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Daikin Authorized Dealer
Authorized Dealer  |  Long Island, NY

Daikin HVAC Systems
for Long Island Homes

All Seasons Air Conditioning is an authorized Daikin dealer serving Long Island, NY. We install Daikin central air conditioning, Daikin Fit systems, Daikin furnaces, heat pumps, and Daikin mini split ductless systems — with factory-trained technicians and full manufacturer warranty support on every installation.

Authorized Daikin Dealer
Central AC & Mini Splits
12-Year Parts Warranty

Get a Free Daikin Estimate

Central air, mini splits, furnaces & heat pumps

All Seasons is an Authorized Daikin Dealer on Long Island

Factory-trained technicians, genuine Daikin equipment and parts, and full manufacturer warranty support — including the 12-year parts and compressor warranty on registered systems.

Factory-Trained Technicians
12-Year Parts Warranty
Genuine Daikin Equipment & Parts
Serving Long Island Since 1968
Central Air Conditioning & Heating

Daikin Central Air — Whole-Home Comfort

Daikin's unitary line covers the complete spectrum of central heating and air conditioning for Long Island homes — from the innovative Daikin Fit compact system to traditional split system air conditioners, gas furnaces, and heat pumps. As an authorized dealer, All Seasons installs genuine Daikin equipment with full warranty registration on every job.

Daikin Fit — Compact Central Air
Side-discharge design fits where standard units can't

A revolutionary side-discharge central air conditioner for tight Long Island installations — under decks, narrow side yards, against walls. Variable-speed inverter compressor delivers quieter operation and better dehumidification.

Up to 18 SEER2
Variable-Speed
Heat Pump Option
Daikin Central Air Conditioners
Traditional split-system AC for existing ductwork

Straightforward, reliable replacement for aging central AC systems. Pairs with your existing air handler or furnace. Full 12-year parts warranty on registered installations.

Up to 19 SEER2
Works With Existing Air Handler
12-Year Warranty
Daikin Gas Furnaces
High-efficiency gas heating for Long Island homes

Up to 98% AFUE efficiency — nearly all gas burned becomes heat. Variable-speed ECM blower motors deliver quieter, more consistent airflow and better humidity control.

Up to 98% AFUE
Variable-Speed Blower
Pairs With Daikin AC
Daikin Heat Pumps
Year-round heating and cooling in one system

Both heating and air conditioning from a single outdoor unit. Ideal for Long Island homeowners reducing heating costs. Supplemental backup engages automatically when needed.

Heat & Cool in One
Up to 18 SEER2
IRA Tax Credit
Why Daikin Central Air

What Makes Daikin Central Systems Stand Out

12-Year Parts Warranty

The longest standard parts warranty in the industry — 12 years on parts and compressor when registered by an authorized dealer like All Seasons.

Inverter Technology

Daikin's variable-speed inverter compressors modulate output to match your home's actual load — more consistent comfort, lower energy bills, quieter operation.

Quiet Operation

Daikin outdoor units are among the quietest in their class — particularly the Daikin Fit side-discharge design, which can be installed closer to living spaces without noise concerns.

Federal Tax Credits

Qualifying Daikin heat pumps and high-efficiency systems are eligible for federal 25C tax credits under the Inflation Reduction Act — up to $2,000 annually for heat pumps.

Ductless Mini Split Systems

Daikin Mini Splits — No Ductwork Required

Daikin invented the modern ductless mini split system — and remains one of the most trusted names in the technology. A Daikin mini split connects a compact outdoor compressor to one or more indoor air handlers via a small refrigerant line, delivering room-by-room heating and cooling without the need for ductwork.

For Long Island homes without existing ductwork — older properties, additions, converted spaces, homes with hot water baseboard heat — Daikin mini splits are often the most practical and cost-effective path to whole-home air conditioning and efficient electric heating.

As an authorized Daikin dealer, All Seasons handles the full installation — load calculation, equipment selection, refrigerant line routing, indoor unit placement, and commissioning — backed by the 12-year Daikin warranty on registered systems.

Single-Zone Systems

One outdoor unit, one indoor air handler. Perfect for a single room, addition, or problem area. Simplest installation, most cost-effective entry point.

1:1
One outdoor, one indoor
Multi-Zone Systems

One outdoor unit serving multiple indoor zones — each independently controlled. Whole-home comfort without ductwork.

1:5+
One outdoor, up to 5 indoor zones
Wall-Mounted Units

The most common indoor unit type — mounted high on a wall for even air distribution. Sleek, low-profile design.

19 dB
Minimum operating sound level
Ceiling Cassettes

Recessed into the ceiling for 360° air distribution — ideal for open-plan spaces and rooms where wall units aren't preferred.

360°
Air distribution coverage
Floor-Mounted Units

Installed near the floor — ideal for rooms with large windows, low ceilings, or where wall mounting isn't practical.

Low
Profile for tight spaces
Daikin One+ Smart Thermostat

Daikin's smart thermostat integrates with compatible systems for app control, scheduling, and energy monitoring from anywhere.

App
Remote control & scheduling
Which Daikin System Is Right for You?

Daikin Central Air vs. Daikin Mini Split

Both are excellent choices — the right answer depends on your home's existing ductwork, installation constraints, and comfort goals. All Seasons assesses your specific situation before recommending a system.

