator asks a few questions about your furnace and the symptoms, and it returns an honest ballpark range for the likely repair. In addition, it runs anonymously, so a salesperson never follows up.
When we arrive on the same day, we run the actual diagnostic, show you the failed part, and give you an exact price. Then you approve before we start. In short, that is the entire promise: an honest diagnostic, an upfront price, and a fix-first team that respects your time and your budget.
If your furnace is acting up right now in Commerce City or anywhere in the Denver metro, call or text (720) 925-2051 or reach out through our contact page. A real Commerce City person answers, and we can often get to you the same day.
