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Top Heating & Furnace Contractors in DenverCO

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Out of Network Heating & Furnace Contractors in Denver, CO

Frequently Asked Questions

What is a furnace?

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A furnace generates and distributes heated air throughout your home. A vital part of the heating, ventilation, and air conditioning (HVAC) system—though it does not cool air—you activate a furnace when you set or adjust the temperature in a room using the thermostat. Furnaces can run off natural gas, oil, electric, or propane.

How long does a furnace last?

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The average gas furnace lasts 15 to 20 years, though some electric furnaces can last 30 years or more.

  • Gas furnace: 15–20 years
  • Electric furnace: 20–30 years
  • Oil furnace: 15–20 years

In addition to furnace type, your unit’s lifespan also depends on its size and the heating system you have—two-stage furnaces are more efficient and less likely to break than single-stage furnaces.

Having a reputable HVAC technician perform annual furnace maintenance and inspections can help ensure you get the most out of your unit. And, as always, change your filters regularly—a dirty filter can block airflow and overwork the motor.

How often should you change your furnace filter?

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You should change your furnace filter every one to three months to help maintain air quality, keep energy costs in check, and extend your unit’s lifespan. If people in your home have dust or pet dander allergies, you may consider changing your filters more regularly. Looking for an even simpler guideline? If the filter is dirty, replace it.

How much does a new furnace cost?

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The average cost of a furnace unit is $2,300 to $7,200, plus $150 to $500 per hour for installation. Furnace replacement prices depend on the type of furnace you need, its size, and local labor costs.

  • Gas: $3,800–$10,000
  • Electric: $2,000–$7,000
  • Oil: $6,750–$10,000
  • Mini-Split: $2,000–$15,000
  • Geothermal: $4,000–$17,000

If your furnace installation requires new gas lines or additional ductwork, add $250 to $800 for the gas lines and $3,00 to $5000 on average for the ductwork to your overall project costs.

Top Heating & Furnace Systems Projects

HomeAdvisor Community Rating

Overall Rating:

Denver Heating & Furnace Contractors are rated 4.8 out of 5 based on 9,886 reviews of 163 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.


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Recent Job Requests for Heating & Furnace Contractors in Denver, CO

  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/09/22
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Planning & Budgeting
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/09/22
    Other Features: Humidification
    Nature of Project: Replace existing central heating system
    Age of Heating Equipment: 5 - 10 years
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: Within 1 week
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: Yes
    Comment: i have a 1100 sq feet of living area above grade and 1100 below grade. My heater overheats and starts melting the plastic in the unit and it smells and smokes after about 45 minutes of being on. I have a high efficiency 96% furnace and i need it to be replaced. I need a price quote on the new furnace to be installed.
  • NewProject: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/09/22
    Current Heating System: Natural gas fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Customer moving in/out?: No
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/08/22
    Other Features: Central air conditioning
    Nature of Project: Install new central heating system
    Age of Heating Equipment: More than 20 years
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: More than 2 weeks
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: No
    Comment: Looking for a new system. Remodeling a home with an existing gas steam system with gas forced air.
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/08/22
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/08/22
  • NewProject: Service a Geothermal Heating or Cooling System
    Location: Denver, CO
    Date: 10/08/22
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Within 1 week
    Request Stage: Ready to Hire
  • NewProject: Repair or Reprogram a Thermostat
    Location: Denver, CO
    Date: 10/08/22
    Is this an emergency?: Yes
    Location: Home/Residence
    Desired Completion Date: Within 24 hours
    Comment: Thanks
  • NewProject: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Denver, CO
    Date: 10/07/22
    Current Heating System: Natural gas fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Within 1 week
    Request Stage: Ready to Hire
  • NewProject: Install or Replace a Heat Pump
    Location: Denver, CO
    Date: 10/07/22
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Planning & Budgeting

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