Kailey Air Systems
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Zoned Comfort

Ductless Mini Split Systems

Enjoy highly efficient, targeted heating and cooling without the need for extensive ductwork. We specialize in the installation, repair, and maintenance of premium ductless mini-split systems across the Bay Area.

The Ductless Advantage

Why Choose a Mini Split?

Ductless systems are revolutionizing home comfort by offering unparalleled flexibility, efficiency, and customized temperature control.

No Ductwork Needed

Perfect for older homes, new additions, or garages where installing traditional ductwork is impossible or too expensive.

Zoned Temperature Control

Control the exact temperature of individual rooms. Stop cooling empty guest rooms and focus on where you actually are.

Ultra-High Efficiency

Without leaky air ducts wasting conditioned air, mini-splits deliver incredibly high SEER2 ratings, slashing your energy bills.

Whisper-Quiet Operation

Modern ductless indoor units operate so quietly you'll barely know they are running, providing silent, continuous comfort.

Precision Installation

Our Ductless Installation Process

Installing a mini-split is fast and minimally invasive when done by certified professionals. Here's how we do it.

01

Space Assessment

We evaluate the specific rooms you want to condition and perform a load calculation to determine the correct unit size.

02

System Design

We design a single-zone or multi-zone system, planning the best placement for the indoor heads and outdoor condenser.

03

Clean Installation

We drill a small 3-inch hole for the conduit, securely mount the units, and run the refrigerant lines flawlessly.

04

Testing & Handover

We pressure test the lines, demonstrate the remote controls or smart app, and leave your space perfectly clean.

Ductless Mini Split System
Where to Use Them

Ideal Applications for Mini Splits

Ductless mini-splits are incredibly versatile. They can act as a home's primary heating and cooling system, or supplement an existing central HVAC setup.

  • Home Additions & Sunrooms

    Easily add climate control to new spaces without the massive expense of extending your home's existing ductwork.

  • Garage Conversions & ADUs

    Transform a garage or Accessory Dwelling Unit into a fully comfortable living space year-round.

  • Historic & Older Homes

    Preserve the architectural integrity of historic Bay Area homes that lack the wall space for bulky traditional ducts.

  • Solving Hot/Cold Spots

    Fix that one upstairs bedroom that is always too hot in the summer or too cold in the winter.

Kailey Air Systems

The Bay Area's Ductless Experts

Certified Installers

Our technicians are factory-trained to install top mini-split brands perfectly.

Precise Load Calcs

We never guess. We calculate exact loads to ensure your system isn't oversized or undersized.

Upfront Quotes

Clear, detailed estimates with absolutely no hidden fees before we start the installation.

Flexible Financing

Affordable monthly payment plans available to make your comfort upgrade easy.

Installing Ductless Systems Across The Bay Area

San Jose Santa Clara Sunnyvale Mountain View Los Gatos Campbell Fremont Gilroy Morgan Hill
Questions?

Ductless Mini Split FAQs

A ductless mini-split is a highly efficient heat pump system that delivers conditioned air directly into individual rooms. It consists of an outdoor compressor unit connected via a small conduit to one or more indoor air-handling units mounted on the wall or ceiling, requiring zero ductwork.

Yes! Almost all modern mini-splits are heat pumps, meaning they can act as a powerful air conditioner in the summer and reverse their cycle to provide incredibly efficient heating during the winter.

A 'multi-zone' ductless system can connect a single outdoor compressor to up to eight individual indoor units (zones). This allows you to control the temperature in multiple rooms completely independently.

Actually, they are some of the most energy-efficient HVAC systems available. Because they don't lose conditioned air through leaky ductwork (which accounts for up to 30% of energy loss in traditional systems) and utilize variable-speed technology, they often significantly reduce monthly energy bills.

Ready for Zoned Comfort?

Take the first step toward perfect, room-by-room temperature control. Contact our experts today for a free in-home consultation.

Ready to Experience Comfort?

Contact us today to schedule a diagnostic or request an estimate.

Call Us 24/7

(408) 300-0016

Office Location

San Jose, California

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