How Much Does Furnace and AC Replacement Cost in Denver, CO? [2026 Data]

Furnace and AC replacement costs in Denver are 6% higher than the national average, meaning the average Denver homeowner spends $7,935 to replace the HVAC system.  Prices can run from $5,290 to $13,225, depending on factors like system type and size. 

Denver’s higher altitude and extreme temperatures means homeowners should budget for higher-efficiency HVAC systems. Let’s review how to budget for the cost of replacing a furnace and AC in your Denver, CO home.

Furnace and AC Replacement Cost Factors 

Several factors influence furnace and AC replacement costs in Denver, CO, including system type and size. Consult your local HVAC technician to get an accurate estimate based on your project’s specific details.

Type of HVAC System

There are four types of HVAC systems, including split systems, duct-free systems, hybrid systems, and packaged heating and air systems. The typical cost ranges for each are:

• Split systems: $4,025–$7,925

• Duct-free systems: $2,125–$15,300

• Hybrid systems: $2,650–$10,600

• Packaged heating and air systems: $10,600–$14,800

Unit Size

The square footage of your house will determine what size furnace and air conditioner you need to heat or cool your space efficiently. A local HVAC company can help you determine what size you need exactly by doing a load calculation.

Unit Brand

An HVAC system costs about $5,025 on average, but the brand you buy can change this number. For example, brands like Amana or Coleman tend to come in the lower end of the spectrum at $3,175, while brands Trane and York are often $6,350 or more.

Emission Standards

A new major cost factor specific to Denver is the passing of House Bill 23-1161, which set new Ultra-Low NOx (nitrogen oxide) emissions standards in the state of Colorado. This new regulation will lead to higher equipment and installation costs in the long run, because it requires more specialized units and more specialized installation knowledge. The new Ultra-Low NOx emission standards that went into effect on Jan. 1, 2026 is expected to increase labor and material costs.

HVAC Pro Costs

Hiring a Denver HVAC company to replace your furnace or AC costs around $1,600 in labor alone, but those costs can vary depending on the type of unit, time of year, and other factors. As the new Ultra-Low NOx (nitrogen oxide) emissions standards take effect, expect both labor and material costs to begin to rise. Get multiple quotes from local HVAC companies to find the right pro for your project budget and timeline.

Does Replacing Your AC and Furnace Increase Home Value?

You can expect a new HVAC system to increase your home’s value by 5% to 7%. In Denver, upgrading to a higher-efficiency system that meets the newest emissions regulations could be a huge selling point when selling your home. This investment also reduces your cooling and heating costs in Denver’s hot summers and cold winters, which could be well worth the investment, even if you don’t plan to sell.

How Angi Gets Its Local Cost Data 

To help homeowners plan their next project, Angi provides readers with carefully researched cost data and upholds strict editorial standards. We start with national average project costs, which we collect by analyzing competitor information, retailer material costs, and input from professional contractors. We then apply local price index data to calculate location-specific estimates that reflect what homeowners typically pay in their local area. To do that, we use data from the U.S. Bureau of Economic Analysis (BEA), including its Regional Price Parities (RPPs), which measure price differences across cities. This helps us account for differences in labor, materials, and overall cost of living, so estimates in higher- or lower-cost areas better reflect real-world local pricing.

Every estimate undergoes a thorough editorial review to verify accuracy, consistency, and alignment with observed market conditions.

Want to help us improve our cost data? Send us a recent project quote to [email protected]. Quotes and personal information will not be shared publicly.