Cost to Install a Gas Furnace

Updated: March 2019

Gas Furnace Installation CalculatorZip Code
Furnaces
Item detailsQtyLow  High
Gas Furnace Cost 
Non-discounted retail pricing for: 96% efficiency gas central furnace. 5 ton 120,000 BTU capacity. Gas and 120V connections at unit. 10 yr limited warranty.		1 furnace$1,095.90$1,278.90
Gas Furnace Labor, Basic 
Basic labor to install gas furnace with favorable site conditions. Install new, single zone gas downdraft furnace with existing ductwork. Install 3/4" gas line (up to 20 ft) with shutoff valve. Install branch 120V circuit to unit. Fabricate openings and support mounting. Connect unit to existing supply and return ducting. Fabricate and install exhaust vent system up to 10 ft. Connect power and gas to unit. Mount and connect thermostat. Power unit and verify proper operation. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup.		1 furnace$1,095.90$1,278.90
Gas Furnace Job Supplies 
Cost of related materials and supplies typically required to install gas furnace including: fittings, fasteners and mounting hardware.		1 furnace$1,095.90$1,278.90
Gas Furnace Equipment Allowance
Job related costs of specialty equipment used for job quality and efficiency, including: Pipe cutting and threading, tubing cutter, brazing kit and pipe wrenches. Daily rental. Consumables extra.		1 furnace$1,095.90$1,278.90
Option: Remove HVAC Unit
Disconnect power, connections and fittings. Disconnect mounting hardware and remove unit from premises. For units up to 200 LBS. Material cost includes dump fee.		1 furnace$1,095.90$1,278.90
Gas Furnace Debris Disposal
Costs to load and haul away old materials, installation waste and associated debris.		1 furnace35.437540.3125
 Unused Minimum Labor
Balance of 2 hr(s) minimum labor charge that can be applied to other tasks.		   
Totals - Cost To Install Gas Furnace   
Average Cost per Furnace  
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For a basic project in zip code 47474 with 1 furnace, the cost to Install a Gas Furnace starts at $2,193 - $2,617 per furnace. Actual costs will depend on job size, conditions, size options.

To estimate costs for your project:

1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.

2. Specify Project Size and Options Enter the number of "items" required for the project.

3. Re-calculate Click the "Update" button.


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Unit Costs: How Pros Price

Unlike sites which blend pricing from dissimilar jobs, Homewyse estimates are based on the Unit Cost method. This method uses job specific detail for superior pricing accuracy and transparency - and has become an industry standard through publications and guidance of leading trade associations, including: PHCCA, the NKBA, the NECA, the AIA, and the ASPE.


Cost to Install a Gas Furnace - Notes and General Information

These estimates are for BASIC work performed in serviceable conditions by qualified trade professionals using MID GRADE materials. Work not mentioned on this page and/or work using master craftsman, premium materials and project supervision will result in HIGHER COSTS! Explore the full range of forced air gas furnace new installation labor options and material prices here.

These estimates are NOT substitutes for written quotes from trade professionals. Homewyse strongly recommends that you contact reputable professionals for accurate assessments of work required and costs for your project - before making any decisions or commitments.

The cost estimate includes:

  • Costs for local material / equipment delivery to and service provider transportation to and from the job site.
  • Costs to prepare the worksite for Gas Furnace Installation, including costs to protect existing structure(s), finishes, materials and components.
  • Labor setup time, mobilization time and minimum hourly charges that are commonly included for small Gas Furnace Installation jobs.

The cost estimate does NOT include:

  • Costs for removing, relocating, repairing, or modifying existing framing, surfacing, HVAC, electrical, and plumbing systems - or bringing those systems into compliance with current building codes.
  • Costs for testing and remediation of hazardous materials (asbestos, lead, etc).
  • General contractor overhead and markup for organizing and supervising the Gas Furnace Installation. Add 13% to 22% to the total cost above if a general contractor will supervise this project.
  • Sales tax on materials and supplies.
  • Permit or inspection fees (or portion thereof) required by your local building department for your overall project.

Cost to Install a Gas Furnace - Unit Price References

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