Updated for 2026 · Nassau & Suffolk County

How Much Does Heating & AC Repair Cost on Long Island?

Complete pricing guide for furnace, boiler, heat pump, and air conditioning repair and replacement in Nassau and Suffolk County.

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Quick Answer

How much does heating repair cost on Long Island?

Heating repair on Long Island typically costs $150–$500 for common repairs. Diagnostic service calls run $89–$150, applied toward the repair cost. Major repairs range from $500–$1,500. Full system replacement costs $3,500–$9,000+ depending on system type. Emergency after-hours service adds $50–$100.

Heating Repair Costs

Average repair costs for Long Island homeowners in Nassau and Suffolk County. Prices include parts and labor.

Furnace Repair

$150 – $500

Ignitor replacement, blower motor, gas valve, flame sensor. Most common repairs completed same day.

Furnace Repair Service

Boiler Repair

$200 – $600

Circulator pump, zone valve, expansion tank, aquastat. Oil and gas boilers — all major brands.

Boiler Repair Service

Heat Pump Repair

$150 – $600

Refrigerant recharge, compressor, reversing valve, defrost board. Ducted and ductless systems.

Heat Pump Repair Service

Oil Burner Repair

$200 – $500

Nozzle replacement, ignition transformer, fuel pump, filter. Common in older Long Island homes.

Oil Burner Service

Radiant Heat Repair

$250 – $800

Zone valve, circulator pump, expansion tank, pipe leak repair. Hydronic and electric systems.

Radiant Heat Service

Water Heater Repair

$150 – $500

Thermocouple, anode rod, heating element, T&P valve. Tank and tankless models.

Water Heater Service

Get an Exact Price for Your Repair

Every heating system is different. Call for a free diagnostic quote specific to your home.

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AC & Cooling Repair Costs

Air conditioning repair and installation costs for Long Island homes. Salt air and coastal humidity increase wear on AC systems across Nassau and Suffolk County.

AC Repair

$150 – $600

Capacitor, contactor, fan motor, refrigerant recharge. Central air and ductless systems.

AC Repair Service

AC Installation

$3,500 – $12,000

Central air conditioning systems. Price depends on home size, ductwork condition, and SEER rating.

AC Installation Service

Ductless Mini-Split

$3,000 – $6,000

Single-zone installation. Multi-zone systems run $6,000–$15,000. No ductwork required.

Ductless Mini-Split Service

AC Maintenance

$89 – $150

Annual tune-up includes coil cleaning, refrigerant check, electrical inspection, and filter replacement.

AC Maintenance Service

Full System Replacement Costs

When repair costs exceed 50% of replacement value, or your system is past its expected lifespan, replacement is usually the better investment.

System TypeReplacement CostExpected Lifespan
Gas Furnace$3,500 – $7,50015–20 years
Oil Furnace$4,000 – $8,00015–25 years
Gas Boiler$4,000 – $8,50015–30 years
Oil Boiler$4,500 – $9,00015–25 years
Heat Pump$4,500 – $10,00010–15 years
Central AC$3,500 – $12,00012–20 years
Water Heater (Tank)$1,200 – $2,5008–12 years
Water Heater (Tankless)$2,500 – $4,50015–20 years

When to Repair vs. Replace Your Heating System

Repair Makes Sense When:

  • System is under 10 years old
  • Repair costs less than 50% of replacement
  • First major repair on this system
  • System still runs efficiently between issues
  • Energy bills haven't increased significantly

Replace Makes Sense When:

  • ×System is over 15 years old
  • ×Frequent repairs (3+ in the past 2 years)
  • ×Cracked heat exchanger (safety hazard)
  • ×Energy bills rising despite maintenance
  • ×Repair cost exceeds 50% of replacement value

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We provide upfront pricing before any work begins. No hidden fees, no surprise charges.

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Or call us directly: (631) 612-6928

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Frequently Asked Questions About HVAC Costs

How much does a heating diagnostic cost on Long Island?

A heating diagnostic or service call on Long Island typically costs $89–$150. Most companies apply this fee toward the cost of repair if you proceed with the work.

Does emergency or after-hours heating repair cost more?

Yes. Emergency heating repair on nights, weekends, and holidays typically adds $50–$100 to the standard repair cost. The diagnostic fee and parts pricing remain the same.

When should I repair vs. replace my furnace or boiler?

Consider replacing if your system is over 15 years old, requires frequent repairs, has a cracked heat exchanger, or the repair costs more than 50% of replacement value. Systems under 10 years old are almost always worth repairing.

Why does heating repair cost vary so much?

Cost depends on the type of system (furnace, boiler, heat pump), the specific part that failed, whether it is a standard or emergency call, and the brand/model. Simple fixes like ignitors or thermostats are inexpensive; compressors and heat exchangers are major repairs.

Do you provide free estimates for heating system replacement?

Yes. We provide free, no-obligation estimates for all heating and AC system replacements on Long Island. A technician will assess your current system, measure your home, and recommend the right size and efficiency level.

How much does AC repair cost on Long Island?

AC repair on Long Island typically costs $150–$600 depending on the issue. Common repairs like capacitor or contactor replacement are $150–$300. Refrigerant recharge runs $200–$450. Compressor replacement is $800–$1,500.

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