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Commercial Chiller Service  |  Long Island, NY

Commercial Chiller
Service & Repair
on Long Island, NY

Expert service, repair, and preventive maintenance for commercial chiller systems across Long Island. All Seasons technicians are experienced with air-cooled and water-cooled chillers for office buildings, medical facilities, data centers, and large commercial properties.

Air & Water-Cooled Systems
Service Contracts
Licensed & Insured
58 Years Experience
58 Years Serving Long Island — Our Story
Chiller Systems

Commercial Chiller Service on Long Island

Commercial chillers are large-scale refrigeration systems used to cool buildings that are too large for conventional HVAC equipment. They circulate chilled water (or refrigerant) through air handling units and fan coil units to cool entire buildings or multiple zones simultaneously.

All Seasons technicians are experienced with all major commercial chiller types — providing service, repairs, startups, and preventive maintenance contracts for Long Island properties of every size.

Air-Cooled Chillers

Reject heat directly to outdoor air via condenser coils and fans. Common on rooftops and mechanical areas. Lower installation cost, easier maintenance — the most prevalent chiller type on Long Island commercial properties.

Water-Cooled Chillers

Reject heat via cooling towers and condenser water loops. More energy-efficient for larger buildings but require more complex infrastructure. Common in large office buildings, hospitals, and data centers.

Modular & Process Chillers

Smaller, self-contained units used in process cooling applications, server rooms, labs, and medical facilities. Require precise temperature control and reliable uptime — All Seasons handles these with the same care as large central plant systems.

What We Do

Our Chiller Services

Chiller Repair & Diagnostics

Fast diagnosis of chiller failures — compressor issues, refrigerant leaks, condenser problems, controls failures, and more. We carry common parts and can resolve many issues in a single visit.

Preventive Maintenance Contracts

Scheduled maintenance programs for commercial chiller systems — including refrigerant checks, oil analysis, coil cleaning, controls calibration, and full system performance testing. Documented records provided after every visit.

Seasonal Startup & Shutdown

Spring startup and fall shutdown procedures — including safety checks, refrigerant verification, controls testing, and documentation — to ensure your chiller operates safely and efficiently at the start and end of each cooling season.

Chiller Replacement Consulting

When repair is no longer cost-effective, we help you evaluate replacement options, specify the right equipment for your building, and manage the installation process — minimizing disruption to your operations.

Equipment We Service

Chiller Brands & Systems We Work On

Our technicians are experienced with all major commercial chiller manufacturers. Whether you have a legacy system or recently installed equipment, we have the knowledge and tools to service it properly.

Trane
York / Johnson Controls
Carrier
Daikin / McQuay
Lennox
Multistack
Dunham-Bush
Climacool
AAON
Mammoth

Don't see your brand listed? Call us — if we haven't serviced it before, we'll tell you honestly. Most commercial chiller systems share similar components and principles, and our technicians have decades of experience across all types.

Common Chiller Problems

Signs Your Chiller Needs Service

Chiller Not CoolingLoss of cooling capacity is usually caused by refrigerant loss, compressor issues, dirty condenser coils, or a refrigerant metering device failure.
High Energy ConsumptionA chiller drawing more power than usual typically indicates fouled heat exchanger surfaces, low refrigerant charge, or a refrigerant metering problem. Efficiency drops cost real money every month.
Unusual Noises or VibrationCompressor noise, refrigerant flow sounds, or unusual vibration can indicate bearing wear, refrigerant issues, or loose components — all of which worsen if left unaddressed.
Frequent Trips & FaultsHigh-pressure, low-pressure, or temperature fault codes indicate a system that's struggling. Investigating the root cause early prevents compressor damage and costly failures.
Refrigerant or Oil LeaksVisible oil staining, refrigerant odor, or unexplained refrigerant loss requires immediate attention. Refrigerant handling requires certified technicians — call us promptly.
Service Agreements

Chiller Preventive Maintenance Contracts

A commercial chiller is one of the most expensive pieces of HVAC equipment in your building. Preventive maintenance contracts protect that investment — reducing emergency repair costs, extending equipment life, and keeping your building comfortable year-round.

All Seasons designs service agreements around your chiller system's specific requirements — manufacturer specifications, usage patterns, and your building's cooling season. We handle the scheduling and documentation so you don't have to.

  • Semi-annual or quarterly service visits — your choice
  • Refrigerant verification and oil analysis
  • Condenser and evaporator coil cleaning
  • Controls calibration and safety testing
  • Seasonal startup and shutdown procedures
  • Full written service report after every visit
  • Priority response for contract customers

Request a Chiller Service Call

We respond within 1 business hour

Why All Seasons

Why Long Island Businesses Trust All Seasons for Chiller Service

58 Years of Commercial Experience

All Seasons has served Long Island commercial clients since 1968. Our technicians have decades of hands-on experience with large commercial HVAC systems — including chillers, rooftop units, and central plant equipment.

Priority Commercial Response

A chiller failure affects your entire building. We prioritize commercial calls and dispatch experienced technicians quickly — minimizing downtime for your tenants, employees, and operations.

Detailed Service Documentation

Every service visit is fully documented with a written report — important for building management records, warranty compliance, insurance, and year-over-year performance tracking of your chiller system.

Where We Serve

Commercial Chiller Service Across Long Island, NY

Serving commercial properties across Nassau and Suffolk Counties. Call us to discuss your building's chiller system and service needs.

Get in Touch

Need Chiller Service on Long Island? Call All Seasons.

Whether you need an emergency repair, a seasonal startup, or a long-term preventive maintenance contract — All Seasons is Long Island's commercial HVAC contractor for chiller systems of all types and sizes.

All Chiller Types
Service Contracts
Licensed & Insured
58 Years on Long Island