(888) 381-2953

Top-rated independent heating and cooling across California's Central Valley and the Sierra foothills

Gas Furnace Installation

We install gas furnaces in homes across California and Nevada, replacing a heater that has quit, cracked a heat exchanger, or grown too unreliable to trust through another cold snap. Most homeowners call us after a heating repair visit turns up a failed exchanger, a shorted board on an older unit, or a furnace old enough that parts are hard to source. Call us and we will look at your existing furnace, ducts, gas line, and venting, then quote a replacement that fits the house.

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  • A real person answers
  • Open 7 days
  • Written quote before work starts

Taking calls until 5:00 PM PT

HVAC technician at work

What a gas furnace installation involves

We shut off gas and power, disconnect the old furnace, and pull it out along with any vent pipe or flue connector that is corroded or wrongly sized. The new furnace gets set level, tied into the supply and return plenums, connected to gas with a fresh shutoff and drip leg, vented properly, and wired to the thermostat. Condensing units also need a condensate drain with a trap. Then we fire it, check gas pressure and temperature rise, and confirm safe combustion before we leave.

What we check and install with the furnace

A furnace only performs as well as everything attached to it. We measure the return air, check duct sizing and obvious leaks, and look at whether the filter slot is big enough to breathe. We check the gas line capacity, the flue path, and combustion air in closets and attic spaces. New thermostat wiring goes in when the old wire is short on conductors. We size the furnace by BTU from the house itself, not by copying whatever number was on the old cabinet.

How we decide replacement is the right call

We repair when a repair holds. A cracked or rusted heat exchanger, a furnace that keeps locking out on safeties, or a unit with obsolete parts pushes us toward replacement. Age matters, but so does what you have already spent and how the ductwork looks. If your furnace smells of gas or a carbon monoxide alarm sounds, leave the building first, call 911 or your gas utility from outside, then call us. Otherwise we will inspect and give you both options in plain terms.

The same on every visit

The quote comes first, in writing

Covering 123 cities across California, Nevada.

Phones answered by people

Open 7 days, 8:00 AM to 5:00 PM PT.

Independent of every manufacturer

Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.

Gas Furnace Installation — quick answers

Can a new gas furnace use my existing ductwork?

Often yes, though we measure first. Undersized returns and leaking joints in attics or crawlspaces limit airflow and shorten furnace life. We tell you what needs sealing or resizing before installation rather than after.

Do I need new venting with a new furnace?

Usually. High efficiency condensing furnaces vent through PVC to the outside and need a condensate drain, so the old metal flue comes out. We confirm the vent route during the estimate visit.

How long does the installation take?

Most straight swaps take a day. Attic installs, gas line changes, new venting, or duct repairs can add a second day. We tell you which one your home is before we start.

How it works

  1. Step 1

    Tell us the symptom

    Call or fill in the quote form. We ask what changed, when it started, and what the thermostat reads. That tells us whether to bring parts for a cooling fault or a heating fault.

  2. Step 2

    We diagnose on site

    A technician checks the thermostat, the electrical side, airflow through the filter and coil, refrigerant pressures, and the outdoor unit. You get told what failed and why, in plain words, before anything is replaced.

  3. Step 3

    Repair and verify

    We make the repair, then run the system and measure the results at the vents. If a part needs ordering, we say so and give you a realistic window instead of a vague promise.

Call (888) 381-2953
  • A real person answers
  • Open 7 days
  • Written quote before work starts

Why homeowners call us

  • Built for real valley heatWe work in areas where afternoons sit above 110 degrees and systems run for months without a break. That shapes how we size repairs, check capacitors and contactors, and judge whether a compressor is genuinely done.
  • Attic and package unitsPlenty of homes across the region run attic air handlers or rooftop package units instead of a garage furnace and a side-yard condenser. We are used to the access, the duct runs, and the drain issues those setups bring.
  • Dust and debris we expectAg dust, cottonwood fluff and grass clippings pack condenser coils and starve a system of airflow. We clean what we find and show you the difference, rather than adding refrigerant to a unit that just could not breathe.
  • Heating too, not only ACFurnace repair, heat pump faults and no-heat calls get the same attention as summer work. Ignition problems, cracked or failing components and short cycling all get diagnosed before we recommend anything larger.
  • All major brands, gas & electricFrom Carrier and Trane to Lennox, Goodman, Rheem and Bryant, serviced independently.
  • Straight answersWhen a replacement beats a repair, we tell you, sometimes before we roll a truck.

Gas Furnace Installation

Part ofFurnace Installation
QuoteWritten, upfront
Gas & electricBoth
Open7 days

Ready to book gas furnace installation?

Describe the system and your ZIP. The written quote comes before any work.

  • A real person answers
  • Open 7 days
  • Written quotes
  • All major brands
  • Gas & electric
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