Colorado Springs, CO · Heating
Furnace Replacement Cost in Colorado Springs
A furnace replacement is the largest single heating expense a Colorado Springs homeowner faces, and the quotes can differ by thousands of dollars for what sounds like the same job. This page sets out the local price ranges, what actually moves them, and how to tell whether you need a new furnace at all.
The furnace replacement cost most Colorado Springs homeowners pay is $4,200 to $6,500 for a mid-efficiency gas furnace, installed. High-efficiency models run $8,000 and up. One local firm cites $4,600 to $12,000 across all replacement jobs, which shows how much home size, ductwork, and efficiency choice move the final number.
- Itemized written quotes
- Altitude sizing included
- Permits pulled
- No now or never pricing
The headline numbers
Mid-efficiency gas furnace, installed: $4,200 to $6,500
High-efficiency, 96% AFUE and up: $8,000 and up
Local cited range, all jobs: $4,600 to $12,000
Blower motor repair, for comparison: $400 to $900
All figures are sourced local ranges, not quotes. Your price belongs in a written, itemized quote after a load calculation at your home.
Price table
Furnace prices by efficiency tier
The gas furnace replacement cost in Colorado Springs depends first on efficiency tier. Standard 80 percent AFUE models are the cheapest to buy. Mid-efficiency models cost more upfront and less to run. High-efficiency condensing furnaces at 96 percent AFUE and above carry the highest installed price and the lowest fuel bills.
| Efficiency tier | Installed cost |
|---|---|
| Standard efficiency, 80% AFUE | $4,200 to $5,500 |
| Mid-efficiency | $4,800 to $6,500 |
| High-efficiency, 96%+ AFUE | $8,000 to $12,000 |
Installed prices including standard fitting, connection to existing ductwork in sound condition, and removal of the old furnace. Final price confirmed in a written, itemized quote. Ductwork repairs, if your home needs them, are quoted as their own line.
The tiers overlap, and that overlap confuses people. A large mid-efficiency furnace in a big Powers corridor home can cost more than a small high-efficiency unit in a compact Old Colorado City house. AFUE, the annual fuel utilization efficiency rating, only tells you what share of the gas becomes heat inside the home. It does not tell you the size of the furnace, the state of the ductwork, or how much labor the install needs. When you compare quotes, compare within a tier first, then decide whether stepping up a tier is worth it for your home and how long you plan to stay in it.
Price drivers
What changes the price of a new furnace
Four factors explain most of the spread between furnace quotes in Colorado Springs: the size of your home and its heat load, altitude derating at 6,000 feet, the condition of your ductwork, and the permits and code rules that apply to the job. Quotes that skip any of these are not comparing like with like.
Home size and BTU load
Bigger homes need bigger furnaces, and bigger furnaces cost more. The honest way to size one is a load calculation, often called a Manual J, that works from your square footage, insulation, windows, and layout. A quote produced without any load calculation is a guess, and a guessed size at altitude is how homes end up with furnaces that short cycle or never quite catch up on the coldest nights.
Altitude derating and the high-altitude kit
The National Fuel Gas Code requires gas appliance input to be derated by 4 percent for every 1,000 feet above 2,000 feet. At Colorado Springs elevation, that is roughly a 16 to 24 percent reduction, done with a high-altitude kit of orifices and a pressure switch. Skipping it causes incomplete combustion, sooting, nuisance lockouts, and elevated carbon monoxide. Any local quote should include the kit and the adjustment as a matter of course.
Ductwork condition
A new furnace pushing air through leaky, crushed, or undersized ducts will not deliver the comfort you paid for. Older homes in the 1960s to 1990s suburbs often need sealing, a corrected return, or short runs replaced. Good companies quote ductwork as a separate, explained line. Companies that ignore the ducts entirely are quoting a smaller job, not a cheaper version of the same one.
Ultra-low NOx rules and permits
Colorado's ultra-low NOx furnace rules are pushing replacement equipment toward cleaner models, and industry reporting estimates the change adds $1,000 to $2,000 to a Colorado furnace replacement. Treat that figure as an estimate to confirm inside your quotes, not a fixed surcharge. Permits and inspection add a smaller amount, and they are not optional extras: a permitted install is your proof the work was checked.
Put together, these factors explain why the cost to replace furnace equipment alone can look very different from a full installed quote for the same home. The equipment is one line. The sizing work, the altitude kit, the ductwork, the permit, and the labor are the rest of the job, and they are exactly the lines a too cheap quote tends to leave out.
