Trusted AC Installation Experts Since 1999
We design and install reliable, energy-efficient cooling systems for commercial and residential buildings, from rooftop units to central air.
AC Installation Services
Custom AC Installations Built for Performance and Longevity
Whether you’re upgrading an outdated system or outfitting a brand-new building, Temperature Control Systems delivers expert AC installation tailored to your needs. We specialize in high-efficiency commercial cooling systems across Suffolk County, with residential installs available for homeowners.
Our team handles every step, from system design and load calculations to equipment selection and final commissioning. We install rooftop units, ductless systems, and central air with long-term efficiency and reliability in mind.
AC Systems We Install for Commercial & Residential Clients
With over 25 years of experience and 6,000+ completed projects, we’ve installed every major AC system used in retail stores, restaurants, office buildings, homes, and more.
Rooftop Packaged Units
Split & Ductless Mini Splits
Central Air Systems
Multi-Zone Cooling Systems
VRF/VRV Systems
Server Room/IT Cooling
Residential Energy-Efficient Systems
Air Filters
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
AC Installations Our Customers Rely On
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.
Ronkonkoma is our home base and has been since 1999. We install central air, ductless systems, and commercial rooftop units for homes and businesses right here in the community. Islip, East Islip, and Central Islip are just down the road, and we handle AC installations for residential and commercial properties throughout the area.
Our trucks are in Huntington and Huntington Station regularly, handling everything from full system replacements in older homes to new commercial installs. We cover Babylon, West Babylon, and North Babylon too, sizing and installing AC systems for homeowners and local businesses year-round.
From rooftop unit installs for restaurants to central air replacements in ranch-style homes, we service the greater Patchogue area daily. Brookhaven Town gets the same coverage, with full AC installation for both residential and commercial properties across the township.
Smithtown families and businesses trust us for AC installations done right the first time. Free estimates on all systems, and most residential installs are completed in a single day.
Frequently Asked Questions About AC Installation
Need help choosing the right system? Wondering how long installs take? Here are the top AC installation questions we hear across Suffolk County.
We install AC systems in retail stores, office buildings, warehouses, medical facilities, restaurants, and residential homes across Suffolk County. We handle everything from single-zone ductless installs in a home office to multi-unit rooftop packages for commercial buildings.
Yes. We run Manual J load calculations on every project to make sure the system is sized correctly for your space. An oversized system wastes energy and short-cycles. An undersized one runs nonstop and never keeps up. We get it right the first time so you’re not paying for someone else’s mistake.
Yes. We handle full system replacements and upgrades for both commercial and residential properties. Most residential swaps are done in a single day. For commercial jobs, we schedule off-hours and weekend work to keep your business running during the install.
Most residential AC installations are completed in one day, start to finish. Commercial installs depend on the system type and building requirements. A single rooftop unit swap might take a day. A full multi-zone system for a new restaurant or medical office could take 3 to 5 days including ductwork, electrical, and commissioning.
We install all major AC brands including Carrier, Trane, Lennox, Goodman, Mitsubishi, Daikin, York, and Rheem. We’re not locked into one manufacturer, so we recommend the best system for your space and budget rather than pushing whatever earns us the biggest margin.