Mini-Split Installation in Nassau County, NY
Compare single-zone, multi-zone, and whole-home ductless options with room-by-room sizing, planned line routes, electrical review, permit responsibilities, and project pricing documented before installation.
Scheduling is opened only through our registered booking page and confirmed from current availability.
Start with the rooms—not a guess
A useful proposal should answer these questions before equipment is ordered:
- Which rooms and loads will each indoor unit serve?
- Where will line sets, drains, wiring, and covers run?
- What electrical, mounting, permit, and inspection work is included?
- What equipment, coverage terms, exclusions, and schedule are written into the proposal?
Project fit
Where ductless mini-splits make sense
Mini-splits can solve one difficult room or support a larger ductless plan. The right configuration depends on the actual building—not a universal head count.
Rooms without usable ductwork
Additions, finished spaces, offices, garages, and other areas where extending ducts is impractical or would consume valuable space.
Persistent hot or cold zones
A dedicated zone may help when an existing system cannot serve a room well, after the underlying load and distribution conditions are assessed.
Ductless-first renovations
Room-by-room control can work well when the plan accounts for closed doors, indoor-unit placement, equipment combinations, and exterior routing.
Heating and cooling from one system
A heat-pump mini-split can provide both modes, but cold-weather capacity and any backup-heat strategy must be matched to the project.
Cost planning
Mini-split installation price ranges
These are planning ranges, not site-unseen estimates. The accepted written proposal controls the final scope and price.
Single-zone installation
$3,500–$5,500
One outdoor unit and one indoor unit for a bedroom, office, addition, garage conversion, or other defined comfort zone.
Multi-zone installation
$6,000–$18,000
Multiple indoor zones designed around room loads, equipment combinations, piping limits, electrical capacity, and control goals.
Whole-home ductless design
Site-specific proposal
A room-by-room design that compares zone count, doorways, indoor-unit styles, outdoor-unit placement, backup heat, and service access.
Installation design
What a complete proposal should document
Room-by-room sizing
Loads—not square footage alone—guide capacity, zone count, and whether adjacent rooms can share an indoor unit.
Indoor-unit placement
Air throw, doors, windows, furniture, ceiling conditions, condensate drainage, and service access all affect placement.
Electrical and outdoor location
The assessment covers available electrical capacity, disconnect requirements, clearances, mounting, sound, snow, and drainage.
Written installation scope
The proposal identifies equipment, line-set routing, electrical work, permits, exclusions, coverage terms, and anticipated scheduling.
Current incentive guidance
The federal 25C tax credit ended for property placed in service after December 31, 2025. HEAR is a separate rebate program previously known as HEEHRA; this page does not promise HEAR eligibility or an amount. Current utility, state, or manufacturer eligibility and amounts must be confirmed in writing for the address and selected equipment before purchase.
Review current incentive guidanceFrom proposal to startup
How the installation process works
Discuss the Project
Share the address, existing equipment, goals, and access conditions.
Assess the Home
Review load, distribution, electrical or fuel requirements, controls, permits, and site conditions.
Review the Proposal
Confirm equipment, included work, exclusions, price, coverage terms, and anticipated schedule in writing.
Authorize the Scope
Work begins only after the project-specific proposal is accepted.
Project timing remains an estimate until equipment availability, permits, inspections, electrical work, access, site conditions, and the authorized scope are documented. Dispatch confirms the current appointment window.
Mini-split installation across Nassau County
Select a city for local service information. Exact ZIP-code coverage and the current appointment window are confirmed before booking.
Visit Our Jericho Office
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Home+ Air & Heat
55 Jericho Tpke Suite 203, Jericho, NY 11753
Mini-split installation FAQs
Plan your ductless installation
Start with a project price range, book an estimate through the registered scheduler page, or call to discuss the rooms you want to condition.