“How much does your monthly pool service cost?” For most of the clients that we work with, the following pricing guidelines will generally fit just fine (2016). However, we ask that you speak with one of our technicians to verify your specific needs and get an estimate directly. For Most Clients Reading This Blog Post Average size pool 16,000 gallons or less: $100-$110 Screened in Pool $125-$140 Outside Pool Also, our industry provides a broad range of options to choose from