Year-round comfort for Mercer Island homes. Our licensed team installs ductless mini splits for quiet, efficient heating and cooling—tailored to your living space.

From lakefront estates in East Seattle to mid-century homes in First Hill, many Mercer Island residents choose ductless mini splits to improve comfort without adding ductwork. We handle the entire process—design, permits, electrical, and installation—with clean craftsmanship and upfront pricing.

Why ductless fits Mercer Island homes

  • • Many Mercer Island homes are large or custom-built, making traditional ducting costly—ductless mini splits offer efficient zoning.
  • • Perfect for home offices, basement suites, and ADUs, especially popular in island properties.

  • • Energy-efficient inverter technology reduces bills while keeping your home comfortable during both hot summers and chilly winters.

  • • Discreet outdoor installation preserves the curb appeal of waterfront and hillside homes.

Single-Zone vs. Multi-Zone — What’s Right for Your Layout

Single-zone systems are best for master suites, detached offices, or bonus rooms.

Multi-zone systems allow one outdoor condenser to run multiple indoor units (2–6 heads), giving each space individual temperature control.

Our Mercer Island installation process includes:

  • Load calculations for precise system sizing

  • Dust-controlled drilling and weather-sealed wall penetrations

  • Insulated line-sets and tidy condensate routing

  • Dedicated electrical circuits and permit coordination with the City of Mercer Island

  • Startup testing, smart control setup, and full homeowner walkthrough

Typical installs:

  • Single-zone: 1 day

  • Multi-zone: 1–2 days, depending on layout

Equipment & Options

We install Mitsubishi, Daikin, and Gree mini splits, customized for your home:

  • Unit formats: wall-mounted, floor-mounted, or ceiling cassette

  • Noise levels: ultra-quiet operation (20–24 dB(A))

  • Smart controls: Wi-Fi apps, remote access, scheduling

  • Efficiency: ENERGY STAR® and high SEER2 ratings for savings

  • Air filtration: multi-stage filters reduce pollen, dust, and odors

  • Finishing touches: concealed line-sets, color-matched covers, neat penetrations

Fujitsu outdoor heat pump system installed on a residential home for energy-efficient heating and air conditioning
Do ductless systems work for large Mercer Island homes?

Yes. Multi-zone systems can condition several rooms or even whole homes efficiently.

How do ductless systems handle Mercer Island’s lake humidity?

They both cool and dehumidify, improving comfort during hot, humid summer days.

Are ductless units suitable for guest houses or ADUs?

They both cool and dehumidify, improving comfort during hot, humid summer days.

Are ductless units suitable for guest houses or ADUs?

Absolutely. Ductless is perfect for detached spaces, offering independent temperature control.

How visible are the outdoor units?

We place them discreetly, often behind landscaping or along less visible walls, with color-matched covers.

Indoor and outdoor units of a ductless mini-split air conditioner for home cooling and heating