What Should Heating Repair Cost on Long Island?
Most repairs total $189–$350, including the $189 service call that covers the first hour of labor. Every service below shows real ranges for its specific jobs, or see the full cost guide.
Complete Heating Service for Long Island Homes
LI Heating Co. handles heating repair across Long Island, plus installation and maintenance: same-day furnace repair, boiler replacement sized from a real heat-loss calculation, oil burner tune-ups with the combustion numbers in writing, and annual service that prevents the January no-heat call. Licensed and insured technicians work on all makes and models, every day of the season.
Long Island winters are hard on equipment, and the island's housing stock is unusually varied. Steam radiators still heat pre-war villages like Manhasset and Rockville Centre. Cast-iron oil boilers run in Levitt-era capes from Levittown to Hicksville. Hydronic baseboard is the default from Massapequa to Lindenhurst, while newer construction around Smithtown and Ronkonkoma leans on high-efficiency gas furnaces and heat pumps. East of Riverhead, oil and propane carry most homes through winter. We service all of it, and our trucks are stocked with the parts these systems actually fail on: ignitors, flame sensors, circulators, zone valves, thermocouples, nozzles and aquastats, so most repairs finish in one visit.
- Same-day repair across Nassau and Suffolk County, with 24/7 emergency dispatch
- Flat $189 service call that includes the first hour of labor
- Oil, natural gas and propane systems repaired, installed and maintained
- All major brands: Weil-McLain, Burnham, Peerless, Utica, Navien, Carrier, Trane, Lennox, Rheem, plus Beckett, Carlin and Riello burners
- Licensed and insured, a local family-owned business and PSEG Long Island partner
For independent background on any system named below, the ENERGY STAR home heating guidance profiles each type in plain language.
Recent Heating Installations by Our Team
A few recent jobs from our schedule: the equipment we install and the standard of work behind every quote on this site.
Our Heating Services
Emergency Heating Repair →
No heat now? Priority 24/7 dispatch, nights, weekends and holidays.
Furnace Repair →
Ignitors, blowers, boards, heat exchangers, short-cycling and no-starts on all major brands.
Furnace Installation →
Right-sized new furnaces with clean installs and honest efficiency advice.
Furnace Replacement →
When repair stops making sense: straight talk, the $5,000 rule, and exact quotes.
Boiler Repair & Service →
Hot-water and steam boilers: leaks, cold zones, low pressure, circulators, zone valves.
Boiler Installation →
Heat-loss-sized boiler installs, piped correctly, not oversized.
Boiler Replacement →
Cast-iron to high-efficiency swaps with rebate guidance where programs apply.
Oil Burner Repair & Service →
Beckett, Carlin, Riello: lockouts, tune-ups, replacements. A true Long Island specialty.
Steam Heat & Radiator Repair →
One-pipe and two-pipe steam: banging pipes, spitting vents, traps and uneven heat.
Baseboard Heating Repair →
Cold sections, air-bound loops and leaking elements in hydronic baseboard, the LI default.
Heat Pump Repair →
Ducted and ductless systems: cold-snap output loss, defrost faults, sensors, leaks.
Water Heater Repair & Replacement →
Tank, tankless and indirect units: repair today or same-day replacement.
Heating Maintenance & Tune-Ups →
Annual instrumented tune-ups that prevent the January no-heat call.
Radiant Heat Repair →
Radiant floor loops, manifolds and mixing valves, including Levitt-era slab systems.
Ductwork Repair & Replacement →
Leaky, crushed or undersized ducts fixed; real airflow measured, not guessed.
Thermostat Repair & Installation →
From failed mercury stats to smart thermostats wired correctly for zoned heat.
Zone Control Repair →
Zone valves, circulators and controls: the cure for the one cold room.
Combi Boiler & Tankless Service →
Navien and other combi/tankless units: service, descaling and installation.
Oil to Gas Conversion →
Honest conversion math: when it pays, when a modern oil burner wins.
Heating Oil Delivery →
COD heating oil delivered island-wide by our sister fuel company, will-call or automatic.
Oil Tank Services →
Tank inspections, testing, replacement and safe abandonment for aboveground and buried tanks.
Gas Line Installation & Repair →
Safe, permitted gas line work for conversions, ranges and generators.
Heating Services FAQs
How much should I expect to pay for heating repair?
Most repairs total $189 to $350, including the flat $189 service call that covers the first hour of labor; parts make up the difference. Each service page lists real ranges for its specific repairs, and our cost guide has the full table.
Do you repair furnaces as well as boilers?
Yes, and everything attached to them: oil burners, steam systems, baseboard loops, zone controls, thermostats, ductwork and water heaters. Long Island homes run every kind of heat, and we service all of it.
Is 24/7 emergency service really available?
Yes. No-heat calls get priority dispatch any hour, any day, across Nassau and Suffolk County.
What brands do you service?
All major equipment: Weil-McLain, Burnham, Peerless, Utica, Slant/Fin, Navien, Carrier, Trane, Lennox, Rheem, Goodman and more, plus Beckett, Carlin and Riello oil burners.
Do you service both oil and gas heating systems?
Yes, both, every day. Long Island splits roughly between oil heat, heaviest in Suffolk and the older North Shore villages, and natural gas across most of Nassau and the central corridor. We repair and install oil and gas furnaces, boilers and water heaters, plus propane systems on the East End. Brands we see weekly include Weil-McLain, Burnham, Peerless, Navien, Carrier, Trane and Rheem, with Beckett, Carlin and Riello on the burner side.
Do you handle installations as well as repairs?
Yes. We install and replace as well as repair: furnaces, boilers, combi and tankless units, oil-to-gas conversions, gas lines and ductwork. Replacement estimates are free and sized from a heat-loss calculation, never square footage alone.