HVAC & Refrigeration Services Across Suffolk County, NY
Serving over 40 towns and villages across Long Island since 1999 with fast, expert HVAC and refrigeration service for businesses and homeowners.
Commercial HVAC Service Areas
Your Suffolk County HVAC & Refrigeration Experts
For over 25 years, Temperature Control Systems has been trusted by Long Island businesses and homeowners for fast, reliable HVAC and commercial refrigeration services. Whether you’re managing a retail space in Patchogue, running a restaurant in Sayville, or scheduling maintenance for a warehouse in Ronkonkoma, our team gets the job done right, the first time.
We specialize in:
Heating and Cooling Services
Trusted for Commercial & Residential Services Throughout Suffolk County
Every service area includes:
Air Conditioning Services → installs, maintenance, emergency repair
Heating Solutions → furnaces, rooftop units, emergency support
Commercial Refrigeration → walk-ins, freezers, compliance work
Emergency HVAC Services → 24/7 response
Maintenance Contracts for seasonal performance
Our Service Areas
We’ve been servicing HVAC systems across Suffolk County for over 25 years. Our trucks are on the road every day from Huntington to Montauk, and we know Long Island homes inside and out. If you’re in Suffolk County, we’re already in your neighborhood.
We handle calls daily from Ronkonkoma to Huntington and everywhere in between. Our trucks run the LIE, Sunrise Highway, and Route 347 every day, so we’re never far from your door. Most calls get a technician on site within 90 minutes.
From Babylon and Islip along the South Shore to Smithtown and Brookhaven on the North Shore, we cover all of Suffolk County. Restaurants, warehouses, office buildings, and homes all get the same fast, professional service.
Our team serves Patchogue, Sayville, and East Islip with commercial HVAC, commercial refrigeration, and residential heating and cooling. Whether it’s a walk-in cooler at a deli or a furnace in a split-level, we’ve seen it and fixed it.
Selden and the surrounding communities have been part of our service area since 1999. We handle emergency heating repair, AC installation, boiler repair, and 24/7 emergency refrigeration service for businesses that can’t afford downtime.
Documentation
Evaporator and Condenser Coils
Fan Blades and Motors
Condensate Drain Lines
Ductwork
Grilles and Registers
Refrigerant Lines
Outdoor & Indoor Units
Thermostat
Refrigerant Leaks
Compressor Issues
Fan Motor Problems
Thermostat Malfunctions
Blower Motor Issues
Capacitor Failures
Electrical Problems
Condenser Coil Problems
Evaporator Coil Issues
Expansion Valve Problems
Ductwork Issues
Heat Exchanger Problems
Water Leaks
Control Board Issues
Airflow Problems
Customers reviews
HVAC Service Areas FAQ
We serve all of Suffolk County and parts of Nassau County. Our trucks cover towns from Huntington to Montauk daily, including Ronkonkoma, Patchogue, Smithtown, Babylon, Islip, Brookhaven, Selden, Sayville, and East Islip.
Most calls get a technician on site within 90 minutes. We keep trucks on the road across Suffolk County every day, and our 24/7 emergency service means we respond nights, weekends, and holidays.
Yes. Every area we serve gets the full range of commercial HVAC, commercial refrigeration, residential heating and cooling, and emergency repair services. There’s no reduced service based on location.
No. We don’t add travel fees for anywhere in Suffolk County. The price you’re quoted is the price you pay, whether you’re in Huntington or Patchogue.
Yes. We run maintenance contracts for businesses and homeowners across all of Suffolk County. Our scheduling system routes technicians by area, so your location doesn’t affect appointment availability.