Curbsend
Free tool for hvac contractors

HVAC Replacement Cost Calculator

Enter the home's square footage, climate and system type. The calculator suggests a tonnage, then prices the equipment, line set, pad, thermostat, permit and install hours.

Job details

Your pricing
Estimate
before sales tax
$9,230.50
Estimated size: 3.5 tons
Labor
Remove old system, set and connect new 3.5-ton system, start up and test25 hr × $65.00$1,625.00
Install and set up thermostat0.5 hr × $65.00$32.50
Materials
3.5-ton AC condenser and evaporator coil1 system × $4,830.00$4,830.00
Gas furnace1 ea × $1,740.00$1,740.00
Line set, pad, disconnect and electrical whip1 lot × $456.00$456.00
Smart thermostat1 ea × $228.00$228.00
Disposal
Haul away old equipment, recover refrigerant1 lot × $144.00$144.00
Permits
Mechanical permit1 ea × $175.00$175.00
Total before tax$9,230.50
  • Sizing is a rule of thumb. Run a Manual J load calculation before ordering equipment.

Labor at $65/hr, 20% markup on materials, equipment and disposal. Material prices and crew speeds are starting values; set your own in the app.

Send this as a quote from the driveway

In Curbsend, this calculator runs with your own prices and speeds, turns the result into an itemized quote with good, better and best options, and texts it to the customer to approve and pay a deposit from their phone.

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Pricing tips for hvac

  • A square-footage size is a starting point. Run a load calculation before final pricing on anything unusual.
  • Good, better, best works well in HVAC: efficiency levels and warranty length are easy for customers to compare.
  • Put the permit on its own line. It's a pass-through and customers trust a quote that shows it.

Starting values this calculator uses

Material costs and crew speeds vary by market and by crew. These are the defaults; in the app you replace them with your own, and every estimate uses your numbers.

  • AC condenser and coil$1,150/ton
  • Heat pump and air handler$1,500/ton
  • Gas furnace$1,450
  • High-efficiency premium30 %
  • Install hours (base)14 hr
  • Install hours per ton2 hr
  • Line set, pad, disconnect, whip$380
  • Smart thermostat$190
  • Duct modification materials$600
  • Duct modification hours8 hr
  • Old equipment and refrigerant recovery$120
  • Permit fee$175

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