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Free HVAC Cost Estimate · Denver Metro
HVAC Cost Calculator for Denver Metro Homes
Get a real cost range for any HVAC repair or replacement in seconds — built from our actual Denver-metro pricing, not national averages. See your estimate instantly, no email required, and never get pushed toward a system you don’t need.
Denver HVAC Cost EstimatorReal local pricing · not national averages
Step 1
Which system do you need help with?
Pick the part of your HVAC system that's giving you trouble.
CoolingAC / air conditioning
HeatingFurnace / heat pump
BothFull system
Repair or replace?
Not certain? Pick "I'm not sure" and we'll size up the smarter move for you.
What are you putting in?
Choose the equipment you're replacing or installing.
How big is your home?
Square footage drives equipment size (roughly 1 ton per 400–600 sq ft in Colorado).
Are we replacing the indoor coil too?
2026 A2L systems can't reuse an old R-410A coil, so a matched coil is usually required. "Not sure" is fine — we confirm on-site.
Which efficiency tier?
AFUE is how much of every gas dollar becomes heat. Higher AFUE costs more upfront but lowers winter bills.
Which heat pump setup?
For Denver's single-digit lows, a cold-climate unit runs efficiently without falling back on backup heat strips.
How many zones?
Each indoor head is a zone — one per room or area you want to control.
What shape is your ductwork in?
A new unit on leaky ducts underperforms. Sealing or modification adds $500–$1,500 when it's needed.
How old is the system you're replacing?
Helps us confirm replacement is the right call versus a repair.
What's going on with the system?
Pick the closest category. Not sure? Choose the last option.
Which part, if you know it?
Best guess is fine — your final price is confirmed on a diagnosis.
How old is the system?
We use this with the repair cost to tell you if a fix is still the smart play.
When do you need it handled?
After-hours and emergency calls add $75–$150. A daytime appointment keeps costs down.
Your Estimated Range
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Every 360 HVAC Pro estimate is itemized before any work starts — equipment, labor, and what's included. No surprises.
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Estimates reflect typical Denver-metro pricing and are not a final quote — your exact price is confirmed on an in-person diagnosis.
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Denver HVAC Pricing
What Determines Your HVAC Estimate?
No two homes are identical, and neither are their HVAC costs. Here’s what actually drives your number in the Denver metro.
A straight AC swap is the simplest, least expensive job. A heat pump costs more upfront because it replaces both your AC and furnace. A full furnace-and-AC combo is the biggest investment — but bundling cuts significant labor.
Equipment is sized in tons — roughly 1 ton per 400–600 sq ft in Colorado. Your ductwork matters just as much: a new unit on a leaky duct system can perform worse than the one it replaced. Duct work adds $300–$1,500 when needed.
A builder-grade 14 SEER2 unit and a 20 SEER2 variable-speed system are not the same job. The high-efficiency unit costs $2,000–$3,000 more but can cut summer cooling bills 30–40% — paying for itself in under two years on heavy-use homes.
At 5,280 feet the air is thinner, so your system works harder and is often sized slightly larger. Any contractor quoting from sea-level sizing tables without an altitude adjustment is setting you up for an undersized system.
Systems under 5 years almost always warrant repair. At 10–15 years it’s an honest judgment call. Over 15 years, planned replacement usually beats an emergency breakdown during peak Denver-winter demand.
Denver requires permits for equipment replacement — $150–$300, and not optional. The fee triggers a code inspection that protects you. Any contractor offering to skip permits is cutting a corner that bites at resale or insurance time.
Installed Pricing
HVAC Replacement Cost by System Type
We're one of the few Denver-metro HVAC companies that puts real pricing ranges on our website. If a quote you get from anyone — including us — looks wildly different, ask why.
Central AC Replacement
1,000 – 1,200 sq ft$3,200 – $5,000
1,200 – 1,800 sq ft$3,800 – $6,200
1,800 – 2,400 sq ft$4,500 – $7,500
2,400 – 3,000 sq ft$5,500 – $8,500
3,000+ sq ft$7,000 – $12,000+
Assumes ductwork is in good shape. Add $500–$1,500 if ducts need sealing or modification.
Gas Furnace Replacement
80% AFUE standard efficiency$2,200 – $4,000
96% AFUE high efficiency$3,200 – $5,500
Two-stage / variable-speed$4,000 – $6,500
At 96% AFUE, 96¢ of every gas dollar becomes heat — saving roughly $192 a year on a $1,200 heating bill. Typically pays for itself in 5–7 years.
Heat Pump Installation
Single-zone 1,000–1,800 sq ft$4,500 – $7,500
Whole-home with air handler$6,000 – $11,000
Cold-climate rated to −13°F · best for Denver$7,000 – $13,000
Cold-climate matters here — standard heat pumps lose efficiency below 20°F. A −13°F-rated unit runs through the worst of winter without backup heat strips.
Ductless Mini-Split
Single-zone one room or area$2,000 – $5,000
Two-zone$4,000 – $8,000
Three-zone$6,000 – $11,000
Four-zone$8,000 – $14,000
Ideal for homes without ductwork, additions, garages, or finished basements. The biggest variable is line-set routing complexity.
Full System Replacement (AC + Furnace Together)
Complete AC + furnace replacement, Denver metro$6,000 – $12,500
Average labor savings vs. doing them separately$500 – $1,200
If both units are aging, replacing together almost always makes sense — one crew, one permit, and the system is commissioned as a matched pair from day one.
Repair Pricing
HVAC Repair Cost for Specific Problems
Here’s what Denver-metro homeowners actually pay for the most common HVAC repairs, grouped by component. Emergency or after-hours calls typically add $75–$150.
