Cost to Install a Ductless Mini-Split
A ductless mini-split installation mounts an indoor air handler and an outdoor condenser, then links them with refrigerant lines, a drain hose, and electrical wiring. Homeowners may choose it as an upgrade or to replace worn equipment. The work involves wall drilling and secure mounting, but high-voltage wiring and specialized refrigerant handling make this a job for a licensed professional.
Common reasons homeowners do this job
- Replacing worn heating and cooling equipment
- Replacing damaged equipment
- Upgrading to a ductless mini-split system
- Choosing a system sized appropriately for the room
DIY or call a pro?
A licensed professional should handle this installation rather than treating it as a DIY mounting project. High-voltage electrical work calls for a licensed electrician, and refrigerant handling requires specialized training and equipment because improper handling is hazardous and regulated. Wall-mounted units also need proper structural support; have the professional resolve any uncertainty about the mounting location.
Frequently asked questions
- Can I install a mini-split myself if I have the mounting tools?
- Having a drill, hole saw, level, stud finder, and torque wrench still leaves this a job for a licensed professional. A licensed professional should do the installation because it includes high-voltage wiring and specialized refrigerant work, as well as confirming structural support for the wall-mounted unit. Professional work also includes leak checks, system pressurization, and refrigerant release, which go well beyond attaching the equipment.
- What makes a ductless mini-split installation more expensive?
- The price scales with the number of mini-split units, the labor time, and the materials needed. Materials include the mini-split kit, refrigerant line set, electrical wire, AC disconnect box, mounting pad or brackets, and line set covers. If the job replaces old equipment, haul-away and disposal can also raise the price.
- What should be checked before choosing a mini-split kit?
- Choose a system size appropriate for the room's square footage and verify the chosen unit's voltage and amperage requirements. Indoor and outdoor locations also need to be determined before installation. Wall thickness and stud locations matter when assessing where the indoor mounting bracket can go.
- What needs to fit through the wall opening for a mini-split?
- The opening must accommodate the refrigerant line set, drain hose, and electrical wiring, beyond the refrigerant piping alone. When discussing the route with the installer, account for all three connections and the line set covers used to protect the exterior piping.
Have a different situation?
Every home is different. Describe yours to Gable Pro and get a diagnosis, a real cost estimate, and — if you want — a match to a vetted local pro.