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about us

MJ HVAC is a valued solution towards your Heating, Ventilating & Air Conditioning Service needs or goals. With 20 years of industry knowledge this allows us to provide you with a pleasant experience and assured reliability. We all need a valued partner to provide a reliable product or solution. This is why we choose the best solution or technology to enhance the space comfort and environmental needs of the client. We look at very specific details for our customers because each client is different.  We provide knowledge and engineering solutions with a performance guarantee to meet and exceed expectations. We are transparent in our solutions and will only deliver the highest quality, repair, installation for a project and client. Know when you contact us we look at your HVAC needs as a solution.

Frequently asked questions

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MJ HVAC LLC

P.O. Box 1141

Bethpage, New York 11714

Email: engineeringspecservice@gmail.com

Phone: 347-735-6651

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Energy & system solutions solved

  Installation & repair for :

  • Air conditioning & heating systems

  • Automated controls

  • Boiler & pump systems

  • Sustainability & renewable energy systems

  • HVAC repair & replacement parts

  • HVAC new installation project programs

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© 2025  MJ HVAC LLC.  A veteran owned business. NATE ID 3188518

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