Serving Van Nuys, Sherman Oaks, Encino, Reseda, North Hollywood Open 24 Hours Licensed C-20 HVAC Contractor - Lic 1122606 (877) 258-4885
(877) 258-4885
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Greenland AC · San Fernando Valley

Heating & Furnace Repair, Tune-Ups and Installation Across the San Fernando Valley

Valley winters are short but real — and a neglected furnace is both unreliable and dirty. Greenland AC repairs, tunes, and replaces heating systems with a warranty on all our work.

Heating & Furnace

Reliable Heat, Cleaner Air, Lower Winter Bills

We repair, maintain, and install gas furnaces and complete heating systems for homes throughout the San Fernando Valley. That covers the common failures — ignitors, flame sensors, blower motors, control boards, thermostats — as well as full replacements when a furnace has reached the end of its life. Because the furnace's blower also drives your air conditioning, heating work done right pays off year-round: a healthy blower and clean burner assembly mean better airflow in July, not just warmer nights in January.

The average furnace is a magnet for dirt, dust, and debris, and that matters more than most homeowners realize. A furnace that never gets cleaned doesn't just lose efficiency — it distributes that debris through the ductwork and into every room of the house each time the blower kicks on. In the Valley, where furnaces sit idle through a long dusty summer and then fire up cold in December, the first heating cycles of the season push months of accumulated buildup straight into your living space. An annual cleaning and inspection before winter keeps the burn clean, the airflow strong, and the air in the house noticeably fresher.

Our process is simple. For repairs, a technician inspects the system, identifies the fault, and explains the fix and the alternatives before any work begins. For replacements, we start with a free on-site estimate: we check the existing ductwork, venting, and gas line, size the new furnace to the home's actual heating load, and handle permits under our CSLB C-20 license. Every installation is tested end to end — ignition, temperature rise, safety switches, carbon monoxide checks — before we call it done, and all of our work is covered by a warranty.

When is replacement smarter than another repair? Furnaces generally last 15 to 20 years. If yours is in that range and needs a major component — a heat exchanger, a control board, a blower assembly — replacement is usually the better spend, and a cracked heat exchanger is a safety issue that ends the conversation. Newer high-efficiency furnaces extract far more heat from the same gas than older units, and paired with sealed ductwork they can shrink winter gas bills meaningfully. We will tell you plainly which side of the line your furnace is on.

Signs Your Furnace Needs Service

  • It takes noticeably longer to warm the house than it used to
  • The burner cycles on and off rapidly, or won't stay lit
  • A dusty or burning smell every time the heat kicks on
  • Banging, screeching, or rumbling from the furnace cabinet
  • The pilot or burner flame is yellow instead of steady blue
  • Rooms far from the furnace never really get warm
  • Gas bills rising while your usage habits haven't changed

What a Furnace Tune-Up Covers

  • Clean the burners, flame sensor, and blower compartment
  • Replace or check the filter and measure airflow
  • Inspect the heat exchanger for cracks or corrosion
  • Test ignition, limit switches, and other safety controls
  • Check the venting and test for carbon monoxide
  • Verify thermostat operation and temperature rise

Repair or Replace Your Furnace?

Under ten years old with a routine part failure? Repair it. Past fifteen with a major component going out, or a heat exchanger problem of any kind? Replace it — you'll get safer operation, quieter running, and lower gas use. In between, it comes down to the repair's scope and the unit's history, and we'll give you an honest read either way. The estimate for a replacement is always free and always on-site.

Frequently Asked Questions

Why is my furnace blowing cold air?
Common culprits: the thermostat fan set to ON instead of AUTO (so the blower runs between heating cycles), a dirty flame sensor shutting the burner down, a failed ignitor, or a clogged filter tripping the high-limit switch. Some of these you can check yourself; the rest are quick diagnoses for a technician.
How often should the furnace be serviced, and when?
Once a year, ideally in fall before the first cold snap. A pre-season tune-up catches worn parts before they fail on the coldest night of the year and clears out the dust that settled over the Valley's long summer.
Is a yellow burner flame really a problem?
Yes. A healthy gas flame burns blue. A yellow or flickering flame usually means incomplete combustion, which wastes gas and can produce carbon monoxide. Shut the system off and have it inspected — this is one symptom not to sit on.
What affects the cost of a new furnace?
The home's heating load, the efficiency tier you choose, whether venting or the gas line needs updating, and the condition of your ducts. Because those vary house to house, we do a free on-site estimate instead of quoting blind — you get a real number for your actual home.
My heat died at night — can you actually come out?
Yes. We run 24/7 emergency service across our San Fernando Valley service area. A house with no heat, a suspected gas smell, or a furnace tripping its safety switches is exactly what that line is for.

Why Greenland AC for Heating

A family-owned Van Nuys company handling Valley furnaces since 2006 — honest diagnoses, clean installs, and a warranty behind every job.

  • Licensed, bonded & insured — CSLB C-20 #1122606
  • Free on-site estimates on furnace replacements
  • Safety-first: heat exchanger and CO checks on every tune-up
  • 24/7 emergency heating service
  • Warranty on all our work
(877) 258-4885

Licensed & Insured

Licensed C-20 HVAC Contractor - Lic 1122606. Family-owned and serving the San Fernando Valley since 2006.

About Greenland AC

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