24/7 EMERGENCY LINE: 631-591-2289 · Real Person, Any Time, Any Day

Emergency Furnace Repair Long Island NY

Furnace not igniting? Blowing cold air? Short-cycling on safety? We dispatch real local technicians 24/7 with igniters, flame sensors, gas valves, oil burner parts, and capacitors on every truck.

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Available 24/7/365: 631-591-2289

★★★★★ Family-owned in Wading River since 2004. Licensed gas-fitter and oil-burner techs.

24/7 Emergency Forced-Air Furnace Repair Across Long Island

When your furnace quits in the middle of a Long Island winter, every hour matters. Pipes risk freezing. The house cools fast. Kids and elderly family members need warmth. You need a real local heating company that picks up the phone, dispatches a real technician, and arrives with the right parts to actually restore heat tonight.

All Island Comfort has answered Long Island no-heat furnace calls since 2004 from our Wading River base, covering all of Suffolk County and Nassau County. The same local number rings to a real dispatcher 24 hours a day, 7 days a week, including holidays. Our trucks are stocked with the furnace parts that fail most often (igniters, flame sensors, gas valves, oil burner nozzles, capacitors, blower motors, control boards), so the majority of emergency furnace calls finish on the first visit.

Whether your furnace is gas-fired, oil-fired, electric, or propane, our cross-trained technicians know the diagnosis flow chart. If the burner won't light, the blower won't run, the limit switch keeps tripping, or the furnace cycles on a fault code and locks out, call us right now. We'll triage on the phone and have a technician on the way.

Long Island emergency furnace repair technician at work

This Is an Emergency. Call Now.

Skip the form. Real dispatcher 24/7. We'll triage and roll a tech.

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Every Furnace Type We Repair on Emergency Calls

Long Island homes run furnaces on every common fuel. Whatever you have, our cross-trained crew works on it. We don't subcontract emergencies and we don't send techs who only know one fuel.

  • Gas furnaces (natural gas): Forced-air natural-gas furnaces of every brand: Carrier, Trane, Bryant, Lennox, Goodman, Rheem, York, Amana. Pilot, hot-surface ignitor, gas valve, induced-draft motor, pressure switch faults.
  • Oil furnaces: Oil-fired forced-air furnaces with Beckett, Riello, or Carlin burners. Lockout, nozzle, electrode, oil pump, fuel filter, cad cell, primary control.
  • Electric furnaces: Resistance-element electric furnaces. Sequencer, element, contactor, high-limit switch, and disconnect faults.
  • Propane furnaces: LP-converted forced-air systems common on East End estates without natural gas service. Same diagnostics as gas with LP-specific orifice sizing.
  • High-efficiency condensing furnaces: 90%+ AFUE furnaces with PVC venting and condensate drains. Pressure-switch, condensate-trap, and inducer-motor specifics.
  • 80% AFUE atmospheric-vent furnaces: Older atmospheric/B-vent gas furnaces. Spill switch, draft hood, and combustion-air diagnostics.
  • Modulating & two-stage furnaces: Variable-output furnaces (Carrier Infinity, Trane XV, Bryant Evolution). Communicating control board diagnostics.
  • Single-stage furnaces: Standard fixed-capacity furnaces. The majority of Long Island residential installs.
  • Mobile-home furnaces: Specialty narrow-cabinet furnaces in manufactured homes.
  • Air handlers paired with electric furnaces: Electric heat strips integrated with central AC air handlers.
  • Furnace blower motors: ECM (variable-speed) and PSC blower motor replacement. Capacitor, run-relay, and module faults.
  • Furnace control boards: Integrated furnace controls. Diagnostic flash codes, communication faults, and full-board replacement.
  • Thermostats & zone controls: Programmable, smart (ecobee, Nest, Honeywell), and zoning panel diagnostics.
  • Ductwork & registers: Disconnected supply or return runs, severely restricted filters, blocked registers, and crushed flex duct that starves the furnace.

Common Furnace Emergency Symptoms We Diagnose

Most furnace emergencies fit into a handful of failure patterns. Knowing the symptom helps the dispatcher route the right tech with the right parts on the truck.

Furnace Won't Turn On at All

Blower silent, no flame, no fan. Most common causes: tripped breaker, blown fuse on the control board, dead thermostat batteries, failed transformer, control-board failure, or for oil furnaces a primary-control lockout. We diagnose with a multimeter and the manufacturer's flow chart, not by guessing.

