Heating and Cooling Services

GMG HVAC Inc is your trusted partner for all things heating and air conditioning in Nassau and Suffolk counties, NY. Since 2015, we've been delivering comfort to homes and businesses across Long Island with our comprehensive HVAC services. Our team brings two decades of experience to every job, ensuring your indoor environment stays perfect year-round. We are a proud sponsor of our local sports teams and won the Best of Long Island award in 2024, after being nominated the previous two years.

Give us a call today!

As a locally and family-owned business, we understand the unique climate challenges Long Islanders face. That's why we offer emergency services and strive for same-day availability when you need us most. We're not just about fixing problems; we're about creating long-term comfort solutions. From new home services to air quality improvements, we've got you covered. And with our discounts for seniors, veterans, and first responders, along with available financing options, we make quality HVAC services accessible to all.

When winter hits Long Island, you need a heating system you can rely on. GMG HVAC specializes in the installation, maintenance, and repair of various heating systems. We work with trusted brands like Tempstar to ensure your home stays warm and cozy, no matter how cold it gets outside.

Beat the summer heat with our expert air conditioning services. From routine maintenance to complete system overhauls, we keep your A/C running efficiently. We offer FREE estimates on system changeouts, helping you make informed decisions about your cooling system.

New Home Service

Building or moving into a new home? Our free new home service ensures your HVAC system is set up correctly from day one. We'll assess your needs, recommend the best solutions, and install systems that provide long-term comfort and efficiency.

Air Quality

Breathe easier with our air quality solutions. We offer a range of services and products designed to improve indoor air quality, removing allergens, pollutants, and other harmful particles from your home's air. Let us help you create a healthier living environment for you and your family.

Thermostat Systems

Upgrade to smart thermostats for better control and energy savings. We install and program advanced thermostat systems that allow you to manage your home's temperature with precision, even when you're away. Experience the convenience and efficiency of modern climate control technology.

FAQs from GMG HVAC Inc

Have a question about our heating and cooling solutions? You might find the information you're looking for on our FAQs page. If you don't, feel free to give us a call and a member of our friendly team will be happy to discuss your specific HVAC-related situation with you.