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

Emergency Heating Repair Long Island NY

No heat in the middle of the night? Boiler locked out? Furnace blowing cold? We dispatch real local technicians 24/7 across Suffolk and Nassau, with parts on the truck to fix it tonight whenever possible.

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

★★★★★ Family-owned in Wading River since 2004. Licensed & insured. Real local techs.

24/7 Emergency Heating Repair Across Long Island

When the heat goes out on a 20°F night in February, the clock starts ticking. Pipes are at risk. Pets and kids need warmth. Elderly family members need stable indoor temperatures. The waiting game with a regional call center or a "next available appointment Tuesday" answer is not an option. You need a real local heating company that picks up the phone, dispatches a real local technician, and shows up with the right parts to actually restore heat tonight.

That's what All Island Comfort does. We've answered Long Island no-heat calls since 2004 from our Wading River base, covering all of Suffolk County and Nassau County. The same local number rings to a dispatcher 24 hours a day, 7 days a week, including holidays and through every nor'easter we've ever seen. Our trucks are stocked with the parts that fail most often, so the majority of emergency heating repair calls finish on the first visit.

If your boiler is in lockout, your furnace is short-cycling, your heat pump is iced over, your radiators have gone cold, or you simply have no heat and no idea why, call us right now. We'll triage on the phone and have a technician on the way.

Long Island emergency heating system repair technician at work

This Is an Emergency. Call Now.

Skip the form. Press the number, get a real dispatcher 24/7, and we'll have a tech on the way after a quick on-the-phone triage.

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Every Heating System We Repair on Emergency Calls

Long Island homes run on every heating fuel and every system architecture. Whatever you have, we work on it. We don't subcontract heating emergencies, and we don't send techs who only know one fuel type. Our crews are cross-trained on gas, oil, electric, propane, and heat pump systems, so we diagnose accurately on the first visit.

  • Gas furnaces: Forced-air gas furnaces of every brand. Pilot, hot-surface ignitor, gas valve, induced-draft motor, blower, and limit switch faults.
  • Oil furnaces: Oil-fired forced-air furnaces. Burner lockout, nozzle replacement, electrode adjustment, oil pump, fuel filter, and cad-cell faults.
  • Electric furnaces: Resistance-element electric furnaces. Sequencer, element, contactor, and high-limit faults.
  • Propane furnaces: LP-converted forced-air systems common on East End estates. Same diagnostics as gas with LP-specific orifice sizing.
  • Gas boilers: Hot-water and steam gas boilers. Ignition control, gas valve, circulator pump, expansion tank, zone valve, low-water cutoff, and aquastat faults.
  • Oil boilers: Oil-fired hot-water and steam boilers. Burner reset, nozzle, electrode, transformer, oil pump, cad cell, and primary control faults.
  • Steam boilers: Single-pipe and two-pipe steam systems common in older Long Island colonials. Pressuretrol, low-water cutoff, sight glass, and main vent faults.
  • Hot-water boilers: Hydronic systems with copper or PEX distribution. Air bound, circulator failure, zone control faults, leaks at fittings.
  • Heat pumps: Air-source and ductless mini-split heat pumps in heating mode. Defrost cycle, refrigerant charge, reversing valve, and compressor diagnostics.
  • Radiant floor systems: Hydronic floor coil systems. Manifold faults, circulator failure, leak detection, and zone-valve issues.
  • Hydronic baseboards: Fin-tube baseboards on hot-water systems. Air bound zones, circulator faults, and valve replacements.
  • Panel radiators & cast-iron radiators: Older steam and hot-water radiators. Air vent replacement, valve packing, and noise diagnosis.
  • Indirect water heaters: Tanks heated by the boiler. Aquastat, zone control, and sensor faults that knock out hot water along with heat.
  • Wall heaters & gas heaters: Wall-mounted gas heaters and direct-vent space heaters in additions and finished basements.

Common Emergency Heating Problems We Diagnose

The vast majority of no-heat calls fit into a handful of failure patterns. Knowing the symptom helps the dispatcher route the right technician with the right parts on the truck. When you call, describe what you're seeing and hearing, and we'll match the diagnosis.

