Quiet, zone-by-zone comfort
Ductless Mini-Split Installation in Jericho, NY
Jericho's larger colonials and expanded splits create the classic mini-split scenario: one or two rooms that the central system was never designed to reach. A converted garage, a sunroom addition off the back, a primary suite over an unconditioned space, or a finished attic office — extending ductwork to any of them costs more than a ductless head and performs worse.
A single-zone install in Jericho typically runs $4,200–$7,500 depending on head type and line-set routing; multi-zone systems of two to four heads generally land between $9,500 and $19,000. We size each head to the room's calculated load, because an oversized head short-cycles and leaves the room humid.
Common problems — with real prices
Additions the ducts never reached
One head, one zone, no trunk-line surgery — and the rest of the house keeps its existing balance.
Finished attics and bonus rooms
Attic offices swing 15 degrees on a summer afternoon. A properly sized head holds setpoint without overcooling the floor below.
Primary suites that need their own control
Separate zone, separate thermostat, and a whisper-quiet indoor unit that doesn't wake the room at 2am.
Homes with no ductwork at all
Multi-zone outdoor units serve up to four or five heads, delivering cooling and heat-pump heating without any duct system.
Line-set and condensate routing done right
We plan the route before we drill — flush sleeves, proper pitch on the drain, and no line set stapled across the front of the house.
Local service notes for Jericho
Jericho coverage
ZIP 11753 — the streets off Jericho Turnpike and Broadway, the larger properties near Birchwood Park, and the blocks running toward Syosset and Old Westbury. About twelve minutes north of our Levittown shop.
Large, subdivided houses without duct paths
Jericho homes are generally big and heavily renovated, and the rooms that need help — a finished attic, a bonus room over the garage, a converted sunroom, a home office — usually have no practical route for new trunk duct. Ductless conditions those rooms individually for a fraction of what re-ducting a finished house costs.
Electrical and placement
Each outdoor unit needs a dedicated circuit, and larger homes here often support multi-zone outdoor units serving three to five heads. We verify panel capacity on the estimate, place heads for throw and sightlines, and run line sets in cover channel.
Larger homes, more zones
Jericho's later-built colonials are bigger than the postwar stock nearby, and a single outdoor unit rarely covers them well. We plan zone counts around actual room loads, since an undersized multi-head system is the most common ductless complaint we get called to fix.
Local pricing and equipment details on this page were reviewed by our service team in August 2026. Written by the technicians who run the Jericho route out of our Levittown shop.
Why Jericho calls us
Load-calculated per zone
Each head is sized to its room, not to a catalog default, so you get dehumidification instead of short cycles.
Clean, considered installs
Cover channels, tidy penetrations, and pads or brackets set level — the details that make ductless look intentional.
Brands we stand behind
Mitsubishi, Daikin, and Fujitsu equipment, with labor coverage up to 10 years depending on the package and 10-year parts on qualifying installs.
Jericho questions, answered
A single-zone system typically runs $4,200–$7,500 installed. Multi-zone systems with two to four heads generally land between $9,500 and $19,000, depending on head style, line-set length, and electrical work.
Yes. Modern cold-climate heat pumps produce useful heat well below Long Island design temperatures, which is why they're often the right answer for a room a boiler or furnace never served properly.
Single-zone installs are usually a single day. Multi-zone systems typically take two, including the dedicated electrical circuit and startup commissioning.
Yes — a multi-zone condenser can carry up to four or five indoor heads, each with its own control. We confirm the combination is a listed match before quoting it.
Indoor heads run around 19–35 dB on low, quieter than a refrigerator. Placement and correct sizing matter more than the spec sheet, because an oversized head runs at high speed more often.
No. Ductless installs leave your existing system untouched, which is exactly why they work well for Jericho additions and attic conversions.
Need it fixed today in Jericho?
$199 diagnostic — waived when you approve the repair. Flat-rate price before any work starts.
Call (516) 667-0911