
In Washington, renting a dehumidifier in 2025 typically costs between $30–$50 per day, $120–$200 per week, and $350–$600 per month. These rates vary based on the capacity and features of the dehumidifier. Leading rental companies in Washington provide a range of options suitable for basement waterproofing projects.
| Vendor | Daily Rate | Weekly Rate | Review Score | Website |
|---|---|---|---|---|
| United Rentals | $150 | $600 | 8 | Visit |
| Sunbelt Rentals | $160 | $640 | 7 | Visit |
| The Home Depot Tool Rental | $54 | $216 | 7 | Visit |
Several factors affect the rental costs of dehumidifiers, including the unit's capacity, energy efficiency, and additional features like built-in pumps. The duration of the rental and the time of year can also impact pricing.
When renting a dehumidifier, be aware of potential hidden fees such as delivery and pick-up charges, which may be flat or mileage-based. Additional costs can include fuel surcharges, damage waivers versus full insurance, cleaning fees for excessive dirt or moisture, late-return penalties, and overtime charges.

The demand for dehumidifiers in Washington is expected to rise due to increased awareness of basement waterproofing and mold prevention. This trend may influence rental availability and pricing, especially during the wetter months.
Ensure compliance with local regulations regarding equipment rental and usage. This includes understanding any environmental guidelines related to dehumidifier operation and disposal of collected water.