No Heat at All

System completely silent or running but blowing cold air with no warm output. Most common causes: tripped circuit breaker, blown fuse on a control board, dead thermostat batteries, oil burner lockout (red reset button on the burner), gas valve failure, ignition control failure, or for boilers a low-water cutoff that's stopped the boiler safely. We diagnose with a multimeter and the manufacturer's troubleshooting flow chart, not by guessing.

Some Heat but Not Enough to Keep Up

Furnace or boiler is running constantly but the house never reaches the thermostat setpoint. Causes include a clogged air filter (forced-air), a failed circulator pump (hydronic), air bound zones (hydronic), partial gas valve failure, undersized equipment, or in heat pumps a stuck reversing valve preventing full heating output. This is also a common symptom when the system is short-cycling on a high-limit safety because of restricted airflow or low water flow.

Boiler or Furnace Keeps Locking Out

System fires, runs for a minute or two, then shuts down with a fault code. Oil burners commonly lock out from a fouled nozzle, weak electrode spark, dirty cad cell, or fuel-pressure issue. Gas systems lock out from a dirty flame sensor, weak hot-surface ignitor, gas valve failure, or pressure-switch fault. We carry the right parts on the truck for every common lockout cause.

Strange Noises (Banging, Whistling, Gurgling)

Banging in steam systems usually means water hammer caused by trapped condensate. Banging in oil burners usually means delayed ignition (a dangerous condition that needs immediate service). Whistling on a forced-air furnace usually means restricted return air. Gurgling in hydronic baseboards usually means trapped air that needs purging. All of these are diagnosable in one visit.

Burning Smell or Visible Smoke

Burning dust on first start of the season is normal and clears within an hour. Persistent burning smell, smoke from heating equipment, or any visible black soot is not normal and is an emergency. Causes include a cracked heat exchanger (extremely dangerous, carbon monoxide risk), oil burner over-firing or sooting up, or wiring insulation degradation. Shut the system off and call us immediately.

Pilot Light Won't Stay Lit

Standing-pilot systems (older boilers and water heaters) commonly fail when the thermocouple weakens with age. We replace thermocouples on the spot. Newer hot-surface ignition systems don't have a pilot but can mimic the symptom when the ignitor cracks. Different fix, same urgency.

Carbon Monoxide Alarm Activated

This is the most serious heating emergency. Leave the house immediately, get fresh air, and call 911 if anyone has symptoms (headache, dizziness, nausea, confusion). Then call us. Carbon monoxide in a Long Island home almost always traces back to a cracked heat exchanger, a blocked flue or chimney liner, or a back-drafting condition with negative pressure in the basement. We diagnose with a calibrated CO meter and combustion analyzer, not just a guess.

Hot in Some Rooms, Cold in Others

Forced-air zoning failure or hydronic zone-valve failure. Most multi-zone Long Island homes have separate thermostats for upstairs and downstairs (or for additions). When one zone gets stuck, the others run too hot or too cold. Diagnosis is a 30-minute zone-valve and zone-control check.

Heat Out Right Now? Don't Wait.

The longer a no-heat situation goes, the higher the risk of frozen pipes and water damage. We answer 24/7 and dispatch immediately.

Call 631-591-2289

Our 4-Step Rapid Response for No-Heat 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 batteries, breaker reset, emergency switch, oil tank level), then dispatch immediately if it's a real failure. 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 will text or call when 15 minutes out so you're not guessing.
  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, no scary "everything is broken" tactics.
  4. 4
    Restore heat tonight when possible. About 85% of our emergency heating calls finish on the first visit because the trucks carry the parts that fail most often. 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

A few simple actions can prevent a no-heat call from turning into a frozen-pipe disaster while you wait for us to arrive.

  • Close interior doors to trap warmth in occupied rooms (bedrooms, living areas).
  • Open kitchen and bathroom cabinet doors so any residual heat reaches the pipes inside the cabinets along exterior walls.
  • Run cold water at a slow drip on faucets along exterior walls to prevent the pipes from freezing.
  • Move pets and family to one room and bundle up. Keep elderly family members warm.
  • Do not use unvented kerosene heaters or the oven for heat, ever. Both produce carbon monoxide indoors.
  • If using a portable electric space heater, keep it 3 feet from anything flammable and never leave it unattended or on overnight.
  • Try the system reset once. Oil burners have a red reset button on the side of the burner unit. Press it once. If the system locks out again immediately, do not press it a second time, that pumps unburned oil into the chamber and creates a fire hazard.

