Furnace Repair on Long IslandHeat back on — fast.
24/7 emergency furnace repair across Long Island. Most no-heat calls fixed on the first visit.
- 24/7 emergency response
- Common parts stocked on every truck
- Gas, oil & electric furnaces
- Up-front pricing before work begins
Furnace Repair across Nassau & Western Suffolk
Long Island HVAC Repair provides 24/7 emergency furnace repair for gas, oil, and electric systems across Nassau and Western Suffolk. Our trucks carry the most common failure parts — ignitors, flame sensors, inducer motors, capacitors, and gas valves — and ~85% of no-heat calls are fixed on the first visit with flat-rate pricing and a 1-year warranty.
When the heat fails on a January night, we move quickly. Our techs carry the most common furnace parts — ignitors, flame sensors, capacitors, and inducer motors — to fix problems on the first visit.
Common signs you need furnace repair
Catching these early prevents emergency calls and bigger repair bills down the road.
Tripped pressure switch, failed ignitor, dirty flame sensor, or thermostat issue.
Overheating from a clogged filter, failing limit switch, or oversized unit.
Delayed ignition — gas builds up before lighting. Stop using and call immediately.
Should be steady blue. Yellow indicates incomplete combustion and a CO risk.
Stuck fan limit switch or thermostat wired to "on" instead of "auto".
Leave the house, call 911, then call us. We test heat exchangers on every call.
What's typically going wrong
The single most common no-heat call. Hot-surface ignitors crack after 5–7 winters. We replace them in 30 minutes.
Carbon buildup prevents the sensor from proving flame; the gas valve closes for safety. Cleaned in 15 minutes.
Serious safety issue — releases CO into your home. Found by camera inspection. Replacement is usually a new furnace.
Common on 10+ year old high-efficiency furnaces. Easy diagnosis, $400–$800 part.
Wiring issues, dead batteries, or a failed control board prevent the furnace from getting the call for heat.
Repair or replace?
Furnace is under 12 years old, repair is under $1,200, and the heat exchanger is sound.
Heat exchanger is cracked, unit is 15+ years old, or the repair exceeds $1,500.
Long Island furnace repair cost ranges
Real numbers based on actual installs across Nassau and Western Suffolk. Final pricing depends on your home — we always quote in writing before any work begins.
Get an exact quote|
Diagnostic visit
Waived with approved repair
|
$199–$199 |
|
Hot-surface ignitor
|
$220–$380 |
|
Flame sensor cleaning
|
$140–$220 |
|
Inducer motor replacement
|
$540–$960 |
|
Gas valve replacement
|
$500–$900 |
|
Control board replacement
|
$520–$1,000 |
|
After-hours / weekend premium
|
+$95–$150 |
Pricing reflects typical Long Island ranges. Equipment, complexity, and incentives may increase or reduce your final cost.
What to expect, step by step
Live dispatcher, no answering service. Most no-heat calls dispatched within 90 minutes.
Tech identifies the failure and presents a flat-rate quote in writing — and we always check the heat exchanger.
Common parts ride on every truck. ~85% of no-heat calls completed first visit.
Combustion analyzer confirms safe CO levels and proper draft before we leave.
Long Island homes, treated like our own
Every furnace repair job starts with shoe covers, drop cloths, and a walk-through with the homeowner. We document with photos, explain what we found, and quote in writing — no surprises.
- Background-checked, uniformed technicians
- Photos of every issue, before & after
- Flat-rate pricing approved before we start
Every major HVAC brand, serviced and installed
Furnace Repair in your town
Local pricing, the failures we actually see in your housing stock, and response times from our Levittown shop.
No heat? Your repair shop is already in the neighborhood.
Heat restored same-day — usually in one visit
Often same-day heat, bayside to Sunrise Highway
Gas and oil heat for 1955 to 1965 ranches and capes
No heat? We'll get it fixed tonight.
Furnace Repair across Long Island
We dispatch from Levittown to every town in Nassau and Western Suffolk. Tap your town for local install notes and direct booking.
- →Furnace Repair in Babylon
- →Furnace Repair in Baldwin
- →Furnace Repair in Bellmore
- →Furnace Repair in Bethpage
- →Furnace Repair in Deer Park
- →Furnace Repair in East Meadow
- →Furnace Repair in Farmingdale
- →Furnace Repair in Freeport
- →Furnace Repair in Garden City
- →Furnace Repair in Hempstead
- →Furnace Repair in Hicksville
- →Furnace Repair in Jericho
- →Furnace Repair in Levittown
- →Furnace Repair in Lindenhurst
- →Furnace Repair in Massapequa
- →Furnace Repair in Massapequa Park
- →Furnace Repair in Merrick
- →Furnace Repair in Mineola
- →Furnace Repair in North Bellmore
- →Furnace Repair in North Massapequa
- →Furnace Repair in North Wantagh
- →Furnace Repair in Old Bethpage
- →Furnace Repair in Oyster Bay
- →Furnace Repair in Plainedge
- →Furnace Repair in Plainview
- →Furnace Repair in Rockville Centre
- →Furnace Repair in Salisbury
- →Furnace Repair in Seaford
- →Furnace Repair in South Farmingdale
- →Furnace Repair in Syosset
- →Furnace Repair in Uniondale
- →Furnace Repair in Wantagh
- →Furnace Repair in West Hempstead
- →Furnace Repair in Westbury
- →Furnace Repair in Williston Park
- →Furnace Repair in Wyandanch
Furnace Repair questions, answered
Yes. Our dispatch line is staffed around the clock. For a complete no-heat in winter, we typically arrive within 90 minutes anywhere in Nassau and Western Suffolk.
Yes — we service gas, oil, and electric heating equipment. Oil-furnace repairs and tune-ups are a Long Island specialty for us given the older housing stock.
Most often: tripped breaker, dead thermostat batteries, dirty flame sensor, or a failed ignitor. We diagnose all four within 15 minutes of arrival.
Yellow burner flames, soot, a chemical smell, or persistent CO alarm. We use a camera and combustion analyzer on every call to confirm.
A small premium of $95–$150 applies for service after 9pm and on holidays. Maintenance plan members get the after-hours fee waived.
If your furnace is 15+ years old and the repair quote is over $1,500 — or if the heat exchanger is cracked — replacement is almost always the better long-term value.
Yes. If your CO detector is alarming, leave the house immediately, call 911, then call us. We perform combustion safety analysis on every emergency call.
Often paired with furnace repair
Furnace Installation
High-efficiency furnaces that lower your gas bill.
Boiler Repair & Installation
Boiler repair, cleaning and installation — steam, gas & combi.
Heating Services
Furnaces, boilers, and heat pumps — repaired, serviced, replaced.
Heat Pump Installation
Heat pump repair and installation — ducted & ductless.
Read before you buy
- What emergency HVAC repair really costsRead the guide
- Upstairs cold, downstairs hot: why it happensRead the guide
- Boiler repair costs on Long Island in 2026Read the guide
Go beyond the equipment.
Pair furnace repair with one of our whole-home comfort solutions — designed for Long Island climates, ductwork, and rebate stacks.
Whole-Home Zoned Comfort
End hot upstairs, cold downstairs with ductless, ducted zoning, or variable-capacity heat pumps.
Indoor Air Quality
MERV-13/16 filtration, whole-home dehumidifiers, UV-C, and ERV ventilation systems.
Rebates & Financing
Utility incentives on qualifying systems, plus $0-down Synchrony financing on approved credit.
Need furnace repair on Long Island?
Talk to a real Long Island technician — usually same-day appointments, flat-rate pricing, and a 1-year warranty on every visit.