A&I Mechanical Service Inc-Logo

Proudly Serving Long Island

Residential, Commercial, Industrial Plumbing, Electrical, and HVAC Services in Freeport, NY

24/7 Emergency Services

One-Year Workmanship Warranties

Service as Fast as Same Business Day

For Immediate Service, Call (516) 217-6441
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Expert Commercial HVAC Service

Our team of professionals are well-versed in all aspects of HVAC services. We ensure your heating and cooling systems are running efficiently, providing you with a comfortable and safe environment. Our decades of expertise have made us the source for commercial HVAC in Mineola, NY and surrounding areas!

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Comprehensive Plumbing Solutions

From minor leaks to major installations, our licensed master plumbers can handle it all. We provide reliable, efficient, and professional plumbing solutions that stand the test of time.

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Electrical Services You Can Trust

Our licensed master electricians are equipped to handle a wide range of electrical issues. We ensure your electrical systems are safe and up to code, providing peace of mind.

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Backflow Prevention and Testing

We provide backflow prevention and testing services to protect your water supply from contamination. Our certified professionals ensure your systems are compliant with local regulations.

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Why Choose Us?

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Choosing one of our professional companies means choosing a legacy of excellence. Our long-standing reputation, built over decades of dedicated service, sets us apart. We're not just a business; we're part of the community. 


We take pride in our 24/7 emergency services, ensuring we're always there when you need us most. Our same-day service and one-year workmanship warranty reflect our commitment to customer satisfaction. With us, you're not just getting a service; you're joining a family that puts your needs first. Our dedication has made us known for commercial HVAC Nassau County, NY can depend on.

24/7 Emergency Services

One-Year Workmanship Warranties

Service as Fast as Same Business Day

Licensed Master Plumbers

Licensed Master Electricians

Family-Owned Business Since 1954

Experience the Difference With Us

A&I Mechanical Service Inc is a fourth-generation family-owned business that has been serving the Long Island, NY, community since 1954. We specialize in providing comprehensive heating and air services with a strong emphasis on customer satisfaction. Our team of licensed master plumbers and electricians are always ready to deliver top-tier services, ensuring your home or business is comfortable and safe. We are certified contractors for gas piping with National Grid, a testament to our commitment to quality and safety.

In addition to our heating and air services, we offer plumbing, heating, and electrical work under one roof, making us a one-stop shop for all your mechanical service needs. Our 24/7 emergency services and same business day service ensure we're always there when you need us. Plus, we stand by our work with a one-year workmanship warranty. Whether you need comprehensive heating and cooling services for your business or a simple repair for your home electrical system, we are here for you. Request a service today to get started and learn why we've been the first choice for commercial HVAC in Nassau County, NY for decades!

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

At A&I Mechanical Service Inc, we take pride in providing exceptional HVAC and plumbing services to our customers. We would be grateful if you could share your thoughts about our licensed plumbers and electricians with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of A&I Mechanical Service Inc and let others know what you think.

Learn More About A&I Mechanical Service Inc

Serving the Long Island, NY area, we specializes in HVAC, plumbing, and electrical services. Service as fast as same business day. One-year workmanship warranties. 24/7 emergency services. Call us today.

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