Basic
$1,779 – $6,227 per project
Entry inverter single-zone system around 19-21 SEER2, wall-mount head, insulated line set evacuated and leak-checked, condenser on a pad, disconnect

Install a single-zone ductless mini-split system (one outdoor condenser and one indoor head, 9k-24k BTU), including line set, condensate, electrical disconnect and startup.
Mini Split Air Conditioning System in Washington, District of Columbia typically costs $2,093 to $7,326 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Washington are 5.0% higher than the national average for mini split air conditioning system.
National average: $2,000 – $7,000 per project
$1,779 – $6,227 per project
Entry inverter single-zone system around 19-21 SEER2, wall-mount head, insulated line set evacuated and leak-checked, condenser on a pad, disconnect
$2,093 – $7,326 per project
Mid-efficiency inverter system around 22-24 SEER2, quieter head, Wi-Fi-ready control, line set vacuumed and leak-checked, condenser on a pad
$2,616 – $9,157 per project
High-efficiency inverter system around 25-28 SEER2 with low-ambient rating, Wi-Fi control, nitrogen test, deep vacuum, condenser on a pad
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $945 – $3,308 | job |
| Labor | labor | $728 – $2,548 | job |
| Supplies & Other | supplies | $252 – $882 | job |
| Equipment & Disposal | equipment | $168 – $588 | job |
Connect with local mini split air conditioning system contractors in Washington for personalized quotes based on your specific project.