Capacitor (start or run)
$150 – $300
Contactor
$100 – $250
Ignitor
$100 – $250
Flame sensor
$75 – $200
Thermostat
installed
installed
$100 – $350
Circuit / control board
$300 – $700
Zone damper
per zone
per zone
$200 – $500
R-410A recharge
$200 – $400
R-22 recharge
older systems
older systems
$600 – $1,500
Leak detection & repair
$200 – $1,000
Metering device / TXV
$200 – $600
R-22 is no longer manufactured in the US. On an older R-22 system, a repair needing 5–10 lbs of refrigerant can cost as much as a new system — worth a replacement quote first.
Blower motor
$400 – $750
Draft inducer motor
$300 – $600
Reversing valve
heat pump
heat pump
$400 – $900
Evaporator coil
$800 – $1,800
Condenser coil
$900 – $2,500
Compressor
$1,300 – $2,800
Heat exchanger
cracked — replace, don't repair (CO risk)
cracked — replace, don't repair (CO risk)
$500 – $2,000
Ductwork repair
per section
per section
$150 – $500
Duct sealing
whole home
whole home
$400 – $1,200
One thing to know: emergency or after-hours service calls add $75–$150 on top of the repair cost above. Plan a daytime appointment when you can.
Have a question, ask us anything about your system. You'll get a straight answer from a real technician, never a sales pitch.
Contact UsMake the Right Call
Is It Cheaper to Repair or Replace?
The most common mistake is sinking money into a system that should be replaced. The second is replacing one with years of life left. Here’s the simple test we use.
The $5,000 Rule
Multiply the age of your unit (in years) by the estimated repair cost. Over $5,000 → replacement is almost always the better move. Under $5,000 → repair typically wins.
8-yr AC × $300 capacitor
= $2,400
Repair it
Common wear part on a healthy system
13-yr AC × $900 coil
= $11,700
Replace it
Big part, system near end of life
10-yr furnace × $400 board
= $4,000
Borderline
Get a replacement quote before deciding
When repair always makes sense
- System under 8 years old and under manufacturer warranty.
- The failed part is a common wear item — a capacitor, contactor, or ignitor.
- Like replacing a tire on a car with plenty of life left.
When replacement always makes sense
- Compressor failure on a system over 10 years old.
- Cracked heat exchanger on any furnace — also a carbon-monoxide risk most companies won't repair.
- R-22 system needing a coil — R-22 runs $50–$80/lb when available; the repair can cost as much as a new system.
By Home Age
Does Home Age Change My HVAC Cost?
Older Denver homes — especially those built before 1985 — come with ductwork that’s often undersized, deteriorated, or routed for original system capacities.
- Before 1980: Plan for $500–$2,000 in duct work on top of equipment. Some have 80s-era wiring that won't support modern variable-speed gear without an electrical upgrade.
- 1980–2000: Usually better ductwork, but often original equipment past its useful life. Have the tech inspect duct connections at the plenum.
- 2000–2015: Generally good ductwork; mostly still R-410A compatible.
- After 2015: Newer R-454B / R-32 refrigerants are phasing in — make sure replacement equipment is compatible.
Colorado Climate
Does Denver's Climate Affect Costs?
More than most homeowners realize. 300 days of sun cause UV wear on outdoor equipment, elevation drives compressor wear, and summer 95°F+ highs swing to single-digit winter lows.
- Outdoor condensers should be cleaned every spring — cottonwood, dirt, and hail clog fins fast on the Front Range.
- Furnaces work harder here. A unit running flat-out on a −10°F January night is under real stress — exactly when neglected systems fail.
- Refrigerant pressures read differently at altitude — a tech using sea-level numbers can misdiagnose your charge.
Frequently Asked Questions
HVAC Repair & Replacement Cost
Straight answers to what Denver-area homeowners ask us most before joining.
How much does HVAC repair cost in Denver?
Most HVAC repairs in the Denver metro fall between $150 and $650 depending on the part and the system. A capacitor runs $150–$300, a refrigerant recharge $200–$500, an ignitor $100–$250, and a blower motor $400–$750 installed. Emergency or after-hours calls typically add $75–$150.
How much does HVAC replacement cost in Denver?
A central AC replacement runs about $3,200–$12,000 depending on home size, a high-efficiency gas furnace $3,200–$5,500, a heat pump $4,500–$13,000, and a full AC-plus-furnace system $6,000–$12,500. Replacing both units together saves $500–$1,200 in labor.
Is it cheaper to repair or replace my HVAC system?
Multiply the age of your unit by the repair cost. If the result is over $5,000, replacement is usually the better move; under $5,000, repair typically wins. A cracked heat exchanger, a failed compressor on an older system, or an R-22 system needing a coil almost always favor replacement.
How does Denver's altitude affect HVAC costs?
At 5,280 feet the air is thinner, so equipment works harder and is often sized slightly larger. Refrigerant pressures also read differently at altitude, so a sea-level diagnosis can be wrong. Any contractor sizing from sea-level tables without an altitude adjustment risks an undersized system.
How much does furnace replacement cost in Denver?
A standard 80% AFUE furnace runs $2,200–$4,000 installed, a high-efficiency 96% AFUE furnace $3,200–$5,500, and a two-stage or variable-speed furnace $4,000–$6,500. Denver winters make a properly sized, efficient furnace especially worthwhile.
How much does a mini-split cost in Denver?
Ductless mini-splits run $2,000–$5,000 for a single zone, $4,000–$8,000 for two zones, $6,000–$11,000 for three zones, and $8,000–$14,000 for four zones installed. The biggest variable is how complex the line-set routing is.
Get an Honest Quote
Talk to a real local team — not a call center. Honest, upfront pricing, no pressure, and a straight answer every time. Proudly serving Commerce City and the Denver metro.