Skip to main content

    Professional Furnace Installation in Seattle & Western Washington

    Stay warm all winter with a professionally installed, energy-efficient furnace from Christianson's Heating & Cooling. We handle everything from sizing to installation to warranty registration.

    4.9 / 5from 263 customers

    Trusted by homeowners in Yelm, Olympia, Lacey, Tumwater & surrounding areas

    Same-Day Service Available
    Licensed & Insured
    100% Satisfaction Guarantee

    Signs You Need a New Furnace

    Furnace age over 15-20 years

    Rising energy bills despite regular maintenance

    Frequent repairs costing 50% or more of replacement value

    Uneven heating throughout your home

    Strange noises or persistent odors

    Yellow pilot light indicating carbon monoxide risk

    Don't wait for small problems to become big ones. Schedule service today.

    Our Furnace Installation Process

    1

    In-Home Assessment

    We evaluate your home's heating needs, existing ductwork, and electrical capacity with professional heat load calculations to recommend the perfect furnace size and model.

    2

    Detailed Estimate

    Receive a transparent quote including equipment, labor, permits, and any available utility rebates or financing options. No hidden fees.

    3

    Professional Installation

    Our certified technicians install your new furnace to manufacturer specifications with proper ventilation, gas connections, electrical hookup, and safety checks.

    4

    Testing & Training

    We test all system functions, review thermostat operation, register your warranty, and show you how to maintain your new furnace for optimal performance.

    Why Choose Christianson's for Furnace Installation?

    Expert installation of all major brands including Carrier, Trane, Lennox, Rheem, and Goodman

    Proper sizing with Manual J load calculations for optimal comfort and efficiency

    Energy-efficient furnace options with AFUE ratings up to 98%

    Rebate assistance for PSE, Tacoma Power, and other utility programs

    Financing options available with approved credit

    Permit handling and inspection coordination included

    Brands We Service

    Our certified technicians are trained to work on all major HVAC brands

    Carrier
    Trane
    Lennox
    Rheem
    Goodman
    Bryant
    Amana
    York

    Frequently Asked Questions

    How much does a new furnace installation cost in Seattle?

    Furnace installation costs typically range from $3,500 to $8,000 depending on the unit size, efficiency rating (AFUE), brand, and installation complexity. High-efficiency models (95+ AFUE) cost more upfront but save money long-term through reduced heating costs. We provide free, detailed estimates with all costs outlined upfront.

    What size furnace do I need for my home?

    Proper furnace sizing requires a professional heat load calculation (Manual J) based on your home's square footage, insulation levels, window quality, ceiling height, and climate zone. Most Seattle-area homes need 40,000 to 100,000 BTU furnaces. Oversized furnaces waste energy and cause uneven heating, while undersized units can't keep up in cold weather.

    How long does furnace installation take?

    Most residential furnace installations are completed in 4-8 hours. Complex installations involving ductwork modifications, electrical upgrades, or conversion from one fuel type to another may take 1-2 days. We'll provide an accurate timeline during your free estimate.

    What furnace brands do you install?

    We install all major HVAC brands including Carrier, Trane, Lennox, Rheem, Goodman, Bryant, Amana, and more. We'll help you choose the best brand and model based on your home's needs, your budget, and local utility rebate programs.

    Related Services

    4.9 / 5 · 263 verified reviews

    Why Homeowners Trust Us for Furnace Installation

    Real homeowners. Real results. Here's what your neighbors are saying.

    "Albert showed up same day and fixed our furnace fast. Honest and professional — exactly what you want from an HVAC company."
    Mike R.
    Olympia · Furnace Repair
    "Joe came out the day after Christmas and had our heat running within 2 hours. Professional, fast, and fair pricing."
    Lourdes S.
    Lacey · Emergency Heat Repair
    "Vincent came out the next day after we called about our AC. Friendly, knowledgeable, and had it fixed quickly."
    Rebecca E.
    Yelm · AC Repair

    Ready to Get Comfortable?

    Schedule your visit today — evenings & weekends available

    Slots filling up — book now for same-day availability

    4.9 (263 reviews)

    Same-Day Service

    Emergency repairs available year-round. We'll be there when you need us most.

    Certified Technicians

    NATE and EPA certified professionals with all necessary tools and parts.

    Fixed Price

    No hidden fees or surprise bills. Flat rate pricing with parts locally sourced.