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Authorized Daikin Dealer  |  Long Island, NY

Ductless Mini Split
Installation & Service
on Long Island, NY

No ductwork? No problem. All Seasons installs Daikin ductless mini split systems across Long Island — delivering room-by-room comfort control with no major construction required. Family-owned for 58 years.

Free Estimates
Financing Available
Licensed & Insured
58 Years Experience
New System vs. Old — See the Real Savings
Daikin ductless mini split indoor wall unit installed in a Long Island home
Daikin Indoor Wall Unit — Clean, Quiet, Efficient
What Is It?

What Is a Ductless Mini Split System?

A ductless mini split is a heating and cooling system that works without traditional ductwork. It connects an outdoor compressor unit to one or more indoor air-handling units mounted on the wall — delivering conditioned air directly into each room or zone.

Unlike central HVAC systems that push air through ducts (losing up to 30% of energy along the way), mini splits deliver conditioned air straight to where it's needed. The result is better efficiency, quieter operation, and the ability to heat or cool individual rooms independently.

They also function as heat pumps — providing both heating and cooling from a single system, which makes them an efficient year-round solution for Long Island homes.

How It Works

The outdoor unit compresses refrigerant and transfers heat. A small conduit (about 3 inches wide) runs through the wall to the indoor unit, which circulates air in that zone. Each indoor unit has its own thermostat and can be controlled independently — via remote, app, or smart home system.

Why Mini Splits

6 Reasons Long Island Homeowners Love Ductless AC

Ductless mini splits offer advantages that traditional central AC systems simply can't match — especially in older Long Island homes.

No Ductwork Required

Perfect for older Long Island homes without existing ducts, additions, sunrooms, garages, and spaces where running new ductwork would be invasive or expensive.

Zone-by-Zone Control

Set different temperatures in different rooms. No more fighting over the thermostat — everyone gets their ideal comfort level, and you only cool or heat rooms that are occupied.

Superior Energy Efficiency

Daikin mini splits achieve SEER ratings of 20+ — far exceeding traditional systems. By eliminating duct losses, they use significantly less energy to condition the same space.

Whisper-Quiet Operation

Mini split indoor units operate as low as 19 dB — quieter than a library. No noisy ductwork, no rattling vents. Just clean, comfortable silence in every room.

Smart Home & App Control

Daikin mini splits integrate with Wi-Fi control, Amazon Alexa, Google Home, and smartphone apps. Adjust temperature from anywhere — before you even get home.

Heat & Cool Year-Round

Mini splits are heat pumps — one system handles both heating and cooling. Daikin's cold-climate models work down to -13°F, making them a reliable year-round solution on Long Island.

Is It Right for You?

Perfect For These Long Island Situations

A ductless mini split is the right choice when central AC isn't practical, efficient, or affordable.

Older Homes Without Ductwork

Many Long Island homes built before the 1970s were designed with radiator heat and no ducts. Installing central AC ducts means opening walls and ceilings — mini splits avoid that entirely.

Room Additions & Sunrooms

When you add a room, extending existing ductwork is often impractical. A single-zone mini split handles the new space perfectly without overloading your current HVAC system.

Garages & Finished Basements

Home offices, workshops, and finished basements often sit outside your home's main HVAC zone. A ductless unit provides independent, efficient comfort without touching the main system.

Multi-Zone Comfort Control

With a multi-zone mini split, one outdoor unit powers up to 5 indoor units — each with its own temperature setting. Ideal for two-story homes, multi-family units, and offices.

Common Questions

Ductless Mini Split FAQs

How much does a ductless mini split cost to install?
Installation costs vary based on the number of zones, BTU capacity, and your home's layout. A single-zone system typically runs $3,000–$5,500 installed. Multi-zone systems range higher. All Seasons provides free, no-obligation estimates — contact us for exact pricing for your Long Island home.
How long does mini split installation take?
A single-zone installation typically takes half a day to a full day. Multi-zone systems with multiple indoor units may take 1–2 days. Our installation team handles everything — mounting, refrigerant line routing, electrical, and startup testing.
Do ductless mini splits work in winter on Long Island?
Yes. Daikin's cold-climate heat pump models operate efficiently down to -13°F — well below any Long Island winter temperature. They're an excellent supplement or replacement for baseboard heat or oil systems in milder weather.
What's the difference between single-zone and multi-zone?
A single-zone system has one outdoor unit and one indoor unit serving one room or area. A multi-zone system uses one outdoor unit connected to 2–5 indoor units, each independently controlled — perfect for whole-home ductless comfort.
Are ductless mini splits energy efficient?
Very. Most Daikin mini splits carry SEER ratings of 18–25+, compared to 13–16 for standard central AC systems. By eliminating duct losses and allowing zone control, homeowners typically see significant reductions in their energy bills.
Our Brand Partner

Authorized Daikin Mini Split Dealer

All Seasons is an authorized Daikin Pro and Elite dealer — one of the highest certifications Daikin awards to HVAC contractors. That means our technicians receive factory training, we stock genuine Daikin parts, and you get full manufacturer warranty coverage on every system we install.

Daikin is the world's largest HVAC manufacturer, renowned for building the most reliable, efficient, and quiet mini split systems available. Their ductless lineup covers single-zone wall units, multi-zone systems, floor-mounted units, and ceiling cassettes — giving us the right solution for every Long Island home and budget.

Daikin Pro Dealer
Daikin Elite Dealer
Factory Trained
Full Warranty Coverage
58
Years serving Long Island as an authorized Daikin dealer
20+
SEER efficiency rating on qualifying Daikin systems
5★
Five-star rated HVAC company across Long Island
#1
World's largest HVAC manufacturer behind every install
Our Process

How We Install Your Ductless Mini Split

From your free estimate to the moment we switch it on — here's what to expect when All Seasons installs your ductless system.

1
Free Estimate & System Design

We assess your space, measure BTU requirements, and recommend the right Daikin system for your home's layout and budget. No pressure, no obligation.

2
Permits & Scheduling

We handle all required permits for Long Island installations and schedule your install at a time that works for you — usually within days of your estimate approval.

3
Professional Installation

Our certified technicians mount indoor and outdoor units, run refrigerant lines through a small wall penetration, complete all electrical work, and charge the system.

4
Startup & Walkthrough

We test every function, confirm proper operation across all modes, and walk you through your remote, thermostat, and app controls before we leave.

Get Started

Request Your Free Mini Split Estimate

Ready to add ductless comfort to your Long Island home? Tell us about your space and we'll put together a free, no-pressure estimate with Daikin system options and pricing.

  • Free estimates — no cost, no commitment to get a full price quote for your home
  • Daikin equipment — we'll recommend the right model, capacity, and number of zones for your specific situation
  • Fast response — most estimates are scheduled within 1–2 business days across Long Island
  • Serving all of Long Island — Nassau County, Suffolk County, and West Babylon area

Financing available on qualifying Daikin installations. Ask about 0% options when you request your estimate.

Request a Free Estimate

We'll respond within 1 business hour

Where We Install

Ductless Mini Split Installation Across Long Island, NY

All Seasons serves Nassau and Suffolk Counties. If you don't see your town, call us — we cover all of Long Island.

Find Us

Visit All Seasons Air Conditioning — West Babylon, NY

Serving West Babylon and all of Long Island, NY for 58 years.