The fastest way to declutter a basement involves a strategic approach. Start with a solid plan and gather necessary supplies. Use the four-box method for quick sorting: keep, donate, sell, and trash. Begin with visible areas and set timers for quick decision-making. Don't forget hidden spaces and consider professional help like Deep Cleaning Seattle for thorough cleaning after decluttering. Be ruthless with decisions and organize as you go for efficient results.

The time required to clean a basement varies significantly based on factors such as size, current condition, and level of cleaning needed. Light cleaning of a well-maintained basement might take 2-4 hours, while deep cleaning of a cluttered space could require 1-2 days or more. Professional services like Deep Cleaning Seattle can efficiently tackle even the most challenging basement cleaning tasks, potentially reducing the time and effort required.