Home Cost Report

Gas furnace replacement cost in Denver

Gas furnace replacement in Denver costs about $2,900 to $12,600 (typically $6,600) — local prices run about 5% above the national average.

These figures adjust our national gas furnace replacement range to Denver's local cost level — see the method and sources below.

Low
$2,900
Typical
$6,600
High
$12,600

How we localized this

We start from our national gas furnace replacement range of $2,800–$12,000 and adjust it for Denver, where costs run about 5% above the national average. Denver home-improvement costs run modestly above the U.S. average. A cost-index comparison puts Denver renovation pricing about 12% above the national average in its overall framing, while the multiplier it actually applies to individual project estimates is closer to 4% above; other local renovation guides put the metro at 10–20% above. Mortenson's quarterly construction cost index also shows Denver's nonresidential construction costs rising faster than the national pace, consistent with a tight, in-demand contractor market. We land on a conservative 5% above national, nearer the lower end of that range. Materials are priced roughly nationally, so treat this as an approximation — your actual price depends on your home, contractor, and project specifics.

Denver cost sources (2)

A decade of rapid population growth has kept Denver's contractor market tight, and material transport costs into the Rocky Mountain region add a modest premium on top of labor. The Front Range sits in one of the country's top hail-exposure zones, which makes roofing and exterior-siding work a recurring, often insurance-driven expense. Denver's semi-arid, high-altitude climate also affects concrete work — flatwork tends to crack faster than in humid climates without fiber reinforcement and properly placed control joints, so that's worth confirming with a contractor on any driveway, patio, or foundation job. Most Denver homes have full, unfinished basements, which makes basement finishing one of the metro's most common and highest-return projects.

Estimate your Denver gas furnace replacement

Adjust for your furnace and install. The estimate starts from our published range and narrows for your choices.

Adjusts the estimate to local cost levels. Pick a metro or leave on national.

AFUE is the share of fuel turned into heat. Higher = lower bills, higher price.

Estimated cost for your options in Denver
$2,900 – $12,600
Typical: $6,600
Adjusted for Denver — costs there run about 5% above the national average.

How we got this

Starts from our published gas furnace replacement range of $2,800–$12,000, adjusted for:

  • Efficiency (AFUE): Standard (80% AFUE)×1
  • Furnace size: Average (60k–80k BTU · ~1,600–2,000 sq ft)×1
  • Installation: Straight swap (same location)×1
  • Area: Denver×1.05

These figures are planning estimates compiled from public cost data on the dates shown — not quotes, bids, or guarantees. Real prices vary widely with your home, location, materials, permits, and contractor. Always get itemized written quotes from licensed local pros before budgeting or hiring.

What changes the price

  • Efficiency (AFUE) — Raises cost

    96%+ AFUE units cost more and need different venting, but burn less gas.

  • Furnace size (BTU) — Raises cost

    Bigger homes need higher heat output, which raises unit and labor cost.

  • Venting & gas line changes — Raises cost

    Switching efficiency tiers or moving the unit can require new venting or gas work.

  • Brand & warranty — Raises cost

    Premium brands and longer warranties cost more.

  • Rebates & tax credits — Lowers cost

    High-efficiency furnaces may qualify for utility rebates or federal credits.

Get real quotes for your Denver gas furnace replacement

Our ranges are for planning. The only way to know your real price is itemized quotes from licensed local pros — always get at least three before you hire.

Tip: search for licensed, insured Denver gas furnace replacement contractors in your area, check reviews and references, and compare written itemized bids — not just bottom-line numbers.

Gas furnace replacement cost — FAQ

How much does it cost to replace a gas furnace?
Most homeowners pay $4,000–$10,000 installed, within a broader range of about $2,800 to $12,000. A typical 1,600–2,000 sq ft home lands around $4,500–$7,000 for a standard unit. Efficiency (AFUE), size, and installation complexity are the main drivers.
Is a high-efficiency furnace worth the extra cost?
A 96%+ AFUE furnace costs more upfront but burns less gas; the payback depends on your climate and gas prices, and is faster in cold regions. High-efficiency models also need different (sealed) venting, which adds to the install cost.
How much is just the furnace unit?
The furnace itself runs roughly $700–$6,200 depending on size, brand, and efficiency; high-efficiency units alone are about $2,800–$6,200. The rest of the project is labor, venting, and permits.
Should I replace my furnace and AC at the same time?
If both are old, replacing them together is common — you pay one labor mobilization and the components stay matched. If only one has failed and the other is newer, replacing just the failed unit is usually fine.

Cost data compiled June 13, 2026.

Sources (4)

Ranges synthesize several public 2026 cost guides into a low–typical–high band rather than reproducing any single source's table. Metro-level breakdowns are coming as we verify local data.

Compare other locations

See all Denver HVAC costs on the Denver HVAC page.

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