24/7 Emergency Service
216 East Montauk Highway, Hampton Bays, NY 11946
License #:   36162-MP   |   38242-ME
Heating Solutions
We Install the Best & Fix the Rest!

Gas Heating, Gas Boiler Repair & Replacement, Furnace Repair, Heat Pump Repair & Replacement For East Hampton, Hampton Bays, Hamptons, Riverhead, Sag Harbor, Southampton, Westhampton, and the Surrounding Areas

The Comfort of Knowing Weber & Grahn

W&G Service offers a full complement of gas heating services including gas furnace repair and replacement, gas boiler repair and replacement and gas conversions. As Warranty Service Providers for numerous name-brand manufacturers, we have extensive experience in installing, repairing and maintaining a wide variety of gas heating equipment. With over 50 years of helping clients throughout the east end of Long Island, you can count on W&G Service for all your gas heating needs.

Refrigeration in Westhampton, Smithtown, Hamptons, Southampton, Islip
Furnaces in Islip, Riverhead, Smithtown, Sag Harbor, Southampton, NY and Surrounding Areas

Gas Furnace Repair & Replacement

With a fleet of service vans fully stocked with the most commonly-needed parts, we’re prepared to deliver the outstanding service that’s earned W&G a reputation for being the ‘gold standard’ in furnace repair. We know that whether it’s scheduled routine maintenance or a system breakdown you want service sooner rather than later. Some breakdowns require an emergency response and we’re there with 24-hour emergency repair service, in addition to our regular service hours.

Seamless professional installation, reliability, and efficiency: these are the fundamental requirements every client should expect when having their furnace replaced. Weber & Grahn delivers on all counts, ensuring your new furnace provides years of comfort to you and your family throughout the coldest winters.

Furnace Installation & Service

Weber & Grahn Makes it Simple

From the furnace to any additions, such as a whole-house humidifier, high-efficiency air cleaner, electronic thermostat or any other comfort and convenience accessories, the professional NATE certified technicians at Weber & Grahn have the training and experience they will provide seamless installation for virtually any application.

We hold Suffolk County Master Plumber and Master Electrician licenses to ensure every facet of your installation is meticulously handled. And you can rest assured our conscientious crew will leave your home looking as pristine as it was before we arrived.

You’ll enjoy the peace of mind that comes with knowing the same professional treatment you received during your furnace replacement process is provided when it comes to ongoing service. Whether we’re performing a system inspection as part of your maintenance agreement or any other type of service; Weber & Grahn maintains the same unwavering commitment to excellence when it comes to serving our customers year after year.

Furnaces in Islip, Smithtown, Riverhead, Westhampton, Southampton, Hamptons,


When an emergency occurs our techs are ready at a moment’s notice, as we maintain a fleet of computerized service vans stocked with the most commonly needed parts.

Gas Boiler Repair & Replacement

Whether you have a boiler failure or simply need a tune-up, we bring over 50 years of experience to every job we tackle. Our skilled technicians provide comprehensive boiler repair services that include zone valve checks, carbon monoxide testing, operational safety checks, boiler piping, diagnostics, thermostat calibration, gas burner and heat exchanger tune-ups and virtually any type of inspection or part replacement that is required to make your boiler operate in its top condition.

When repair is no longer a viable option to maintain the performance and efficiency of your boiler, the experts at Weber & Grahn can provide the replacement you need with the quality service you deserve. As with any purchase you make from Weber & Grahn, we’ll take the time to share with you the criteria used to determine what boiler is best for you based on our findings, but we will always help you find the best Boiler for your home.

Boilers in Islip, Hampton Bays, Sag Harbor, Southampton & Surrounding Areas

Gas Conversion

Natural Gas: A Safe, Dependable & American Made Resource

More and more homes are converting to Natural Gas for a variety of reasons.  While you can save up to 60% on your energy costs each year, savings is only one of the advantages.  From the convenience of having a fuel for your heating system that doesn’t require refilling to the instant and infinite adjustability of a gas range, natural gas offers a plethora of benefits over other fuel sources.

As in every service provided by Weber & Grahn, we handle all your conversion-required equipment installations with the kind of uncompromising excellence that has earned us a reputation as being the Gold Standard of HVAC.

Heat Pumps

Heat Pump Installation, Repair, and Replacement by Weber & Grahn

Weber & Grahn deliver the same level of professional service in the repair and maintenance of Heat Pumps as customers throughout Southampton and Hampton Bays have come to expect in every service we provide. Certified Technicians bring a level of expertise to each and every job.

For certain system installations, heat pumps can play an integral part in creating a comfortable, controllable temperature environment in a home. 

Benefits of a Heat Pump

Despite their name, Heat Pumps can also effectively cool a home, but that’s just one of the many benefits of using a heat pump. 

Geothermal in Riverhead, Southampton, Smithtown, Islip, Hamptons, NY and Nearby Cities

Hot Water Heaters & Tanks

We Install the Best & Fix the Rest!

Weber & Grahn can handle all your gas hot water heater needs, providing expert service and installation. Whether you find yourself dealing with a leak or your hot water simply isn’t hot, our certified technicians have the training and experience to make sure you’re never out of hot water.

Weber & Grahn services and installs Gas Hot Water Heaters manufactured by both A.O. Smith and Bradford White.

Weber & Grahn can help you select the system that’s best suited for your family’s hot water needs and, as in everything we do, our installation and ongoing service is unparalleled. We’ve been keeping customers comfortable throughout Southampton, Hampton Bays, Smithtown and surrounding areas for more than 50 years.

Weber & Grahn services and installs Hot Water Tanks manufactured by both Super Store and Phase III.

Weber & Grahn is a Warranty Service Provider and Installer for:

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!