Furnace Replacement Cost in Denver, CO (2026)
Cost breakdown
| Item | Low | High |
|---|---|---|
| Furnace unit | $1,850 | $4,000 |
| Labor & installation | $1,100 | $2,400 |
| Venting & gas line | $450 | $950 |
| Thermostat & materials | $300 | $650 |
Cost by fuel type
| fuel type | Low | High |
|---|---|---|
| Gas furnace | $3,700 | $7,950 |
| Electric furnace | $2,650 | $6,350 |
| Oil furnace | $5,300 | $9,550 |
| High-efficiency (95%+ AFUE) | $5,300 | $10,600 |
Estimate your Furnace Replacement cost
A Furnace Replacement in Denver, CO typically costs between $3,700 and $7,950, with most homeowners paying around $5,850. Costs in Denver run above the national average, driven by local labor rates and permit fees.
Below is a full cost breakdown, a price comparison by fuel type, the factors that move the price in Denver, money-saving tips, and how to hire the right pro. Prices are based on 2025–2026 industry data and updated regularly.
What's included in the cost
- The new furnace unit
- Labor, venting, and gas-line connection
- Removal of the old furnace
- New thermostat and permit
What affects the price
- Fuel type (gas, electric, or oil)
- AFUE efficiency rating
- Furnace size (BTU output)
- Venting and gas-line modifications
How to save on Furnace Replacement in Denver
- Buy in the off-season
- Choose the right AFUE for your climate
- Claim high-efficiency tax credits and rebates
- Bundle with AC replacement to save on labor
Get free quotes for Furnace Replacement
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How to hire the right pro
- Confirm licensing and insurance
- Ask for correct BTU sizing
- Get AFUE and warranty in writing
- Get multiple itemized bids
Frequently asked questions
How much does a Furnace Replacement cost in Denver?
In Denver, CO, a Furnace Replacement typically costs $3,700 to $7,950 (average about $5,850). Your exact price depends on the specifics below.
Cost figures are based on 2025–2026 industry data (HomeGuide, Angi) and adjusted for local labor rates. Actual prices vary by project — get free local quotes for an exact figure.