Ductless mini splits are the most flexible way to add heating and cooling to any Bellevue home. No ductwork needed — just a small hole in the wall for the refrigerant line connecting the indoor unit to the outdoor compressor. HotWire installs single-zone and multi-zone mini split systems in homes across Bellevue. Bonus rooms over garages, basement apartments, ADUs, sunrooms, older homes without ducts — we’ve done them all. Free estimates, professional installation, and a system that’s tested and ready before we leave.
Where Mini Splits Work Best
Our mini split installation process is clean and efficient. We mount the indoor unit on the wall, set the outdoor compressor on a pad or wall bracket, drill a 3-inch hole through the wall for the refrigerant line and electrical, make the connections, vacuum the lines, charge the system, and test every function. Most single-zone installations are completed in one day with minimal disruption to your home.
Multi-zone systems use one outdoor unit connected to 2-5 indoor units throughout your home. Each room has its own temperature control. We install multi-zone systems for whole-home climate control in ductless Bellevue homes and for targeted comfort in specific problem rooms. Multi-zone installations typically take 2-3 days depending on the number of zones.
Mitsubishi Electric is the premium choice for ductless heating and cooling. Their Hyper-Heating models maintain full capacity down to -13°F — far beyond what Bellevue’s winters ever reach. We install MSZ wall units, MLZ ceiling cassettes, and SEZ concealed duct models. Mitsubishi’s kumo cloud app integration lets you control your system from your phone.
Daikin mini splits offer excellent efficiency and reliability at a competitive price point. We install the full Daikin residential lineup including single-zone, multi-zone, and the unique Daikin Fit slim-profile outdoor units that work well in tight spaces common in Bellevue’s denser neighborhoods.
Single-zone mini split installation in Bellevue starts around $3,500-$5,000 including equipment and labor. Multi-zone systems (2-5 indoor units) range from $6,000-$15,000 depending on the number of zones and brand. Premium brands like Mitsubishi cost more but offer better cold-climate performance and longer warranties. We provide detailed, written quotes so you know exactly what you’re paying for.






We provide HVAC and appliance repair throughout Bellevue, including: