GMG HVAC INC.

Our licensed and certified technicians at GMG HVAC Inc. perform stellar heating, cooling, and indoor air quality services in Central Islip.

Our local and family-owned HVAC company at GMG HVAC Inc. performs unmatched heating, cooling, and indoor air quality services to residential and commercial properties in Central Islip and throughout Bethpage and surrounding areas. We are available when you need us most, offering both same-day appointments and after-hours emergency service by phone. Our fully licensed and insured company is committ

ed to leading the industry, utilizing the most advanced products on the market, so you can count on long-lasting and energy-efficient results. We provide free estimates on new installations and replacements, and work with you to find the right system for your specific needs.

08/28/2026

Is your furnace blowing cold air instead of heat? This common issue might be due to a malfunctioning thermostat, dirty filters, or a faulty pilot light. Our expert furnace repair service can help diagnose and fix the problem, ensuring your home stays warm and comfortable. Don't let a malfunctioning furnace disrupt your comfort. Visit our website or call us today to schedule a professional inspection.

https://www.gmghvac.com/faqs

08/13/2026

Is your furnace blowing cold air instead of heat? This common issue might be due to a malfunctioning thermostat, dirty filters, or a faulty pilot light. Our local furnace repair experts are here to help you identify and fix the problem efficiently. Don't let a chilly home disrupt your comfort. Contact us today for a professional inspection and restore warmth to your space. Visit our website or call us now to schedule your service!

https://www.gmghvac.com/faqs

07/31/2026

GMG HVAC INC. Voted Best of long for air conditioning companies for 2025 and 2026!!

But don't just take the award committee's word for it. Check out this recent 5-star review from another happy customer:
⭐⭐⭐⭐⭐
"Our AC wasn’t cooling. Compressor shut off. Circuit breaker tripping after 2nd attempt. Notified Andrew with GMG HVAC. He was here within the hour. He found the problem right away. Problem solved. Excellent service."
— Kevin

We are dedicated to providing the same fast, reliable, and award-winning service to all our neighbors. When you need expert A/C or heating help, trust the best!
Contact us today!
📞 Phone: 516-597-5232
🌐 Website: gmghvac.com
✉️ Email: [email protected]

07/29/2026

🏗️ Commercial Rooftop Unit (RTU) Experts🏗

Need heavy-duty heating or cooling for your commercial space? GMG HVAC INC. has you covered from lifting to installation! 🛠️⚡
Whether it’s a planned replacement or an urgent install, our experienced team ensures your business stays comfortable year-round with minimal downtime.
📞 Call Us: (516) 597-5232
🌐 Website: gmghvac.com
# LongIslandHVAC

07/28/2026

Is your furnace blowing cold air instead of heat? This common issue might be due to a malfunctioning thermostat, dirty filters, or a faulty pilot light. Our local furnace repair services can help diagnose and fix the problem to restore warmth to your home. Don't let these issues linger, as they can lead to more significant problems and higher energy bills. If your furnace is over 15 years old or frequently breaks down, it might be time to consider whether repair or replacement is the best option. Contact us today to schedule a professional inspection and ensure your heating system is running efficiently. Visit our website or call us now for more information.

https://www.gmghvac.com/faqs

07/23/2026

A/C out at work? Don't sweat it. 🌡️➡️🧊

Waiting on major HVAC repairs can take days—or even weeks. Don't send your team home or compromise your business. GMG HVAC Inc. provides temporary spot cooling and heating to bridge the gap and keep your commercial space at the perfect temperature.
Quick service when you need it most!

☎️ (516) 597-5232
🌐 gmghvac.com/contact
✉️ [email protected]

07/14/2026

Is your heating system not performing as it should? Our furnace repair service is here to ensure your home stays warm and energy-efficient. Regular maintenance can significantly improve the efficiency of your HVAC system, saving you money and keeping your home comfortable. Don't wait until it's too late; learn how to spot the signs that it's time for a repair. Trust our experienced team to provide safe and effective heating solutions tailored to your needs. Visit our website or call us today to schedule your service.

https://www.gmghvac.com/

06/30/2026

Is your heating system not performing as it should? Our local furnace repair services are here to ensure your home stays warm and energy-efficient. Regular maintenance can significantly improve your system's efficiency, saving you money in the long run. Don't wait until it's too late, learn the signs that indicate it's time for a repair. Our experienced team is ready to provide you with safe and effective solutions tailored to your needs. Visit our website or call us today to schedule your service and keep your home comfortable all year round.

https://www.gmghvac.com/

06/21/2026

Is your heating system not performing as it should? Our local furnace repair services are here to ensure your home stays warm and energy-efficient. Regular maintenance can significantly improve your system's efficiency and prevent costly breakdowns. Don't wait until it's too late to address potential issues. Our experienced team is ready to help you identify the signs that it's time for a repair. From improving energy efficiency to ensuring safe operation, we provide comprehensive solutions tailored to your needs. Visit our website or call us today to schedule your service and keep your home comfortable all year round.

https://www.gmghvac.com/

06/17/2026

Happy Father's Day from GMG HVAC INC.!

This Father's Day, give the gift of cool and comfy air with $200 off any ductless mini-split installation from GMG HVAC INC.!

Ductless systems are the perfect way to cool specific rooms in your home, save energy, and keep your family comfortable all summer long. They're easy to install and can even be used for heating in the winter.

Why choose GMG HVAC?
Voted Best HVAC Company on Long Island for 2025 & 2026! 🏆
Expert service and installation
Financing available
PSE&G rebates available
24/7 emergency service

Don't miss out on this limited-time offer! Call us today at (516) 597-5232 or go to www.gmghvac.com to schedule your free estimate and save $200!

Address

1218 Hyman Avenue
Bay Shore, NY
11706

Telephone

+16313092535

Website

https://www.gmghvac.com/contact/

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