Ductless Mini Split AC Installation & Repair

Ductless mini split systems are one of the most popular HVAC solutions in New York City, and for good reason. They provide both heating and cooling without requiring ductwork, making them ideal for NYC apartments, brownstones, and older buildings where installing traditional ductwork is impractical or impossible.

How Mini Splits Work

A ductless mini split system consists of an outdoor condenser unit connected to one or more indoor air handling units via a small conduit. Each indoor unit serves a specific zone and can be controlled independently, giving you precise temperature control room by room. The conduit only requires a 3-inch hole through the wall, making installation minimally invasive.

Ideal Applications in NYC

Pre-war apartments and co-ops — where ductwork cannot be added without major renovation
Brownstone conversions — provide AC to individual units without shared systems
Home additions and renovations — add cooling to new spaces without extending existing ductwork
Server rooms and home offices — dedicated climate control for temperature-sensitive spaces
Replacing window units — a quieter, more efficient, and more secure alternative

Benefits of Ductless Mini Splits

Energy efficient — mini splits use up to 30% less energy than window units because there's no duct loss
Zone control — set different temperatures for different rooms based on use and preference
Quiet operation — indoor units run at whisper-quiet levels (as low as 19 dB)
Year-round comfort — most mini split systems provide both cooling and heating via heat pump technology
Improved air quality — built-in filtration removes dust, allergens, and bacteria

Installation & Cost

While the upfront cost of a mini split system is higher than a window unit, the energy savings, longevity (15-20 year lifespan), and improved comfort make it a smart long-term investment. Karl's provides free estimates and can recommend the right system size based on your space. We carry all major brands including Mitsubishi, Carrier, and Fujitsu.

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In Business for Over 90 Years

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Ductless Mini Split AC