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Top Heating & Furnace Contractors in Seattle, WA

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Out of Network Heating & Furnace Contractors in Seattle, WA

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:

Seattle Heating & Furnace Contractors are rated 4.8 out of 5 based on 3,202 reviews of 26 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 Seattle, WA

  • NewProject: Install or Replace a Heat Pump
    Location: Seattle, WA
    Date: 10/14/22
    Install or Replace: Installing new
    Heating System Type: Gas-fired forced air (central heating)
    Heat pump type wanted: Want recommendation
    Location: Home/Residence
    Desired Completion Date: 1 - 2 weeks
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: No
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Seattle, WA
    Date: 10/14/22
  • NewProject: Repair or Reprogram a Thermostat
    Location: Seattle, WA
    Date: 10/14/22
    Thermostat type: Manual thermostat
    Heating System Type: Steam boiler radiator
    Thermostat Age: Don't know
    Location: Home/Residence
    Is this an emergency?: No
    After Business Hours: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Property Owner: Yes
    Comment: Danfoss wall mount Remote Setpoint & Sensor wire broke off from the plastic piece. The address is in a residential condo. The heater works fine just the remote malfunctioned. I am working with home warranty but open to quote without working with warranty as well
  • NewProject: Install or Replace a Heat Pump
    Location: Seattle, WA
    Date: 10/14/22
  • NewProject: Repair Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Seattle, WA
    Date: 10/14/22
    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 Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Seattle, WA
    Date: 10/14/22
    Kind of Heating System: Natural gas fired
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Planning & Budgeting
  • NewProject: Install an Electrical Baseboard or Wall Heater
    Location: Seattle, WA
    Date: 10/13/22
    Choose electric wall heat type: Wall fan unit
    Square footage needed: Less than 1500 sq ft
    Number of rooms to be heated: 2 - 5
    Location: Home/Residence
    Desired Completion Date: Within 1 week
    Request Stage: Ready to Hire
  • NewProject: Repair a Natural Gas, Propane or Electric Fired Boiler or Radiator Heating System
    Location: Seattle, WA
    Date: 10/13/22
    Type of system: Natural gas fired
    Location: Home/Residence
    Is this an emergency?: No
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
  • NewProject: Install or Replace a Heat Pump
    Location: Seattle, WA
    Date: 10/13/22
    Install or Replace: Installing new
    Heating System Type: Gas-fired forced air (central heating)
    Heat pump type wanted: Air source
    Location: Home/Residence
    Desired Completion Date: Timing is flexible
    Request Stage: Ready to Hire
    Property Owner: Yes
    Are you interested in financing?: No
  • NewProject: Install Natural Gas or Propane Furnace / Forced Air Heating System
    Location: Seattle, WA
    Date: 10/13/22

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