Furnace Repair for Long Island Homes
Emergency furnace repair available 24/7. All brands serviced. Upfront pricing with no hidden fees. NATE-certified technicians who keep your family warm.
Reliable Furnace Repair Across Nassau & Suffolk County
A furnace failure in the middle of a Long Island winter is more than an inconvenience. It is a safety concern. Pipes can freeze and burst within hours when indoor temperatures drop below 40 degrees. At Island Comfort HVAC, we treat every no-heat call as an emergency and prioritize getting your furnace running as quickly and safely as possible.
We repair all types and brands of gas furnaces including Carrier, Lennox, Trane, Rheem, Goodman, Bryant, York, Amana, and Ruud. Our technicians carry the most common furnace repair parts on their trucks, including ignitors, flame sensors, inducer motors, gas valves, blower motors, and control boards. This allows us to complete the majority of repairs in a single visit.
Safety is our first priority on every furnace repair call. Before we start any diagnostic work, we check for carbon monoxide, inspect the heat exchanger for cracks, and verify the venting system is intact. A cracked heat exchanger can leak carbon monoxide into your home, which is colorless and odorless. We carry combustion analyzers on every truck and test exhaust gases as part of our standard diagnostic procedure.
Common furnace repairs we handle include ignitor replacement (the most frequent furnace failure), flame sensor cleaning and replacement, inducer motor replacement, blower motor repair, gas valve service, thermostat troubleshooting, control board replacement, and limit switch issues. Every repair comes with our 90-day parts and labor warranty.
Our upfront pricing policy means we diagnose the problem, explain what is wrong, and provide a written price before any work begins. You decide whether to proceed. If you choose not to repair, you pay only the $89 diagnostic fee. We believe this transparency is what separates us from contractors who use vague estimates and surprise charges.
For after-hours emergencies, our 24/7 dispatch line is staffed by real people, not an answering service. When you call for an emergency, a technician is dispatched to your home the same evening whenever possible. We understand that a no-heat emergency cannot wait until morning.
Furnace Repair & Service Features
24/7 Emergency Service
No-heat emergencies cannot wait. Our after-hours dispatch sends a technician the same evening.
Safety-First Diagnostics
Every call starts with a carbon monoxide check, heat exchanger inspection, and venting verification.
All Brands Serviced
Carrier, Lennox, Trane, Rheem, Goodman, Bryant, York, Amana, Ruud, and every other residential furnace brand.
90-Day Repair Warranty
Parts and labor warranty on every furnace repair. Same component failure within 90 days is fixed free.
Parts on Every Truck
Ignitors, flame sensors, inducer motors, gas valves, blower motors, and control boards are stocked on our trucks.
Honest Recommendations
If repair cost exceeds replacement value, we tell you. We would rather earn your trust than charge for a bad repair.
Our Furnace Repair Process
Call Our Dispatch
Call us or submit a service request online. Describe the symptoms so we can prepare the right parts and tools.
Safety Check
Upon arrival, we check for carbon monoxide, inspect the heat exchanger, and verify safe venting before beginning diagnostics.
Full Diagnostic
We test ignition sequence, gas pressure, flame sensor signal, inducer motor operation, blower function, and thermostat communication.
Upfront Quote & Repair
We explain the problem, provide a written price, and complete the repair after your approval.
Safety Verification
After repair, we run the furnace through a complete heating cycle and re-test for carbon monoxide to ensure safe operation.
Same crew, start to finish.
No subcontractors. The team that starts your project is the team that finishes it.
Furnace Repair Pricing on Long Island
Furnace repair on Long Island costs between $150 and $900. Minor repairs like ignitor replacement or flame sensor cleaning typically run $150 to $300. Mid-range repairs such as inducer motor or blower motor replacement cost $300 to $600. Major repairs like gas valve or control board replacement range from $500 to $900.
Our $89 diagnostic fee covers the technician’s visit, safety checks, and full system diagnostic. This fee is waived when you proceed with the repair. Emergency after-hours calls include a dispatch premium, but the repair pricing remains the same.
If your furnace is over 20 years old and the repair cost approaches $800 or more, we will have an honest conversation about whether replacement is the better investment. We will never pressure you, but we will give you the information to make a smart decision.
What Long Island Homeowners Say
“James came out the same day we called. Diagnosed the issue in 20 minutes, had our AC back running within the hour. His crew installed our whole system four years ago and it has been flawless. Cannot recommend enough.”
“We got four quotes for central air. Island Comfort was the only company that showed up on time, explained every option without pressure, and gave us a written quote the same visit. System runs perfectly. Fair price.”
“Our furnace died on the coldest night in January. James had a tech at our house by 9 PM and we had heat back by midnight. They did not gouge us on the emergency call either. Ended up replacing the whole furnace the following week. Professional start to finish.”
Common Furnace Repair Questions
My furnace is not producing heat. What should I check?
How do I know if my heat exchanger is cracked?
How often should I replace my furnace filter?
Why does my furnace keep turning on and off?
Do you offer emergency furnace repair on weekends?
Other Services You May Need
Ready to Schedule Your Furnace Repair?
Free estimates. Honest pricing. Mon–Sat, 7 am to 7 pm.