Ductless Mini-Split AC Services in Long Island
Quiet, Efficient Comfort For Hard To Cool Spaces
If you are tired of rooms that never feel quite right, a ductless mini-split system can give you targeted comfort without tearing into walls. Whether you need a brand new setup or help with a system that is not working, Stan Gelber & Sons, Inc. Heating and Cooling is here to help.
Our team designs and installs ductless systems that fit how you actually use your home or small business. For many customers, ductless is a smart way to cool and heat additions, upper floors, and areas where running new ductwork would be disruptive or expensive.
We also perform careful diagnostics and ductless mini-split repair. Our goal is to explain your options clearly, respect your space, and leave you with a system that runs the way it should.
Stay cool with reliable ductless mini-split AC installation and repair services in Long Island. Request a service online or call (631) 906-7431 for fast help.
Why Choose Our Team For Ductless Mini-Splits
When you invite an HVAC company into your home, you want people who understand your house, your climate, and your concerns. Our technicians work on ductless systems across Long Island, so they are familiar with older capes, colonials, and multi-family buildings that often lack traditional ducts.
We pay close attention to details that matter, such as where indoor units will look best on your walls, how noise will affect bedrooms, and how outdoor equipment will handle coastal humidity. This local knowledge helps us suggest systems and layouts that usually perform better over time.
Our team handles both mini-split installation and ongoing repair and maintenance. That means you work with one company from the first consultation through years of seasonal tune-ups, rather than starting over with a new provider every time something changes.
Signs Your Mini-Split Needs Repair
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LimitedTimeOffer!$0 HVAC diagnostic for Maintenance+ members
Valid for new and active Maintenance+ members. $0 diagnostic fee applies only when recommended repair is completed and paid at the time of service. Not valid at Service Experts Memphis, Service Experts Tulsa, Strogen’s Service Experts, Fras-Air Service Experts, Pine State Services, RB Travis Plumbing, Stan Gelber & Sons, Inc Heating & Cooling, or United Plumbing locations.
Promotion valid for service visits occurring 3/16/26 – 4/30/26. Cannot be combined with other offers. No cash value. Offer may be modified, suspended, or withdrawn at any time as permitted by law. Mar 16, 2026 - Apr 30, 2026 -
LimitedTimeOffer!Save $90 on an HVAC Precision Tune-Up. Regularly $189, now only $99
A well-maintained system operates more efficiently, reducing energy consumption and lowering heating and cooling bills
Offer not valid on prior purchases and may not be combined with other offers. Excludes oil furnaces; call for pricing. **Potential savings may vary depending on age and condition of equipment, personal lifestyle, system settings, equipment maintenance, and installation of equipment and duct system. -
10% Off Any Product or Service for Active Duty, Retired, and Veteran Military Personnel
It’s our way of thanking you for your courage, dedication, and sacrifice to protect our freedom. All work is performed by licensed experts and backed by our Service Experts Guarantee.
Offer not valid on prior purchases and may not be combined with other offers.
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Advantage Program Lease a New Top-Tier System with No Upfront CostsAdvantage Program Details -
Maintenance Plus Receive Seasonal Tune-ups, 15% Discount on Services, and More!See Membership Benefits -
Financing Options Convenient Options and Payment Plans AvailableAvailable with approved creditFinancing Options
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Packaged HVAC units are all-in-one HVAC systems that house an air handler and unit parts in one metal cabinet system. This is used to maximize space in a basement or garage, or on rooftops in multifamily buildings.
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Yes. Our Experts are just a short drive away to assist with a heat pump repair or replacement during an emergency.
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Heat pumps have a slightly reduced life span than furnaces do because they’re used all year, but with adequate, many heat pump systems last about 10-15 years.
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Many customers pay between $250 and $600 for a heat pump repair, but this is based on what the problem is when the HVAC technician arrives to determine the issue.
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HVAC tune-ups can often be covered in most cases under a labor warranty if your system is still under warranty, but we can check to see if tune-ups are covered. Through the Advantage Program™, key services such as heat pump maintenance are included! It’s one of the most comprehensive HVAC plans around.
Our Uniondale team is ready to take care of your home service needs—with fast service and expert services that you can always rely on.