24/7 Emergency Service Available
Family-Owned & Operated Since 1981
Domino Fuel - Long Island heating oil and HVAC
Suffolk County(631) 779-3196 Nassau County(516) 357-5773
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★ Licensed & Insured · Serving Long Island Since 1981

Heating & HVAC Repair on Long Island

Boiler, oil burner, furnace, water heater, and parts repair across Suffolk and Nassau County, with 24/7 emergency service, free estimates, and honest advice.

Schedule Service Call (631) 779-3196
Free estimates · Licensed techs · 24/7 emergency service
★★★★★
At a Glance

Domino Fuel repairs every part of your heating and HVAC system across Long Island, from boilers and oil burners to furnaces, water heaters, and the individual parts that fail. Licensed techs, 24/7 emergency service, a clear quote before any work, and a free estimate.

Licensed & Insured

Certified Long Island techs

24/7 Emergency

Repair day or night

Free Estimates

No-obligation quotes

Since 1981

Family-owned, local, trusted

Repair Services

Long Island's Local Repair & Service Team

When something in your heating or HVAC system breaks, you want it fixed fast and fixed right. As part of our full service across Long Island, our licensed technicians repair boilers, oil burners, furnaces, water heaters, heat pumps, and central AC, plus the individual parts that fail, like circulator pumps, coils, igniters, and ignition transformers.

We offer 24/7 emergency service across Suffolk and Nassau County, a clear quote before any work, and honest repair-or-replace advice. Looking to buy new equipment instead? Explore the brands we carry, or see our heating and cooling services.

24/7 EmergencyLong Island heating and HVAC repair team
Boiler Repair & Parts

Oil & Gas Boiler Repair

Fast no-heat boiler repair plus the common parts that fail, all fixed by licensed techs.

Boiler Repair

24/7 no-heat boiler repair for oil and gas boilers, with honest repair-or-replace advice.

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Oil Boiler Tune-Up

Annual cleaning and combustion service that restores efficiency and prevents breakdowns.

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Circulation Pump Replacement

Same-day circulator pump replacement when the boiler runs but radiators stay cold.

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Boiler Coil Replacement

Clean or replace a scaled or failed tankless coil to restore hot water and efficiency.

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Burner / Boiler Water Leaks

Find and fix leaks around the burner, boiler, and connections before they spread.

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Oil Burner Repair & Parts

Oil Burner Repair, Maintenance & Ignition

Everything that keeps your oil burner firing safely and efficiently.

Oil Burner Repair

Fast repair for all burner makes and models, with 24/7 emergency no-heat service.

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Oil Burner Maintenance

Annual professional service to protect safety, efficiency, and equipment life.

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Efficiency Testing

Combustion testing of CO2, smoke, and stack temperature for safe, low-cost heat.

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Prime & Start Service

Ran low on oil? We bleed the lines and restart your burner, often the same day.

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Ignition & Transformer

Repair spark and hot-surface igniters and replace failed ignition transformers.

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Igniter Repair

Diagnose and fix a furnace or boiler that will not light from a failed igniter.

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Furnace, Water Heater & Cooling

Furnace, Water Heater, Heat Pump & AC Repair

One local team for the rest of your home comfort system.

Heating Repair (All Systems)

Your full-service heating repair company for furnaces, boilers, burners, and heat pumps.

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Furnace Repair

24/7 no-heat furnace repair for gas and oil furnaces, with a carbon-monoxide safety check.

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Water Heater Repair

Fast repair for tank and tankless water heaters across Long Island.

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Heat Pump Repair

Diagnose and repair heat pumps for reliable year-round heating and cooling.

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AC Repair

Central air conditioning repair, plus installation and replacement when needed.

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Thermostat Service

Install, replace, repair, or reprogram smart and programmable thermostats.

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Tank Components

Oil Tank Components

Smaller fixes and components that keep everything running.

Oil Tank Gauge Replacement

Replace a stuck or broken tank gauge so you always know your real oil level.

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Oil Tank Vent Alarm

Install or replace the vent whistle that prevents overfills during delivery.

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24/7 Emergency

Emergency Heating Service

Lost heat in a cold snap? Our around-the-clock team responds fast across Long Island.

Emergency Heating Repair

24/7 no-heat repair for furnaces, boilers, oil burners, and heat pumps.

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Emergency Boiler Repair

Fast response for no-heat, leaks, and pressure faults on your boiler.

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Emergency Oil Burner Service

24-hour help when your burner will not fire, smokes, or shuts down.

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Emergency Furnace Repair

24/7 fast response when a furnace won't start, smokes, or shuts down, with a carbon-monoxide check.

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Emergency Furnace Replacement

Same-day assessment and fast replacement when a furnace fails for good.

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Why Domino Fuel

Why Long Island Trusts Our Repairs

Service that has kept Long Island warm since 1981.

What You Get Every Time

  • Licensed, insured, local technicians who know Long Island systems
  • 24/7 emergency response across Suffolk and Nassau County
  • A clear, up-front quote before any work begins
  • Quality parts we stock or quickly source
  • Honest repair-or-replace advice, never a hard sell
FAQ

Frequently Asked Questions

Answers Long Island homeowners ask us most about heating and HVAC repair.

1Do you offer 24/7 emergency repair on Long Island?

Yes. We provide around-the-clock emergency repair for boilers, furnaces, and oil burners across Suffolk and Nassau County, so if you lose heat on a cold night we can get a licensed technician to you fast.

2How much does a repair cost?

It depends on the system and the fault. Many repairs are far cheaper than replacement, and we diagnose the problem and give you a clear, up-front quote before any work begins. The estimate is free.

3Should I repair or replace my equipment?

If your system is relatively young and the repair is modest, repair is usually the smart move. If it is old, inefficient, or the repair is a large share of a new unit, replacement may pay off. We give honest advice either way.

4Do you repair all brands?

Yes. Our technicians service all major brands of boilers, burners, furnaces, water heaters, and cooling equipment. If you are considering new equipment, we can also show you the brands we install.

5Do you serve all of Long Island?

Yes. We serve Suffolk County, Nassau County, and parts of Queens with the same licensed, local team.

6Are you licensed and insured?

Yes. Domino Fuel is fully licensed and insured, and has served Long Island since 1981.

Need a Repair on Long Island?

Get fast, honest repair from your local Long Island team, with 24/7 emergency service and a free estimate.

Schedule Service Call (631) 779-3196
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