The decision
Repair or replace: the $5,000 rule and the warning signs
Use the $5,000 rule first: multiply your furnace age by the repair quote, and replace when the result passes $5,000. Then check the warning signs below. Any one of them can be a repair. Two or three together, on a furnace over 15 years old, usually mean the money is better spent on a replacement.
An example: a 16 year old furnace with a $600 control board quote scores 9,600, well past the line, so replacement deserves a serious look before you pay for the board. The same repair on a 9 year old furnace scores 5,400, close to the line, where the warning signs below should make the call. Set beside the furnace replacement cost ranges in the table above, the rule stops a steady drip of repair bills from quietly adding up to a new furnace you never got. If the fault is on the repair side of the line, the furnace repair page covers what common repairs involve.
- Rising heating bills. Your usage has not changed, but the gas bill climbs winter over winter as the furnace works harder to make the same heat.
- Uneven heat. Some rooms roast while others stay cold, a sign the furnace and blower can no longer move air the way the house needs.
- Frequent repairs. Two or more repair visits in the last couple of winters, especially for different parts each time, means the system is wearing out as a whole.
- Age of 15 years or more. Past this point every major repair buys less remaining life, and parts get harder to source.
- Cracked heat exchanger. This is a carbon monoxide safety issue, not a judgment call. Ask for the CO reading and inspection photos of your own furnace in writing, then plan the replacement.
How to find your furnace manufacturing date
Every repair or replace decision starts with the age of the unit, and the furnace itself tells you. Open the front cabinet door and look for the data plate, a metal or printed label usually mounted inside the cabinet or near the burner compartment. The plate lists the model and serial number. On many brands the serial number encodes the date: the first digits commonly give the year and week of manufacture. If the plate is unreadable, a technician can date the unit from the model number during a visit, and your home purchase inspection report often lists the age as well.
The in-between fix
When a blower motor buys you time, and when it does not
Furnace blower motor replacement cost
A blower motor replacement runs $400 to $900 installed in Colorado Springs, which makes it the classic in-between repair: far more than an igniter or a sensor, far less than a new furnace. On a furnace under 12 years old with a sound heat exchanger, a new motor usually buys several more heating seasons.
The blower motor moves all the heated air through your ducts, and at 6,000 feet it works against thinner air, so a tired motor shows up early here: weak airflow, rooms that lag, and a furnace that runs longer to do less. Replacing the motor makes sense when the rest of the furnace is healthy, the heat exchanger tests clean, and the failure is the motor itself. It does not buy real time when the heat exchanger is cracked, when this is the third major repair in two winters, or when the motor died from a root cause nobody fixed, such as choked ductwork driving static pressure too high. In that case the new motor inherits the same strain and the same early failure. Ask what killed the old motor before you pay for the new one.
Combined systems
Replacing the furnace and AC together
The cost to replace air conditioning unit and furnace in one project is usually less than the two jobs done separately, because the crew, the duct connections, and the setup happen once. Expect combined quotes roughly in the $10,000 to $16,000 range for standard equipment in Colorado Springs, depending on efficiency and ductwork.
A combined replacement also gets you a matched system: a furnace blower and a cooling coil chosen to work together, sized from one load calculation, with altitude taken into account on both sides. That matters here, where the same ductwork serves a long heating season and a short, sharp cooling season. One install visit also means one round of disruption, one permit process, and one set of paperwork. The case against combining is just as real: if your AC is young and healthy, replacing it early throws away years of service you have already paid for. The honest test is the age and condition of each unit on its own. When both are past 15 years, or one has already failed, combined pricing usually wins. When you are ready to book the work, our furnace installation page walks through install day, permits, and the quality checks a finished job should pass. Some homes also ask about switching to a heat pump or dual fuel at this point instead of another gas furnace; how those systems behave at our altitude is covered on the heat pump repair page. The home AC repair prices page shows what keeping the cooling side alive costs in the meantime. If both systems are staying for now, the work that keeps them running sits under heating and cooling repairs across Colorado Springs.
Timing
The best time to replace a furnace
The cheapest time to replace a furnace in Colorado Springs is before it fails: spring and early fall, when heating crews are less booked and you can compare quotes without a cold house forcing the decision. A planned replacement also lets you size for altitude properly instead of taking whatever is on the truck.
