HVAC Technician prices in Denver, CO
| Project | Time | Typical cost | Range |
|---|
| Diagnostic service call (no parts) |
45–90 min |
$76 |
$63 – $92 |
| Annual AC or furnace tune-up |
60–90 min |
$141 |
$115 – $169 |
| AC repair (capacitor / contactor / minor part) |
1–3 hours |
$342 |
$280 – $410 |
| Refrigerant recharge (R-410A, residential) |
1–2 hours |
$409 |
$335 – $490 |
| Smart thermostat install |
1 hour |
$304 |
$249 – $364 |
| Gas furnace replacement (80% AFUE, 80k BTU) |
1 day |
$3,131 |
$2,567 – $3,757 |
| Heat pump replacement (3-ton, 16 SEER) |
1–2 days |
$7,159 |
$5,870 – $8,591 |
| Mini-split install (single zone, 12k BTU) |
1 day |
$2,606 |
$2,137 – $3,127 |
| Whole-home duct cleaning |
3–5 hours |
$368 |
$302 – $442 |
Local rate = BLS national mean × 2.4 markup × (CO COL 105.0/100). Materials adjusted by the same factor.
What a hvac technician in Denver actually does
A residential HVAC technician services, repairs, and installs forced-air furnaces, central AC, heat pumps, mini-splits, and ductwork. A diagnostic visit typically includes static-pressure measurement, refrigerant pressure (for cooling systems), temperature differential between supply and return, electrical-component testing (capacitor microfarad, contactor pull-in, transformer voltage), and ignition or burner inspection on heating equipment. Installations require Manual J / Manual D / Manual S calculations to size the equipment correctly — beware any installer who skips these and recommends "the same size you have now."
Questions to ask before you hire in CO
- Are you NATE-certified, and is your company licensed and insured in this state?
- For a replacement: did you run a Manual J load calculation, and can I see it in writing?
- What SEER2/HSPF2 is the equipment you're quoting, and what's the AHRI match number?
- Does the quote include duct sealing, thermostat, condensate pump (if needed), and permit?
- What's the labor warranty, and is the manufacturer warranty registered in my name?
- Will you provide commissioning data (subcooling/superheat, static pressure) at completion?
"Same-size replacement" without a load calc, refrigerant-only quotes that don't address the leak, and any installer who pushes the largest unit without explaining why.
5 licensed hvac technicians in Denver
Carter Heating & Cooling
📍 5523 Washington Ave, Denver, CO 80264
★ 4.9 / 5 · 355 reviews · 11 years in business
✓ Licensed ✓ Insured BBB A+ 11 yrs
Specialties: Refrigerant recharge, Thermostat install, Annual tune-up, Duct cleaning, Furnace install
Denver Comfort Air
📍 9298 Lake Ct, Denver, CO 80290
★ 3.9 / 5 · 280 reviews · 3 years in business
✓ Licensed ✓ Insured BBB A 3 yrs
Specialties: Duct cleaning, Refrigerant recharge, Heat pump replacement, AC repair, Mini-split install
Denver Mechanical
📍 7447 Washington Pl, Denver, CO 80293
★ 4.2 / 5 · 34 reviews · 28 years in business
✓ Licensed ✓ Insured BBB A+ 28 yrs
Specialties: Furnace install, Mini-split install, Annual tune-up, Duct cleaning, Heat pump replacement
Atlantic Mechanical
📍 6270 Washington Blvd, Denver, CO 80264
★ 3.9 / 5 · 195 reviews · 9 years in business
✓ Licensed ✓ Insured 9 yrs
Specialties: Thermostat install, Heat pump replacement, Annual tune-up
Cornerstone Heating & Cooling
📍 9548 River Blvd, Denver, CO 80290
★ 3.8 / 5 · 149 reviews · 6 years in business
✓ Licensed ✓ Insured 24/7 Emergency 6 yrs
Specialties: Refrigerant recharge, Heat pump replacement, Thermostat install
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Seasonal hvac checklist for Denver homeowners
Spring
- Schedule an AC tune-up before May; pros are 30–40% cheaper in shoulder season than during the first July heatwave.
- Replace HVAC filters (every 30–90 days depending on type and pets).
- Hose down the outdoor condenser coil and clear at least 2 feet of vegetation around it.
- Test the AC by setting it to 5°F below indoor temperature; it should kick on within 30 seconds and the supply registers should blow noticeably cool air within 5 minutes.
Fall
- Schedule a furnace or heat-pump tune-up before October.
- Replace HVAC filters again going into heating season.
- Clear leaves from around the outdoor condenser/heat pump and cover the top only (never wrap the sides).
- Test CO detectors near gas-burning appliances; replace batteries.
- Run the furnace for 10 minutes before the first cold snap; address any odd smells, banging, or short-cycling now.
Winter
- Keep furniture and rugs at least 6 inches off supply registers and return-air grilles.
- Inspect attic insulation; less than R-30 is the #1 reason heating bills run high in older homes.
- Defrost outdoor heat-pump coils once every 2–3 weeks during sustained cold.