Business License: Depending on your location, you may need to obtain a business license to operate a pool cleaning business, which can cost anywhere from $50 to several hundred dollars. 2. Insurance: You will need to obtain liability insurance, which can cost from $500 to $5,000 annually, depending on your coverage. 3. Equipment and Supplies: You will need to invest in basic pool cleaning tools such as a vacuum, algae brush, skimmer net, and test strips. You will also need to purchase special chemicals and cleaning products. This can cost anywhere from $200 to $1,000. 4. Vehicle: Depending on the size of your business, you may need to purchase a vehicle to transport your equipment and supplies. Prices will vary depending on the make and model. 5. Advertising: You will need to invest in marketing and advertising to attract customers. This can include purchasing ads in local newspapers and magazines, creating a website or social media presence, and printing flyers or business cards. Costs will vary depending on your chosen methods.