Average Cost
$300
Low End
$150
High End
$600
Time Required
1-3 hours
What Affects the Price?
Most companies charge $3-$10 per panel or a flat rate. A typical 20-panel system costs $150-$400 to clean. Heavily soiled panels (near construction, agriculture, or dusty roads) cost more. Annual cleaning contracts offer 10-20% discounts. Ground-mount systems cost less to clean due to easy access.
Key Cost Factors
- Number of panels
- Roof accessibility
- Level of soiling
- Frequency of cleaning
- Local water quality
- Height of installation
Cost by State (Sample)
| State | Low | High | Avg |
|---|---|---|---|
| Alabama | $138 | $552 | $276 |
| Alaska | $210 | $840 | $420 |
| Arizona | $146 | $582 | $291 |
| Arkansas | $131 | $522 | $261 |
| California | $203 | $810 | $405 |
| Colorado | $162 | $648 | $324 |
| Connecticut | $183 | $732 | $366 |
| Delaware | $158 | $630 | $315 |
| Florida | $150 | $600 | $300 |
| Georgia | $143 | $570 | $285 |