Local weather sets the trap. The first fall freeze lands around October 1 to 2, and furnaces that sat idle all summer tend to fail on their first hard firing, which is why no heat calls bunch up in October and again in the coldest January stretches. A furnace replaced in a shoulder season is a decision you made; a furnace replaced on a 10 degree night is a decision the weather made for you, usually at the highest price and with the fewest choices. If your furnace is over 15 years old and showed any of the warning signs last winter, get quotes in September rather than waiting for the first cold snap to grade your homework. A furnace with documented maintenance behind it rarely forces the timing at all: the service record shows the decline coming.
Quote check
Compare quotes like-for-like
Two furnace quotes only compete when they describe the same job. Before you compare totals, line the quotes up side by side: same efficiency tier, same furnace size from a load calculation, and the same scope, with the high-altitude kit, permits, ductwork work and disposal each shown as their own itemised line.
Scope is where quotes hide their tricks. A story doing the rounds in homeowner forums describes a $54,000 replacement quote that looked absurd until heating pros unpacked it: the number bundled two dual fuel systems, a mini-split and zoned ductwork. Three to five jobs were wearing one price tag. Nothing in it was fake. It just was not one furnace, and it could not be compared with a single-system quote until it was broken into lines.
Do the same with every quote you collect. If one total still sits far above the rest once the scopes match, that is the moment a second opinion earns its keep: hand the second company the first quote and ask them to price the identical job, line by line. A firm that welcomes the comparison is telling you something about the quote it gave you.
Common questions
Furnace replacement questions, answered
How much does it cost to replace a furnace in Colorado Springs?
The furnace replacement cost in Colorado Springs is $4,200 to $6,500 for most mid-efficiency gas furnaces, installed. High-efficiency models run $8,000 and up, and one local firm cites $4,600 to $12,000 across all replacement jobs. Your home size, ductwork condition, and efficiency choice explain most of the spread, so compare itemized written quotes for the same tier before you judge any single number.
How long does a furnace last in Colorado?
A gas furnace typically lasts 15 to 20 years in Colorado when it is sized and adjusted correctly. Altitude matters here: a furnace installed at 6,000 feet without the high-altitude adjustment runs hot, soots, and locks out more often, and that abuse can shorten its life. Documented yearly maintenance, a clean filter habit, and correct derating are the difference between a furnace that retires at 18 years and one that struggles at 12.
What are the signs I should replace my furnace?
The clearest signs are heating bills rising while your usage stays the same, rooms that no longer heat evenly, and repairs that keep coming back, two or more in a couple of winters. Age over 15 years strengthens the case. A cracked heat exchanger settles it: that is a carbon monoxide safety problem, not a repair decision, and the furnace should be replaced. Ask for the CO reading in writing.
Is a high-efficiency furnace worth it at altitude?
Often, yes. Colorado Springs is a heating dominant city with a furnace season running roughly late September to late April, so the furnace does far more work than the air conditioner. A 96 percent AFUE furnace turns more of every gas dollar into heat across all those hours. Altitude derating still applies to high-efficiency models, so the sizing and the high-altitude kit matter as much as the efficiency badge.
Can I replace just the furnace and keep my AC?
Yes, and it is common. The furnace and the air conditioner are separate appliances that share a blower and ductwork, so a new furnace can usually be matched to a healthy existing AC. The check that matters is compatibility: the new blower has to move the right amount of air for your cooling coil, especially at altitude. If the AC is also past 15 years, price the combined job before deciding.
Is a variable-speed furnace worth paying more for?
It depends what you are buying it for. Variable speed usually describes the blower, and on modulating models the gas valve as well, so the furnace can run low and steady instead of blasting on and off. In a heating dominant city like Colorado Springs, that means quieter running, smaller temperature swings, and fewer cold corners across a long season. What it does not do is pay for itself quickly in gas savings. If the premium is around $2,000, judge it as a comfort upgrade: worth it if you are staying in the home, hard to justify on payback alone. Make sure the quote separates two-stage from true modulating equipment, because the two are often sold as if they were the same thing.
Why do furnace replacement quotes vary so much?
Quotes vary because the jobs behind them vary. One company prices a standard 80 percent furnace into existing ductwork, another prices a high-efficiency model with duct repairs, the high-altitude kit, permits, and ultra-low NOx compliant equipment. Labor, warranty terms, and whether a proper load calculation was done differ too. Ask every company for an itemized quote on the same efficiency tier and the differences usually explain themselves.
Ready for a firm furnace replacement cost?
Call for an in-home load calculation and an itemized written quote, with the high-altitude kit, permits, and ductwork shown as their own lines. Compare it against the ranges on this page, take a night to think, and decide without a deadline hanging over you.