Furnace Igniting Then Locking Out

Furnace fires, runs 30 to 90 seconds, shuts down with a fault code. Usually a dirty flame sensor (gas), weak hot-surface ignitor cracking on heat-up, dirty cad cell (oil), oil-pump pressure issue, or pressure-switch fault on a high-efficiency unit. Fault-code reading + cleaning or part swap usually fixes on visit one.

Furnace Blowing Cold Air

Blower runs but air is room-temperature. Either the burner isn't lighting (gas valve, ignitor, oil burner) or the blower is running on continuous-fan mode while the call for heat hasn't completed. Five-minute diagnosis.

Furnace Short-Cycling on Safety

Furnace fires, runs 2 to 5 minutes, shuts off, restarts, repeats. Almost always a high-limit safety tripping from restricted airflow (clogged filter, closed dampers, blocked returns), a dirty flame sensor, or a partially failed gas valve.

Banging or Booming on Ignition

Delayed ignition. Gas accumulates in the chamber before lighting, then ignites with a boom. Dangerous condition that needs immediate service. Usually a dirty burner or weak ignitor.

Burning Smell or Smoke from Vents

Burning dust on first start of the season is normal and clears within an hour. Persistent burning smell, smoke, or visible black soot at the registers is not normal. Could be a cracked heat exchanger (carbon monoxide risk), severe oil burner sooting, or wiring insulation degradation. Shut the furnace off and call us immediately.

Pilot Light Won't Stay Lit (Standing-Pilot Furnaces)

Older standing-pilot furnaces (rare now but still in use on the East End) commonly fail when the thermocouple weakens. We replace thermocouples on the spot. Newer hot-surface ignition systems don't have a pilot but mimic the symptom when the ignitor cracks.

Carbon Monoxide Alarm Activated

Most serious furnace emergency. Leave the house immediately, get fresh air, and call 911 if anyone has symptoms. Then call us. Carbon monoxide from a furnace almost always traces to a cracked heat exchanger, blocked flue or chimney liner, or back-drafting condition. We diagnose with a calibrated CO meter and combustion analyzer.

Furnace Out Right Now? Don't Wait.

The longer a no-heat furnace situation goes, the higher the risk of frozen pipes and water damage. Call now.

Call 631-591-2289

Our 4-Step Rapid Response for No-Heat Furnace Calls

  1. 1
    Triage on the call. A real Long Island dispatcher answers and walks through your symptoms. We rule out anything you can fix in 60 seconds (thermostat, breaker, reset button), then dispatch immediately. No phone tree, no offshore call center.
  2. 2
    Local tech to your door. Typical response is 1 to 3 hours across Suffolk and Nassau, faster for the North Shore corridor between Wading River and Port Jefferson. Your tech texts when 15 minutes out.
  3. 3
    Diagnose and quote before any wrench moves. Flat diagnostic fee, written quote on-site, your written approval before any repair starts. No surprise charges, no upselling.
  4. 4
    Restore heat tonight when possible. About 85% of our emergency furnace calls finish on the first visit because the trucks carry igniters, flame sensors, gas valves, oil burner nozzles and electrodes, capacitors, blower motors, and control boards. For uncommon parts we identify them on visit one, source next-day, and return without a second diagnostic charge.

What to Do While You Wait for the Technician

  • Close interior doors to trap warmth in occupied rooms while you wait.
  • Replace thermostat batteries if the screen is blank or dim. Many no-heat calls are dead batteries.
  • Check the breaker and emergency switch. There's typically a red switch at the top of the basement stairs and another near the furnace itself. Both must be on.
  • Try the oil burner reset once. Red button on the side of an oil burner unit. Press it once. If it locks out again immediately, do not press it a second time, that pumps unburned oil into the chamber.
  • Open kitchen and bathroom cabinet doors so any residual heat reaches pipes inside the cabinets along exterior walls.
  • Run cold water at a slow drip on faucets along exterior walls to prevent frozen pipes.
  • Do not use the oven or unvented kerosene heaters for heat. Both produce dangerous carbon monoxide indoors.

Why Long Island Trusts Us With Furnace Emergencies

  • 22+ years on Long Island. Family-owned in Wading River since 2004. We know the housing stock and the equipment families.
  • A real person answers, day or night. 24/7/365 dispatch from a local Long Island number, not an answering service.
  • Heavily stocked trucks. Most calls finish on the first visit because the parts that fail most often live on every truck.
  • Cross-trained on every fuel and system. Gas, oil, electric, propane, heat pump, hydronic, steam, radiant. One company, no subcontracting.
  • Licensed for everything we do. HVAC, plumbing, oil-burner, gas-fitting, EPA Section 608 refrigerant. Insurance certificates on request.
  • Flat, transparent pricing. Diagnostic fee disclosed on the phone. Repair quote in writing before work starts. After-hours premium disclosed up front.
  • Service plan members skip the line. Annual maintenance plan members get first dispatch priority and reduced after-hours rates.

