Professional HVAC & Mechanical Services

 Elite Solutions for Every Space.

At Elite Comfort Group, we understand that no two buildings are the same. From the high-hardness water issues common in Long Island to the humid summers and freezing winters, our services are designed to address local challenges. We offer a full spectrum of mechanical services including installation, maintenance, and complex repairs. Our goal is to maximize your system’s efficiency while lowering your utility costs. We are your one-stop shop for residential and commercial comfort.

Three people walk away from the camera down a narrow, sunlit street between buildings, carrying bags and a red bucket.

Comprehensive HVAC & Mechanical Services.

Whether you need a precision furnace repair, a high-efficiency AC installation, or specialized indoor air quality solutions, our team handles it all. We specialize in both residential and commercial mechanical systems with a focus on longevity and efficiency.

Heating System Installation & Replacement 

When your heating system is aging, inefficient, or beyond repair, we handle the full replacement process — from equipment selection to a clean, code-compliant install. We work with all major brands and system types. 

Preventive Maintenance 

The best service call is the one you never have to make. Our maintenance programs keep residential and commercial systems running at peak performance, extend equipment life, and catch problems before they become expensive failures. 

Heating Repair & Troubleshooting 

No heat when you need it most is not an option. Our technicians diagnose and repair heating system failures fast — with the skills to back it up and the parts to get it done right. 

Ductwork Installation, Repair & Sealing 

Leaky or poorly designed ductwork wastes energy and kills comfort. We install, repair, and seal duct systems to maximize efficiency and airflow throughout your home or building. 


Cooling System Installation & Replacement 

From central air to high-efficiency systems, we design and install cooling solutions built for Long Island summers. Every installation is sized correctly, installed clean, and backed by our workmanship warranty. 

Indoor Air Quality Solutions

Filtration, UV systems, ventilation — we help you breathe cleaner air inside your home or facility. Especially important in tightly sealed modern construction.

Air Conditioning Repair & Troubleshooting 

Warm air, short cycling, or a system that won't turn on — we find the problem and fix it. No guesswork, no upselling parts you don't need. 




Humidification & Dehumidification Systems 

Long Island humidity is no joke. We install and service whole-home and commercial humidification and dehumidification systems that protect your structure, your equipment, and your comfort. 

Ductless Mini-Split Installation & Service 

Flexible, efficient, and ideal for additions, older homes, or zone-controlled spaces. We install and service all major ductless brands with precision. 



Heat Pump Installation & Service 

Heat pumps are the future of efficient heating and cooling. We install and service cold-climate heat pumps designed to perform through Long Island winters. 



New Construction HVAC 

We work with builders and developers from the ground up — designing and installing HVAC systems that meet code, perform efficiently, and last. Emergency Service When something fails and you can't wait, we're available. Our team is equipped and ready to respond when it matters most.

Ventilation & Exhaust Fan Service 

Proper ventilation protects air quality and prevents moisture damage. We service, repair, and install exhaust fans and ventilation systems for residential and commercial applications. 

Rooftop Unit (RTU) Service & Replacement

Commercial rooftop units require experience, the right equipment, and attention to detail. We handle RTU maintenance, repair, and full replacement for commercial clients across Long Island. 

Energy Recovery Ventilator (ERV)

Service ERVs bring fresh air in without sacrificing energy efficiency. We service and maintain ERV systems to keep them operating at spec. 



Commercial HVAC Service Agreements 

Protect your business, your tenants, and your equipment with a structured preventive maintenance agreement. We offer customized commercial PM programs built around your equipment inventory and operational needs. 

Boiler Service, Repair & Replacement 

Hydronic heating systems demand specific expertise. We service, repair, and replace residential and commercial boilers — including complex diagnostic work other companies pass on. 

Water Filtration & Treatment Systems 

Clean water matters. We install and service whole-home and point-of-use water filtration systems — including solutions for the high-hardness well water common across Long Island.