Short answer
A yearly heating tune-up before the season catches the problems behind most January no-heat calls, and on oil it’s close to essential because burners soot up quickly. On Long Island it typically costs $150–$250 for a gas furnace, $175–$300 for a gas boiler and $200–$350 for an oil burner cleaning. Between visits, change the filter, keep three feet clear around the equipment and test your carbon monoxide alarms.
Your checklistGas furnaceOil burnerBoilersCostFAQ
A yearly tune-up before the heating season catches the problems behind most January no-heat calls. On oil it’s close to essential, because an oil burner that isn’t cleaned soots up quickly. Use this list to know what a technician should do and what’s on you.
What You Can Do Yourself
- Replace the furnace filter, then check it monthly through the winter.
- Clear three feet around the furnace, boiler and water heater. No paint cans, laundry or boxes.
- Test smoke and carbon monoxide alarms, and replace any CO alarm past its end-of-life date (most last 7 to 10 years).
- Check the outdoor vent and intake pipes on a high-efficiency furnace for leaves, nests or snow.
- On oil, check the tank gauge and order a delivery before you drop below a quarter tank.
- On steam, check that the sight glass is about half full.
What a Gas Furnace Tune-Up Should Include
- Clean and test the flame sensor and inspect the igniter
- Inspect the heat exchanger for cracks and the burners for rust or an uneven flame
- Measure gas pressure and temperature rise against the furnace label
- Test the pressure switch, limit switch and inducer motor
- Clear the condensate trap and drain on high-efficiency models
- Check the vent pipe for proper slope and secure joints
- Run a combustion test, including carbon monoxide in the flue
What an Oil Burner Tune-Up Should Include
- Replace the nozzle, oil filter and pump strainer
- Clean soot from the combustion chamber, heat exchanger and flue pipe
- Set the electrodes and check the ignition transformer
- Run a combustion test for draft, smoke, CO2 and efficiency, and adjust to the numbers
- Check the barometric damper and the chimney base for blockage
- Inspect the oil line and tank for leaks or weeping
Extra Steps for Boilers
- Steam – flush the low-water cutoff, check the sight glass and pressure control, and test the safety valve
- Hot water – check system pressure and the expansion tank, test the relief valve, and purge air from each zone
- Confirm circulator pumps and zone valves work on a call for heat
- Look for leaks at the boiler, the near-boiler piping and the radiators
What a Tune-Up Costs
| Service | Typical Long Island price |
|---|---|
| Gas furnace tune-up | $150–$250 |
| Gas boiler tune-up | $175–$300 |
| Oil burner cleaning and tune-up | $200–$350 |
These are typical ranges, not quotes. A yearly plan can bundle the tune-up with priority scheduling; see HVAC maintenance.
Signs the Tune-Up Was Done Right
- You get a written report or a combustion printout with the numbers
- On oil, the technician replaced the nozzle and filter and can show you the old ones
- The system ran a full heating cycle before the technician left
- Any problem found came with a price before it was fixed
Tune-Up FAQ
When should I schedule a heating tune-up?
September through November, before the first cold snap. Booking early also avoids the wait when many systems fail on the same cold night.
Do I need a tune-up every year?
On oil, yes, because soot builds up every season. Gas furnaces and boilers can sometimes go longer, but most manufacturer warranties expect yearly service, and a cracked heat exchanger is a safety issue you only catch by looking.
How long does a tune-up take?
About an hour for a gas furnace, and one to two hours for an oil burner or a boiler. A heavily sooted oil burner takes longer.
Will a tune-up lower my heating bill?
A dirty oil burner or a badly adjusted gas burner wastes fuel, so a tune-up usually wins back lost efficiency. It won’t make an old system as efficient as a new one.
Book Your Heating Tune-Up
Call (516) 930-5483 to get on the schedule before the first cold snap.