Long Island Service Area for Emergency Furnace Repair

We dispatch furnace techs to all of Suffolk and Nassau counties from our base in Wading River, NY. If you're on Long Island and your furnace is out, we'll get to you.

Suffolk County

  • Wading River
  • Riverhead
  • Mount Sinai
  • Rocky Point
  • Shoreham
  • Miller Place
  • Port Jefferson
  • Setauket
  • Stony Brook
  • Smithtown
  • Huntington
  • Northport
  • Centereach
  • Patchogue
  • Sayville
  • Manorville
  • Calverton
  • Mattituck
  • Cutchogue
  • Greenport
  • Westhampton
  • Hampton Bays
  • Southampton
  • East Hampton

Nassau County

  • Hempstead
  • Oyster Bay
  • Long Beach
  • Garden City
  • Hicksville
  • Levittown
  • Massapequa
  • Mineola
  • Freeport
  • Westbury
  • Plainview
  • Syosset
  • Bethpage
  • Farmingdale
  • Manhasset
  • Great Neck
  • Port Washington
  • Roslyn
  • Glen Cove
  • Rockville Centre
  • Valley Stream
  • Lynbrook
  • Wantagh
  • Bellmore

Related Emergency Services

Furnace failures often overlap with other heating system emergencies. If your specific situation is more boiler, heat pump, or fuel-specific, jump straight to that page.

Related Standard Services

If it's not an after-hours emergency, our standard service pages cover routine repair, replacement, and tune-ups at non-emergency rates.

Return to all emergency services | Return to home

FAQs

Long Island Emergency Furnace Repair FAQs

What counts as a furnace emergency?

Any furnace failure that risks your safety or your home: complete loss of heat in winter, furnace lockout you cannot reset, gas smell, carbon monoxide alarm, smoke or burning smell from the furnace, repeated short-cycling that won't stop, or visible flame outside the burner box. We dispatch immediately for any of those.

How fast can you respond to a furnace emergency on Long Island?

Typical response is 1 to 3 hours across Suffolk and Nassau counties. We dispatch from Wading River with techs staged across the North Shore and East End. Service-plan members get first dispatch priority. Major cold snaps may extend response slightly because of call volume, but every emergency caller gets a confirmed ETA on the phone.

Do you fix all furnace brands?

Yes. Carrier, Trane, Bryant, Lennox, Goodman, Rheem, York, Amana, American Standard, Heil, Payne, Weil-McLain, Burnham, Williamson, and the rest. We don't favor any brand, we work on what you have.

What should I check before calling for emergency furnace repair?

Quick checks: confirm thermostat is on heat and set above room temp, replace thermostat batteries, check the breaker, verify the red emergency switch (basement wall or top of stairs) is on, for oil furnaces check that the tank has fuel above quarter-tank. If those don't restore heat, call us. We will not bill for an unnecessary trip if we walk you through one of these on the phone.

How much does emergency furnace repair cost on Long Island?

Diagnostic fee is flat and disclosed on the phone. Common emergency furnace repairs (igniter, flame sensor, gas valve, oil burner nozzle and electrode, capacitor, blower motor) typically run $200 to $700 parts and labor. Major repairs (heat exchanger, control board, full burner) run higher. We provide a written quote on-site before any work starts.

Can you replace my furnace tonight if it can't be repaired?

Often yes. We carry common gas and oil furnace models in stock for emergency installs. If we can't install tonight, we install next-day in the vast majority of cases. Same-day temporary heat (portable propane or electric heaters) can be arranged if needed.

Do you cover Nassau County for furnace emergencies?

Yes. We cover all of Nassau County including Hempstead, Oyster Bay, Long Beach, Garden City, Hicksville, Levittown, Massapequa, Mineola, Freeport, Plainview, Syosset, Bethpage, Manhasset, Great Neck, Port Washington, Glen Cove, Rockville Centre, and surrounding areas.

Will my home warranty cover the furnace repair?

Many home warranties cover heating system breakdowns, depending on the policy and cause of failure. We perform the diagnosis and provide an itemized invoice you submit to the warranty company. We don't work directly with home warranty dispatch networks because they often delay emergency response significantly.

Furnace Out Right Now? Don't Wait.

Real local techs, 24/7 dispatch, parts on the truck for every furnace fuel and brand. Family-owned in Wading River since 2004.

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