Feature Daikin Central Air (Unitary) Daikin Mini Split (Ductless)
Requires existing ductwork ✓ Yes — uses existing ducts ✓ No ductwork needed
Whole-home coverage ✓ All rooms via duct system ~ Per-zone (multi-zone configs)
Zone-by-zone control ~ With zoning add-on ✓ Built-in — every zone independent
Installation disruption ~ Moderate (duct connections) ✓ Minimal — 3-inch wall penetration
Peak efficiency (SEER2) Up to 19 SEER2 Up to 23+ SEER2
Heating capability ✓ Heat pump or furnace pairing ✓ Built-in heat pump to -5°F
Best for Homes with existing ductwork replacing aging central AC Homes without ducts, additions, room-by-room zoning
12-year warranty (authorized install) ✓ Yes ✓ Yes
Why Daikin

Why Daikin is a Top Choice for Long Island Homeowners

Pioneer of Inverter Technology

Daikin invented the variable-speed inverter compressor — now industry standard. Their decades of inverter expertise translate into the efficient, quiet systems you get today.

Longest Warranty in the Industry

12-year parts and compressor warranty when installed and registered by an authorized dealer — longer than most competitors offer. All Seasons handles registration as part of every installation.

Best-in-Class Efficiency

Daikin systems consistently rank among the highest SEER2 ratings available — meaning lower electricity bills on Long Island year after year, often offsetting the cost difference vs. budget brands.

Whisper-Quiet Operation

Daikin outdoor units — particularly the Daikin Fit — operate at sound levels far below most central AC systems. Indoor units as low as 19 dB for the mini split line.

Innovative Daikin Fit Design

The Daikin Fit solves a real Long Island problem — older homes with tight side yards or no room for a standard rear-discharge unit. Side-discharge design fits where others won't.

Tax Credits & Rebates

Qualifying Daikin heat pump systems are eligible for federal 25C tax credits under the IRA — up to $2,000 annually. All Seasons can advise on qualifying systems and current Long Island utility rebates.

Common Questions

Daikin HVAC FAQs

What is the Daikin Fit and how is it different from standard central air?
The Daikin Fit is a side-discharge central air conditioner — meaning the air exhausts from the sides rather than the top of the outdoor unit. This design allows installation in tight spaces that standard top-discharge units can't fit: narrow side yards, under decks, against walls with limited clearance. Beyond the form factor, the Daikin Fit uses an inverter compressor for better efficiency and quieter operation than traditional single-stage central AC. It's available as a straight AC or heat pump configuration, and pairs with your existing air handler or furnace.
How much does a Daikin central air system cost installed on Long Island?
Installed costs for a Daikin central air conditioner on Long Island typically range from $4,500–$8,500 depending on system size (tonnage), efficiency tier, and whether the air handler or furnace is also being replaced. The Daikin Fit tends to run slightly higher due to its inverter technology. Daikin heat pumps add roughly $500–$1,500 to the cost of a straight AC system but eliminate the need for separate heating equipment. All Seasons provides a detailed written estimate — including equipment, labor, and disposal — before any work begins.
How much does a Daikin mini split cost installed?
A single-zone Daikin mini split installed on Long Island typically runs $3,500–$5,500 depending on the BTU capacity and indoor unit type. Multi-zone systems are priced by the number of indoor zones — budget $6,000–$14,000+ for whole-home multi-zone configurations. Qualifying Daikin heat pump systems may be eligible for federal tax credits up to $2,000 under the IRA. All Seasons provides a full written estimate before committing to any work.
What warranty comes with Daikin equipment installed by All Seasons?
Daikin systems installed and registered by an authorized dealer like All Seasons qualify for a 12-year parts warranty and 12-year compressor warranty — one of the longest in the HVAC industry. Without authorized dealer installation, the standard warranty is only 5 years. All Seasons handles all warranty registration as part of the installation, with no action required on your part.
Should I choose Daikin central air or a Daikin mini split for my Long Island home?
If your home already has ductwork in good condition, Daikin central air is typically more cost-effective and delivers whole-home comfort through your existing distribution system. If your home has no ductwork — common in older Long Island homes with boiler heat — or you're adding comfort to a specific zone or addition, a Daikin mini split is the right approach. Many Long Island homeowners use both: central air for the main house and a Daikin mini split for a specific room or addition. Our technicians assess your home before making a recommendation.

Ready for a Daikin System on Long Island?

All Seasons is an authorized Daikin dealer — we assess your home, recommend the right system (central or ductless), and install it with the full 12-year Daikin warranty.

Free in-home estimate — central air or mini split
Authorized Daikin dealer — 12-year warranty registered
Daikin Fit, central AC, mini splits, furnaces & heat pumps
Nassau & Suffolk County, Long Island
Family-owned since 1968 — West Babylon, NY
Schedule a Free Estimate Or call 631-694-1616

Long Island's Authorized Daikin Dealer — Central Air & Mini Splits

Whether you need Daikin central air conditioning, a Daikin Fit system, a Daikin furnace, or a Daikin mini split — All Seasons installs the complete Daikin line with the full 12-year warranty. Free estimates, no pressure.