24/7 Emergency Service
216 East Montauk Highway, Hampton Bays, NY 11946
License #:   36162-MP   |   38242-ME
Service Areas

We Install the Best & Fix the Rest!

Since 1968, Weber & Grahn Air Conditioning & Heating’s mission has been to create comfortable and clean indoor environments with the highest precision, professionalism, and integrity.

We install the right system each time – from a connoisseur’s precision wine system to an HVAC unit so perfectly engineered and installed you forget it’s there. And when it comes to service, depend on the technicians at Weber & Grahn Air Conditioning & Heating to bring you spot-on repair and maintenance. Our computerized service vans arrived with stocked parts for Carrier, Trane, Bryant, Lennox, York, Rheem, and Mitsubishi, along with many others.

Located in Hampton Bays, we service throughout the east end of Long Island, including the areas of Southampton, East Hampton, Riverhead, Smithtown, and many more.

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Give us a call to learn more about the services we provide in your area!

Hampton Bays




Why Choose Weber & Grahn?

At Weber & Grahn, we believe in providing a comfortable indoor environment for your family with precision, professionalism, and integrity.

We handle tasks like designing and installing HVAC systems for new construction, installing wine systems, and repairing existing systems. We aim for excellence in every job because our reputation relies on it. Your satisfaction is how we measure our success.


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The Comfort of Knowing

Weber & Grahn

Ready To Get Started?

If you need a new system installed or an existing unit serviced, call us today!