Why Long Island Homeowners Trust Us With No-Heat Calls

  • 22+ years on Long Island. Family-owned in Wading River since 2004. We know the housing stock, the equipment, and the streets.
  • 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 no-heat calls finish on the first visit because the parts that fail most often (igniters, flame sensors, oil burner nozzles, electrodes, capacitors, circulator pumps, zone valves) 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, never surprise-added.
  • 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 Heating Repair

We dispatch to all of Suffolk and Nassau counties from our base in Wading River, NY. If you're on Long Island and your heat 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

Heating emergencies often overlap with adjacent equipment. If your specific situation matches one of these, jump straight to that page.

Related Standard Heating Services

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

Return to all emergency services | Return to home

FAQs

Long Island Emergency Heating Repair FAQs

What counts as an emergency heating repair?

Any heating failure that puts your safety, your home, or your family's well-being at risk. The most common emergency heating calls on Long Island are: complete loss of heat in winter, boiler or furnace lockout you cannot reset, gas smell, carbon monoxide alarm activation, smoke or burning smell from heating equipment, leaking boiler or radiator, or thermostat showing system error codes during freezing weather.

How quickly can you respond to a no-heat emergency on Long Island?

Typical response time across Suffolk and Nassau counties is 1 to 3 hours from the call. We dispatch from Wading River with technicians staged across the North Shore and East End for fast coverage. Existing customers and active service-plan members get first dispatch priority. During major cold snaps, response can extend slightly due to call volume, but every emergency caller gets a confirmed ETA on the phone.

Do you fix all types of heating systems?

Yes. We service every common Long Island heating system: gas furnaces, oil furnaces, electric furnaces, propane furnaces, gas boilers, oil boilers, steam boilers, hot-water boilers, air-source heat pumps, mini-split heat pumps, geothermal heat pumps, hydronic baseboards, radiant floor systems, panel radiators, and indirect water heaters connected to boilers. One company, every fuel, every system.

What should I check before calling for emergency heating repair?

Quick checks that take 60 seconds: confirm the thermostat is set to heat and above room temperature, replace the thermostat batteries if it's blank, check the circuit breaker for the furnace or boiler, verify the emergency switch (red switch on the basement wall or stairs) is on, and for oil systems check that the tank has fuel. If those don't restore heat, call us. We will not bill for an unnecessary trip if we walk you through one of these fixes on the phone.

How much does emergency heating repair cost on Long Island?

Costs depend on the time of day, the equipment, and the parts needed. The diagnostic fee is flat and disclosed on the phone before we dispatch. Common emergency repairs (igniter, flame sensor, gas valve, oil burner nozzle and electrode, circulator pump, zone valve, blower motor capacitor) typically fall in the $200 to $700 range parts and labor. Major repairs (heat exchanger, control board, full burner replacement) run higher. We provide a written quote on-site before any work starts and never charge surprise add-ons.

What if my boiler or furnace cannot be repaired?

If the equipment is beyond economical repair, we can install a same-day or next-day replacement. We carry common gas and oil boiler and furnace models in stock for emergency installs, and we walk through high-efficiency upgrade options including NYS Clean Heat heat-pump replacement (which often qualifies for $2,000 to $10,000 in stacked rebates if you're open to switching off fossil fuels).

Do you cover Nassau County for emergency heating calls?

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. Response time to Nassau is typically slightly longer than Suffolk because of the distance from our Wading River dispatch base, but we still target same-day completion on every Nassau emergency call.

Will my heating system fail be covered by my home warranty?

Many home warranties cover heating system breakdowns, but coverage depends on your specific policy and whether the failure is from a covered cause (mechanical failure vs. lack of maintenance vs. age). We can perform the diagnosis and provide an itemized invoice and findings statement that you submit to your warranty company. We do not work directly with home warranty companies because their dispatch networks often delay emergency response significantly.

No Heat Right Now? Don't Wait.

Real local techs, 24/7 dispatch, parts on the truck. Family-owned in Wading River since 2004. Suffolk and Nassau covered.

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