Basic
$267 – $978 each
Window air conditioner sized to the room with mechanical controls, mounting kit, support bracket, side panels and foam sealing

Photo: jasoneppink · CC BY 2.0 · Source
Supply and install one window air conditioner unit (5,000-18,000 BTU), including mounting kit, sealing and setup; no new circuit.
Window AC Unit in Washington, District of Columbia typically costs $314 to $1,151 each 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 window ac unit.
National average: $300 – $1,100 each
$267 – $978 each
Window air conditioner sized to the room with mechanical controls, mounting kit, support bracket, side panels and foam sealing
$314 – $1,151 each
Higher-efficiency window unit sized to the room with digital controls and remote, support bracket and foam sealing
$392 – $1,439 each
Highest-efficiency window unit with quiet-mode fan sized to the room, app and remote control, support bracket and sealing
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $142 – $520 | each |
| Labor | labor | $109 – $400 | each |
| Supplies & Other | supplies | $38 – $139 | each |
| Equipment & Disposal | equipment | $25 – $92 | each |
BuildX Pro researches and reviews the national price range for Window AC Unit, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Nov 2026.
Connect with local window ac unit contractors in Washington for personalized quotes based on your specific project.