About GMG HVAC Inc.

GMG HVAC Inc. provides professional and courteous service at a reasonable price. The knowledgeable team, led by a friendly and experienced expert, ensures that customers' needs are understood and problems are fixed correctly. They communicate well, clean up after themselves, and pay attention to details, making them a reliable choice for HVAC repairs. Customers praise the company's efficiency, professionalism, and respect for their homes. The technicians, Andrew and Joe, are highly skilled and knowledgeable, whether installing a new system or finding and fixing an issue. Clients are impressed with the quick and effective service, and would gladly recommend GMG HVAC Inc. to friends and family.

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Reviews for GMG HVAC Inc.

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  • Feb 2026

    Hands down the best of the best West Islip Suffolk County on the coldest days of the year I continuously lose my heat lol and they have always shown up and done my repairs immediately with care concern and cleanliness. I would recommend GMG 1000 times over.

  • Apr 2025

    Extremely professional and knowledgeable. Came on time and did a fantastic job. Andrew and his team were great; very polite and very respectful of our home. I highly recommend this company.

  • Mar 2025

    From beginning to end the whole process of them setting up the appt until they fixed my heat was very quick and efficient. The technician Joesph and his helper who came and fixed the problem was very knowledgeable and quick to assess & get our system back up and running. Pretty impressed! Would be happy to recommend them to friends and family, and will gladly use them again for future services and maintenance! Thank you again for keeping us warm!!

Hours

Monday: Open 24 hoursTuesday: Open 24 hoursWednesday: Open 24 hoursThursday: Open 24 hoursFriday: Open 24 hoursSaturday: Open 24 hoursSunday: Open 24 hours

Tips

accepts credit cards

Location

77 Windsor Pl Suite 11, Central Islip

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