AC Maintenance Services for Suffolk County Businesses and Homes

Stay ahead of costly breakdowns with professional HVAC maintenance. We provide scheduled tune-ups and custom AC service plans for commercial and residential systems.

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AC Maintenance Services

Preventive Maintenance That Keeps You Cool and Operational

Routine AC maintenance is the key to avoiding breakdowns, reducing energy bills, and extending the life of your system. At Temperature Control Systems, we offer full-service AC maintenance for commercial properties and residential homes across Suffolk County.

Whether you manage a restaurant in Ronkonkoma or want to prep your central air for summer in East Islip, our technicians deliver expert inspections, cleanings, and performance checks to keep your system running at its best, before problems start.

Maintenance for All Types of AC Systems

Our team is trained to maintain a wide variety of air conditioning systems, including commercial and high-efficiency residential units. We follow manufacturer guidelines and provide thorough reports after every visit.

  • Rooftop AC Units

  • Split & Packaged Systems

  • Ductless Mini Splits

  • Central Air Systems

  • Energy-Efficient Cooling Units

  • Server Room/IT Cooling Systems

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Maintenance Visits In Suffolk County
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Our Services

Commercial Refrigeration

Keep your walk-ins, reach-ins, and display cases running 24/7. We service restaurants, delis, and grocery stores across Suffolk County with emergency repairs and preventative maintenance to protect your inventory.

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Air Conditioning Installation

New construction or replacing that 20-year-old unit that’s barely keeping up? We size systems properly (most companies don’t), handle all permits, and get your AC running right the first time.

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Furnace Installation

Installing new furnaces across Suffolk County for over 25 years. Gas, oil, or electric – we measure your house properly, size the system right, and complete most installs in 6-8 hours with minimal disruption.

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Heat Pump Installation

Heat pumps are getting crazy popular because one unit does heating AND cooling. Way more efficient than old oil furnaces, and your electric bills drop like crazy. We install them right so they work in our Long Island winters.

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Air Conditioning Repair

Your AC died in the middle of July? We get it – happens to everyone. Our trucks are stocked with parts for most major brands, so we usually fix it on the first visit without the “I’ll have to order that” runaround.

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Emergency Heating

Heat died at 2AM when its 15 degrees outside? We answer our phones 24/7 and keep emergency trucks ready because heating problems don’t wait for business hours. Usually there within 90 minutes.

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Boiler Installation

Radiant heat is incredible when it works right. We install high-efficiency boilers for homes and commercial buildings, handle all the zone controls, and make sure every room gets the heat it needs.

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Commercial HVAC Installation

King Kullen, medical buildings, warehouses – we handle commercial installs that need permits, crane rentals, and weekend work so we don’t disrupt your business. Rooftop units, split systems, whatever you need.

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Air Conditioning Maintenance

A $129 spring tune-up prevents a $4,000 emergency replacement in August. We clean coils, check refrigerant levels, test electrical connections, and catch small problems before they become expensive ones.

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Furnace Repair

Weird noises coming from the basement? Heating bills climbing for no reason? We diagnose and fix gas, oil, and electric furnaces fast. Most repairs done same-day with our fully-stocked service trucks.

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Boiler Repair

Leaking boiler? No heat in half the house? Pressure issues? We work on all boiler types and actually understand hydronic systems. Most techs don’t – we’ve been doing this since 1999.

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Commercial Heating

Retail stores, restaurants, office buildings – when your commercial heat goes down, you lose money fast. We service and install commercial heating systems throughout Suffolk County with minimal downtime and proper maintenance scheduling.

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Air Filters

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Evaporator and Condenser Coils

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Fan Blades and Motors

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Condensate Drain Lines

ductwork

Ductwork

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Grilles and Registers

refrigerant-lines

Refrigerant Lines

outdoor-indoor-units

Outdoor & Indoor Units

thermostat

Thermostat

refrigerant-leaks

Refrigerant Leaks

compressor-issues

Compressor Issues

fan-motor-problems

Fan Motor Problems

thermostat-malfunctions

Thermostat Malfunctions

blower-motor-issues

Blower Motor Issues

capacitor-failures

Capacitor Failures

electrical-problems

Electrical Problems

condenser-coil-problems

Condenser Coil Problems

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Evaporator Coil Issues

expansion-valve-problems

Expansion Valve Problems

ductwork-issues

Ductwork Issues

heat-exchanger-problems

Heat Exchanger Problems

water-leaks

Water Leaks

control-board-issues

Control Board Issues

airflow-problems

Airflow Problems

Trusted by Suffolk County for Preventive HVAC Care

They check our rooftop units every spring and fall, no surprises, no shutdowns.
Eric V
Smithtown, NY
They’re the only ones we trust for regular maintenance on our home system. Always honest.
Kendra R
Medford, NY
Signed a service contract with them last year. Saved us a major repair this summer.
Peter G
Patchogue, NY

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.

Frequently Asked Questions About AC Maintenance

Want to know how often to schedule service or what’s included in a tune-up? Here are common questions from Suffolk County businesses and homeowners.

We recommend twice a year, typically spring and fall, for both commercial and residential systems.

We inspect electrical components, refrigerant levels, filters, coils, thermostats, and system performance.

Yes. We offer flexible contracts that include quarterly or seasonal maintenance for businesses.

Absolutely. Regular inspections help us catch minor issues before they cause major failures.

Yes, we service all major AC brands including Carrier, Trane, Lennox, Mitsubishi, Goodman, and more.