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Heating and Cooling Services

Nassau and Suffolk Counties, NY

Emergency Services Available

Free Second Opinions

Financing Options

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Expert HVAC Solutions for Long Island

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.

Why Choose GMG HVAC Inc.

Emergency Services Available

Free Second Opinions

Great Financing Options

Award-Winning HVAC Service

Discounts Offered

Licensed and Insured

GMG HVAC Inc
Black icon of a radiator with rising heat lines, indicating warmth.

Heating Services

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.

Black icon of an air conditioner, emitting wavy lines indicating cool air.

Air Conditioning Services

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.

Black and white icon of a computer power supply with a fan.

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.

House icon with check mark, three wavy lines below roof.

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.

Black and white device with a screen displaying a water droplet and lines, possibly a moisture meter.

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.

HVAC system icon: fan, flame, snowflake.

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.

Reliable HVAC Services From GMG HVAC Inc

At GMG HVAC Inc, we understand how important it is to keep homes and businesses comfortable throughout every season. Heating and cooling systems play a vital role in everyday life, and when something goes wrong, it can quickly disrupt a routine. That is why we provide dependable HVAC services tailored to the needs of our local communities. From heating repairs to cooling installations and routine maintenance, our focus is always on delivering lasting comfort and quality service to our customers.


Serving Our Communities

We proudly serve several areas in New York, offering reliable solutions that residents and businesses have relied on for years. Many homeowners count on us when they need furnace repair in Bay Shore, NY. The winters in this region can be demanding, and a dependable furnace is crucial for keeping families warm. When we are called for service, we provide quick and effective solutions that restore comfort and prevent larger issues from developing.


We also work closely with property owners who require furnace repair in Brightwaters, NY. Our presence in this area has grown because of the reliable service we provide. We know how important it is to have a heating system that works when the temperatures drop, and we take every repair seriously. Customers appreciate our dedication and the peace of mind that comes from knowing their heating systems are in capable hands.


Full Range of HVAC Services

Although heating is an essential part of what we do, our services go well beyond furnace repairs. We provide a complete range of HVAC solutions designed to keep systems running at peak performance. Our offerings include:


  • Heating system repairs and installations
  • Cooling system repairs and installations
  • Routine HVAC maintenance
  • Indoor air quality solutions
  • Emergency HVAC services


This variety allows us to support customers in every season. Whether it is furnace repair in Bay Shore, NY during the winter or cooling assistance during the summer, we are always ready to respond with professional service.

Why Customers Rely on GMG HVAC Inc

We believe our reputation is built on reliability, and that reliability comes from consistently delivering results. When homeowners call us for furnace repair in Brightwaters, NY, they know we will arrive on time, assess the problem carefully, and offer honest recommendations. We never pressure customers into unnecessary services; instead, we focus on what is needed to restore comfort quickly and effectively.



The same commitment applies to furnace repair in Bay Shore, NY. Families in this area often turn to us because they have experienced our attention to detail and dependable workmanship. We understand that a heating issue can be stressful, so we make the process as smooth as possible. By explaining the repairs clearly and completing the work efficiently, we give our customers confidence in their HVAC systems.


Commitment to Quality and Comfort

Every service we provide is rooted in a commitment to quality. Heating and cooling systems are major investments, and they deserve professional care. When we perform furnace repair in Brightwaters, NY, we use high-quality parts and proven methods to restore systems. Our technicians take the time to get the job done right the first time, preventing recurring issues and extending the life of the equipment.


That same level of care is applied when we handle furnace repair in Bay Shore, NY. We know how much families depend on their heating systems, and we take that responsibility seriously. Every repair is treated as an opportunity to improve comfort, efficiency, and reliability. Customers rely on us because they see the effort we put into every project.


Supporting Local Needs

Our service is more than just HVAC work; it is about supporting the communities we serve. When we provide furnace repair in Brightwaters, NY, we know we are helping neighbors who rely on us. That connection to the community motivates us to go above and beyond in every job.


We feel the same way when we complete furnace repair in Bay Shore, NY.


Why Choose GMG HVAC Inc

Choosing the right HVAC company means finding one that values professionalism, honesty, and customer satisfaction. At GMG HVAC Inc, we are proud to embody those qualities. We do not simply do furnace repair in Brightwaters, NY; we provide peace of mind and long-term comfort for every customer.


When people reach out for furnace repair in Brightwaters, NY, they know they can rely on us for clear communication, dependable service, and lasting results. The same is true for furnace repair in Bay Shore, NY, where families and businesses have relied on us for years.

Veterans Save 5%!

GMG HVAC Inc proudly offers a 5% discount to all veterans on our heating and air services.

Call GMG HVAC now to claim your veteran's discount!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
(631) 268-4892

Seniors Save 5%!

GMG HVAC Inc offers a 5% discount to all senior citizens on our heating and cooling services.

Contact GMG HVAC today for your senior discount!

Not valid with any other offers or promotions. Restrictions apply. Must mention this coupon at the time of scheduling.
(631) 268-4892

Here's what our satisfied customers are saying...

At GMG HVAC Inc., we take pride in providing exceptional heating and cooling services to our customers. We would be grateful if you could share your thoughts about our HVAC solutions with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of GMG HVAC Inc. and let others know what you think.