Licensed & Insured · Free Estimates

AC Repair &
Installation
Long Island

Central air, ductless mini-splits, AC repair & installation across Nassau & Suffolk County.

All brands serviced. Same-day repairs available. Free estimates on new AC systems.

All AC BrandsSame-Day ServiceFree Estimates24/7 EmergencyLicensed & Insured

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Quick Answer

How much does AC repair cost on Long Island?

AC repair in Nassau and Suffolk County costs $89–$600 for most common issues. Tune-ups and maintenance run $89–$200. New central AC installation starts at $4,500–$12,000 installed, depending on system size and home requirements.

Complete AC & Cooling Services for Long Island

LI Heating & Cooling provides full-service air conditioning repair, installation, and maintenance across Nassau and Suffolk County. Whether you need a fast same-day AC repair, a new central air system, or a ductless mini-split installed, our licensed technicians handle all makes and models.

Long Island's humid summers and coastal salt air create unique demands on cooling equipment. Salt air accelerates corrosion on condenser coils and fins, while high humidity increases compressor load. Our technicians understand these local factors and factor them into every diagnosis and installation recommendation.

From Carrier and Lennox to Goodman and Mitsubishi, we service all major AC brands. Our trucks carry common parts — capacitors, contactors, refrigerant, fan motors — to maximize same-day fix rates and get your home cool again as fast as possible.

Our Cooling Services

Expert AC service across all system types and brands

AC Repair

Fast AC repair for central air, ductless mini-splits, and heat pumps across Long Island. All brands serviced. Same-day service available.

Same-day AC repair, all brandsCall Now →

AC Installation

Central air conditioning and ductless mini-split installation for Nassau and Suffolk County homes. Free estimates. Licensed & insured.

New AC system installationCall Now →

Central Air Conditioning

Whole-home central air conditioning repair, installation, and maintenance for Long Island. Keep every room comfortable all summer.

Whole-home cooling systemsCall Now →

Ductless Mini-Split

Ductless mini-split installation and repair for Long Island homes without ductwork. Energy-efficient zone cooling — no duct runs required.

No ductwork requiredCall Now →

AC Maintenance

Annual AC tune-up and maintenance to maximize cooling efficiency, prevent breakdowns, and extend equipment life across Long Island.

Annual AC tune-upCall Now →

Emergency AC Repair

24/7 emergency AC repair across Nassau and Suffolk County. When your air conditioning fails on a 95° Long Island summer day, we respond fast.

24/7 same-day responseCall Now →

AC & Cooling FAQs

How much does AC repair cost on Long Island?

AC repair in Nassau and Suffolk County typically costs $89–$600. Diagnostic calls run $89–$150 (applied toward repair costs). Refrigerant recharges, capacitor replacements, and other common repairs range $150–$600. Major component failures (compressors, coils) can run $800–$1,200+. We provide upfront pricing before any work begins.

How long does AC repair take?

Most AC repairs are completed in 1–3 hours. We stock common parts on every truck to avoid return trips. Same-day service is available across Long Island for most repair types.

What AC brands do you service?

We service all major AC brands: Carrier, Lennox, Trane, York, Goodman, Rheem, Bryant, American Standard, Daikin, Mitsubishi, and more. Both central air systems and ductless mini-splits in all sizes.

How do I know if I need AC repair or replacement?

Repair if your system is under 10 years old and the repair cost is under 50% of replacement cost. Replace if it's over 15 years old, needs frequent repairs, or runs R-22 refrigerant. We give honest assessments — no pressure to replace unnecessarily.

Do you service both central air and ductless mini-splits?

Yes. We service all cooling system types including central air conditioning, ductless mini-splits, heat pump cooling, and window unit diagnostics. All brands and system sizes across Nassau and Suffolk County.

Is 24/7 emergency AC service available on Long Island?

Yes. We offer same-day and after-hours emergency AC repair across Long Island for complete cooling failures. When your AC goes down on a 95° summer day, call us — we prioritize emergency calls for rapid response.

Need Heating Service Too?

Furnace repair, boiler service, heat pumps — 24/7 emergency heating repair across Long Island.

View Heating Services →

No AC on a 95° Long Island Day?

Same-day AC repair available across Long Island. Free estimates on new AC installations.

📞 Call (631) 612-6928

Schedule Your AC Service

Or call us directly: (631) 612-6928

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